Merge branch 'master' of https://github.com/odin-lang/Odin

Add extra help line for define/config.

.github/FUNDING.yml

@@ -1,3 +1,4 @@
 # These are supported funding model platforms
 
+github: odin-lang
 patreon: gingerbill

.github/workflows/ci.yml

@@ -7,9 +7,9 @@ jobs:
     steps:
       - uses: actions/checkout@v1
       - name: Download LLVM, botan
-        run: sudo apt-get install llvm-11 clang-11 llvm libbotan-2-dev botan
+        run: sudo apt-get install llvm-11 clang-11 libbotan-2-dev botan
       - name: build odin
-        run: make release
+        run: ./build_odin.sh release
       - name: Odin version
         run: ./odin version
         timeout-minutes: 1
@@ -38,6 +38,18 @@ jobs:
           cd tests/vendor
           make
         timeout-minutes: 10
+      - name: Odin issues tests
+        run: tests/issues/run.sh
+        timeout-minutes: 10
+      - name: Odin check examples/all for Linux i386
+        run: ./odin check examples/all -vet -strict-style -target:linux_i386
+        timeout-minutes: 10
+      - name: Odin check examples/all for FreeBSD amd64
+        run: ./odin check examples/all -vet -strict-style -target:freebsd_amd64
+        timeout-minutes: 10
+      - name: Odin check examples/all for OpenBSD amd64
+        run: ./odin check examples/all -vet -strict-style -target:openbsd_amd64
+        timeout-minutes: 10
   build_macOS:
     runs-on: macos-latest
     steps:
@@ -49,7 +61,7 @@ jobs:
           TMP_PATH=$(xcrun --show-sdk-path)/user/include
           echo "CPATH=$TMP_PATH" >> $GITHUB_ENV
       - name: build odin
-        run: make release
+        run: ./build_odin.sh release
       - name: Odin version
         run: ./odin version
         timeout-minutes: 1
@@ -78,8 +90,17 @@ jobs:
           cd tests/vendor
           make
         timeout-minutes: 10
+      - name: Odin issues tests
+        run: tests/issues/run.sh
+        timeout-minutes: 10
+      - name: Odin check examples/all for Darwin arm64
+        run: ./odin check examples/all -vet -strict-style -target:darwin_arm64
+        timeout-minutes: 10
+      - name: Odin check examples/all for Linux arm64
+        run: ./odin check examples/all -vet -strict-style -target:linux_arm64
+        timeout-minutes: 10
   build_windows:
-    runs-on: windows-latest
+    runs-on: windows-2019
     steps:
       - uses: actions/checkout@v1
       - name: build Odin
@@ -138,3 +159,15 @@ jobs:
           cd tests\core\math\big
           call build.bat
         timeout-minutes: 10
+      - name: Odin issues tests
+        shell: cmd
+        run: |
+          call "C:\Program Files (x86)\Microsoft Visual Studio\2019\Enterprise\VC\Auxiliary\Build\vcvars64.bat
+          call tests\issues\run.bat
+        timeout-minutes: 10
+      - name: Odin check examples/all for Windows 32bits
+        shell: cmd
+        run: |
+          call "C:\Program Files (x86)\Microsoft Visual Studio\2019\Enterprise\VC\Auxiliary\Build\vcvars64.bat
+          odin check examples/all -strict-style -target:windows_i386
+        timeout-minutes: 10

.github/workflows/nightly.yml

@@ -7,7 +7,7 @@ on:
 
 jobs:
   build_windows:
-    runs-on: windows-latest
+    runs-on: windows-2019
     steps:
       - uses: actions/checkout@v1
       - name: build Odin
@@ -41,7 +41,7 @@ jobs:
     steps:
       - uses: actions/checkout@v1
       - name: (Linux) Download LLVM
-        run: sudo apt-get install llvm-11 clang-11 llvm
+        run: sudo apt-get install llvm-11 clang-11
       - name: build odin
         run: make nightly
       - name: Odin run
@@ -129,7 +129,7 @@ jobs:
         run: |
           echo Authorizing B2 account
           b2 authorize-account "$APPID" "$APPKEY"
-          
+
           echo Uploading artifcates to B2
           chmod +x ./ci/upload_create_nightly.sh
           ./ci/upload_create_nightly.sh "$BUCKET" windows-amd64 windows_artifacts/
@@ -141,7 +141,7 @@ jobs:
 
           echo Creating nightly.json
           python3 ci/create_nightly_json.py "$BUCKET" > nightly.json
-          
+
           echo Uploading nightly.json
           b2 upload-file "$BUCKET" nightly.json nightly.json
 

.gitignore

@@ -7,6 +7,9 @@
 # User-specific files (MonoDevelop/Xamarin Studio)
 *.userprefs
 
+# For macOS
+.DS_Store
+
 # Build results
 [Dd]ebug/
 [Dd]ebugPublic/
@@ -276,3 +279,5 @@ shared/
 *.ll
 
 *.sublime-workspace
+examples/bug/
+build.sh

Makefile

@@ -1,64 +1,3 @@
-GIT_SHA=$(shell git rev-parse --short HEAD)
-DISABLED_WARNINGS=-Wno-switch -Wno-macro-redefined -Wno-unused-value
-LDFLAGS=-pthread -ldl -lm -lstdc++
-CFLAGS=-std=c++14 -DGIT_SHA=\"$(GIT_SHA)\"
-CFLAGS:=$(CFLAGS) -DODIN_VERSION_RAW=\"dev-$(shell date +"%Y-%m")\"
-CC=clang
-
-OS=$(shell uname)
-
-ifeq ($(OS), Darwin)
-    
-    ARCH=$(shell uname -m)
-    LLVM_CONFIG=
-
-    # allow for arm only llvm's with version 13
-    ifeq ($(ARCH), arm64)
-        LLVM_VERSIONS = "13.%.%"
-    else
-    # allow for x86 / amd64 all llvm versions begining from 11
-        LLVM_VERSIONS = "13.%.%" "12.0.1" "11.1.0"
-    endif
-
-    LLVM_VERSION_PATTERN_SEPERATOR = )|(
-    LLVM_VERSION_PATTERNS_ESCAPED_DOT = $(subst .,\.,$(LLVM_VERSIONS))
-    LLVM_VERSION_PATTERNS_REPLACE_PERCENT = $(subst %,.*,$(LLVM_VERSION_PATTERNS_ESCAPED_DOT))
-    LLVM_VERSION_PATTERN_REMOVE_ELEMENTS = $(subst " ",$(LLVM_VERSION_PATTERN_SEPERATOR),$(LLVM_VERSION_PATTERNS_REPLACE_PERCENT))
-    LLMV_VERSION_PATTERN_REMOVE_SINGLE_STR = $(subst ",,$(LLVM_VERSION_PATTERN_REMOVE_ELEMENTS))
-    LLVM_VERSION_PATTERN = "^(($(LLMV_VERSION_PATTERN_REMOVE_SINGLE_STR)))"
-
-    ifneq ($(shell llvm-config --version | grep -E $(LLVM_VERSION_PATTERN)),)
-        LLVM_CONFIG=llvm-config
-    else
-        ifeq ($(ARCH), arm64)
-            $(error "Requirement: llvm-config must be base version 13 for arm64")
-        else 
-            $(error "Requirement: llvm-config must be base version greater than 11 for amd64/x86")
-        endif 
-    endif 
-
-    LDFLAGS:=$(LDFLAGS) -liconv
-    CFLAGS:=$(CFLAGS) $(shell $(LLVM_CONFIG) --cxxflags --ldflags)
-    LDFLAGS:=$(LDFLAGS) -lLLVM-C
-endif
-ifeq ($(OS), Linux)
-    LLVM_CONFIG=llvm-config-11
-    ifneq ($(shell which llvm-config-11 2>/dev/null),)
-        LLVM_CONFIG=llvm-config-11
-    else ifneq ($(shell which llvm-config-11-64 2>/dev/null),)
-        LLVM_CONFIG=llvm-config-11-64
-    else
-        ifneq ($(shell llvm-config --version | grep '^11\.'),)
-            LLVM_CONFIG=llvm-config
-        else
-            $(error "Requirement: llvm-config must be version 11")
-        endif
-    endif
-
-    CFLAGS:=$(CFLAGS) $(shell $(LLVM_CONFIG) --cxxflags --ldflags)
-    LDFLAGS:=$(LDFLAGS) $(shell $(LLVM_CONFIG) --libs core native --system-libs)
-endif
-
 all: debug demo
 
 demo:
@@ -68,13 +7,13 @@ report:
 	./odin report
 
 debug:
-	$(CC) src/main.cpp src/libtommath.cpp $(DISABLED_WARNINGS) $(CFLAGS) -g $(LDFLAGS) -o odin
+	./build_odin.sh debug
 
 release:
-	$(CC) src/main.cpp src/libtommath.cpp $(DISABLED_WARNINGS) $(CFLAGS) -O3 $(LDFLAGS) -o odin
+	./build_odin.sh release
 
 release_native:
-	$(CC) src/main.cpp src/libtommath.cpp $(DISABLED_WARNINGS) $(CFLAGS) -O3 -march=native $(LDFLAGS) -o odin
+	./build_odin.sh release-native
 
 nightly:
-	$(CC) src/main.cpp src/libtommath.cpp $(DISABLED_WARNINGS) $(CFLAGS) -DNIGHTLY -O3 $(LDFLAGS) -o odin
+	./build_odin.sh nightly

build_odin.sh

@@ -0,0 +1,150 @@
+#!/bin/bash
+set -eu
+
+GIT_SHA=$(git rev-parse --short HEAD)
+DISABLED_WARNINGS="-Wno-switch -Wno-macro-redefined -Wno-unused-value"
+LDFLAGS="-pthread -lm -lstdc++"
+CFLAGS="-std=c++14 -DGIT_SHA=\"$GIT_SHA\""
+CFLAGS="$CFLAGS -DODIN_VERSION_RAW=\"dev-$(date +"%Y-%m")\""
+CC=clang
+OS=$(uname)
+
+panic() {
+	printf "%s\n" "$1"
+	exit 1
+}
+
+version() { echo "$@" | awk -F. '{ printf("%d%03d%03d%03d\n", $1,$2,$3,$4); }'; }
+
+config_darwin() {
+	ARCH=$(uname -m)
+	LLVM_CONFIG=llvm-config
+
+	# allow for arm only llvm's with version 13
+	if [ ARCH == arm64 ]; then
+		MIN_LLVM_VERSION=("13.0.0")
+	else
+		# allow for x86 / amd64 all llvm versions begining from 11
+		MIN_LLVM_VERSION=("11.1.0")
+	fi
+
+	if [ $(version $($LLVM_CONFIG --version)) -lt $(version $MIN_LLVM_VERSION) ]; then
+		if [ ARCH == arm64 ]; then
+			panic "Requirement: llvm-config must be base version 13 for arm64"
+		else
+			panic "Requirement: llvm-config must be base version greater than 11 for amd64/x86"
+		fi
+	fi
+
+	LDFLAGS="$LDFLAGS -liconv -ldl"
+	CFLAGS="$CFLAGS $($LLVM_CONFIG --cxxflags --ldflags)"
+	LDFLAGS="$LDFLAGS -lLLVM-C"
+}
+
+config_freebsd() {
+	LLVM_CONFIG=/usr/local/bin/llvm-config11
+
+	CFLAGS="$CFLAGS $($LLVM_CONFIG --cxxflags --ldflags)"
+	LDFLAGS="$LDFLAGS $($LLVM_CONFIG --libs core native --system-libs)"
+}
+
+config_openbsd() {
+	LLVM_CONFIG=/usr/local/bin/llvm-config
+
+	LDFLAGS="$LDFLAGS -liconv"
+	CFLAGS="$CFLAGS $($LLVM_CONFIG --cxxflags --ldflags)"
+	LDFLAGS="$LDFLAGS $($LLVM_CONFIG --libs core native --system-libs)"
+}
+
+config_linux() {
+	if which llvm-config > /dev/null 2>&1; then
+		LLVM_CONFIG=llvm-config
+	elif which llvm-config-11 > /dev/null 2>&1; then
+		LLVM_CONFIG=llvm-config-11
+	elif which llvm-config-11-64 > /dev/null 2>&1; then
+		LLVM_CONFIG=llvm-config-11-64
+	else
+		panic "Unable to find LLVM-config"
+	fi
+
+	MIN_LLVM_VERSION=("11.0.0")
+	if [ $(version $($LLVM_CONFIG --version)) -lt $(version $MIN_LLVM_VERSION) ]; then
+		echo "Tried to use " $(which $LLVM_CONFIG) "version" $($LLVM_CONFIG --version)
+		panic "Requirement: llvm-config must be base version greater than 11"
+	fi
+
+	LDFLAGS="$LDFLAGS -ldl"
+	CFLAGS="$CFLAGS $($LLVM_CONFIG --cxxflags --ldflags)"
+	LDFLAGS="$LDFLAGS $($LLVM_CONFIG --libs core native --system-libs)"
+}
+
+build_odin() {
+	case $1 in
+	debug)
+		EXTRAFLAGS="-g"
+		;;
+	release)
+		EXTRAFLAGS="-O3"
+		;;
+	release-native)
+		EXTRAFLAGS="-O3 -march=native"
+		;;
+	nightly)
+		EXTRAFLAGS="-DNIGHTLY -O3"
+		;;
+	*)
+		panic "Build mode unsupported!"
+	esac
+
+	set -x
+	$CC src/main.cpp src/libtommath.cpp $DISABLED_WARNINGS $CFLAGS $EXTRAFLAGS $LDFLAGS -o odin
+	set +x
+}
+
+run_demo() {
+	./odin run examples/demo/demo.odin
+}
+
+case $OS in
+Linux)
+	config_linux
+	;;
+Darwin)
+	config_darwin
+	;;
+OpenBSD)
+	config_openbsd
+	;;
+FreeBSD)
+	config_freebsd
+	;;
+*)
+	panic "Platform unsupported!"
+esac
+
+if [[ $# -eq 0 ]]; then
+	build_odin debug
+	run_demo
+	exit 0
+fi
+
+if [[ $# -eq 1 ]]; then
+	case $1 in
+	report)
+		if [[ ! -f "./odin" ]]; then
+			build_odin debug
+		fi
+
+		./odin report
+		exit 0
+		;;
+	*)
+		build_odin $1
+		;;
+	esac
+
+	run_demo
+	exit 0
+else
+	panic "Too many arguments!"
+fi

core/bufio/scanner.odin

@@ -8,6 +8,7 @@ import "core:intrinsics"
 
 // Extra errors returns by scanning procedures
 Scanner_Extra_Error :: enum i32 {
+	None,
 	Negative_Advance,
 	Advanced_Too_Far,
 	Bad_Read_Count,
@@ -15,7 +16,7 @@ Scanner_Extra_Error :: enum i32 {
 	Too_Short,
 }
 
-Scanner_Error :: union {
+Scanner_Error :: union #shared_nil {
 	io.Error,
 	Scanner_Extra_Error,
 }
@@ -68,7 +69,7 @@ scanner_destroy :: proc(s: ^Scanner) {
 // Returns the first non-EOF error that was encounted by the scanner
 scanner_error :: proc(s: ^Scanner) -> Scanner_Error {
 	switch s._err {
-	case .EOF, .None:
+	case .EOF, nil:
 		return nil
 	}
 	return s._err
@@ -93,10 +94,6 @@ scanner_text :: proc(s: ^Scanner) -> string {
 // scanner_scan advances the scanner
 scanner_scan :: proc(s: ^Scanner) -> bool {
 	set_err :: proc(s: ^Scanner, err: Scanner_Error) {
-		err := err
-		if err == .None {
-			err = nil
-		}
 		switch s._err {
 		case nil, .EOF:
 			s._err = err

core/bytes/bytes.odin

@@ -218,61 +218,37 @@ split_after_n :: proc(s, sep: []byte, n: int, allocator := context.allocator) ->
 
 
 @private
-_split_iterator :: proc(s: ^[]byte, sep: []byte, sep_save, n: int) -> (res: []byte, ok: bool) {
-	s, n := s, n
-
-	if n == 0 {
-		return
-	}
-
-	if sep == nil {
+_split_iterator :: proc(s: ^[]byte, sep: []byte, sep_save: int) -> (res: []byte, ok: bool) {
+	if len(sep) == 0 {
 		res = s[:]
 		ok = true
 		s^ = s[len(s):]
 		return
 	}
 
-	if n < 0 {
-		n = count(s^, sep) + 1
-	}
-
-	n -= 1
-
-	i := 0
-	for ; i < n; i += 1 {
-		m := index(s^, sep)
-		if m < 0 {
-			break
-		}
+	m := index(s^, sep)
+	if m < 0 {
+		// not found
+		res = s[:]
+		ok = len(res) != 0
+		s^ = s[len(s):]
+	} else {
 		res = s[:m+sep_save]
 		ok = true
 		s^ = s[m+len(sep):]
-		return
 	}
-	res = s[:]
-	ok = res != nil
-	s^ = s[len(s):]
 	return
 }
 
 
 split_iterator :: proc(s: ^[]byte, sep: []byte) -> ([]byte, bool) {
-	return _split_iterator(s, sep, 0, -1)
-}
-
-split_n_iterator :: proc(s: ^[]byte, sep: []byte, n: int) -> ([]byte, bool) {
-	return _split_iterator(s, sep, 0, n)
+	return _split_iterator(s, sep, 0)
 }
 
 split_after_iterator :: proc(s: ^[]byte, sep: []byte) -> ([]byte, bool) {
-	return _split_iterator(s, sep, len(sep), -1)
+	return _split_iterator(s, sep, len(sep))
 }
 
-split_after_n_iterator :: proc(s: ^[]byte, sep: []byte, n: int) -> ([]byte, bool) {
-	return _split_iterator(s, sep, len(sep), n)
-}
-
-
 
 index_byte :: proc(s: []byte, c: byte) -> int {
 	for i := 0; i < len(s); i += 1 {

core/c/c.odin

@@ -7,20 +7,20 @@ char           :: builtin.u8  // assuming -funsigned-char
 schar          :: builtin.i8
 short          :: builtin.i16
 int            :: builtin.i32
-long           :: builtin.i32 when (ODIN_OS == "windows" || size_of(builtin.rawptr) == 4) else builtin.i64
+long           :: builtin.i32 when (ODIN_OS == .Windows || size_of(builtin.rawptr) == 4) else builtin.i64
 longlong       :: builtin.i64
 
 uchar          :: builtin.u8
 ushort         :: builtin.u16
 uint           :: builtin.u32
-ulong          :: builtin.u32 when (ODIN_OS == "windows" || size_of(builtin.rawptr) == 4) else builtin.u64
+ulong          :: builtin.u32 when (ODIN_OS == .Windows || size_of(builtin.rawptr) == 4) else builtin.u64
 ulonglong      :: builtin.u64
 
 bool           :: builtin.bool
 
 size_t         :: builtin.uint
 ssize_t        :: builtin.int
-wchar_t        :: builtin.u16 when (ODIN_OS == "windows") else builtin.u32
+wchar_t        :: builtin.u16 when (ODIN_OS == .Windows) else builtin.u32
 
 float          :: builtin.f32
 double         :: builtin.f64
@@ -48,7 +48,7 @@ int_least64_t  :: builtin.i64
 uint_least64_t :: builtin.u64
 
 // Same on Windows, Linux, and FreeBSD
-when ODIN_ARCH == "i386" || ODIN_ARCH == "amd64" {
+when ODIN_ARCH == .i386 || ODIN_ARCH == .amd64 {
 	int_fast8_t    :: builtin.i8
 	uint_fast8_t   :: builtin.u8
 	int_fast16_t   :: builtin.i32

core/c/libc/complex.odin

@@ -2,9 +2,9 @@ package libc
 
 // 7.3 Complex arithmetic
 
-when ODIN_OS == "windows" {
+when ODIN_OS == .Windows {
 	foreign import libc "system:libucrt.lib"
-} else when ODIN_OS == "darwin" {
+} else when ODIN_OS == .Darwin {
 	foreign import libc "system:System.framework"
 } else {
 	foreign import libc "system:c"

core/c/libc/ctype.odin

@@ -1,8 +1,8 @@
 package libc
 
-when ODIN_OS == "windows" {
+when ODIN_OS == .Windows {
 	foreign import libc "system:libucrt.lib"
-} else when ODIN_OS == "darwin" {
+} else when ODIN_OS == .Darwin {
 	foreign import libc "system:System.framework"
 } else {
 	foreign import libc "system:c"

core/c/libc/errno.odin

@@ -2,9 +2,9 @@ package libc
 
 // 7.5 Errors
 
-when ODIN_OS == "windows" {
+when ODIN_OS == .Windows {
 	foreign import libc "system:libucrt.lib"
-} else when ODIN_OS == "darwin" {
+} else when ODIN_OS == .Darwin {
 	foreign import libc "system:System.framework"
 } else {
 	foreign import libc "system:c"
@@ -14,7 +14,7 @@ when ODIN_OS == "windows" {
 //	EDOM,
 //	EILSEQ
 //	ERANGE
-when ODIN_OS == "linux" || ODIN_OS == "freebsd" {
+when ODIN_OS == .Linux || ODIN_OS == .FreeBSD {
 	@(private="file")
 	@(default_calling_convention="c")
 	foreign libc {
@@ -27,7 +27,20 @@ when ODIN_OS == "linux" || ODIN_OS == "freebsd" {
 	ERANGE :: 34
 }
 
-when ODIN_OS == "windows" {
+when ODIN_OS == .OpenBSD {
+	@(private="file")
+	@(default_calling_convention="c")
+	foreign libc {
+		@(link_name="__errno")
+		_get_errno :: proc() -> ^int ---
+	}
+
+	EDOM   :: 33
+	EILSEQ :: 84
+	ERANGE :: 34
+}
+
+when ODIN_OS == .Windows {
 	@(private="file")
 	@(default_calling_convention="c")
 	foreign libc {
@@ -40,7 +53,7 @@ when ODIN_OS == "windows" {
 	ERANGE :: 34
 }
 
-when ODIN_OS == "darwin" {
+when ODIN_OS == .Darwin {
 	@(private="file")
 	@(default_calling_convention="c")
 	foreign libc {

core/c/libc/math.odin

@@ -4,9 +4,9 @@ package libc
 
 import "core:intrinsics"
 
-when ODIN_OS == "windows" {
+when ODIN_OS == .Windows {
 	foreign import libc "system:libucrt.lib"
-} else when ODIN_OS == "darwin" {
+} else when ODIN_OS == .Darwin {
 	foreign import libc "system:System.framework"
 } else {
 	foreign import libc "system:c"

core/c/libc/setjmp.odin

@@ -2,14 +2,14 @@ package libc
 
 // 7.13 Nonlocal jumps
 
-when ODIN_OS == "windows" {
+when ODIN_OS == .Windows {
 	foreign import libc "system:libucrt.lib"
-} else when ODIN_OS == "darwin" {
+} else when ODIN_OS == .Darwin {
 	foreign import libc "system:System.framework"
 } else {
 	foreign import libc "system:c"
 }
-when ODIN_OS == "windows" {
+when ODIN_OS == .Windows {
 	@(default_calling_convention="c")
 	foreign libc {
 		// 7.13.1 Save calling environment

core/c/libc/signal.odin

@@ -2,9 +2,9 @@ package libc
 
 // 7.14 Signal handling
 
-when ODIN_OS == "windows" {
+when ODIN_OS == .Windows {
 	foreign import libc "system:libucrt.lib"
-} else when ODIN_OS == "darwin" {
+} else when ODIN_OS == .Darwin {
 	foreign import libc "system:System.framework"
 } else {
 	foreign import libc "system:c"
@@ -21,7 +21,7 @@ foreign libc {
 	raise  :: proc(sig: int) -> int ---
 }
 
-when ODIN_OS == "windows" {
+when ODIN_OS == .Windows {
 	SIG_ERR :: rawptr(~uintptr(0)) 
 	SIG_DFL :: rawptr(uintptr(0))
 	SIG_IGN :: rawptr(uintptr(1))
@@ -34,7 +34,7 @@ when ODIN_OS == "windows" {
 	SIGTERM :: 15
 }
 
-when ODIN_OS == "linux" || ODIN_OS == "freebsd" {
+when ODIN_OS == .Linux || ODIN_OS == .FreeBSD {
 	SIG_ERR  :: rawptr(~uintptr(0))
 	SIG_DFL  :: rawptr(uintptr(0))
 	SIG_IGN  :: rawptr(uintptr(1)) 
@@ -47,7 +47,7 @@ when ODIN_OS == "linux" || ODIN_OS == "freebsd" {
 	SIGTERM  :: 15
 }
 
-when ODIN_OS == "darwin" {
+when ODIN_OS == .Darwin {
 	SIG_ERR  :: rawptr(~uintptr(0))
 	SIG_DFL  :: rawptr(uintptr(0))
 	SIG_IGN  :: rawptr(uintptr(1)) 

core/c/libc/stdatomic.odin

@@ -47,29 +47,30 @@ kill_dependency :: #force_inline proc(value: $T) -> T {
 
 // 7.17.4 Fences
 atomic_thread_fence :: #force_inline proc(order: memory_order) {
-	switch (order) {
-	case .relaxed:
-		return
-	case .consume:
-		intrinsics.atomic_fence_acq()
-	case .acquire:
-		intrinsics.atomic_fence_acq()
-	case .release:
-		intrinsics.atomic_fence_rel()
-	case .acq_rel:
-		intrinsics.atomic_fence_acqrel()
-	case .seq_cst:
-		intrinsics.atomic_fence_acqrel()
+	assert(order != .relaxed)
+	assert(order != .consume)
+	#partial switch order {
+	case .acquire: intrinsics.atomic_thread_fence(.Acquire)
+	case .release: intrinsics.atomic_thread_fence(.Release)
+	case .acq_rel: intrinsics.atomic_thread_fence(.Acq_Rel)
+	case .seq_cst: intrinsics.atomic_thread_fence(.Seq_Cst)
 	}
 }
 
 atomic_signal_fence :: #force_inline proc(order: memory_order) {
-	atomic_thread_fence(order)
+	assert(order != .relaxed)
+	assert(order != .consume)
+	#partial switch order {
+	case .acquire: intrinsics.atomic_signal_fence(.Acquire)
+	case .release: intrinsics.atomic_signal_fence(.Release)
+	case .acq_rel: intrinsics.atomic_signal_fence(.Acq_Rel)
+	case .seq_cst: intrinsics.atomic_signal_fence(.Seq_Cst)
+	}
 }
 
 // 7.17.5 Lock-free property
 atomic_is_lock_free :: #force_inline proc(obj: ^$T) -> bool {
-	return size_of(T) <= 8 && (intrinsics.type_is_integer(T) || intrinsics.type_is_pointer(T))
+	return intrinsics.atomic_type_is_lock_free(T)
 }
 
 // 7.17.6 Atomic integer types
@@ -121,13 +122,10 @@ atomic_store_explicit :: #force_inline proc(object: ^$T, desired: T, order: memo
 	assert(order != .acquire)
 	assert(order != .acq_rel)
 
-	#partial switch (order) {
-	case .relaxed:
-		intrinsics.atomic_store_relaxed(object, desired)
-	case .release:
-		intrinsics.atomic_store_rel(object, desired)
-	case .seq_cst:
-		intrinsics.atomic_store(object, desired)
+	#partial switch order {
+	case .relaxed: intrinsics.atomic_store_explicit(object, desired, .Relaxed)
+	case .release: intrinsics.atomic_store_explicit(object, desired, .Release)
+	case .seq_cst: intrinsics.atomic_store_explicit(object, desired, .Seq_Cst)
 	}
 }
 
@@ -139,36 +137,26 @@ atomic_load_explicit :: #force_inline proc(object: ^$T, order: memory_order) {
 	assert(order != .release)
 	assert(order != .acq_rel)
 
-	#partial switch (order) {
-	case .relaxed:
-		return intrinsics.atomic_load_relaxed(object)
-	case .consume:
-		return intrinsics.atomic_load_acq(object)
-	case .acquire:
-		return intrinsics.atomic_load_acq(object)
-	case .seq_cst:
-		return intrinsics.atomic_load(object)
+	#partial switch order {
+	case .relaxed: return intrinsics.atomic_load_explicit(object, .Relaxed)
+	case .consume: return intrinsics.atomic_load_explicit(object, .Consume)
+	case .acquire: return intrinsics.atomic_load_explicit(object, .Acquire)
+	case .seq_cst: return intrinsics.atomic_load_explicit(object, .Seq_Cst)
 	}
 }
 
 atomic_exchange :: #force_inline proc(object: ^$T, desired: T) -> T {
-	return intrinsics.atomic_xchg(object, desired)
+	return intrinsics.atomic_exchange(object, desired)
 }
 
 atomic_exchange_explicit :: #force_inline proc(object: ^$T, desired: T, order: memory_order) -> T {
-	switch (order) {
-	case .relaxed:
-		return intrinsics.atomic_xchg_relaxed(object, desired)
-	case .consume:
-		return intrinsics.atomic_xchg_acq(object, desired)
-	case .acquire:
-		return intrinsics.atomic_xchg_acq(object, desired)
-	case .release:
-		return intrinsics.atomic_xchg_rel(object, desired)
-	case .acq_rel:
-		return intrinsics.atomic_xchg_acqrel(object, desired)
-	case .seq_cst:
-		return intrinsics.atomic_xchg(object, desired)
+	switch order {
+	case .relaxed: return intrinsics.atomic_exchange_explicit(object, desired, .Relaxed)
+	case .consume: return intrinsics.atomic_exchange_explicit(object, desired, .Consume)
+	case .acquire: return intrinsics.atomic_exchange_explicit(object, desired, .Acquire)
+	case .release: return intrinsics.atomic_exchange_explicit(object, desired, .Release)
+	case .acq_rel: return intrinsics.atomic_exchange_explicit(object, desired, .Acq_Rel)
+	case .seq_cst: return intrinsics.atomic_exchange_explicit(object, desired, .Seq_Cst)
 	}
 	return false
 }
@@ -189,102 +177,104 @@ atomic_exchange_explicit :: #force_inline proc(object: ^$T, desired: T, order: m
 // 	[success = seq_cst, failure = acquire] => failacq
 // 	[success = acquire, failure = relaxed] => acq_failrelaxed
 // 	[success = acq_rel, failure = relaxed] => acqrel_failrelaxed
-atomic_compare_exchange_strong :: #force_inline proc(object, expected: ^$T, desired: T) {
-	value, ok := intrinsics.atomic_cxchg(object, expected^, desired)
+atomic_compare_exchange_strong :: #force_inline proc(object, expected: ^$T, desired: T) -> bool {
+	value, ok := intrinsics.atomic_compare_exchange_strong(object, expected^, desired)
 	if !ok { expected^ = value } 
 	return ok
 }
 
-atomic_compare_exchange_strong_explicit :: #force_inline proc(object, expected: ^$T, desired: T, success, failure: memory_order) {
+atomic_compare_exchange_strong_explicit :: #force_inline proc(object, expected: ^$T, desired: T, success, failure: memory_order) -> bool {
 	assert(failure != .release)
 	assert(failure != .acq_rel)
 
 	value: T; ok: bool
-	#partial switch (failure) {
+	#partial switch failure {
 	case .seq_cst:
 		assert(success != .relaxed)
-		#partial switch (success) {
+		#partial switch success {
 		case .seq_cst:
-			value, ok := intrinsics.atomic_cxchg(object, expected^, desired)
+			value, ok = intrinsics.atomic_compare_exchange_strong_explicit(object, expected^, desired, .Seq_Cst, .Seq_Cst)
 		case .acquire:
-			value, ok := intrinsics.atomic_cxchg_acq(object, expected^, desired)
+			value, ok = intrinsics.atomic_compare_exchange_strong_explicit(object, expected^, desired, .Acquire, .Seq_Cst)
 		case .consume:
-			value, ok := intrinsics.atomic_cxchg_acq(object, expected^, desired)
+			value, ok = intrinsics.atomic_compare_exchange_strong_explicit(object, expected^, desired, .Consume, .Seq_Cst)
 		case .release:
-			value, ok := intrinsics.atomic_cxchg_rel(object, expected^, desired)
+			value, ok = intrinsics.atomic_compare_exchange_strong_explicit(object, expected^, desired, .Release, .Seq_Cst)
 		case .acq_rel:
-			value, ok := intrinsics.atomic_cxchg_acqrel(object, expected^, desired)
+			value, ok = intrinsics.atomic_compare_exchange_strong_explicit(object, expected^, desired, .Acq_Rel, .Seq_Cst)
 		}
 	case .relaxed:
 		assert(success != .release)
-		#partial switch (success) {
+		#partial switch success {
 		case .relaxed:
-			value, ok := intrinsics.atomic_cxchg_relaxed(object, expected^, desired)
+			value, ok = intrinsics.atomic_compare_exchange_strong_explicit(object, expected^, desired, .Relaxed, .Relaxed)
 		case .seq_cst:
-			value, ok := intrinsics.atomic_cxchg_failrelaxed(object, expected^, desired)
+			value, ok = intrinsics.atomic_compare_exchange_strong_explicit(object, expected^, desired, .Seq_Cst, .Relaxed)
 		case .acquire:
-			value, ok := intrinsics.atomic_cxchg_acq_failrelaxed(object, expected^, desired)
+			value, ok = intrinsics.atomic_compare_exchange_strong_explicit(object, expected^, desired, .Acquire, .Relaxed)
 		case .consume:
-			value, ok := intrinsics.atomic_cxchg_acq_failrelaxed(object, expected^, desired)
+			value, ok = intrinsics.atomic_compare_exchange_strong_explicit(object, expected^, desired, .Consume, .Relaxed)
 		case .acq_rel:
-			value, ok := intrinsics.atomic_cxchg_acqrel_failrelaxed(object, expected^, desired)
+			value, ok = intrinsics.atomic_compare_exchange_strong_explicit(object, expected^, desired, .Acq_Rel, .Relaxed)
 		}
 	case .consume:
-		fallthrough
+		assert(success == .seq_cst)
+		value, ok = intrinsics.atomic_compare_exchange_strong_explicit(object, expected^, desired, .Seq_Cst, .Consume)
 	case .acquire:
 		assert(success == .seq_cst)
-		value, ok := intrinsics.atomic_cxchg_failacq(object, expected^, desired)
+		value, ok = intrinsics.atomic_compare_exchange_strong_explicit(object, expected^, desired, .Seq_Cst, .Acquire)
 
 	}
 	if !ok { expected^ = value }
 	return ok
 }
 
-atomic_compare_exchange_weak :: #force_inline proc(object, expected: ^$T, desired: T) {
-	value, ok := intrinsics.atomic_cxchgweak(object, expected^, desired)
+atomic_compare_exchange_weak :: #force_inline proc(object, expected: ^$T, desired: T) -> bool {
+	value, ok := intrinsics.atomic_compare_exchange_weak(object, expected^, desired)
 	if !ok { expected^ = value }
 	return ok
 }
 
-atomic_compare_exchange_weak_explicit :: #force_inline proc(object, expected: ^$T, desited: T, success, failure: memory_order) {
+atomic_compare_exchange_weak_explicit :: #force_inline proc(object, expected: ^$T, desited: T, success, failure: memory_order) -> bool {
 	assert(failure != .release)
 	assert(failure != .acq_rel)
 
 	value: T; ok: bool
-	#partial switch (failure) {
+	#partial switch failure {
 	case .seq_cst:
 		assert(success != .relaxed)
-		#partial switch (success) {
+		#partial switch success {
 		case .seq_cst:
-			value, ok := intrinsics.atomic_cxchgweak(object, expected^, desired)
+			value, ok = intrinsics.atomic_compare_exchange_weak_explicit(object, expected^, desired, .Seq_Cst, .Seq_Cst)
 		case .acquire:
-			value, ok := intrinsics.atomic_cxchgweak_acq(object, expected^, desired)
+			value, ok = intrinsics.atomic_compare_exchange_weak_explicit(object, expected^, desired, .Acquire, .Seq_Cst)
 		case .consume:
-			value, ok := intrinsics.atomic_cxchgweak_acq(object, expected^, desired)
+			value, ok = intrinsics.atomic_compare_exchange_weak_explicit(object, expected^, desired, .Consume, .Seq_Cst)
 		case .release:
-			value, ok := intrinsics.atomic_cxchgweak_rel(object, expected^, desired)
+			value, ok = intrinsics.atomic_compare_exchange_weak_explicit(object, expected^, desired, .Release, .Seq_Cst)
 		case .acq_rel:
-			value, ok := intrinsics.atomic_cxchgweak_acqrel(object, expected^, desired)
+			value, ok = intrinsics.atomic_compare_exchange_weak_explicit(object, expected^, desired, .Acq_Rel, .Seq_Cst)
 		}
 	case .relaxed:
 		assert(success != .release)
-		#partial switch (success) {
+		#partial switch success {
 		case .relaxed:
-			value, ok := intrinsics.atomic_cxchgweak_relaxed(object, expected^, desired)
+			value, ok = intrinsics.atomic_compare_exchange_weak_explicit(object, expected^, desired, .Relaxed, .Relaxed)
 		case .seq_cst:
-			value, ok := intrinsics.atomic_cxchgweak_failrelaxed(object, expected^, desired)
+			value, ok = intrinsics.atomic_compare_exchange_weak_explicit(object, expected^, desired, .Seq_Cst, .Relaxed)
 		case .acquire:
-			value, ok := intrinsics.atomic_cxchgweak_acq_failrelaxed(object, expected^, desired)
+			value, ok = intrinsics.atomic_compare_exchange_weak_explicit(object, expected^, desired, .Acquire, .Relaxed)
 		case .consume:
-			value, ok := intrinsics.atomic_cxchgweak_acq_failrelaxed(object, expected^, desired)
+			value, ok = intrinsics.atomic_compare_exchange_weak_explicit(object, expected^, desired, .Consume, .Relaxed)
 		case .acq_rel:
-			value, ok := intrinsics.atomic_cxchgweak_acqrel_failrelaxed(object, expected^, desired)
+			value, ok = intrinsics.atomic_compare_exchange_weak_explicit(object, expected^, desired, .Acq_Rel, .Relaxed)
 		}
 	case .consume:
-		fallthrough
+		assert(success == .seq_cst)
+		value, ok = intrinsics.atomic_compare_exchange_weak_explicit(object, expected^, desired, .Seq_Cst, .Consume)
 	case .acquire:
 		assert(success == .seq_cst)
-		value, ok := intrinsics.atomic_cxchgweak_failacq(object, expected^, desired)
+		value, ok = intrinsics.atomic_compare_exchange_weak_explicit(object, expected^, desired, .Seq_Cst, .Acquire)
 
 	}
 	if !ok { expected^ = value }
@@ -297,19 +287,14 @@ atomic_fetch_add :: #force_inline proc(object: ^$T, operand: T) -> T {
 }
 
 atomic_fetch_add_explicit :: #force_inline proc(object: ^$T, operand: T, order: memory_order) -> T {
-	switch (order) {
-	case .relaxed:
-		return intrinsics.atomic_add_relaxed(object, operand)
-	case .consume:
-		return intrinsics.atomic_add_acq(object, operand)
-	case .acquire:
-		return intrinsics.atomic_add_acq(object, operand)
-	case .release:
-		return intrinsics.atomic_add_rel(object, operand)
-	case .acq_rel:
-		return intrinsics.atomic_add_acqrel(object, operand)
-	case .seq_cst:
-		return intrinsics.atomic_add(object, operand)
+	switch order {
+	case .relaxed: return intrinsics.atomic_add_explicit(object, operand, .Relaxed)
+	case .consume: return intrinsics.atomic_add_explicit(object, operand, .Consume)
+	case .acquire: return intrinsics.atomic_add_explicit(object, operand, .Acquire)
+	case .release: return intrinsics.atomic_add_explicit(object, operand, .Release)
+	case .acq_rel: return intrinsics.atomic_add_explicit(object, operand, .Acq_Rel)
+	case: fallthrough
+	case .seq_cst: return intrinsics.atomic_add_explicit(object, operand, .Seq_Cst)
 	}
 }
 
@@ -318,19 +303,14 @@ atomic_fetch_sub :: #force_inline proc(object: ^$T, operand: T) -> T {
 }
 
 atomic_fetch_sub_explicit :: #force_inline proc(object: ^$T, operand: T, order: memory_order) -> T {
-	switch (order) {
-	case .relaxed:
-		return intrinsics.atomic_sub_relaxed(object, operand)
-	case .consume:
-		return intrinsics.atomic_sub_acq(object, operand)
-	case .acquire:
-		return intrinsics.atomic_sub_acq(object, operand)
-	case .release:
-		return intrinsics.atomic_sub_rel(object, operand)
-	case .acq_rel:
-		return intrinsics.atomic_sub_acqrel(object, operand)
-	case .seq_cst:
-		return intrinsics.atomic_sub(object, operand)
+	switch order {
+	case .relaxed: return intrinsics.atomic_sub_explicit(object, operand, .Relaxed)
+	case .consume: return intrinsics.atomic_sub_explicit(object, operand, .Consume)
+	case .acquire: return intrinsics.atomic_sub_explicit(object, operand, .Acquire)
+	case .release: return intrinsics.atomic_sub_explicit(object, operand, .Release)
+	case .acq_rel: return intrinsics.atomic_sub_explicit(object, operand, .Acq_Rel)
+	case: fallthrough
+	case .seq_cst: return intrinsics.atomic_sub_explicit(object, operand, .Seq_Cst)
 	}
 }
 
@@ -339,19 +319,14 @@ atomic_fetch_or :: #force_inline proc(object: ^$T, operand: T) -> T {
 }
 
 atomic_fetch_or_explicit :: #force_inline proc(object: ^$T, operand: T, order: memory_order) -> T {
-	switch (order) {
-	case .relaxed:
-		return intrinsics.atomic_or_relaxed(object, operand)
-	case .consume:
-		return intrinsics.atomic_or_acq(object, operand)
-	case .acquire:
-		return intrinsics.atomic_or_acq(object, operand)
-	case .release:
-		return intrinsics.atomic_or_rel(object, operand)
-	case .acq_rel:
-		return intrinsics.atomic_or_acqrel(object, operand)
-	case .seq_cst:
-		return intrinsics.atomic_or(object, operand)
+	switch order {
+	case .relaxed: return intrinsics.atomic_or_explicit(object, operand, .Relaxed)
+	case .consume: return intrinsics.atomic_or_explicit(object, operand, .Consume)
+	case .acquire: return intrinsics.atomic_or_explicit(object, operand, .Acquire)
+	case .release: return intrinsics.atomic_or_explicit(object, operand, .Release)
+	case .acq_rel: return intrinsics.atomic_or_explicit(object, operand, .Acq_Rel)
+	case: fallthrough
+	case .seq_cst: return intrinsics.atomic_or_explicit(object, operand, .Seq_Cst)
 	}
 }
 
@@ -360,19 +335,14 @@ atomic_fetch_xor :: #force_inline proc(object: ^$T, operand: T) -> T {
 }
 
 atomic_fetch_xor_explicit :: #force_inline proc(object: ^$T, operand: T, order: memory_order) -> T {
-	switch (order) {
-	case .relaxed:
-		return intrinsics.atomic_xor_relaxed(object, operand)
-	case .consume:
-		return intrinsics.atomic_xor_acq(object, operand)
-	case .acquire:
-		return intrinsics.atomic_xor_acq(object, operand)
-	case .release:
-		return intrinsics.atomic_xor_rel(object, operand)
-	case .acq_rel:
-		return intrinsics.atomic_xor_acqrel(object, operand)
-	case .seq_cst:
-		return intrinsics.atomic_xor(object, operand)
+	switch order {
+	case .relaxed: return intrinsics.atomic_xor_explicit(object, operand, .Relaxed)
+	case .consume: return intrinsics.atomic_xor_explicit(object, operand, .Consume)
+	case .acquire: return intrinsics.atomic_xor_explicit(object, operand, .Acquire)
+	case .release: return intrinsics.atomic_xor_explicit(object, operand, .Release)
+	case .acq_rel: return intrinsics.atomic_xor_explicit(object, operand, .Acq_Rel)
+	case: fallthrough
+	case .seq_cst: return intrinsics.atomic_xor_explicit(object, operand, .Seq_Cst)
 	}
 }
 
@@ -380,19 +350,14 @@ atomic_fetch_and :: #force_inline proc(object: ^$T, operand: T) -> T {
 	return intrinsics.atomic_and(object, operand)
 }
 atomic_fetch_and_explicit :: #force_inline proc(object: ^$T, operand: T, order: memory_order) -> T {
-	switch (order) {
-	case .relaxed:
-		return intrinsics.atomic_and_relaxed(object, operand)
-	case .consume:
-		return intrinsics.atomic_and_acq(object, operand)
-	case .acquire:
-		return intrinsics.atomic_and_acq(object, operand)
-	case .release:
-		return intrinsics.atomic_and_rel(object, operand)
-	case .acq_rel:
-		return intrinsics.atomic_and_acqrel(object, operand)
-	case .seq_cst:
-		return intrinsics.atomic_and(object, operand)
+	switch order {
+	case .relaxed: return intrinsics.atomic_and_explicit(object, operand, .Relaxed)
+	case .consume: return intrinsics.atomic_and_explicit(object, operand, .Consume)
+	case .acquire: return intrinsics.atomic_and_explicit(object, operand, .Acquire)
+	case .release: return intrinsics.atomic_and_explicit(object, operand, .Release)
+	case .acq_rel: return intrinsics.atomic_and_explicit(object, operand, .Acq_Rel)
+	case: fallthrough
+	case .seq_cst: return intrinsics.atomic_and_explicit(object, operand, .Seq_Cst)
 	}
 }
 

core/c/libc/stdio.odin

@@ -1,8 +1,8 @@
 package libc
 
-when ODIN_OS == "windows" {
+when ODIN_OS == .Windows {
 	foreign import libc "system:libucrt.lib"
-} else when ODIN_OS == "darwin" {
+} else when ODIN_OS == .Darwin {
 	foreign import libc "system:System.framework"
 } else {
 	foreign import libc "system:c"
@@ -13,7 +13,7 @@ when ODIN_OS == "windows" {
 FILE :: struct {}
 
 // MSVCRT compatible.
-when ODIN_OS == "windows" {
+when ODIN_OS == .Windows {
 	_IOFBF       :: 0x0000
 	_IONBF       :: 0x0004
 	_IOLBF       :: 0x0040
@@ -48,7 +48,7 @@ when ODIN_OS == "windows" {
 }
 
 // GLIBC and MUSL compatible.
-when ODIN_OS == "linux" {
+when ODIN_OS == .Linux {
 	fpos_t        :: struct #raw_union { _: [16]char, _: longlong, _: double, }
 
 	_IOFBF        :: 0
@@ -78,7 +78,57 @@ when ODIN_OS == "linux" {
 	}
 }
 
-when ODIN_OS == "darwin" {
+when ODIN_OS == .OpenBSD {
+	fpos_t :: distinct i64
+
+	_IOFBF :: 0
+	_IOLBF :: 1
+	_IONBF :: 1
+
+	BUFSIZ :: 1024
+
+	EOF :: int(-1)
+
+	FOPEN_MAX	:: 20
+	FILENAME_MAX	:: 1024
+
+	SEEK_SET :: 0
+	SEEK_CUR :: 1
+	SEEK_END :: 2
+
+	foreign libc {
+		stderr: ^FILE
+		stdin:  ^FILE
+		stdout: ^FILE
+	}
+}
+
+when ODIN_OS == .FreeBSD {
+	fpos_t :: distinct i64
+
+	_IOFBF :: 0
+	_IOLBF :: 1
+	_IONBF :: 1
+
+	BUFSIZ :: 1024
+
+	EOF :: int(-1)
+
+	FOPEN_MAX	:: 20
+	FILENAME_MAX	:: 1024
+
+	SEEK_SET :: 0
+	SEEK_CUR :: 1
+	SEEK_END :: 2
+
+	foreign libc {
+		stderr: ^FILE
+		stdin:  ^FILE
+		stdout: ^FILE
+	}
+}
+
+when ODIN_OS == .Darwin {
 	fpos_t :: distinct i64
 	
 	_IOFBF        :: 0

core/c/libc/stdlib.odin

@@ -2,15 +2,15 @@ package libc
 
 // 7.22 General utilities
 
-when ODIN_OS == "windows" {
+when ODIN_OS == .Windows {
 	foreign import libc "system:libucrt.lib"
-} else when ODIN_OS == "darwin" {
+} else when ODIN_OS == .Darwin {
 	foreign import libc "system:System.framework"
 } else {
 	foreign import libc "system:c"
 }
 
-when ODIN_OS == "windows" {
+when ODIN_OS == .Windows {
 	RAND_MAX :: 0x7fff
 
 	@(private="file")
@@ -24,7 +24,7 @@ when ODIN_OS == "windows" {
 	}
 }
 
-when ODIN_OS == "linux" {
+when ODIN_OS == .Linux {
 	RAND_MAX :: 0x7fffffff
 
 	// GLIBC and MUSL only
@@ -40,7 +40,7 @@ when ODIN_OS == "linux" {
 }
 
 
-when ODIN_OS == "darwin" {
+when ODIN_OS == .Darwin {
 	RAND_MAX :: 0x7fffffff
 
 	// GLIBC and MUSL only

core/c/libc/string.odin

@@ -4,9 +4,9 @@ import "core:runtime"
 
 // 7.24 String handling
 
-when ODIN_OS == "windows" {
+when ODIN_OS == .Windows {
 	foreign import libc "system:libucrt.lib"
-} else when ODIN_OS == "darwin" {
+} else when ODIN_OS == .Darwin {
 	foreign import libc "system:System.framework"
 } else {
 	foreign import libc "system:c"

core/c/libc/threads.odin

@@ -5,7 +5,7 @@ package libc
 thrd_start_t :: proc "c" (rawptr) -> int
 tss_dtor_t   :: proc "c" (rawptr)
 
-when ODIN_OS == "windows" {
+when ODIN_OS == .Windows {
 	foreign import libc {
 		"system:libucrt.lib", 
 		"system:msvcprt.lib"
@@ -74,7 +74,7 @@ when ODIN_OS == "windows" {
 }
 
 // GLIBC and MUSL compatible constants and types.
-when ODIN_OS == "linux" {
+when ODIN_OS == .Linux {
 	foreign import libc {
 		"system:c",
 		"system:pthread"
@@ -138,6 +138,6 @@ when ODIN_OS == "linux" {
 }
 
 
-when ODIN_OS == "darwin" {
+when ODIN_OS == .Darwin {
 	// TODO: find out what this is meant to be!
 }

core/c/libc/time.odin

@@ -2,9 +2,9 @@ package libc
 
 // 7.27 Date and time
 
-when ODIN_OS == "windows" {
+when ODIN_OS == .Windows {
 	foreign import libc "system:libucrt.lib"
-} else when ODIN_OS == "darwin" {
+} else when ODIN_OS == .Darwin {
 	foreign import libc "system:System.framework"
 } else {
 	foreign import libc "system:c"
@@ -12,7 +12,7 @@ when ODIN_OS == "windows" {
 
 // We enforce 64-bit time_t and timespec as there is no reason to use 32-bit as
 // we approach the 2038 problem. Windows has defaulted to this since VC8 (2005).
-when ODIN_OS == "windows" {
+when ODIN_OS == .Windows {
 	foreign libc {
 		// 7.27.2 Time manipulation functions
 		                               clock        :: proc() -> clock_t ---
@@ -45,7 +45,7 @@ when ODIN_OS == "windows" {
 	}
 }
 
-when ODIN_OS == "linux" || ODIN_OS == "freebsd" || ODIN_OS == "darwin" {
+when ODIN_OS == .Linux || ODIN_OS == .FreeBSD || ODIN_OS == .Darwin || ODIN_OS == .OpenBSD {
 	@(default_calling_convention="c")
 	foreign libc {
 		// 7.27.2 Time manipulation functions
@@ -63,7 +63,12 @@ when ODIN_OS == "linux" || ODIN_OS == "freebsd" || ODIN_OS == "darwin" {
 		strftime     :: proc(s: [^]char, maxsize: size_t, format: cstring, timeptr: ^tm) -> size_t ---
 	}
 
-	CLOCKS_PER_SEC :: 1000000
+	when ODIN_OS == .OpenBSD {
+		CLOCKS_PER_SEC :: 100
+	} else {
+		CLOCKS_PER_SEC :: 1000000
+	}
+
 	TIME_UTC       :: 1
 
 	time_t         :: distinct i64

core/c/libc/uchar.odin

@@ -2,9 +2,9 @@ package libc
 
 // 7.28 Unicode utilities
 
-when ODIN_OS == "windows" {
+when ODIN_OS == .Windows {
 	foreign import libc "system:libucrt.lib"
-} else when ODIN_OS == "darwin" {
+} else when ODIN_OS == .Darwin {
 	foreign import libc "system:System.framework"
 } else {
 	foreign import libc "system:c"

core/c/libc/wchar.odin

@@ -2,9 +2,9 @@ package libc
 
 // 7.29 Extended multibyte and wide character utilities
 
-when ODIN_OS == "windows" {
+when ODIN_OS == .Windows {
 	foreign import libc "system:libucrt.lib"
-} else when ODIN_OS == "darwin" {
+} else when ODIN_OS == .Darwin {
 	foreign import libc "system:System.framework"
 } else {
 	foreign import libc "system:c"

core/c/libc/wctype.odin

@@ -2,27 +2,34 @@ package libc
 
 // 7.30 Wide character classification and mapping utilities
 
-when ODIN_OS == "windows" {
+when ODIN_OS == .Windows {
 	foreign import libc "system:libucrt.lib"
-} else when ODIN_OS == "darwin" {
+} else when ODIN_OS == .Darwin {
 	foreign import libc "system:System.framework"
 } else {
 	foreign import libc "system:c"
 }
 
-when ODIN_OS == "windows" {
+when ODIN_OS == .Windows {
 	wctrans_t :: distinct wchar_t
 	wctype_t  :: distinct ushort
-}
 
-when ODIN_OS == "linux" {
+} else when ODIN_OS == .Linux {
 	wctrans_t :: distinct intptr_t
 	wctype_t  :: distinct ulong
-}
 
-when ODIN_OS == "darwin" {
+} else when ODIN_OS == .Darwin {
 	wctrans_t :: distinct int
 	wctype_t  :: distinct u32
+
+} else when ODIN_OS == .OpenBSD {
+	wctrans_t :: distinct rawptr
+	wctype_t  :: distinct rawptr
+
+} else when ODIN_OS == .FreeBSD {
+	wctrans_t :: distinct int
+	wctype_t  :: distinct ulong
+	
 }
 
 @(default_calling_convention="c")

core/compress/common.odin

@@ -47,7 +47,7 @@ when size_of(uintptr) == 8 {
 }
 
 
-Error :: union {
+Error :: union #shared_nil {
 	General_Error,
 	Deflate_Error,
 	ZLIB_Error,
@@ -58,6 +58,7 @@ Error :: union {
 }
 
 General_Error :: enum {
+	None = 0,
 	File_Not_Found,
 	Cannot_Open_File,
 	File_Too_Short,
@@ -76,6 +77,7 @@ General_Error :: enum {
 }
 
 GZIP_Error :: enum {
+	None = 0,
 	Invalid_GZIP_Signature,
 	Reserved_Flag_Set,
 	Invalid_Extra_Data,
@@ -100,6 +102,7 @@ GZIP_Error :: enum {
 }
 
 ZIP_Error :: enum {
+	None = 0,
 	Invalid_ZIP_File_Signature,
 	Unexpected_Signature,
 	Insert_Next_Disk,
@@ -107,6 +110,7 @@ ZIP_Error :: enum {
 }
 
 ZLIB_Error :: enum {
+	None = 0,
 	Unsupported_Window_Size,
 	FDICT_Unsupported,
 	Unsupported_Compression_Level,
@@ -114,6 +118,7 @@ ZLIB_Error :: enum {
 }
 
 Deflate_Error :: enum {
+	None = 0,
 	Huffman_Bad_Sizes,
 	Huffman_Bad_Code_Lengths,
 	Inflate_Error,
@@ -139,7 +144,13 @@ Context_Memory_Input :: struct #packed {
 	size_packed:       i64,
 	size_unpacked:     i64,
 }
-#assert(size_of(Context_Memory_Input) == 64)
+when size_of(rawptr) == 8 {
+	#assert(size_of(Context_Memory_Input) == 64)
+} else {
+	// e.g. `-target:windows_i386`
+	#assert(size_of(Context_Memory_Input) == 52)
+}
+
 
 Context_Stream_Input :: struct #packed {
 	input_data:        []u8,
@@ -473,4 +484,4 @@ discard_to_next_byte_lsb_from_stream :: proc(z: ^Context_Stream_Input) {
 	consume_bits_lsb(z, discard)
 }
 
-discard_to_next_byte_lsb :: proc{discard_to_next_byte_lsb_from_memory, discard_to_next_byte_lsb_from_stream};
+discard_to_next_byte_lsb :: proc{discard_to_next_byte_lsb_from_memory, discard_to_next_byte_lsb_from_stream}

core/compress/gzip/gzip.odin

@@ -66,7 +66,8 @@ OS :: enum u8 {
 	_Unknown     = 14,
 	Unknown      = 255,
 }
-OS_Name :: #partial [OS]string{
+OS_Name :: #sparse[OS]string{
+	._Unknown     = "",
 	.FAT          = "FAT",
 	.Amiga        = "Amiga",
 	.VMS          = "VMS/OpenVMS",
@@ -99,7 +100,7 @@ E_GZIP    :: compress.GZIP_Error
 E_ZLIB    :: compress.ZLIB_Error
 E_Deflate :: compress.Deflate_Error
 
-GZIP_MAX_PAYLOAD_SIZE :: int(max(u32le))
+GZIP_MAX_PAYLOAD_SIZE :: i64(max(u32le))
 
 load :: proc{load_from_slice, load_from_file, load_from_context}
 
@@ -135,7 +136,7 @@ load_from_context :: proc(z: ^$C, buf: ^bytes.Buffer, known_gzip_size := -1, exp
 
 	z.output = buf
 
-	if expected_output_size > GZIP_MAX_PAYLOAD_SIZE {
+	if i64(expected_output_size) > i64(GZIP_MAX_PAYLOAD_SIZE) {
 		return E_GZIP.Payload_Size_Exceeds_Max_Payload
 	}
 

core/compress/zlib/zlib.odin

@@ -47,10 +47,10 @@ Options :: struct {
 	level: u8,
 }
 
-Error     :: compress.Error
-E_General :: compress.General_Error
-E_ZLIB    :: compress.ZLIB_Error
-E_Deflate :: compress.Deflate_Error
+Error         :: compress.Error
+General_Error :: compress.General_Error
+ZLIB_Error    :: compress.ZLIB_Error
+Deflate_Error :: compress.Deflate_Error
 
 DEFLATE_MAX_CHUNK_SIZE   :: 65535
 DEFLATE_MAX_LITERAL_SIZE :: 65535
@@ -258,7 +258,7 @@ build_huffman :: proc(z: ^Huffman_Table, code_lengths: []u8) -> (err: Error) {
 
 	for i in 1 ..< HUFFMAN_MAX_BITS {
 		if sizes[i] > (1 << uint(i)) {
-			return E_Deflate.Huffman_Bad_Sizes
+			return .Huffman_Bad_Sizes
 		}
 	}
 	code := int(0)
@@ -270,7 +270,7 @@ build_huffman :: proc(z: ^Huffman_Table, code_lengths: []u8) -> (err: Error) {
 		code = code + sizes[i]
 		if sizes[i] != 0 {
 			if code - 1 >= (1 << u16(i)) {
-				return E_Deflate.Huffman_Bad_Code_Lengths
+				return .Huffman_Bad_Code_Lengths
 			}
 		}
 		z.maxcode[i] = code << (HUFFMAN_MAX_BITS - uint(i))
@@ -314,15 +314,15 @@ decode_huffman_slowpath :: proc(z: ^$C, t: ^Huffman_Table) -> (r: u16, err: Erro
 		s += 1
 	}
 	if s >= 16 {
-		return 0, E_Deflate.Bad_Huffman_Code
+		return 0, .Bad_Huffman_Code
 	}
 	// code size is s, so:
 	b := (k >> (16-s)) - int(t.firstcode[s]) + int(t.firstsymbol[s])
 	if b >= size_of(t.size) {
-		return 0, E_Deflate.Bad_Huffman_Code
+		return 0, .Bad_Huffman_Code
 	}
 	if t.size[b] != s {
-		return 0, E_Deflate.Bad_Huffman_Code
+		return 0, .Bad_Huffman_Code
 	}
 
 	compress.consume_bits_lsb(z, s)
@@ -335,11 +335,11 @@ decode_huffman_slowpath :: proc(z: ^$C, t: ^Huffman_Table) -> (r: u16, err: Erro
 decode_huffman :: proc(z: ^$C, t: ^Huffman_Table) -> (r: u16, err: Error) #no_bounds_check {
 	if z.num_bits < 16 {
 		if z.num_bits > 63 {
-			return 0, E_ZLIB.Code_Buffer_Malformed
+			return 0, .Code_Buffer_Malformed
 		}
 		compress.refill_lsb(z)
 		if z.num_bits > 63 {
-			return 0, E_General.Stream_Too_Short
+			return 0, .Stream_Too_Short
 		}
 	}
 	#no_bounds_check b := t.fast[z.code_buffer & ZFAST_MASK]
@@ -361,7 +361,7 @@ parse_huffman_block :: proc(z: ^$C, z_repeat, z_offset: ^Huffman_Table) -> (err:
 		if value < 256 {
 			e := write_byte(z, u8(value))
 			if e != .None {
-				return E_General.Output_Too_Short
+				return .Output_Too_Short
 			}
 		} else {
 			if value == 256 {
@@ -377,7 +377,7 @@ parse_huffman_block :: proc(z: ^$C, z_repeat, z_offset: ^Huffman_Table) -> (err:
 
 			value, e = decode_huffman(z, z_offset)
 			if e != nil {
-				return E_Deflate.Bad_Huffman_Code
+				return .Bad_Huffman_Code
 			}
 
 			distance := Z_DIST_BASE[value]
@@ -387,7 +387,7 @@ parse_huffman_block :: proc(z: ^$C, z_repeat, z_offset: ^Huffman_Table) -> (err:
 
 			if z.bytes_written < i64(distance) {
 				// Distance is longer than we've decoded so far.
-				return E_Deflate.Bad_Distance
+				return .Bad_Distance
 			}
 
 			/*
@@ -405,14 +405,14 @@ parse_huffman_block :: proc(z: ^$C, z_repeat, z_offset: ^Huffman_Table) -> (err:
 					c := z.output.buf[z.bytes_written - i64(distance)]
 					e := repl_byte(z, length, c)
 					if e != .None {
-						return E_General.Output_Too_Short
+						return .Output_Too_Short
 					}
 				}
 			} else {
 				if length > 0 {
 					e := repl_bytes(z, length, distance)
 					if e != .None {
-						return E_General.Output_Too_Short
+						return .Output_Too_Short
 					}
 				}
 			}
@@ -432,25 +432,25 @@ inflate_from_context :: proc(using ctx: ^compress.Context_Memory_Input, raw := f
 	if !raw {
 		size, size_err := compress.input_size(ctx)
 		if size < 6 || size_err != nil {
-			return E_General.Stream_Too_Short
+			return .Stream_Too_Short
 		}
 
 		cmf, _ := compress.read_u8(ctx)
 
 		method := Compression_Method(cmf & 0xf)
 		if method != .DEFLATE {
-			return E_General.Unknown_Compression_Method
+			return .Unknown_Compression_Method
 		}
 
 		if cinfo := (cmf >> 4) & 0xf; cinfo > 7 {
-			return E_ZLIB.Unsupported_Window_Size
+			return .Unsupported_Window_Size
 		}
 		flg, _ := compress.read_u8(ctx)
 
 		fcheck := flg & 0x1f
 		fcheck_computed := (cmf << 8 | flg) & 0x1f
 		if fcheck != fcheck_computed {
-			return E_General.Checksum_Failed
+			return .Checksum_Failed
 		}
 
 		/*
@@ -458,7 +458,7 @@ inflate_from_context :: proc(using ctx: ^compress.Context_Memory_Input, raw := f
 			They're application specific and PNG doesn't use them.
 		*/
 		if fdict := (flg >> 5) & 1; fdict != 0 {
-			return E_ZLIB.FDICT_Unsupported
+			return .FDICT_Unsupported
 		}
 
 		// flevel  := Compression_Level((flg >> 6) & 3);
@@ -485,7 +485,7 @@ inflate_from_context :: proc(using ctx: ^compress.Context_Memory_Input, raw := f
 		output_hash := hash.adler32(ctx.output.buf[:])
 
 		if output_hash != u32(adler) {
-			return E_General.Checksum_Failed
+			return .Checksum_Failed
 		}
 	}
 	return nil
@@ -555,7 +555,7 @@ inflate_raw :: proc(z: ^$C, expected_output_size := -1, allocator := context.all
 
 
 			if ~uncompressed_len != length_check {
-				return E_Deflate.Len_Nlen_Mismatch
+				return .Len_Nlen_Mismatch
 			}
 
 			/*
@@ -571,7 +571,7 @@ inflate_raw :: proc(z: ^$C, expected_output_size := -1, allocator := context.all
 			assert(uncompressed_len == 0)
 
 		case 3:
-			return E_Deflate.BType_3
+			return .BType_3
 		case:
 			// fmt.printf("Err: %v | Final: %v | Type: %v\n", err, final, type)
 			if type == 1 {
@@ -604,7 +604,7 @@ inflate_raw :: proc(z: ^$C, expected_output_size := -1, allocator := context.all
 					c = decode_huffman(z, codelength_ht) or_return
 
 					if c < 0 || c >= 19 {
-						return E_Deflate.Huffman_Bad_Code_Lengths
+						return .Huffman_Bad_Code_Lengths
 					}
 					if c < 16 {
 						lencodes[n] = u8(c)
@@ -616,7 +616,7 @@ inflate_raw :: proc(z: ^$C, expected_output_size := -1, allocator := context.all
 						case 16:
 							c = u16(compress.read_bits_no_refill_lsb(z, 2) + 3)
 							if n == 0 {
-								return E_Deflate.Huffman_Bad_Code_Lengths
+								return .Huffman_Bad_Code_Lengths
 							}
 							fill = lencodes[n - 1]
 						case 17:
@@ -624,11 +624,11 @@ inflate_raw :: proc(z: ^$C, expected_output_size := -1, allocator := context.all
 						case 18:
 							c = u16(compress.read_bits_no_refill_lsb(z, 7) + 11)
 						case:
-								return E_Deflate.Huffman_Bad_Code_Lengths
+								return .Huffman_Bad_Code_Lengths
 						}
 
 						if ntot - n < u32(c) {
-							return E_Deflate.Huffman_Bad_Code_Lengths
+							return .Huffman_Bad_Code_Lengths
 						}
 
 						nc := n + u32(c)
@@ -639,7 +639,7 @@ inflate_raw :: proc(z: ^$C, expected_output_size := -1, allocator := context.all
 				}
 
 				if n != ntot {
-					return E_Deflate.Huffman_Bad_Code_Lengths
+					return .Huffman_Bad_Code_Lengths
 				}
 
 				build_huffman(z_repeat, lencodes[:hlit])     or_return
@@ -677,4 +677,4 @@ inflate_from_byte_array_raw :: proc(input: []u8, buf: ^bytes.Buffer, raw := fals
 	return inflate_raw(z=&ctx, expected_output_size=expected_output_size)
 }
 
-inflate :: proc{inflate_from_context, inflate_from_byte_array};
+inflate :: proc{inflate_from_context, inflate_from_byte_array}

core/container/bit_array/bit_array.odin

@@ -1,6 +1,7 @@
 package dynamic_bit_array
 
 import "core:intrinsics"
+import "core:mem"
 
 /*
 	Note that these constants are dependent on the backing being a u64.
@@ -11,11 +12,120 @@ INDEX_SHIFT :: 6
 @(private="file")
 INDEX_MASK  :: 63
 
+@(private="file")
+NUM_BITS :: 64
+
 Bit_Array :: struct {
-	bits: [dynamic]u64,
-	bias: int,
+	bits:         [dynamic]u64,
+	bias:         int,
+	max_index:    int,
+	free_pointer: bool,
 }
 
+Bit_Array_Iterator :: struct {
+	array:    ^Bit_Array,
+	word_idx: int,
+	bit_idx:  uint,
+}
+
+/*
+	In:
+		- ba:   ^Bit_Array - the array to iterate over
+
+	Out:
+		- it:   ^Bit_Array_Iterator - the iterator that holds iteration state
+*/
+make_iterator :: proc (ba: ^Bit_Array) -> (it: Bit_Array_Iterator) {
+	return Bit_Array_Iterator { array = ba }
+}
+
+/*
+	In:
+		- it:    ^Bit_Array_Iterator - the iterator struct that holds the state.
+
+	Out:
+		- set:    bool - the state of the bit at `index`
+		- index:  int - the next bit of the Bit_Array referenced by `it`.
+		- ok:	  bool - `true` if the iterator returned a valid index,
+			  `false` if there were no more bits
+*/
+iterate_by_all :: proc (it: ^Bit_Array_Iterator) -> (set: bool, index: int, ok: bool) {
+	index = it.word_idx * NUM_BITS + int(it.bit_idx) + it.array.bias
+	if index > it.array.max_index { return false, 0, false }
+
+	word := it.array.bits[it.word_idx] if len(it.array.bits) > it.word_idx else 0
+	set = (word >> it.bit_idx & 1) == 1
+
+	it.bit_idx += 1
+	if it.bit_idx >= NUM_BITS {
+		it.bit_idx = 0
+		it.word_idx += 1
+	}
+
+	return set, index, true
+}
+
+/*
+	In:
+		- it:     ^Bit_Array_Iterator - the iterator struct that holds the state.
+
+	Out:
+		- index:  int - the next set bit of the Bit_Array referenced by `it`.
+		- ok:	  bool - `true` if the iterator returned a valid index,
+			  `false` if there were no more bits set
+*/
+iterate_by_set :: proc (it: ^Bit_Array_Iterator) -> (index: int, ok: bool) {
+	return iterate_internal_(it, true)
+}
+
+/*
+	In:
+		- it:	  ^Bit_Array_Iterator - the iterator struct that holds the state.
+
+	Out:
+		- index:  int - the next unset bit of the Bit_Array referenced by `it`.
+		- ok:	  bool - `true` if the iterator returned a valid index,
+			  `false` if there were no more unset bits
+*/
+iterate_by_unset:: proc (it: ^Bit_Array_Iterator) -> (index: int, ok: bool) {
+	return iterate_internal_(it, false)
+}
+
+@(private="file")
+iterate_internal_ :: proc (it: ^Bit_Array_Iterator, $ITERATE_SET_BITS: bool) -> (index: int, ok: bool) {
+	word := it.array.bits[it.word_idx] if len(it.array.bits) > it.word_idx else 0
+	when ! ITERATE_SET_BITS { word = ~word }
+
+	// if the word is empty or we have already gone over all the bits in it,
+	// b.bit_idx is greater than the index of any set bit in the word,
+	// meaning that word >> b.bit_idx == 0.
+	for it.word_idx < len(it.array.bits) && word >> it.bit_idx == 0 {
+		it.word_idx += 1
+		it.bit_idx = 0
+		word = it.array.bits[it.word_idx] if len(it.array.bits) > it.word_idx else 0
+		when ! ITERATE_SET_BITS { word = ~word }
+	}
+
+	// if we are iterating the set bits, reaching the end of the array means we have no more bits to check
+	when ITERATE_SET_BITS {
+		if it.word_idx >= len(it.array.bits) {
+			return 0, false
+		}
+	}
+
+	// reaching here means that the word has some set bits
+	it.bit_idx += uint(intrinsics.count_trailing_zeros(word >> it.bit_idx))
+	index = it.word_idx * NUM_BITS + int(it.bit_idx) + it.array.bias
+
+	it.bit_idx += 1
+	if it.bit_idx >= NUM_BITS {
+		it.bit_idx = 0
+		it.word_idx += 1
+	}
+	return index, index <= it.array.max_index
+}
+
+
 /*
 	In:
 		- ba:    ^Bit_Array - a pointer to the Bit Array
@@ -70,6 +180,7 @@ set :: proc(ba: ^Bit_Array, #any_int index: uint, allocator := context.allocator
 
 	resize_if_needed(ba, leg_index) or_return
 
+	ba.max_index = max(idx, ba.max_index)
 	ba.bits[leg_index] |= 1 << uint(bit_index)
 	return true
 }
@@ -77,7 +188,7 @@ set :: proc(ba: ^Bit_Array, #any_int index: uint, allocator := context.allocator
 /*
 	A helper function to create a Bit Array with optional bias, in case your smallest index is non-zero (including negative).
 */
-create :: proc(max_index: int, min_index := 0, allocator := context.allocator) -> (res: Bit_Array, ok: bool) #optional_ok {
+create :: proc(max_index: int, min_index := 0, allocator := context.allocator) -> (res: ^Bit_Array, ok: bool) #optional_ok {
 	context.allocator = allocator
 	size_in_bits := max_index - min_index
 
@@ -85,10 +196,11 @@ create :: proc(max_index: int, min_index := 0, allocator := context.allocator) -
 
 	legs := size_in_bits >> INDEX_SHIFT
 
-	res = Bit_Array{
-		bias = min_index,
-	}
-	return res, resize_if_needed(&res, legs)
+	res = new(Bit_Array)
+	res.bias         = min_index
+	res.max_index    = max_index
+	res.free_pointer = true
+	return res, resize_if_needed(res, legs)
 }
 
 /*
@@ -96,7 +208,7 @@ create :: proc(max_index: int, min_index := 0, allocator := context.allocator) -
 */
 clear :: proc(ba: ^Bit_Array) {
 	if ba == nil { return }
-	ba.bits = {}
+	mem.zero_slice(ba.bits[:])
 }
 
 /*
@@ -105,6 +217,9 @@ clear :: proc(ba: ^Bit_Array) {
 destroy :: proc(ba: ^Bit_Array) {
 	if ba == nil { return }
 	delete(ba.bits)
+	if ba.free_pointer { // Only free if this Bit_Array was created using `create`, not when on the stack.
+		free(ba)
+	}
 }
 
 /*
@@ -121,4 +236,4 @@ resize_if_needed :: proc(ba: ^Bit_Array, legs: int, allocator := context.allocat
 		resize(&ba.bits, legs + 1)
 	}
 	return len(ba.bits) > legs
-}
+}

core/container/bit_array/doc.odin

@@ -21,6 +21,7 @@ package dynamic_bit_array
 			// returns `false`, `false`, because this Bit Array wasn't created to allow negative indices.
 			was_set, was_retrieved := get(&bits, -1)
 			fmt.println(was_set, was_retrieved) 
+			destroy(&bits)
 		}
 
 	-- A Bit Array can optionally allow for negative indices, if the mininum value was given during creation:
@@ -40,13 +41,13 @@ package dynamic_bit_array
 			using bit_array
 
 			bits := create(int(max(Foo)), int(min(Foo)))
-			defer destroy(&bits)
+			defer destroy(bits)
 
-			fmt.printf("Set(Bar):           %v\n",     set(&bits, Foo.Bar))
-			fmt.printf("Get(Bar):           %v, %v\n", get(&bits, Foo.Bar))
-			fmt.printf("Set(Negative_Test): %v\n",     set(&bits, Foo.Negative_Test))
-			fmt.printf("Get(Leaves):        %v, %v\n", get(&bits, Foo.Leaves))
-			fmt.printf("Get(Negative_Test): %v, %v\n", get(&bits, Foo.Negative_Test))
+			fmt.printf("Set(Bar):           %v\n",     set(bits, Foo.Bar))
+			fmt.printf("Get(Bar):           %v, %v\n", get(bits, Foo.Bar))
+			fmt.printf("Set(Negative_Test): %v\n",     set(bits, Foo.Negative_Test))
+			fmt.printf("Get(Leaves):        %v, %v\n", get(bits, Foo.Leaves))
+			fmt.printf("Get(Negative_Test): %v, %v\n", get(bits, Foo.Negative_Test))
 			fmt.printf("Freed.\n")
 		}
 */

core/container/lru/lru_cache.odin

@@ -1,9 +1,9 @@
 package container_lru
 
+import "core:runtime"
 import "core:intrinsics"
-import "core:mem"
+_ :: runtime
 _ :: intrinsics
-_ :: mem
 
 Node :: struct($Key, $Value: typeid) where intrinsics.type_is_valid_map_key(Key) {
 	prev, next: ^Node(Key, Value),
@@ -23,11 +23,10 @@ Cache :: struct($Key, $Value: typeid) where intrinsics.type_is_valid_map_key(Key
 	count:    int,
 	capacity: int,
 
-	node_allocator: mem.Allocator,
+	node_allocator: runtime.Allocator,
 
 	on_remove: proc(key: Key, value: Value, user_data: rawptr),
 	on_remove_user_data: rawptr,
-	call_on_remove_on_destroy: bool,
 }
 
 // init initializes a Cache
@@ -37,23 +36,28 @@ init :: proc(c: ^$C/Cache($Key, $Value), capacity: int, entries_allocator := con
 	c.capacity = capacity
 }
 
-// destroy deinitializes a Cache
-destroy :: proc(c: ^$C/Cache($Key, $Value)) {
+// destroy deinitializes a Cachem
+destroy :: proc(c: ^$C/Cache($Key, $Value), call_on_remove: bool) {
+	clear(c, call_on_remove)
+	delete(c.entries)
+}
+
+// clear the contents of a Cache
+clear :: proc(c: ^$C/Cache($Key, $Value), call_on_remove: bool) {
 	for _, node in c.entries {
-		if c.call_on_remove_on_destroy && c.on_remove != nil {
-			c.on_remove(node.key, node.value, c.on_remove_user_data)
+		if call_on_remove {
+			_call_on_remove(c, node)
 		}
 		free(node, c.node_allocator)
 	}
-	clear(&c.entries)
-	delete(c.entries)
+	runtime.clear(&c.entries)
 	c.head = nil
 	c.tail = nil
 	c.count = 0
 }
 
 // set the given key value pair. This operation updates the recent usage of the item.
-set :: proc(c: ^$C/Cache($Key, $Value), key: Key, value: Value) -> mem.Allocator_Error {
+set :: proc(c: ^$C/Cache($Key, $Value), key: Key, value: Value) -> runtime.Allocator_Error {
 	if e, ok := c.entries[key]; ok {
 		e.value = value
 		return nil
@@ -143,14 +147,19 @@ _remove_node :: proc(c: ^$C/Cache($Key, $Value), node: ^Node(Key, Value)) {
 
 	delete_key(&c.entries, node.key)
 
-	if c.on_remove != nil {
-		c.on_remove(node.key, node.value, c.on_remove_user_data)
-	}
+	_call_on_remove(c, node)
 
 	free(node, c.node_allocator)
 
 }
 
+@(private)
+_call_on_remove :: proc(c: ^$C/Cache($Key, $Value), node: ^Node(Key, Value)) {
+	if c.on_remove != nil {
+		c.on_remove(node.key, node.value, c.on_remove_user_data)
+	}
+}
+
 @(private)
 _push_front_node :: proc(c: ^$C/Cache($Key, $Value), e: ^Node(Key, Value)) {
 	if c.head != nil {

core/container/small_array/small_array.odin

@@ -25,14 +25,14 @@ slice :: proc(a: ^$A/Small_Array($N, $T)) -> []T {
 }
 
 
-get :: proc(a: $A/Small_Array($N, $T), index: int, loc := #caller_location) -> T {
+get :: proc(a: $A/Small_Array($N, $T), index: int) -> T {
 	return a.data[index]
 }
-get_ptr :: proc(a: $A/Small_Array($N, $T), index: int, loc := #caller_location) -> ^T {
+get_ptr :: proc(a: ^$A/Small_Array($N, $T), index: int) -> ^T {
 	return &a.data[index]
 }
 
-set :: proc(a: ^$A/Small_Array($N, $T), index: int, item: T, loc := #caller_location) {
+set :: proc(a: ^$A/Small_Array($N, $T), index: int, item: T) {
 	a.data[index] = item
 }
 

core/container/topological_sort/topological_sort.odin

@@ -0,0 +1,98 @@
+// The following is a generic O(V+E) topological sorter implementation.
+// This is the fastest known method for topological sorting and Odin's
+// map type is being used to accelerate lookups.
+package container_topological_sort
+
+import "core:intrinsics"
+import "core:runtime"
+_ :: intrinsics
+_ :: runtime
+
+
+Relations :: struct($K: typeid) where intrinsics.type_is_valid_map_key(K) {
+	dependents:   map[K]bool,
+	dependencies: int,
+}
+
+Sorter :: struct(K: typeid) where intrinsics.type_is_valid_map_key(K)  {
+	relations: map[K]Relations(K),
+	dependents_allocator: runtime.Allocator,
+}
+
+@(private="file")
+make_relations :: proc(sorter: ^$S/Sorter($K)) -> (r: Relations(K)) {
+	r.dependents.allocator = sorter.dependents_allocator
+	return
+}
+
+
+init :: proc(sorter: ^$S/Sorter($K)) {
+	sorter.relations = make(map[K]Relations(K))
+	sorter.dependents_allocator = context.allocator
+}
+
+destroy :: proc(sorter: ^$S/Sorter($K)) {
+	for _, v in &sorter.relations {
+		delete(v.dependents)
+	}
+	delete(sorter.relations)
+}
+
+add_key :: proc(sorter: ^$S/Sorter($K), key: K) -> bool {
+	if key in sorter.relations {
+		return false
+	}
+	sorter.relations[key] = make_relations(sorter)
+	return true
+}
+
+add_dependency :: proc(sorter: ^$S/Sorter($K), key, dependency: K) -> bool {
+	if key == dependency {
+		return false
+	}
+
+	find := &sorter.relations[dependency]
+	if find == nil {
+		find = map_insert(&sorter.relations, dependency, make_relations(sorter))
+	}
+
+	if find.dependents[key] {
+		return true
+	}
+	find.dependents[key] = true
+
+ 	find = &sorter.relations[key]
+	if find == nil {
+		find = map_insert(&sorter.relations, key, make_relations(sorter))
+	}
+
+	find.dependencies += 1
+
+	return true
+}
+
+sort :: proc(sorter: ^$S/Sorter($K)) -> (sorted, cycled: [dynamic]K) {
+	relations := &sorter.relations
+
+	for k, v in relations {
+		if v.dependencies == 0 {
+			append(&sorted, k)
+		}
+	}
+
+	for root in &sorted do for k, _ in relations[root].dependents {
+		relation := &relations[k]
+		relation.dependencies -= 1
+		if relation.dependencies == 0 {
+			append(&sorted, k)
+		}
+	}
+
+	for k, v in relations {
+		if v.dependencies != 0 {
+			append(&cycled, k)
+		}
+	}
+
+	return
+}

core/crypto/_fiat/field_poly1305/field.odin

@@ -22,7 +22,7 @@ fe_from_bytes :: #force_inline proc (out1: ^Tight_Field_Element, arg1: []byte, a
 
 	assert(len(arg1) == 16)
 
-	when ODIN_ARCH == "i386" || ODIN_ARCH == "amd64" {
+	when ODIN_ARCH == .i386 || ODIN_ARCH == .amd64 {
 		// While it may be unwise to do deserialization here on our
 		// own when fiat-crypto provides equivalent functionality,
 		// doing it this way provides a little under 3x performance

core/crypto/chacha20/chacha20.odin

@@ -346,7 +346,7 @@ _do_blocks :: proc (ctx: ^Context, dst, src: []byte, nr_blocks: int) {
 		// Until dedicated assembly can be written leverage the fact that
 		// the callers of this routine ensure that src/dst are valid.
 
-		when ODIN_ARCH == "i386" || ODIN_ARCH == "amd64" {
+		when ODIN_ARCH == .i386 || ODIN_ARCH == .amd64 {
 			// util.PUT_U32_LE/util.U32_LE are not required on little-endian
 			// systems that also happen to not be strict about aligned
 			// memory access.

core/crypto/rand_generic.odin

@@ -1,6 +1,6 @@
 package crypto
 
-when ODIN_OS != "linux" {
+when ODIN_OS != .Linux && ODIN_OS != .OpenBSD && ODIN_OS != .Windows {
 	_rand_bytes :: proc (dst: []byte) {
 		unimplemented("crypto: rand_bytes not supported on this OS")
 	}

core/crypto/rand_openbsd.odin

@@ -0,0 +1,12 @@
+package crypto
+
+import "core:c"
+
+foreign import libc "system:c"
+foreign libc {
+	arc4random_buf :: proc "c" (buf: rawptr, nbytes: c.size_t) ---
+}
+
+_rand_bytes :: proc (dst: []byte) {
+	arc4random_buf(raw_data(dst), len(dst))
+}

core/crypto/rand_windows.odin

@@ -0,0 +1,23 @@
+package crypto
+
+import win32 "core:sys/windows"
+import "core:os"
+import "core:fmt"
+
+_rand_bytes :: proc(dst: []byte) {
+	ret := (os.Errno)(win32.BCryptGenRandom(nil, raw_data(dst), u32(len(dst)), win32.BCRYPT_USE_SYSTEM_PREFERRED_RNG))
+	if ret != os.ERROR_NONE {
+		switch ret {
+			case os.ERROR_INVALID_HANDLE:
+				// The handle to the first parameter is invalid.
+				// This should not happen here, since we explicitly pass nil to it
+				panic("crypto: BCryptGenRandom Invalid handle for hAlgorithm")
+			case os.ERROR_INVALID_PARAMETER:
+				// One of the parameters was invalid
+				panic("crypto: BCryptGenRandom Invalid parameter")
+			case:
+				// Unknown error
+				panic(fmt.tprintf("crypto: BCryptGenRandom failed: %d\n", ret))
+		}
+	}
+}

core/crypto/siphash/siphash.odin

@@ -0,0 +1,335 @@
+package siphash
+
+/*
+    Copyright 2022 zhibog
+    Made available under the BSD-3 license.
+
+    List of contributors:
+        zhibog:  Initial implementation.
+
+    Implementation of the SipHash hashing algorithm, as defined at <https://github.com/veorq/SipHash> and <https://www.aumasson.jp/siphash/siphash.pdf>
+
+    Use the specific procedures for a certain setup. The generic procdedures will default to Siphash 2-4
+*/
+
+import "core:crypto"
+import "core:crypto/util"
+
+/*
+    High level API
+*/
+
+KEY_SIZE    :: 16
+DIGEST_SIZE :: 8
+
+// sum_string_1_3 will hash the given message with the key and return
+// the computed hash as a u64
+sum_string_1_3 :: proc(msg, key: string) -> u64 {
+    return sum_bytes_1_3(transmute([]byte)(msg), transmute([]byte)(key))
+}
+
+// sum_bytes_1_3 will hash the given message with the key and return
+// the computed hash as a u64
+sum_bytes_1_3 :: proc (msg, key: []byte) -> u64 {
+    ctx: Context
+    hash: u64
+    init(&ctx, key, 1, 3)
+    update(&ctx, msg)
+    final(&ctx, &hash)
+    return hash
+}
+
+// sum_string_to_buffer_1_3 will hash the given message with the key and write
+// the computed hash into the provided destination buffer
+sum_string_to_buffer_1_3 :: proc(msg, key: string, dst: []byte) {
+    sum_bytes_to_buffer_1_3(transmute([]byte)(msg), transmute([]byte)(key), dst)
+}
+
+// sum_bytes_to_buffer_1_3 will hash the given message with the key and write
+// the computed hash into the provided destination buffer
+sum_bytes_to_buffer_1_3 :: proc(msg, key, dst: []byte) {
+    assert(len(dst) >= DIGEST_SIZE, "crypto/siphash: Destination buffer needs to be at least of size 8")
+    hash  := sum_bytes_1_3(msg, key)
+    _collect_output(dst[:], hash)
+}
+
+sum_1_3 :: proc {
+    sum_string_1_3,
+    sum_bytes_1_3,
+    sum_string_to_buffer_1_3,
+    sum_bytes_to_buffer_1_3,
+}
+
+// verify_u64_1_3 will check if the supplied tag matches with the output you 
+// will get from the provided message and key
+verify_u64_1_3 :: proc (tag: u64 msg, key: []byte) -> bool {
+    return sum_bytes_1_3(msg, key) == tag
+}
+
+// verify_bytes will check if the supplied tag matches with the output you 
+// will get from the provided message and key
+verify_bytes_1_3 :: proc (tag, msg, key: []byte) -> bool {
+    derived_tag: [8]byte
+    sum_bytes_to_buffer_1_3(msg, key, derived_tag[:])
+    return crypto.compare_constant_time(derived_tag[:], tag) == 1
+}
+
+verify_1_3 :: proc {
+    verify_bytes_1_3,
+    verify_u64_1_3,
+}
+
+// sum_string_2_4 will hash the given message with the key and return
+// the computed hash as a u64
+sum_string_2_4 :: proc(msg, key: string) -> u64 {
+    return sum_bytes_2_4(transmute([]byte)(msg), transmute([]byte)(key))
+}
+
+// sum_bytes_2_4 will hash the given message with the key and return
+// the computed hash as a u64
+sum_bytes_2_4 :: proc (msg, key: []byte) -> u64 {
+    ctx: Context
+    hash: u64
+    init(&ctx, key, 2, 4)
+    update(&ctx, msg)
+    final(&ctx, &hash)
+    return hash
+}
+
+// sum_string_to_buffer_2_4 will hash the given message with the key and write
+// the computed hash into the provided destination buffer
+sum_string_to_buffer_2_4 :: proc(msg, key: string, dst: []byte) {
+    sum_bytes_to_buffer_2_4(transmute([]byte)(msg), transmute([]byte)(key), dst)
+}
+
+// sum_bytes_to_buffer_2_4 will hash the given message with the key and write
+// the computed hash into the provided destination buffer
+sum_bytes_to_buffer_2_4 :: proc(msg, key, dst: []byte) {
+    assert(len(dst) >= DIGEST_SIZE, "crypto/siphash: Destination buffer needs to be at least of size 8")
+    hash  := sum_bytes_2_4(msg, key)
+    _collect_output(dst[:], hash)
+}
+
+sum_2_4 :: proc {
+    sum_string_2_4,
+    sum_bytes_2_4,
+    sum_string_to_buffer_2_4,
+    sum_bytes_to_buffer_2_4,
+}
+
+sum_string           :: sum_string_2_4
+sum_bytes            :: sum_bytes_2_4
+sum_string_to_buffer :: sum_string_to_buffer_2_4
+sum_bytes_to_buffer  :: sum_bytes_to_buffer_2_4
+sum :: proc {
+    sum_string,
+    sum_bytes,
+    sum_string_to_buffer,
+    sum_bytes_to_buffer,
+}
+
+// verify_u64_2_4 will check if the supplied tag matches with the output you 
+// will get from the provided message and key
+verify_u64_2_4 :: proc (tag: u64 msg, key: []byte) -> bool {
+    return sum_bytes_2_4(msg, key) == tag
+}
+
+// verify_bytes will check if the supplied tag matches with the output you 
+// will get from the provided message and key
+verify_bytes_2_4 :: proc (tag, msg, key: []byte) -> bool {
+    derived_tag: [8]byte
+    sum_bytes_to_buffer_2_4(msg, key, derived_tag[:])
+    return crypto.compare_constant_time(derived_tag[:], tag) == 1
+}
+
+verify_2_4 :: proc {
+    verify_bytes_2_4,
+    verify_u64_2_4,
+}
+
+verify_bytes :: verify_bytes_2_4
+verify_u64   :: verify_u64_2_4
+verify :: proc {
+    verify_bytes,
+    verify_u64,
+}
+
+// sum_string_4_8 will hash the given message with the key and return
+// the computed hash as a u64
+sum_string_4_8 :: proc(msg, key: string) -> u64 {
+    return sum_bytes_4_8(transmute([]byte)(msg), transmute([]byte)(key))
+}
+
+// sum_bytes_4_8 will hash the given message with the key and return
+// the computed hash as a u64
+sum_bytes_4_8 :: proc (msg, key: []byte) -> u64 {
+    ctx: Context
+    hash: u64
+    init(&ctx, key, 4, 8)
+    update(&ctx, msg)
+    final(&ctx, &hash)
+    return hash
+}
+
+// sum_string_to_buffer_4_8 will hash the given message with the key and write
+// the computed hash into the provided destination buffer
+sum_string_to_buffer_4_8 :: proc(msg, key: string, dst: []byte) {
+    sum_bytes_to_buffer_4_8(transmute([]byte)(msg), transmute([]byte)(key), dst)
+}
+
+// sum_bytes_to_buffer_4_8 will hash the given message with the key and write
+// the computed hash into the provided destination buffer
+sum_bytes_to_buffer_4_8 :: proc(msg, key, dst: []byte) {
+    assert(len(dst) >= DIGEST_SIZE, "crypto/siphash: Destination buffer needs to be at least of size 8")
+    hash  := sum_bytes_4_8(msg, key)
+    _collect_output(dst[:], hash)
+}
+
+sum_4_8 :: proc {
+    sum_string_4_8,
+    sum_bytes_4_8,
+    sum_string_to_buffer_4_8,
+    sum_bytes_to_buffer_4_8,
+}
+
+// verify_u64_4_8 will check if the supplied tag matches with the output you 
+// will get from the provided message and key
+verify_u64_4_8 :: proc (tag: u64 msg, key: []byte) -> bool {
+    return sum_bytes_4_8(msg, key) == tag
+}
+
+// verify_bytes will check if the supplied tag matches with the output you 
+// will get from the provided message and key
+verify_bytes_4_8 :: proc (tag, msg, key: []byte) -> bool {
+    derived_tag: [8]byte
+    sum_bytes_to_buffer_4_8(msg, key, derived_tag[:])
+    return crypto.compare_constant_time(derived_tag[:], tag) == 1
+}
+
+verify_4_8 :: proc {
+    verify_bytes_4_8,
+    verify_u64_4_8,
+}
+
+/*
+    Low level API
+*/
+
+init :: proc(ctx: ^Context, key: []byte, c_rounds, d_rounds: int) {
+    assert(len(key) == KEY_SIZE, "crypto/siphash: Invalid key size, want 16")
+    ctx.c_rounds = c_rounds
+    ctx.d_rounds = d_rounds
+    is_valid_setting := (ctx.c_rounds == 1 && ctx.d_rounds == 3) ||
+                        (ctx.c_rounds == 2 && ctx.d_rounds == 4) ||
+                        (ctx.c_rounds == 4 && ctx.d_rounds == 8)
+    assert(is_valid_setting, "crypto/siphash: Incorrect rounds set up. Valid pairs are (1,3), (2,4) and (4,8)")
+    ctx.k0 = util.U64_LE(key[:8])
+    ctx.k1 = util.U64_LE(key[8:])
+    ctx.v0 = 0x736f6d6570736575 ~ ctx.k0
+    ctx.v1 = 0x646f72616e646f6d ~ ctx.k1
+    ctx.v2 = 0x6c7967656e657261 ~ ctx.k0
+    ctx.v3 = 0x7465646279746573 ~ ctx.k1
+    ctx.is_initialized = true
+}
+
+update :: proc(ctx: ^Context, data: []byte) {
+    assert(ctx.is_initialized, "crypto/siphash: Context is not initalized")
+    ctx.last_block = len(data) / 8 * 8
+    ctx.buf = data
+    i := 0
+    m: u64
+    for i < ctx.last_block {
+        m = u64(ctx.buf[i] & 0xff)
+        i += 1
+
+        for r in u64(1)..<8 {
+            m |= u64(ctx.buf[i] & 0xff) << (r * 8)
+            i += 1
+        }
+
+        ctx.v3 ~= m
+        for _ in 0..<ctx.c_rounds {
+            _compress(ctx)
+        }
+
+        ctx.v0 ~= m
+    }
+}
+
+final :: proc(ctx: ^Context, dst: ^u64) {
+    m: u64
+    for i := len(ctx.buf) - 1; i >= ctx.last_block; i -= 1 {
+        m <<= 8
+        m |= u64(ctx.buf[i] & 0xff)
+    }
+    m |= u64(len(ctx.buf) << 56)
+
+    ctx.v3 ~= m
+
+    for _ in 0..<ctx.c_rounds {
+        _compress(ctx)
+    }
+
+    ctx.v0 ~= m
+    ctx.v2 ~= 0xff
+
+    for _ in 0..<ctx.d_rounds {
+        _compress(ctx)
+    }
+
+    dst^ = ctx.v0 ~ ctx.v1 ~ ctx.v2 ~ ctx.v3
+
+    reset(ctx)
+}
+
+reset :: proc(ctx: ^Context) {
+    ctx.k0, ctx.k1 = 0, 0
+    ctx.v0, ctx.v1 = 0, 0
+    ctx.v2, ctx.v3 = 0, 0
+    ctx.last_block = 0
+    ctx.c_rounds = 0
+    ctx.d_rounds = 0
+    ctx.is_initialized = false
+}
+
+Context :: struct {
+    v0, v1, v2, v3: u64,    // State values
+    k0, k1:         u64,    // Split key
+    c_rounds:       int,    // Number of message rounds
+    d_rounds:       int,    // Number of finalization rounds
+    buf:            []byte, // Provided data
+    last_block:     int,    // Offset from the last block
+    is_initialized: bool,
+}
+
+_get_byte :: #force_inline proc "contextless" (byte_num: byte, into: u64) -> byte {
+    return byte(into >> (((~byte_num) & (size_of(u64) - 1)) << 3))
+}
+
+_collect_output :: #force_inline proc "contextless" (dst: []byte, hash: u64) {
+    dst[0] = _get_byte(7, hash)
+    dst[1] = _get_byte(6, hash)
+    dst[2] = _get_byte(5, hash)
+    dst[3] = _get_byte(4, hash)
+    dst[4] = _get_byte(3, hash)
+    dst[5] = _get_byte(2, hash)
+    dst[6] = _get_byte(1, hash)
+    dst[7] = _get_byte(0, hash)
+}
+
+_compress :: #force_inline proc "contextless" (ctx: ^Context) {
+    ctx.v0 += ctx.v1
+    ctx.v1  = util.ROTL64(ctx.v1, 13)
+    ctx.v1 ~= ctx.v0
+    ctx.v0  = util.ROTL64(ctx.v0, 32)
+    ctx.v2 += ctx.v3
+    ctx.v3  = util.ROTL64(ctx.v3, 16)
+    ctx.v3 ~= ctx.v2
+    ctx.v0 += ctx.v3
+    ctx.v3  = util.ROTL64(ctx.v3, 21)
+    ctx.v3 ~= ctx.v0
+    ctx.v2 += ctx.v1
+    ctx.v1  = util.ROTL64(ctx.v1, 17)
+    ctx.v1 ~= ctx.v2
+    ctx.v2  = util.ROTL64(ctx.v2, 32)
+}

core/dynlib/lib_unix.odin

@@ -1,4 +1,4 @@
-// +build linux, darwin, freebsd
+// +build linux, darwin, freebsd, openbsd
 package dynlib
 
 import "core:os"

core/encoding/hxa/read.odin

@@ -39,6 +39,9 @@ read :: proc(data: []byte, filename := "<input>", print_error := false, allocato
 	read_value :: proc(r: ^Reader, $T: typeid) -> (value: T, err: Read_Error) {
 		remaining := len(r.data) - r.offset
 		if remaining < size_of(T) {
+			if r.print_error {
+				fmt.eprintf("file '%s' failed to read value at offset %v\n", r.filename, r.offset)
+			}
 			err = .Short_Read
 			return
 		}
@@ -51,6 +54,10 @@ read :: proc(data: []byte, filename := "<input>", print_error := false, allocato
 	read_array :: proc(r: ^Reader, $T: typeid, count: int) -> (value: []T, err: Read_Error) {
 		remaining := len(r.data) - r.offset
 		if remaining < size_of(T)*count {
+			if r.print_error {
+				fmt.eprintf("file '%s' failed to read array of %d elements at offset %v\n",
+							r.filename, count, r.offset)
+			}
 			err = .Short_Read
 			return
 		}
@@ -82,7 +89,8 @@ read :: proc(data: []byte, filename := "<input>", print_error := false, allocato
 			type := read_value(r, Meta_Value_Type) or_return
 			if type > max(Meta_Value_Type) {
 				if r.print_error {
-					fmt.eprintf("HxA Error: file '%s' has meta value type %d. Maximum value is ", r.filename, u8(type), u8(max(Meta_Value_Type)))
+					fmt.eprintf("HxA Error: file '%s' has meta value type %d. Maximum value is %d\n",
+								r.filename, u8(type), u8(max(Meta_Value_Type)))
 				}
 				err = .Invalid_Data
 				return
@@ -114,7 +122,8 @@ read :: proc(data: []byte, filename := "<input>", print_error := false, allocato
 			type := read_value(r, Layer_Data_Type) or_return
 			if type > max(type) {
 				if r.print_error {
-					fmt.eprintf("HxA Error: file '%s' has layer data type %d. Maximum value is ", r.filename, u8(type), u8(max(Layer_Data_Type)))
+					fmt.eprintf("HxA Error: file '%s' has layer data type %d. Maximum value is %d\n",
+								r.filename, u8(type), u8(max(Layer_Data_Type)))
 				}
 				err = .Invalid_Data
 				return
@@ -134,13 +143,23 @@ read :: proc(data: []byte, filename := "<input>", print_error := false, allocato
 	}
 
 	if len(data) < size_of(Header) {
+		if print_error {
+			fmt.eprintf("HxA Error: file '%s' has no header\n", filename)
+		}
+		err = .Short_Read
 		return
 	}
 
 	context.allocator = allocator
 
 	header := cast(^Header)raw_data(data)
-	assert(header.magic_number == MAGIC_NUMBER)
+	if (header.magic_number != MAGIC_NUMBER) {
+		if print_error {
+			fmt.eprintf("HxA Error: file '%s' has invalid magic number 0x%x\n", filename, header.magic_number)
+		}
+		err = .Invalid_Data
+		return
+	}
 
 	r := &Reader{
 		filename    = filename,
@@ -150,6 +169,7 @@ read :: proc(data: []byte, filename := "<input>", print_error := false, allocato
 	}
 
 	node_count := 0
+	file.header = header^
 	file.nodes = make([]Node, header.internal_node_count)
 	defer if err != nil {
 		nodes_destroy(file.nodes)
@@ -162,7 +182,8 @@ read :: proc(data: []byte, filename := "<input>", print_error := false, allocato
 		type := read_value(r, Node_Type) or_return
 		if type > max(Node_Type) {
 			if r.print_error {
-				fmt.eprintf("HxA Error: file '%s' has node type %d. Maximum value is ", r.filename, u8(type), u8(max(Node_Type)))
+				fmt.eprintf("HxA Error: file '%s' has node type %d. Maximum value is %d\n",
+							r.filename, u8(type), u8(max(Node_Type)))
 			}
 			err = .Invalid_Data
 			return

core/encoding/hxa/write.odin

@@ -84,7 +84,7 @@ write_internal :: proc(w: ^Writer, file: File) {
 
 	write_metadata :: proc(w: ^Writer, meta_data: []Meta) {
 		for m in meta_data {
-			name_len := max(len(m.name), 255)
+			name_len := min(len(m.name), 255)
 			write_value(w, u8(name_len))
 			write_string(w, m.name[:name_len])
 
@@ -127,7 +127,7 @@ write_internal :: proc(w: ^Writer, file: File) {
 	write_layer_stack :: proc(w: ^Writer, layers: Layer_Stack) {
 		write_value(w, u32(len(layers)))
 		for layer in layers {
-			name_len := max(len(layer.name), 255)
+			name_len := min(len(layer.name), 255)
 			write_value(w, u8(name_len))
 			write_string(w, layer .name[:name_len])
 
@@ -152,7 +152,7 @@ write_internal :: proc(w: ^Writer, file: File) {
 		return
 	}
 
-	write_value(w, &Header{
+	write_value(w, Header{
 		magic_number = MAGIC_NUMBER,
 		version = LATEST_VERSION,
 		internal_node_count = u32le(len(file.nodes)),

core/encoding/json/marshal.odin

@@ -8,17 +8,18 @@ import "core:strings"
 import "core:io"
 
 Marshal_Data_Error :: enum {
+	None,
 	Unsupported_Type,
 }
 
-Marshal_Error :: union {
+Marshal_Error :: union #shared_nil {
 	Marshal_Data_Error,
 	io.Error,
 }
 
 marshal :: proc(v: any, allocator := context.allocator) -> (data: []byte, err: Marshal_Error) {
 	b := strings.make_builder(allocator)
-	defer if err != .None {
+	defer if err != nil {
 		strings.destroy_builder(&b)
 	}
 
@@ -27,7 +28,7 @@ marshal :: proc(v: any, allocator := context.allocator) -> (data: []byte, err: M
 	if len(b.buf) != 0 {
 		data = b.buf[:]
 	}
-	return data, .None
+	return data, nil
 }
 
 marshal_to_builder :: proc(b: ^strings.Builder, v: any) -> Marshal_Error {

core/encoding/varint/doc.odin

@@ -0,0 +1,27 @@
+/*
+	Implementation of the LEB128 variable integer encoding as used by DWARF encoding and DEX files, among others.
+
+	Author of this Odin package: Jeroen van Rijn
+
+	Example:
+		```odin
+		import "core:encoding/varint"
+		import "core:fmt"
+
+		main :: proc() {
+			buf: [varint.LEB128_MAX_BYTES]u8
+
+			value := u128(42)
+
+			encode_size, encode_err := varint.encode_uleb128(buf[:], value)
+			assert(encode_size == 1 && encode_err == .None)
+
+			fmt.println(buf[:encode_size])
+
+			decoded_val, decode_size, decode_err := varint.decode_uleb128(buf[:encode_size])
+			assert(decoded_val == value && decode_size == encode_size && decode_err == .None)
+		}
+		```
+
+*/
+package varint

core/encoding/varint/leb128.odin

@@ -0,0 +1,139 @@
+/*
+	Copyright 2022 Jeroen van Rijn <nom@duclavier.com>.
+	Made available under Odin's BSD-3 license.
+
+	List of contributors:
+		Jeroen van Rijn: Initial implementation.
+*/
+
+// package varint implements variable length integer encoding and decoding using
+// the LEB128 format as used by DWARF debug info, Android .dex and other file formats.
+package varint
+
+import "core:fmt"
+
+// In theory we should use the bigint package. In practice, varints bigger than this indicate a corrupted file.
+// Instead we'll set limits on the values we'll encode/decode
+// 18 * 7 bits = 126, which means that a possible 19th byte may at most be `0b0000_0011`.
+LEB128_MAX_BYTES    :: 19
+
+Error :: enum {
+	None             = 0,
+	Buffer_Too_Small = 1,
+	Value_Too_Large  = 2,
+}
+
+// Decode a slice of bytes encoding an unsigned LEB128 integer into value and number of bytes used.
+// Returns `size` == 0 for an invalid value, empty slice, or a varint > 18 bytes.
+decode_uleb128 :: proc(buf: []u8) -> (val: u128, size: int, err: Error) {
+	more := true
+
+	for v, i in buf {
+		size = i + 1
+
+		// 18 * 7 bits = 126, which means that a possible 19th byte may at most be 0b0000_0011.
+		if size > LEB128_MAX_BYTES || size == LEB128_MAX_BYTES && v > 0b0000_0011 {
+			return 0, 0, .Value_Too_Large
+		}
+
+		val |= u128(v & 0x7f) << uint(i * 7)
+
+		if v < 128 {
+			more = false
+			break
+		}
+	}
+
+	// If the buffer runs out before the number ends, return an error.
+	if more {
+		return 0, 0, .Buffer_Too_Small
+	}
+	return
+}
+
+// Decode a slice of bytes encoding a signed LEB128 integer into value and number of bytes used.
+// Returns `size` == 0 for an invalid value, empty slice, or a varint > 18 bytes.
+decode_ileb128 :: proc(buf: []u8) -> (val: i128, size: int, err: Error) {
+	shift: uint
+
+	if len(buf) == 0 {
+		return 0, 0, .Buffer_Too_Small
+	}
+
+	for v in buf {
+		size += 1
+
+		// 18 * 7 bits = 126, which including sign means we can have a 19th byte.
+		if size > LEB128_MAX_BYTES || size == LEB128_MAX_BYTES && v > 0x7f {
+			return 0, 0, .Value_Too_Large
+		}
+
+		val |= i128(v & 0x7f) << shift
+		shift += 7
+
+		if v < 128 { break }
+	}
+
+	if buf[size - 1] & 0x40 == 0x40 {
+		val |= max(i128) << shift
+	}
+	return
+}
+
+// Encode `val` into `buf` as an unsigned LEB128 encoded series of bytes.
+// `buf` must be appropriately sized.
+encode_uleb128 :: proc(buf: []u8, val: u128) -> (size: int, err: Error) {
+	val := val
+
+	for {
+		size += 1
+
+		if size > len(buf) {
+			fmt.println(val, buf[:size - 1])
+			return 0, .Buffer_Too_Small
+		}
+
+		low := val & 0x7f
+		val >>= 7
+
+		if val > 0 {
+			low |= 0x80 // more bytes to follow
+		}
+		buf[size - 1] = u8(low)
+
+		if val == 0 { break }
+	}
+	return
+}
+
+@(private)
+SIGN_MASK :: (i128(1) << 121) // sign extend mask
+
+// Encode `val` into `buf` as a signed LEB128 encoded series of bytes.
+// `buf` must be appropriately sized.
+encode_ileb128 :: proc(buf: []u8, val: i128) -> (size: int, err: Error) {
+	val      := val
+	more     := true
+
+	for more {
+		size += 1
+
+		if size > len(buf) {
+			return 0, .Buffer_Too_Small
+		}
+
+		low := val & 0x7f
+		val >>= 7
+
+		low = (low ~ SIGN_MASK) - SIGN_MASK
+
+		if (val == 0 && low & 0x40 != 0x40) || (val == -1 && low & 0x40 == 0x40) {
+			more = false
+		} else {
+			low |= 0x80
+		}
+
+		buf[size - 1] = u8(low)
+	}
+	return
+}

core/hash/hash.odin

@@ -151,7 +151,7 @@ murmur32 :: proc(data: []byte, seed := u32(0)) -> u32 {
 		k1 ~= u32(tail[2]) << 16
 		fallthrough
 	case 2:
-		k1 ~= u32(tail[2]) << 8
+		k1 ~= u32(tail[1]) << 8
 		fallthrough
 	case 1:
 		k1 ~= u32(tail[0])

core/image/common.odin

@@ -118,7 +118,7 @@ Option :: enum {
 }
 Options :: distinct bit_set[Option]
 
-Error :: union {
+Error :: union #shared_nil {
 	General_Image_Error,
 	PNG_Error,
 
@@ -137,6 +137,7 @@ General_Image_Error :: enum {
 }
 
 PNG_Error :: enum {
+	None = 0,
 	Invalid_PNG_Signature,
 	IHDR_Not_First_Chunk,
 	IHDR_Corrupt,

core/image/png/example.odin

@@ -207,7 +207,7 @@ write_image_as_ppm :: proc(filename: string, image: ^image.Image) -> (success: b
 	}
 
 	mode: int = 0
-	when ODIN_OS == "linux" || ODIN_OS == "darwin" {
+	when ODIN_OS == .Linux || ODIN_OS == .Darwin {
 		// NOTE(justasd): 644 (owner read, write; group read; others read)
 		mode = S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH
 	}

core/image/png/helpers.odin

@@ -439,18 +439,18 @@ when false {
 		flags: int = O_WRONLY|O_CREATE|O_TRUNC
 
 		if len(image.pixels) == 0 || len(image.pixels) < image.width * image.height * int(image.channels) {
-			return E_PNG.Invalid_Image_Dimensions
+			return .Invalid_Image_Dimensions
 		}
 
 		mode: int = 0
-		when ODIN_OS == "linux" || ODIN_OS == "darwin" {
+		when ODIN_OS == .Linux || ODIN_OS == .Darwin {
 			// NOTE(justasd): 644 (owner read, write; group read; others read)
 			mode = S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH
 		}
 
 		fd, fderr := open(filename, flags, mode)
 		if fderr != 0 {
-			return E_General.Cannot_Open_File
+			return .Cannot_Open_File
 		}
 		defer close(fd)
 
@@ -473,7 +473,7 @@ when false {
 		case 3: ihdr.color_type = Color_Type{.Color}
 		case 4: ihdr.color_type = Color_Type{.Color, .Alpha}
 		case:// Unhandled
-			return E_PNG.Unknown_Color_Type
+			return .Unknown_Color_Type
 		}
 		h := make_chunk(ihdr, .IHDR)
 		write_chunk(fd, h)

core/intrinsics/intrinsics.odin

@@ -41,6 +41,8 @@ mem_copy_non_overlapping :: proc(dst, src: rawptr, len: int) ---
 mem_zero                 :: proc(ptr: rawptr, len: int) ---
 mem_zero_volatile        :: proc(ptr: rawptr, len: int) ---
 
+unaligned_load           :: proc(src: ^$T) -> T ---
+unaligned_store          :: proc(dst: ^$T, val: T) -> T ---
 
 fixed_point_mul     :: proc(lhs, rhs: $T, #const scale: uint) -> T where type_is_integer(T) ---
 fixed_point_div     :: proc(lhs, rhs: $T, #const scale: uint) -> T where type_is_integer(T) ---
@@ -60,77 +62,46 @@ syscall :: proc(id: uintptr, args: ..uintptr) -> uintptr ---
 
 
 // Atomics
-atomic_fence        :: proc() ---
-atomic_fence_acq    :: proc() ---
-atomic_fence_rel    :: proc() ---
-atomic_fence_acqrel :: proc() ---
+Atomic_Memory_Order :: enum {
+	Relaxed = 0, // Unordered
+	Consume = 1, // Monotonic
+	Acquire = 2,
+	Release = 3,
+	Acq_Rel = 4,
+	Seq_Cst = 5,
+}
 
-atomic_store           :: proc(dst: ^$T, val: T) ---
-atomic_store_rel       :: proc(dst: ^$T, val: T) ---
-atomic_store_relaxed   :: proc(dst: ^$T, val: T) ---
-atomic_store_unordered :: proc(dst: ^$T, val: T) ---
+atomic_type_is_lock_free :: proc($T: typeid) -> bool ---
+
+atomic_thread_fence :: proc(order: Atomic_Memory_Order) ---
+atomic_signal_fence :: proc(order: Atomic_Memory_Order) ---
+
+atomic_store          :: proc(dst: ^$T, val: T) ---
+atomic_store_explicit :: proc(dst: ^$T, val: T, order: Atomic_Memory_Order) ---
 
 atomic_load           :: proc(dst: ^$T) -> T ---
-atomic_load_acq       :: proc(dst: ^$T) -> T ---
-atomic_load_relaxed   :: proc(dst: ^$T) -> T ---
-atomic_load_unordered :: proc(dst: ^$T) -> T ---
+atomic_load_explicit  :: proc(dst: ^$T, order: Atomic_Memory_Order) -> T ---
 
-atomic_add          :: proc(dst; ^$T, val: T) -> T ---
-atomic_add_acq      :: proc(dst; ^$T, val: T) -> T ---
-atomic_add_rel      :: proc(dst; ^$T, val: T) -> T ---
-atomic_add_acqrel   :: proc(dst; ^$T, val: T) -> T ---
-atomic_add_relaxed  :: proc(dst; ^$T, val: T) -> T ---
-atomic_sub          :: proc(dst; ^$T, val: T) -> T ---
-atomic_sub_acq      :: proc(dst; ^$T, val: T) -> T ---
-atomic_sub_rel      :: proc(dst; ^$T, val: T) -> T ---
-atomic_sub_acqrel   :: proc(dst; ^$T, val: T) -> T ---
-atomic_sub_relaxed  :: proc(dst; ^$T, val: T) -> T ---
-atomic_and          :: proc(dst; ^$T, val: T) -> T ---
-atomic_and_acq      :: proc(dst; ^$T, val: T) -> T ---
-atomic_and_rel      :: proc(dst; ^$T, val: T) -> T ---
-atomic_and_acqrel   :: proc(dst; ^$T, val: T) -> T ---
-atomic_and_relaxed  :: proc(dst; ^$T, val: T) -> T ---
-atomic_nand         :: proc(dst; ^$T, val: T) -> T ---
-atomic_nand_acq     :: proc(dst; ^$T, val: T) -> T ---
-atomic_nand_rel     :: proc(dst; ^$T, val: T) -> T ---
-atomic_nand_acqrel  :: proc(dst; ^$T, val: T) -> T ---
-atomic_nand_relaxed :: proc(dst; ^$T, val: T) -> T ---
-atomic_or           :: proc(dst; ^$T, val: T) -> T ---
-atomic_or_acq       :: proc(dst; ^$T, val: T) -> T ---
-atomic_or_rel       :: proc(dst; ^$T, val: T) -> T ---
-atomic_or_acqrel    :: proc(dst; ^$T, val: T) -> T ---
-atomic_or_relaxed   :: proc(dst; ^$T, val: T) -> T ---
-atomic_xor          :: proc(dst; ^$T, val: T) -> T ---
-atomic_xor_acq      :: proc(dst; ^$T, val: T) -> T ---
-atomic_xor_rel      :: proc(dst; ^$T, val: T) -> T ---
-atomic_xor_acqrel   :: proc(dst; ^$T, val: T) -> T ---
-atomic_xor_relaxed  :: proc(dst; ^$T, val: T) -> T ---
+atomic_add               :: proc(dst; ^$T, val: T) -> T ---
+atomic_add_explicit      :: proc(dst; ^$T, val: T, order: Atomic_Memory_Order) -> T ---
+atomic_sub               :: proc(dst; ^$T, val: T) -> T ---
+atomic_sub_explicit      :: proc(dst; ^$T, val: T, order: Atomic_Memory_Order) -> T ---
+atomic_and               :: proc(dst; ^$T, val: T) -> T ---
+atomic_and_explicit      :: proc(dst; ^$T, val: T, order: Atomic_Memory_Order) -> T ---
+atomic_nand              :: proc(dst; ^$T, val: T) -> T ---
+atomic_nand_explicit     :: proc(dst; ^$T, val: T, order: Atomic_Memory_Order) -> T ---
+atomic_or                :: proc(dst; ^$T, val: T) -> T ---
+atomic_or_explicit       :: proc(dst; ^$T, val: T, order: Atomic_Memory_Order) -> T ---
+atomic_xor               :: proc(dst; ^$T, val: T) -> T ---
+atomic_xor_explicit      :: proc(dst; ^$T, val: T, order: Atomic_Memory_Order) -> T ---
+atomic_exchange          :: proc(dst; ^$T, val: T) -> T ---
+atomic_exchange_explicit :: proc(dst; ^$T, val: T, order: Atomic_Memory_Order) -> T ---
 
-atomic_xchg         :: proc(dst; ^$T, val: T) -> T ---
-atomic_xchg_acq     :: proc(dst; ^$T, val: T) -> T ---
-atomic_xchg_rel     :: proc(dst; ^$T, val: T) -> T ---
-atomic_xchg_acqrel  :: proc(dst; ^$T, val: T) -> T ---
-atomic_xchg_relaxed :: proc(dst; ^$T, val: T) -> T ---
+atomic_compare_exchange_strong          :: proc(dst: ^$T, old, new: T) -> (T, bool) #optional_ok ---
+atomic_compare_exchange_strong_explicit :: proc(dst: ^$T, old, new: T, success, failure: Atomic_Memory_Order) -> (T, bool) #optional_ok ---
+atomic_compare_exchange_weak            :: proc(dst: ^$T, old, new: T) -> (T, bool) #optional_ok ---
+atomic_compare_exchange_weak_explicit   :: proc(dst: ^$T, old, new: T, success, failure: Atomic_Memory_Order) -> (T, bool) #optional_ok ---
 
-atomic_cxchg                    :: proc(dst: ^$T, old, new: T) -> (T, bool) #optional_ok ---
-atomic_cxchg_acq                :: proc(dst: ^$T, old, new: T) -> (T, bool) #optional_ok ---
-atomic_cxchg_rel                :: proc(dst: ^$T, old, new: T) -> (T, bool) #optional_ok ---
-atomic_cxchg_acqrel             :: proc(dst: ^$T, old, new: T) -> (T, bool) #optional_ok ---
-atomic_cxchg_relaxed            :: proc(dst: ^$T, old, new: T) -> (T, bool) #optional_ok ---
-atomic_cxchg_failrelaxed        :: proc(dst: ^$T, old, new: T) -> (T, bool) #optional_ok ---
-atomic_cxchg_failacq            :: proc(dst: ^$T, old, new: T) -> (T, bool) #optional_ok ---
-atomic_cxchg_acq_failrelaxed    :: proc(dst: ^$T, old, new: T) -> (T, bool) #optional_ok ---
-atomic_cxchg_acqrel_failrelaxed :: proc(dst: ^$T, old, new: T) -> (T, bool) #optional_ok ---
-
-atomic_cxchgweak                    :: proc(dst: ^$T, old, new: T) -> (T, bool) #optional_ok ---
-atomic_cxchgweak_acq                :: proc(dst: ^$T, old, new: T) -> (T, bool) #optional_ok ---
-atomic_cxchgweak_rel                :: proc(dst: ^$T, old, new: T) -> (T, bool) #optional_ok ---
-atomic_cxchgweak_acqrel             :: proc(dst: ^$T, old, new: T) -> (T, bool) #optional_ok ---
-atomic_cxchgweak_relaxed            :: proc(dst: ^$T, old, new: T) -> (T, bool) #optional_ok ---
-atomic_cxchgweak_failrelaxed        :: proc(dst: ^$T, old, new: T) -> (T, bool) #optional_ok ---
-atomic_cxchgweak_failacq            :: proc(dst: ^$T, old, new: T) -> (T, bool) #optional_ok ---
-atomic_cxchgweak_acq_failrelaxed    :: proc(dst: ^$T, old, new: T) -> (T, bool) #optional_ok ---
-atomic_cxchgweak_acqrel_failrelaxed :: proc(dst: ^$T, old, new: T) -> (T, bool) #optional_ok ---
 
 // Constant type tests
 
@@ -199,6 +170,10 @@ type_equal_proc  :: proc($T: typeid) -> (equal:  proc "contextless" (rawptr, raw
 type_hasher_proc :: proc($T: typeid) -> (hasher: proc "contextless" (data: rawptr, seed: uintptr) -> uintptr) where type_is_comparable(T) ---
 
 
+// WASM targets only
+wasm_memory_grow :: proc(index, delta: uintptr) -> int ---
+wasm_memory_size :: proc(index: uintptr)        -> int ---
+
 // Internal compiler use only
 
 __entry_point :: proc() ---

core/math/big/common.odin

@@ -172,7 +172,7 @@ Error :: enum int {
 	Unimplemented           = 127,
 }
 
-Error_String :: #partial [Error]string{
+Error_String :: #sparse[Error]string{
 	.Okay                    = "Okay",
 	.Out_Of_Memory           = "Out of memory",
 	.Invalid_Pointer         = "Invalid pointer",
@@ -182,6 +182,7 @@ Error_String :: #partial [Error]string{
 	.Max_Iterations_Reached  = "Max iterations reached",
 	.Buffer_Overflow         = "Buffer overflow",
 	.Integer_Overflow        = "Integer overflow",
+	.Integer_Underflow       = "Integer underflow",
 
 	.Division_by_Zero        = "Division by zero",
 	.Math_Domain_Error       = "Math domain error",

core/math/ease/ease.odin

@@ -0,0 +1,483 @@
+// easing procedures and flux easing used for animations
+package ease
+
+import "core:math"
+import "core:intrinsics"
+import "core:time"
+
+@(private) PI_2 :: math.PI / 2
+
+// converted to odin from https://github.com/warrenm/AHEasing
+// with additional enum based call
+
+// Modeled after the parabola y = x^2
+quadratic_in :: proc "contextless" (p: $T) -> T where intrinsics.type_is_float(T) {
+	return p * p
+}
+
+// Modeled after the parabola y = -x^2 + 2x
+quadratic_out :: proc "contextless" (p: $T) -> T where intrinsics.type_is_float(T) {
+	return -(p * (p - 2))
+}
+
+// Modeled after the piecewise quadratic
+// y = (1/2)((2x)^2)             ; [0, 0.5)
+// y = -(1/2)((2x-1)*(2x-3) - 1) ; [0.5, 1]
+quadratic_in_out :: proc "contextless" (p: $T) -> T where intrinsics.type_is_float(T) {
+	if p < 0.5 {
+		return 2 * p * p
+	}	else {
+		return (-2 * p * p) + (4 * p) - 1
+	}
+}
+
+// Modeled after the cubic y = x^3
+cubic_in :: proc "contextless" (p: $T) -> T where intrinsics.type_is_float(T) {
+	return p * p * p
+}
+
+// Modeled after the cubic y = (x - 1)^3 + 1
+cubic_out :: proc "contextless" (p: $T) -> T where intrinsics.type_is_float(T) {
+	f := p - 1
+	return f * f * f + 1
+}
+
+// Modeled after the piecewise cubic
+// y = (1/2)((2x)^3)       ; [0, 0.5)
+// y = (1/2)((2x-2)^3 + 2) ; [0.5, 1]
+cubic_in_out :: proc "contextless" (p: $T) -> T where intrinsics.type_is_float(T) {
+	if p < 0.5 {
+		return 4 * p * p * p
+	} else {
+		f := (2 * p) - 2
+		return 0.5 * f * f * f + 1
+	}
+}
+
+// Modeled after the quartic x^4
+quartic_in :: proc "contextless" (p: $T) -> T where intrinsics.type_is_float(T) {
+	return p * p * p * p
+}
+
+// Modeled after the quartic y = 1 - (x - 1)^4
+quartic_out :: proc "contextless" (p: $T) -> T where intrinsics.type_is_float(T) {
+	f := p - 1
+	return f * f * f * (1 - p) + 1
+}
+
+// Modeled after the piecewise quartic
+// y = (1/2)((2x)^4)        ; [0, 0.5)
+// y = -(1/2)((2x-2)^4 - 2) ; [0.5, 1]
+quartic_in_out :: proc "contextless" (p: $T) -> T where intrinsics.type_is_float(T) {
+	if p < 0.5 {
+		return 8 * p * p * p * p
+	}	else {
+		f := p - 1
+		return -8 * f * f * f * f + 1
+	}
+}
+
+// Modeled after the quintic y = x^5
+quintic_in :: proc "contextless" (p: $T) -> T where intrinsics.type_is_float(T) {
+	return p * p * p * p * p
+}
+
+// Modeled after the quintic y = (x - 1)^5 + 1
+quintic_out :: proc "contextless" (p: $T) -> T where intrinsics.type_is_float(T) {
+	f := p - 1
+	return f * f * f * f * f + 1
+}
+
+// Modeled after the piecewise quintic
+// y = (1/2)((2x)^5)       ; [0, 0.5)
+// y = (1/2)((2x-2)^5 + 2) ; [0.5, 1]
+quintic_in_out :: proc "contextless" (p: $T) -> T where intrinsics.type_is_float(T) {
+	if p < 0.5 {
+		return 16 * p * p * p * p * p
+	}	else {
+		f := (2 * p) - 2
+		return  0.5 * f * f * f * f * f + 1
+	}
+}
+
+// Modeled after quarter-cycle of sine wave
+sine_in :: proc "contextless" (p: $T) -> T where intrinsics.type_is_float(T) {
+	return math.sin((p - 1) * PI_2) + 1
+}
+
+// Modeled after quarter-cycle of sine wave (different phase)
+sine_out :: proc "contextless" (p: $T) -> T where intrinsics.type_is_float(T) {
+	return math.sin(p * PI_2)
+}
+
+// Modeled after half sine wave
+sine_in_out :: proc "contextless" (p: $T) -> T where intrinsics.type_is_float(T) {
+	return 0.5 * (1 - math.cos(p * math.PI))
+}
+
+// Modeled after shifted quadrant IV of unit circle
+circular_in :: proc "contextless" (p: $T) -> T where intrinsics.type_is_float(T) {
+	return 1 - math.sqrt(1 - (p * p))
+}
+
+// Modeled after shifted quadrant II of unit circle
+circular_out :: proc "contextless" (p: $T) -> T where intrinsics.type_is_float(T) {
+	return math.sqrt((2 - p) * p)
+}
+
+// Modeled after the piecewise circular function
+// y = (1/2)(1 - sqrt(1 - 4x^2))           ; [0, 0.5)
+// y = (1/2)(sqrt(-(2x - 3)*(2x - 1)) + 1) ; [0.5, 1]
+circular_in_out :: proc "contextless" (p: $T) -> T where intrinsics.type_is_float(T) {
+	if p < 0.5 {
+		return 0.5 * (1 - math.sqrt(1 - 4 * (p * p)))
+	}	else {
+		return 0.5 * (math.sqrt(-((2 * p) - 3) * ((2 * p) - 1)) + 1)
+	}
+}
+
+// Modeled after the exponential function y = 2^(10(x - 1))
+exponential_in :: proc "contextless" (p: $T) -> T where intrinsics.type_is_float(T) {
+	return p == 0.0 ? p : math.pow(2, 10 * (p - 1))
+}
+
+// Modeled after the exponential function y = -2^(-10x) + 1
+exponential_out :: proc "contextless" (p: $T) -> T where intrinsics.type_is_float(T) {
+	return p == 1.0 ? p : 1 - math.pow(2, -10 * p)
+}
+
+// Modeled after the piecewise exponential
+// y = (1/2)2^(10(2x - 1))         ; [0,0.5)
+// y = -(1/2)*2^(-10(2x - 1))) + 1 ; [0.5,1]
+exponential_in_out :: proc "contextless" (p: $T) -> T where intrinsics.type_is_float(T) {
+	if p == 0.0 || p == 1.0 {
+		return p
+	}
+	
+	if p < 0.5 {
+		return 0.5 * math.pow(2, (20 * p) - 10)
+	} else {
+		return -0.5 * math.pow(2, (-20 * p) + 10) + 1
+	}
+}
+
+// Modeled after the damped sine wave y = sin(13pi/2*x)*pow(2, 10 * (x - 1))
+elastic_in :: proc "contextless" (p: $T) -> T where intrinsics.type_is_float(T) {
+	return math.sin(13 * PI_2 * p) * math.pow(2, 10 * (p - 1))
+}
+
+// Modeled after the damped sine wave y = sin(-13pi/2*(x + 1))*pow(2, -10x) + 1
+elastic_out :: proc "contextless" (p: $T) -> T where intrinsics.type_is_float(T) {
+	return math.sin(-13 * PI_2 * (p + 1)) * math.pow(2, -10 * p) + 1
+}
+
+// Modeled after the piecewise exponentially-damped sine wave:
+// y = (1/2)*sin(13pi/2*(2*x))*pow(2, 10 * ((2*x) - 1))      ; [0,0.5)
+// y = (1/2)*(sin(-13pi/2*((2x-1)+1))*pow(2,-10(2*x-1)) + 2) ; [0.5, 1]
+elastic_in_out :: proc "contextless" (p: $T) -> T where intrinsics.type_is_float(T) {
+	if p < 0.5 {
+		return 0.5 * math.sin(13 * PI_2 * (2 * p)) * math.pow(2, 10 * ((2 * p) - 1))
+	} else {
+		return 0.5 * (math.sin(-13 * PI_2 * ((2 * p - 1) + 1)) * math.pow(2, -10 * (2 * p - 1)) + 2)
+	}
+}
+
+// Modeled after the overshooting cubic y = x^3-x*sin(x*pi)
+back_in :: proc "contextless" (p: $T) -> T where intrinsics.type_is_float(T) {
+	return p * p * p - p * math.sin(p * math.PI)
+}
+
+// Modeled after overshooting cubic y = 1-((1-x)^3-(1-x)*sin((1-x)*pi))
+back_out :: proc "contextless" (p: $T) -> T where intrinsics.type_is_float(T) {
+	f := 1 - p
+	return 1 - (f * f * f - f * math.sin(f * math.PI))
+}
+
+// Modeled after the piecewise overshooting cubic function:
+// y = (1/2)*((2x)^3-(2x)*sin(2*x*pi))           ; [0, 0.5)
+// y = (1/2)*(1-((1-x)^3-(1-x)*sin((1-x)*pi))+1) ; [0.5, 1]
+back_in_out :: proc "contextless" (p: $T) -> T where intrinsics.type_is_float(T) {
+	if p < 0.5 {
+		f := 2 * p
+		return 0.5 * (f * f * f - f * math.sin(f * math.PI))
+	} else {
+		f := (1 - (2*p - 1))
+		return 0.5 * (1 - (f * f * f - f * math.sin(f * math.PI))) + 0.5
+	}
+}
+
+bounce_in :: proc "contextless" (p: $T) -> T where intrinsics.type_is_float(T) {
+	return 1 - bounce_out(1 - p)
+}
+
+bounce_out :: proc "contextless" (p: $T) -> T where intrinsics.type_is_float(T) {
+	if p < 4/11.0 {
+		return (121 * p * p)/16.0
+	}	else if p < 8/11.0 {
+		return (363/40.0 * p * p) - (99/10.0 * p) + 17/5.0
+	}	else if p < 9/10.0 {
+		return (4356/361.0 * p * p) - (35442/1805.0 * p) + 16061/1805.0
+	}	else {
+		return (54/5.0 * p * p) - (513/25.0 * p) + 268/25.0
+	}
+}
+
+bounce_in_out :: proc "contextless" (p: $T) -> T where intrinsics.type_is_float(T) {
+	if p < 0.5 {
+		return 0.5 * bounce_in(p*2)
+	} else {
+		return 0.5 * bounce_out(p * 2 - 1) + 0.5
+	}
+}
+
+// additional enum variant
+
+Ease :: enum {
+	Linear,
+
+	Quadratic_In,
+	Quadratic_Out,
+	Quadratic_In_Out,
+
+	Cubic_In,
+	Cubic_Out,
+	Cubic_In_Out,
+
+	Quartic_In,
+	Quartic_Out,
+	Quartic_In_Out,
+
+	Quintic_In,
+	Quintic_Out,
+	Quintic_In_Out,
+
+	Sine_In,
+	Sine_Out,
+	Sine_In_Out,
+
+	Circular_In,
+	Circular_Out,
+	Circular_In_Out,
+
+	Exponential_In,
+	Exponential_Out,
+	Exponential_In_Out,
+
+	Elastic_In,
+	Elastic_Out,
+	Elastic_In_Out,
+
+	Back_In,
+	Back_Out,
+	Back_In_Out,
+
+	Bounce_In,
+	Bounce_Out,
+	Bounce_In_Out,
+}
+
+ease :: proc "contextless" (type: Ease, p: $T) -> T 
+	where intrinsics.type_is_float(T) {
+	switch type {
+		case .Linear: return p
+		
+		case .Quadratic_In: return quadratic_in(p)
+		case .Quadratic_Out: return quadratic_out(p)
+		case .Quadratic_In_Out: return quadratic_in_out(p)
+
+		case .Cubic_In: return cubic_in(p)
+		case .Cubic_Out: return cubic_out(p)
+		case .Cubic_In_Out: return cubic_in_out(p)
+
+		case .Quartic_In: return quartic_in(p)
+		case .Quartic_Out: return quartic_out(p)
+		case .Quartic_In_Out: return quartic_in_out(p)
+
+		case .Quintic_In: return quintic_in(p)
+		case .Quintic_Out: return quintic_out(p)
+		case .Quintic_In_Out: return quintic_in_out(p)
+
+		case .Sine_In: return sine_in(p)
+		case .Sine_Out: return sine_out(p)
+		case .Sine_In_Out: return sine_in_out(p)
+
+		case .Circular_In: return circular_in(p)
+		case .Circular_Out: return circular_out(p)
+		case .Circular_In_Out: return circular_in_out(p)
+
+		case .Exponential_In: return exponential_in(p)
+		case .Exponential_Out: return exponential_out(p)
+		case .Exponential_In_Out: return exponential_in_out(p)
+
+		case .Elastic_In: return elastic_in(p)
+		case .Elastic_Out: return elastic_out(p)
+		case .Elastic_In_Out: return elastic_in_out(p)
+
+		case .Back_In: return back_in(p)
+		case .Back_Out: return back_out(p)
+		case .Back_In_Out: return back_in_out(p)
+
+		case .Bounce_In: return bounce_in(p)
+		case .Bounce_Out: return bounce_out(p)
+		case .Bounce_In_Out: return bounce_in_out(p)
+	}
+
+	// in case type was invalid
+	return 0
+}
+
+Flux_Map :: struct($T: typeid) {
+	values: map[^T]Flux_Tween(T),
+}
+
+Flux_Tween :: struct($T: typeid) {
+	value: ^T,
+	start: T,
+	diff: T,
+	goal: T,
+
+	delay: f64, // in seconds
+	duration: time.Duration,
+
+	progress: f64,
+	rate: f64,
+	type: Ease,
+
+	inited: bool,
+
+	// callbacks, data can be set, will be pushed to callback
+	data: rawptr, // by default gets set to value input
+	on_start: proc(flux: ^Flux_Map(T), data: rawptr),
+	on_update: proc(flux: ^Flux_Map(T), data: rawptr),
+	on_complete: proc(flux: ^Flux_Map(T), data: rawptr),
+}
+
+// init flux map to a float type and a wanted cap
+flux_init :: proc($T: typeid, cap := 8) -> Flux_Map(T) where intrinsics.type_is_float(T) {
+	return {
+		make(map[^T]Flux_Tween(T), cap),
+	}
+}
+
+// delete map content
+flux_destroy :: proc(flux: Flux_Map($T)) where intrinsics.type_is_float(T) {
+	delete(flux.values)
+}
+
+// clear map content, stops all animations
+flux_clear :: proc(flux: ^Flux_Map($T)) where intrinsics.type_is_float(T) {
+	clear(&flux.values)
+}
+
+// append / overwrite existing tween value to parameters
+// rest is initialized in flux_tween_init, inside update
+// return value can be used to set callbacks
+flux_to :: proc(
+	flux: ^Flux_Map($T),
+	value: ^f32, 
+	goal: f32, 
+	type: Ease = .Quadratic_Out,
+	duration: time.Duration = time.Second, 
+	delay: f64 = 0,
+) -> (tween: ^Flux_Tween(T)) where intrinsics.type_is_float(T) {
+	if res, ok := &flux.values[value]; ok {
+		tween = res
+	} else {
+		flux.values[value] = {}
+		tween = &flux.values[value]
+	}
+
+	tween^ = { 
+		value = value, 
+		goal = goal, 
+		duration = duration,
+		delay = delay,
+		type = type,
+		data = value,
+	}
+
+	return
+}
+
+// init internal properties
+flux_tween_init :: proc(tween: ^Flux_Tween($T), duration: time.Duration) where intrinsics.type_is_float(T) {
+	tween.inited = true
+	tween.start = tween.value^
+	tween.diff = tween.goal - tween.value^
+	s := time.duration_seconds(duration)
+	tween.rate = duration > 0 ? 1.0 / s : 0
+	tween.progress = duration > 0 ? 0 : 1
+}
+
+// update all tweens, wait for their delay if one exists
+// calls callbacks in all stages, when they're filled
+// deletes tween from the map after completion
+flux_update :: proc(flux: ^Flux_Map($T), dt: f64) where intrinsics.type_is_float(T) {
+	for key, tween in &flux.values {
+		delay_remainder := f64(0)
+
+		// Update delay if necessary.
+		if tween.delay > 0 {
+			tween.delay -= dt
+
+			if tween.delay < 0 {
+				// We finished the delay, but in doing so consumed part of this frame's `dt` budget.
+				// Keep track of it so we can apply it to this tween without affecting others.
+				delay_remainder = tween.delay
+				// We're done with this delay.
+				tween.delay = 0
+			}
+		}
+
+		// We either had no delay, or the delay has been consumed.
+		if tween.delay <= 0 {
+			if !tween.inited {
+				flux_tween_init(&tween, tween.duration)
+				
+				if tween.on_start != nil {
+					tween.on_start(flux, tween.data)
+				}
+			} 
+
+			// If part of the `dt` budget was consumed this frame, then `delay_remainder` will be
+			// that remainder, a negative value. Adding it to `dt` applies what's left of the `dt`
+			// to the tween so it advances properly, instead of too much or little.
+			tween.progress += tween.rate * (dt + delay_remainder)
+			x := tween.progress >= 1 ? 1 : ease(tween.type, tween.progress)
+			tween.value^ = tween.start + tween.diff * T(x)
+
+			if tween.on_update != nil {
+				tween.on_update(flux, tween.data)
+			}
+
+			if tween.progress >= 1 {
+				delete_key(&flux.values, key)
+
+				if tween.on_complete != nil {
+					tween.on_complete(flux, tween.data)
+				}
+			}
+		}
+	}
+}
+
+// stop a specific key inside the map
+// returns true when it successfully removed the key
+flux_stop :: proc(flux: ^Flux_Map($T), key: ^T) -> bool where intrinsics.type_is_float(T) {
+    if key in flux.values {
+        delete_key(&flux.values, key)
+        return true
+    }
+
+    return false
+}
+
+// returns the amount of time left for the tween animation, if the key exists in the map
+// returns 0 if the tween doesnt exist on the map
+flux_tween_time_left :: proc(flux: Flux_Map($T), key: ^T) -> f64 {
+	if tween, ok := flux.values[key]; ok {
+		return ((1 - tween.progress) * tween.rate) + tween.delay
+	} else {
+		return 0
+	}
+}

core/math/math.odin

@@ -396,7 +396,7 @@ trunc_f16   :: proc "contextless" (x: f16) -> f16 {
 		e := (x >> shift) & mask - bias
 
 		if e < shift {
-			x &= ~(1 << (shift-e)) - 1
+			x &~= 1 << (shift-e) - 1
 		}
 		return transmute(f16)x
 	}
@@ -428,7 +428,7 @@ trunc_f32   :: proc "contextless" (x: f32) -> f32 {
 		e := (x >> shift) & mask - bias
 
 		if e < shift {
-			x &= ~(1 << (shift-e)) - 1
+			x &~= 1 << (shift-e) - 1
 		}
 		return transmute(f32)x
 	}
@@ -460,7 +460,7 @@ trunc_f64   :: proc "contextless" (x: f64) -> f64 {
 		e := (x >> shift) & mask - bias
 
 		if e < shift {
-			x &= ~(1 << (shift-e)) - 1
+			x &~= 1 << (shift-e) - 1
 		}
 		return transmute(f64)x
 	}
@@ -473,6 +473,7 @@ trunc_f64   :: proc "contextless" (x: f64) -> f64 {
 }
 trunc_f64le :: proc "contextless" (x: f64le) -> f64le { return #force_inline f64le(trunc_f64(f64(x))) }
 trunc_f64be :: proc "contextless" (x: f64be) -> f64be { return #force_inline f64be(trunc_f64(f64(x))) }
+// Removes the fractional part of the value, i.e. rounds towards zero.
 trunc       :: proc{
 	trunc_f16, trunc_f16le, trunc_f16be,
 	trunc_f32, trunc_f32le, trunc_f32be, 
@@ -958,7 +959,7 @@ classify_f16   :: proc "contextless" (x: f16)   -> Float_Class {
 			return .Neg_Zero
 		}
 		return .Zero
-	case x*0.5 == x:
+	case x*0.25 == x:
 		if x < 0 {
 			return .Neg_Inf
 		}
@@ -1027,6 +1028,8 @@ classify_f64   :: proc "contextless" (x: f64)   -> Float_Class {
 }
 classify_f64le :: proc "contextless" (x: f64le) -> Float_Class { return #force_inline classify_f64(f64(x)) }
 classify_f64be :: proc "contextless" (x: f64be) -> Float_Class { return #force_inline classify_f64(f64(x)) }
+// Returns the `Float_Class` of the value, i.e. whether normal, subnormal, zero, negative zero, NaN, infinity or
+// negative infinity.
 classify       :: proc{
 	classify_f16, classify_f16le, classify_f16be,
 	classify_f32, classify_f32le, classify_f32be,
@@ -1203,7 +1206,7 @@ prod :: proc "contextless" (x: $T/[]$E) -> (res: E)
 	return
 }
 
-cumsum_inplace :: proc "contextless" (x: $T/[]$E) -> T
+cumsum_inplace :: proc "contextless" (x: $T/[]$E)
 	where intrinsics.type_is_numeric(E) {
 	for i in 1..<len(x) {
 		x[i] = x[i-1] + x[i]
@@ -1715,4 +1718,22 @@ F32_BIAS  :: 0x7f
 
 F64_MASK  :: 0x7ff
 F64_SHIFT :: 64 - 12
-F64_BIAS  :: 0x3ff
+F64_BIAS  :: 0x3ff
+
+INF_F16     :f16: 0h7C00
+NEG_INF_F16 :f16: 0hFC00
+
+SNAN_F16    :f16: 0h7C01
+QNAN_F16    :f16: 0h7E01
+
+INF_F32     :f32: 0h7F80_0000
+NEG_INF_F32 :f32: 0hFF80_0000
+
+SNAN_F32    :f32: 0hFF80_0001
+QNAN_F32    :f32: 0hFFC0_0001
+
+INF_F64     :f64: 0h7FF0_0000_0000_0000
+NEG_INF_F64 :f64: 0hFFF0_0000_0000_0000
+
+SNAN_F64    :f64: 0h7FF0_0000_0000_0001
+QNAN_F64    :f64: 0h7FF8_0000_0000_0001

core/math/noise/internal.odin

@@ -0,0 +1,734 @@
+/*
+	OpenSimplex2 noise implementation.
+
+	Ported from https://github.com/KdotJPG/OpenSimplex2.
+	Copyright 2022 Yuki2 (https://github.com/NoahR02)
+*/
+//+private
+package math_noise
+
+/*
+	Private implementation details follow.
+*/
+
+PRIME_X                  :: i64(0x5205402B9270C86F)
+PRIME_Y                  :: i64(0x598CD327003817B5)
+PRIME_Z                  :: i64(0x5BCC226E9FA0BACB)
+PRIME_W                  :: i64(0x56CC5227E58F554B)
+
+HASH_MULTIPLIER          :: i64(0x53A3F72DEEC546F5)
+SEED_FLIP_3D             :: i64(-0x52D547B2E96ED629)
+SEED_OFFSET_4D           :: i64(0xE83DC3E0DA7164D)
+
+ROOT_2_OVER_2            :: f64(0.7071067811865476)
+SKEW_2D                  :: f64(0.366025403784439)
+UNSKEW_2D                :: f64(-0.21132486540518713)
+ROOT_3_OVER_3            :: f64(0.577350269189626)
+
+FALLBACK_ROTATE_3D       :: f64(2.0) / f64(3.0)
+ROTATE_3D_ORTHOGONALIZER :: f64(UNSKEW_2D)
+
+SKEW_4D                  :: f32(0hbe0d8369)
+UNSKEW_4D                :: f32(0.309016994374947)
+LATTICE_STEP_4D          :: f32(0.2)
+
+N_GRADS_2D_EXPONENT      :: 7
+N_GRADS_3D_EXPONENT      :: 8
+N_GRADS_4D_EXPONENT      :: 9
+N_GRADS_2D               :: 1 << N_GRADS_2D_EXPONENT
+N_GRADS_3D               :: 1 << N_GRADS_3D_EXPONENT
+N_GRADS_4D               :: 1 << N_GRADS_4D_EXPONENT
+
+NORMALIZER_2D            :: f64(0.01001634121365712)
+NORMALIZER_3D            :: f64(0.07969837668935331)
+NORMALIZER_4D            :: f64(0.0220065933241897)
+RSQUARED_2D              :: f32(0.5)
+RSQUARED_3D              :: f32(0.6)
+RSQUARED_4D              :: f32(0.6)
+
+GRADIENTS_2D := [N_GRADS_2D * 2]f32{
+	0h4218d2da, 0h42b87975, 0h42b87975, 0h4218d2da, 0h42b87975, 0hc218d2da, 0h4218d2da, 0hc2b87975, 
+	0hc218d2da, 0hc2b87975, 0hc2b87975, 0hc218d2da, 0hc2b87975, 0h4218d2da, 0hc218d2da, 0h42b87975, 
+	0h4150804d, 0h42c5f72a, 0h42731b78, 0h429e696c, 0h429e696c, 0h42731b78, 0h42c5f72a, 0h4150804d, 
+	0h42c5f72a, 0hc150804d, 0h429e696c, 0hc2731b78, 0h42731b78, 0hc29e696c, 0h4150804d, 0hc2c5f72a, 
+	0hc150804d, 0hc2c5f72a, 0hc2731b78, 0hc29e696c, 0hc29e696c, 0hc2731b78, 0hc2c5f72a, 0hc150804d, 
+	0hc2c5f72a, 0h4150804d, 0hc29e696c, 0h42731b78, 0hc2731b78, 0h429e696c, 0hc150804d, 0h42c5f72a, 
+	0h4218d2da, 0h42b87975, 0h42b87975, 0h4218d2da, 0h42b87975, 0hc218d2da, 0h4218d2da, 0hc2b87975, 
+	0hc218d2da, 0hc2b87975, 0hc2b87975, 0hc218d2da, 0hc2b87975, 0h4218d2da, 0hc218d2da, 0h42b87975, 
+	0h4150804d, 0h42c5f72a, 0h42731b78, 0h429e696c, 0h429e696c, 0h42731b78, 0h42c5f72a, 0h4150804d, 
+	0h42c5f72a, 0hc150804d, 0h429e696c, 0hc2731b78, 0h42731b78, 0hc29e696c, 0h4150804d, 0hc2c5f72a, 
+	0hc150804d, 0hc2c5f72a, 0hc2731b78, 0hc29e696c, 0hc29e696c, 0hc2731b78, 0hc2c5f72a, 0hc150804d, 
+	0hc2c5f72a, 0h4150804d, 0hc29e696c, 0h42731b78, 0hc2731b78, 0h429e696c, 0hc150804d, 0h42c5f72a, 
+	0h4218d2da, 0h42b87975, 0h42b87975, 0h4218d2da, 0h42b87975, 0hc218d2da, 0h4218d2da, 0hc2b87975, 
+	0hc218d2da, 0hc2b87975, 0hc2b87975, 0hc218d2da, 0hc2b87975, 0h4218d2da, 0hc218d2da, 0h42b87975, 
+	0h4150804d, 0h42c5f72a, 0h42731b78, 0h429e696c, 0h429e696c, 0h42731b78, 0h42c5f72a, 0h4150804d, 
+	0h42c5f72a, 0hc150804d, 0h429e696c, 0hc2731b78, 0h42731b78, 0hc29e696c, 0h4150804d, 0hc2c5f72a, 
+	0hc150804d, 0hc2c5f72a, 0hc2731b78, 0hc29e696c, 0hc29e696c, 0hc2731b78, 0hc2c5f72a, 0hc150804d, 
+	0hc2c5f72a, 0h4150804d, 0hc29e696c, 0h42731b78, 0hc2731b78, 0h429e696c, 0hc150804d, 0h42c5f72a, 
+	0h4218d2da, 0h42b87975, 0h42b87975, 0h4218d2da, 0h42b87975, 0hc218d2da, 0h4218d2da, 0hc2b87975, 
+	0hc218d2da, 0hc2b87975, 0hc2b87975, 0hc218d2da, 0hc2b87975, 0h4218d2da, 0hc218d2da, 0h42b87975, 
+	0h4150804d, 0h42c5f72a, 0h42731b78, 0h429e696c, 0h429e696c, 0h42731b78, 0h42c5f72a, 0h4150804d, 
+	0h42c5f72a, 0hc150804d, 0h429e696c, 0hc2731b78, 0h42731b78, 0hc29e696c, 0h4150804d, 0hc2c5f72a, 
+	0hc150804d, 0hc2c5f72a, 0hc2731b78, 0hc29e696c, 0hc29e696c, 0hc2731b78, 0hc2c5f72a, 0hc150804d, 
+	0hc2c5f72a, 0h4150804d, 0hc29e696c, 0h42731b78, 0hc2731b78, 0h429e696c, 0hc150804d, 0h42c5f72a, 
+	0h4218d2da, 0h42b87975, 0h42b87975, 0h4218d2da, 0h42b87975, 0hc218d2da, 0h4218d2da, 0hc2b87975, 
+	0hc218d2da, 0hc2b87975, 0hc2b87975, 0hc218d2da, 0hc2b87975, 0h4218d2da, 0hc218d2da, 0h42b87975, 
+	0h4150804d, 0h42c5f72a, 0h42731b78, 0h429e696c, 0h429e696c, 0h42731b78, 0h42c5f72a, 0h4150804d, 
+	0h42c5f72a, 0hc150804d, 0h429e696c, 0hc2731b78, 0h42731b78, 0hc29e696c, 0h4150804d, 0hc2c5f72a, 
+	0hc150804d, 0hc2c5f72a, 0hc2731b78, 0hc29e696c, 0hc29e696c, 0hc2731b78, 0hc2c5f72a, 0hc150804d, 
+	0hc2c5f72a, 0h4150804d, 0hc29e696c, 0h42731b78, 0hc2731b78, 0h429e696c, 0hc150804d, 0h42c5f72a, 
+	0h4218d2da, 0h42b87975, 0h42b87975, 0h4218d2da, 0h42b87975, 0hc218d2da, 0h4218d2da, 0hc2b87975, 
+	0hc218d2da, 0hc2b87975, 0hc2b87975, 0hc218d2da, 0hc2b87975, 0h4218d2da, 0hc218d2da, 0h42b87975, 
+}
+
+GRADIENTS_3D := [N_GRADS_3D * 4]f32{
+	0h41df5103, 0h41df5103, 0hc148c1c5, 0h00000000, 0h41df5103, 0h41df5103, 0h4148c1c5, 0h00000000, 
+	0h421ae5b8, 0h416b5146, 0h00000000, 0h00000000, 0h416b5146, 0h421ae5b8, 0h00000000, 0h00000000, 
+	0hc1df5103, 0h41df5103, 0hc148c1c5, 0h00000000, 0hc1df5103, 0h41df5103, 0h4148c1c5, 0h00000000, 
+	0hc16b5146, 0h421ae5b8, 0h00000000, 0h00000000, 0hc21ae5b8, 0h416b5146, 0h00000000, 0h00000000, 
+	0hc148c1c5, 0hc1df5103, 0hc1df5103, 0h00000000, 0h4148c1c5, 0hc1df5103, 0hc1df5103, 0h00000000, 
+	0h00000000, 0hc21ae5b8, 0hc16b5146, 0h00000000, 0h00000000, 0hc16b5146, 0hc21ae5b8, 0h00000000, 
+	0hc148c1c5, 0hc1df5103, 0h41df5103, 0h00000000, 0h4148c1c5, 0hc1df5103, 0h41df5103, 0h00000000, 
+	0h00000000, 0hc16b5146, 0h421ae5b8, 0h00000000, 0h00000000, 0hc21ae5b8, 0h416b5146, 0h00000000, 
+	0hc1df5103, 0hc1df5103, 0hc148c1c5, 0h00000000, 0hc1df5103, 0hc1df5103, 0h4148c1c5, 0h00000000, 
+	0hc21ae5b8, 0hc16b5146, 0h00000000, 0h00000000, 0hc16b5146, 0hc21ae5b8, 0h00000000, 0h00000000, 
+	0hc1df5103, 0hc148c1c5, 0hc1df5103, 0h00000000, 0hc1df5103, 0h4148c1c5, 0hc1df5103, 0h00000000, 
+	0hc16b5146, 0h00000000, 0hc21ae5b8, 0h00000000, 0hc21ae5b8, 0h00000000, 0hc16b5146, 0h00000000, 
+	0hc1df5103, 0hc148c1c5, 0h41df5103, 0h00000000, 0hc1df5103, 0h4148c1c5, 0h41df5103, 0h00000000, 
+	0hc21ae5b8, 0h00000000, 0h416b5146, 0h00000000, 0hc16b5146, 0h00000000, 0h421ae5b8, 0h00000000, 
+	0hc148c1c5, 0h41df5103, 0hc1df5103, 0h00000000, 0h4148c1c5, 0h41df5103, 0hc1df5103, 0h00000000, 
+	0h00000000, 0h416b5146, 0hc21ae5b8, 0h00000000, 0h00000000, 0h421ae5b8, 0hc16b5146, 0h00000000, 
+	0hc148c1c5, 0h41df5103, 0h41df5103, 0h00000000, 0h4148c1c5, 0h41df5103, 0h41df5103, 0h00000000, 
+	0h00000000, 0h421ae5b8, 0h416b5146, 0h00000000, 0h00000000, 0h416b5146, 0h421ae5b8, 0h00000000, 
+	0h41df5103, 0hc1df5103, 0hc148c1c5, 0h00000000, 0h41df5103, 0hc1df5103, 0h4148c1c5, 0h00000000, 
+	0h416b5146, 0hc21ae5b8, 0h00000000, 0h00000000, 0h421ae5b8, 0hc16b5146, 0h00000000, 0h00000000, 
+	0h41df5103, 0hc148c1c5, 0hc1df5103, 0h00000000, 0h41df5103, 0h4148c1c5, 0hc1df5103, 0h00000000, 
+	0h421ae5b8, 0h00000000, 0hc16b5146, 0h00000000, 0h416b5146, 0h00000000, 0hc21ae5b8, 0h00000000, 
+	0h41df5103, 0hc148c1c5, 0h41df5103, 0h00000000, 0h41df5103, 0h4148c1c5, 0h41df5103, 0h00000000, 
+	0h416b5146, 0h00000000, 0h421ae5b8, 0h00000000, 0h421ae5b8, 0h00000000, 0h416b5146, 0h00000000, 
+	0h41df5103, 0h41df5103, 0hc148c1c5, 0h00000000, 0h41df5103, 0h41df5103, 0h4148c1c5, 0h00000000, 
+	0h421ae5b8, 0h416b5146, 0h00000000, 0h00000000, 0h416b5146, 0h421ae5b8, 0h00000000, 0h00000000, 
+	0hc1df5103, 0h41df5103, 0hc148c1c5, 0h00000000, 0hc1df5103, 0h41df5103, 0h4148c1c5, 0h00000000, 
+	0hc16b5146, 0h421ae5b8, 0h00000000, 0h00000000, 0hc21ae5b8, 0h416b5146, 0h00000000, 0h00000000, 
+	0hc148c1c5, 0hc1df5103, 0hc1df5103, 0h00000000, 0h4148c1c5, 0hc1df5103, 0hc1df5103, 0h00000000, 
+	0h00000000, 0hc21ae5b8, 0hc16b5146, 0h00000000, 0h00000000, 0hc16b5146, 0hc21ae5b8, 0h00000000, 
+	0hc148c1c5, 0hc1df5103, 0h41df5103, 0h00000000, 0h4148c1c5, 0hc1df5103, 0h41df5103, 0h00000000, 
+	0h00000000, 0hc16b5146, 0h421ae5b8, 0h00000000, 0h00000000, 0hc21ae5b8, 0h416b5146, 0h00000000, 
+	0hc1df5103, 0hc1df5103, 0hc148c1c5, 0h00000000, 0hc1df5103, 0hc1df5103, 0h4148c1c5, 0h00000000, 
+	0hc21ae5b8, 0hc16b5146, 0h00000000, 0h00000000, 0hc16b5146, 0hc21ae5b8, 0h00000000, 0h00000000, 
+	0hc1df5103, 0hc148c1c5, 0hc1df5103, 0h00000000, 0hc1df5103, 0h4148c1c5, 0hc1df5103, 0h00000000, 
+	0hc16b5146, 0h00000000, 0hc21ae5b8, 0h00000000, 0hc21ae5b8, 0h00000000, 0hc16b5146, 0h00000000, 
+	0hc1df5103, 0hc148c1c5, 0h41df5103, 0h00000000, 0hc1df5103, 0h4148c1c5, 0h41df5103, 0h00000000, 
+	0hc21ae5b8, 0h00000000, 0h416b5146, 0h00000000, 0hc16b5146, 0h00000000, 0h421ae5b8, 0h00000000, 
+	0hc148c1c5, 0h41df5103, 0hc1df5103, 0h00000000, 0h4148c1c5, 0h41df5103, 0hc1df5103, 0h00000000, 
+	0h00000000, 0h416b5146, 0hc21ae5b8, 0h00000000, 0h00000000, 0h421ae5b8, 0hc16b5146, 0h00000000, 
+	0hc148c1c5, 0h41df5103, 0h41df5103, 0h00000000, 0h4148c1c5, 0h41df5103, 0h41df5103, 0h00000000, 
+	0h00000000, 0h421ae5b8, 0h416b5146, 0h00000000, 0h00000000, 0h416b5146, 0h421ae5b8, 0h00000000, 
+	0h41df5103, 0hc1df5103, 0hc148c1c5, 0h00000000, 0h41df5103, 0hc1df5103, 0h4148c1c5, 0h00000000, 
+	0h416b5146, 0hc21ae5b8, 0h00000000, 0h00000000, 0h421ae5b8, 0hc16b5146, 0h00000000, 0h00000000, 
+	0h41df5103, 0hc148c1c5, 0hc1df5103, 0h00000000, 0h41df5103, 0h4148c1c5, 0hc1df5103, 0h00000000, 
+	0h421ae5b8, 0h00000000, 0hc16b5146, 0h00000000, 0h416b5146, 0h00000000, 0hc21ae5b8, 0h00000000, 
+	0h41df5103, 0hc148c1c5, 0h41df5103, 0h00000000, 0h41df5103, 0h4148c1c5, 0h41df5103, 0h00000000, 
+	0h416b5146, 0h00000000, 0h421ae5b8, 0h00000000, 0h421ae5b8, 0h00000000, 0h416b5146, 0h00000000, 
+	0h41df5103, 0h41df5103, 0hc148c1c5, 0h00000000, 0h41df5103, 0h41df5103, 0h4148c1c5, 0h00000000, 
+	0h421ae5b8, 0h416b5146, 0h00000000, 0h00000000, 0h416b5146, 0h421ae5b8, 0h00000000, 0h00000000, 
+	0hc1df5103, 0h41df5103, 0hc148c1c5, 0h00000000, 0hc1df5103, 0h41df5103, 0h4148c1c5, 0h00000000, 
+	0hc16b5146, 0h421ae5b8, 0h00000000, 0h00000000, 0hc21ae5b8, 0h416b5146, 0h00000000, 0h00000000, 
+	0hc148c1c5, 0hc1df5103, 0hc1df5103, 0h00000000, 0h4148c1c5, 0hc1df5103, 0hc1df5103, 0h00000000, 
+	0h00000000, 0hc21ae5b8, 0hc16b5146, 0h00000000, 0h00000000, 0hc16b5146, 0hc21ae5b8, 0h00000000, 
+	0hc148c1c5, 0hc1df5103, 0h41df5103, 0h00000000, 0h4148c1c5, 0hc1df5103, 0h41df5103, 0h00000000, 
+	0h00000000, 0hc16b5146, 0h421ae5b8, 0h00000000, 0h00000000, 0hc21ae5b8, 0h416b5146, 0h00000000, 
+	0hc1df5103, 0hc1df5103, 0hc148c1c5, 0h00000000, 0hc1df5103, 0hc1df5103, 0h4148c1c5, 0h00000000, 
+	0hc21ae5b8, 0hc16b5146, 0h00000000, 0h00000000, 0hc16b5146, 0hc21ae5b8, 0h00000000, 0h00000000, 
+	0hc1df5103, 0hc148c1c5, 0hc1df5103, 0h00000000, 0hc1df5103, 0h4148c1c5, 0hc1df5103, 0h00000000, 
+	0hc16b5146, 0h00000000, 0hc21ae5b8, 0h00000000, 0hc21ae5b8, 0h00000000, 0hc16b5146, 0h00000000, 
+	0hc1df5103, 0hc148c1c5, 0h41df5103, 0h00000000, 0hc1df5103, 0h4148c1c5, 0h41df5103, 0h00000000, 
+	0hc21ae5b8, 0h00000000, 0h416b5146, 0h00000000, 0hc16b5146, 0h00000000, 0h421ae5b8, 0h00000000, 
+	0hc148c1c5, 0h41df5103, 0hc1df5103, 0h00000000, 0h4148c1c5, 0h41df5103, 0hc1df5103, 0h00000000, 
+	0h00000000, 0h416b5146, 0hc21ae5b8, 0h00000000, 0h00000000, 0h421ae5b8, 0hc16b5146, 0h00000000, 
+	0hc148c1c5, 0h41df5103, 0h41df5103, 0h00000000, 0h4148c1c5, 0h41df5103, 0h41df5103, 0h00000000, 
+	0h00000000, 0h421ae5b8, 0h416b5146, 0h00000000, 0h00000000, 0h416b5146, 0h421ae5b8, 0h00000000, 
+	0h41df5103, 0hc1df5103, 0hc148c1c5, 0h00000000, 0h41df5103, 0hc1df5103, 0h4148c1c5, 0h00000000, 
+	0h416b5146, 0hc21ae5b8, 0h00000000, 0h00000000, 0h421ae5b8, 0hc16b5146, 0h00000000, 0h00000000, 
+	0h41df5103, 0hc148c1c5, 0hc1df5103, 0h00000000, 0h41df5103, 0h4148c1c5, 0hc1df5103, 0h00000000, 
+	0h421ae5b8, 0h00000000, 0hc16b5146, 0h00000000, 0h416b5146, 0h00000000, 0hc21ae5b8, 0h00000000, 
+	0h41df5103, 0hc148c1c5, 0h41df5103, 0h00000000, 0h41df5103, 0h4148c1c5, 0h41df5103, 0h00000000, 
+	0h416b5146, 0h00000000, 0h421ae5b8, 0h00000000, 0h421ae5b8, 0h00000000, 0h416b5146, 0h00000000, 
+	0h41df5103, 0h41df5103, 0hc148c1c5, 0h00000000, 0h41df5103, 0h41df5103, 0h4148c1c5, 0h00000000, 
+	0h421ae5b8, 0h416b5146, 0h00000000, 0h00000000, 0h416b5146, 0h421ae5b8, 0h00000000, 0h00000000, 
+	0hc1df5103, 0h41df5103, 0hc148c1c5, 0h00000000, 0hc1df5103, 0h41df5103, 0h4148c1c5, 0h00000000, 
+	0hc16b5146, 0h421ae5b8, 0h00000000, 0h00000000, 0hc21ae5b8, 0h416b5146, 0h00000000, 0h00000000, 
+	0hc148c1c5, 0hc1df5103, 0hc1df5103, 0h00000000, 0h4148c1c5, 0hc1df5103, 0hc1df5103, 0h00000000, 
+	0h00000000, 0hc21ae5b8, 0hc16b5146, 0h00000000, 0h00000000, 0hc16b5146, 0hc21ae5b8, 0h00000000, 
+	0hc148c1c5, 0hc1df5103, 0h41df5103, 0h00000000, 0h4148c1c5, 0hc1df5103, 0h41df5103, 0h00000000, 
+	0h00000000, 0hc16b5146, 0h421ae5b8, 0h00000000, 0h00000000, 0hc21ae5b8, 0h416b5146, 0h00000000, 
+	0hc1df5103, 0hc1df5103, 0hc148c1c5, 0h00000000, 0hc1df5103, 0hc1df5103, 0h4148c1c5, 0h00000000, 
+	0hc21ae5b8, 0hc16b5146, 0h00000000, 0h00000000, 0hc16b5146, 0hc21ae5b8, 0h00000000, 0h00000000, 
+	0hc1df5103, 0hc148c1c5, 0hc1df5103, 0h00000000, 0hc1df5103, 0h4148c1c5, 0hc1df5103, 0h00000000, 
+	0hc16b5146, 0h00000000, 0hc21ae5b8, 0h00000000, 0hc21ae5b8, 0h00000000, 0hc16b5146, 0h00000000, 
+	0hc1df5103, 0hc148c1c5, 0h41df5103, 0h00000000, 0hc1df5103, 0h4148c1c5, 0h41df5103, 0h00000000, 
+	0hc21ae5b8, 0h00000000, 0h416b5146, 0h00000000, 0hc16b5146, 0h00000000, 0h421ae5b8, 0h00000000, 
+	0hc148c1c5, 0h41df5103, 0hc1df5103, 0h00000000, 0h4148c1c5, 0h41df5103, 0hc1df5103, 0h00000000, 
+	0h00000000, 0h416b5146, 0hc21ae5b8, 0h00000000, 0h00000000, 0h421ae5b8, 0hc16b5146, 0h00000000, 
+	0hc148c1c5, 0h41df5103, 0h41df5103, 0h00000000, 0h4148c1c5, 0h41df5103, 0h41df5103, 0h00000000, 
+	0h00000000, 0h421ae5b8, 0h416b5146, 0h00000000, 0h00000000, 0h416b5146, 0h421ae5b8, 0h00000000, 
+	0h41df5103, 0hc1df5103, 0hc148c1c5, 0h00000000, 0h41df5103, 0hc1df5103, 0h4148c1c5, 0h00000000, 
+	0h416b5146, 0hc21ae5b8, 0h00000000, 0h00000000, 0h421ae5b8, 0hc16b5146, 0h00000000, 0h00000000, 
+	0h41df5103, 0hc148c1c5, 0hc1df5103, 0h00000000, 0h41df5103, 0h4148c1c5, 0hc1df5103, 0h00000000, 
+	0h421ae5b8, 0h00000000, 0hc16b5146, 0h00000000, 0h416b5146, 0h00000000, 0hc21ae5b8, 0h00000000, 
+	0h41df5103, 0hc148c1c5, 0h41df5103, 0h00000000, 0h41df5103, 0h4148c1c5, 0h41df5103, 0h00000000, 
+	0h416b5146, 0h00000000, 0h421ae5b8, 0h00000000, 0h421ae5b8, 0h00000000, 0h416b5146, 0h00000000, 
+	0h41df5103, 0h41df5103, 0hc148c1c5, 0h00000000, 0h41df5103, 0h41df5103, 0h4148c1c5, 0h00000000, 
+	0h421ae5b8, 0h416b5146, 0h00000000, 0h00000000, 0h416b5146, 0h421ae5b8, 0h00000000, 0h00000000, 
+	0hc1df5103, 0h41df5103, 0hc148c1c5, 0h00000000, 0hc1df5103, 0h41df5103, 0h4148c1c5, 0h00000000, 
+	0hc16b5146, 0h421ae5b8, 0h00000000, 0h00000000, 0hc21ae5b8, 0h416b5146, 0h00000000, 0h00000000, 
+	0hc148c1c5, 0hc1df5103, 0hc1df5103, 0h00000000, 0h4148c1c5, 0hc1df5103, 0hc1df5103, 0h00000000, 
+	0h00000000, 0hc21ae5b8, 0hc16b5146, 0h00000000, 0h00000000, 0hc16b5146, 0hc21ae5b8, 0h00000000, 
+	0hc148c1c5, 0hc1df5103, 0h41df5103, 0h00000000, 0h4148c1c5, 0hc1df5103, 0h41df5103, 0h00000000, 
+	0h00000000, 0hc16b5146, 0h421ae5b8, 0h00000000, 0h00000000, 0hc21ae5b8, 0h416b5146, 0h00000000, 
+	0hc1df5103, 0hc1df5103, 0hc148c1c5, 0h00000000, 0hc1df5103, 0hc1df5103, 0h4148c1c5, 0h00000000, 
+	0hc21ae5b8, 0hc16b5146, 0h00000000, 0h00000000, 0hc16b5146, 0hc21ae5b8, 0h00000000, 0h00000000, 
+	0hc1df5103, 0hc148c1c5, 0hc1df5103, 0h00000000, 0hc1df5103, 0h4148c1c5, 0hc1df5103, 0h00000000, 
+	0hc16b5146, 0h00000000, 0hc21ae5b8, 0h00000000, 0hc21ae5b8, 0h00000000, 0hc16b5146, 0h00000000, 
+	0hc1df5103, 0hc148c1c5, 0h41df5103, 0h00000000, 0hc1df5103, 0h4148c1c5, 0h41df5103, 0h00000000, 
+	0hc21ae5b8, 0h00000000, 0h416b5146, 0h00000000, 0hc16b5146, 0h00000000, 0h421ae5b8, 0h00000000, 
+	0hc148c1c5, 0h41df5103, 0hc1df5103, 0h00000000, 0h4148c1c5, 0h41df5103, 0hc1df5103, 0h00000000, 
+	0h00000000, 0h416b5146, 0hc21ae5b8, 0h00000000, 0h00000000, 0h421ae5b8, 0hc16b5146, 0h00000000, 
+	0hc148c1c5, 0h41df5103, 0h41df5103, 0h00000000, 0h4148c1c5, 0h41df5103, 0h41df5103, 0h00000000, 
+	0h00000000, 0h421ae5b8, 0h416b5146, 0h00000000, 0h00000000, 0h416b5146, 0h421ae5b8, 0h00000000, 
+	0h41df5103, 0hc1df5103, 0hc148c1c5, 0h00000000, 0h41df5103, 0hc1df5103, 0h4148c1c5, 0h00000000, 
+	0h416b5146, 0hc21ae5b8, 0h00000000, 0h00000000, 0h421ae5b8, 0hc16b5146, 0h00000000, 0h00000000, 
+	0h41df5103, 0hc148c1c5, 0hc1df5103, 0h00000000, 0h41df5103, 0h4148c1c5, 0hc1df5103, 0h00000000, 
+	0h421ae5b8, 0h00000000, 0hc16b5146, 0h00000000, 0h416b5146, 0h00000000, 0hc21ae5b8, 0h00000000, 
+	0h41df5103, 0hc148c1c5, 0h41df5103, 0h00000000, 0h41df5103, 0h4148c1c5, 0h41df5103, 0h00000000, 
+	0h416b5146, 0h00000000, 0h421ae5b8, 0h00000000, 0h421ae5b8, 0h00000000, 0h416b5146, 0h00000000, 
+	0h41df5103, 0h41df5103, 0hc148c1c5, 0h00000000, 0h41df5103, 0h41df5103, 0h4148c1c5, 0h00000000, 
+	0h421ae5b8, 0h416b5146, 0h00000000, 0h00000000, 0h416b5146, 0h421ae5b8, 0h00000000, 0h00000000, 
+	0hc1df5103, 0h41df5103, 0hc148c1c5, 0h00000000, 0hc1df5103, 0h41df5103, 0h4148c1c5, 0h00000000, 
+	0hc16b5146, 0h421ae5b8, 0h00000000, 0h00000000, 0hc21ae5b8, 0h416b5146, 0h00000000, 0h00000000, 
+	0hc148c1c5, 0hc1df5103, 0hc1df5103, 0h00000000, 0h4148c1c5, 0hc1df5103, 0hc1df5103, 0h00000000, 
+	0h00000000, 0hc21ae5b8, 0hc16b5146, 0h00000000, 0h00000000, 0hc16b5146, 0hc21ae5b8, 0h00000000, 
+	0hc148c1c5, 0hc1df5103, 0h41df5103, 0h00000000, 0h4148c1c5, 0hc1df5103, 0h41df5103, 0h00000000, 
+	0h00000000, 0hc16b5146, 0h421ae5b8, 0h00000000, 0h00000000, 0hc21ae5b8, 0h416b5146, 0h00000000, 
+}
+
+GRADIENTS_4D := [N_GRADS_4D * 4]f32{
+	0hc1f50507, 0hc16b8e00, 0hc16b8e00, 0h41d2a716, 0hc208695c, 0hc19194b0, 0h40de6d7d, 0h41b6d966,
+	0hc208695c, 0h40de6d7d, 0hc19194b0, 0h41b6d966, 0hc22076c5, 0h406d72bf, 0h406d72bf, 0h41a58418,
+	0hc1a58418, 0hc06d72bf, 0hc06d72bf, 0h422076c5, 0hc1b6d966, 0hc0de6d7d, 0h419194b0, 0h4208695c,
+	0hc1b6d966, 0h419194b0, 0hc0de6d7d, 0h4208695c, 0hc1d2a716, 0h416b8e00, 0h416b8e00, 0h41f50507,
+	0hc1f50507, 0hc16b8e00, 0h41d2a716, 0hc16b8e00, 0hc208695c, 0hc19194b0, 0h41b6d966, 0h40de6d7d,
+	0hc208695c, 0h40de6d7d, 0h41b6d966, 0hc19194b0, 0hc22076c5, 0h406d72bf, 0h41a58418, 0h406d72bf,
+	0hc1a58418, 0hc06d72bf, 0h422076c5, 0hc06d72bf, 0hc1b6d966, 0hc0de6d7d, 0h4208695c, 0h419194b0,
+	0hc1b6d966, 0h419194b0, 0h4208695c, 0hc0de6d7d, 0hc1d2a716, 0h416b8e00, 0h41f50507, 0h416b8e00,
+	0hc1f50507, 0h41d2a716, 0hc16b8e00, 0hc16b8e00, 0hc208695c, 0h41b6d966, 0hc19194b0, 0h40de6d7d,
+	0hc208695c, 0h41b6d966, 0h40de6d7d, 0hc19194b0, 0hc22076c5, 0h41a58418, 0h406d72bf, 0h406d72bf,
+	0hc1a58418, 0h422076c5, 0hc06d72bf, 0hc06d72bf, 0hc1b6d966, 0h4208695c, 0hc0de6d7d, 0h419194b0,
+	0hc1b6d966, 0h4208695c, 0h419194b0, 0hc0de6d7d, 0hc1d2a716, 0h41f50507, 0h416b8e00, 0h416b8e00,
+	0h41d2a716, 0hc1f50507, 0hc16b8e00, 0hc16b8e00, 0h41b6d966, 0hc208695c, 0hc19194b0, 0h40de6d7d,
+	0h41b6d966, 0hc208695c, 0h40de6d7d, 0hc19194b0, 0h41a58418, 0hc22076c5, 0h406d72bf, 0h406d72bf,
+	0h422076c5, 0hc1a58418, 0hc06d72bf, 0hc06d72bf, 0h4208695c, 0hc1b6d966, 0hc0de6d7d, 0h419194b0,
+	0h4208695c, 0hc1b6d966, 0h419194b0, 0hc0de6d7d, 0h41f50507, 0hc1d2a716, 0h416b8e00, 0h416b8e00,
+	0hc208ee18, 0hc18a0670, 0hc18a0670, 0hc18a0670, 0hc20e2b7a, 0hc19d18ee, 0hc19d18ee, 0h40b05c85,
+	0hc20e2b7a, 0hc19d18ee, 0h40b05c85, 0hc19d18ee, 0hc20e2b7a, 0h40b05c85, 0hc19d18ee, 0hc19d18ee,
+	0hc21c1252, 0hc1b8e69d, 0h40024b8d, 0h40024b8d, 0hc21c1252, 0h40024b8d, 0hc1b8e69d, 0h40024b8d,
+	0hc21c1252, 0h40024b8d, 0h40024b8d, 0hc1b8e69d, 0hc235739c, 0hbfc4b564, 0hbfc4b564, 0hbfc4b564,
+	0hc18a0670, 0hc208ee18, 0hc18a0670, 0hc18a0670, 0hc19d18ee, 0hc20e2b7a, 0hc19d18ee, 0h40b05c85,
+	0hc19d18ee, 0hc20e2b7a, 0h40b05c85, 0hc19d18ee, 0h40b05c85, 0hc20e2b7a, 0hc19d18ee, 0hc19d18ee,
+	0hc1b8e69d, 0hc21c1252, 0h40024b8d, 0h40024b8d, 0h40024b8d, 0hc21c1252, 0hc1b8e69d, 0h40024b8d,
+	0h40024b8d, 0hc21c1252, 0h40024b8d, 0hc1b8e69d, 0hbfc4b564, 0hc235739c, 0hbfc4b564, 0hbfc4b564,
+	0hc18a0670, 0hc18a0670, 0hc208ee18, 0hc18a0670, 0hc19d18ee, 0hc19d18ee, 0hc20e2b7a, 0h40b05c85,
+	0hc19d18ee, 0h40b05c85, 0hc20e2b7a, 0hc19d18ee, 0h40b05c85, 0hc19d18ee, 0hc20e2b7a, 0hc19d18ee,
+	0hc1b8e69d, 0h40024b8d, 0hc21c1252, 0h40024b8d, 0h40024b8d, 0hc1b8e69d, 0hc21c1252, 0h40024b8d,
+	0h40024b8d, 0h40024b8d, 0hc21c1252, 0hc1b8e69d, 0hbfc4b564, 0hbfc4b564, 0hc235739c, 0hbfc4b564,
+	0hc18a0670, 0hc18a0670, 0hc18a0670, 0hc208ee18, 0hc19d18ee, 0hc19d18ee, 0h40b05c85, 0hc20e2b7a,
+	0hc19d18ee, 0h40b05c85, 0hc19d18ee, 0hc20e2b7a, 0h40b05c85, 0hc19d18ee, 0hc19d18ee, 0hc20e2b7a,
+	0hc1b8e69d, 0h40024b8d, 0h40024b8d, 0hc21c1252, 0h40024b8d, 0hc1b8e69d, 0h40024b8d, 0hc21c1252,
+	0h40024b8d, 0h40024b8d, 0hc1b8e69d, 0hc21c1252, 0hbfc4b564, 0hbfc4b564, 0hbfc4b564, 0hc235739c,
+	0hc16b8e00, 0hc1f50507, 0hc16b8e00, 0h41d2a716, 0hc19194b0, 0hc208695c, 0h40de6d7d, 0h41b6d966,
+	0h40de6d7d, 0hc208695c, 0hc19194b0, 0h41b6d966, 0h406d72bf, 0hc22076c5, 0h406d72bf, 0h41a58418,
+	0hc06d72bf, 0hc1a58418, 0hc06d72bf, 0h422076c5, 0hc0de6d7d, 0hc1b6d966, 0h419194b0, 0h4208695c,
+	0h419194b0, 0hc1b6d966, 0hc0de6d7d, 0h4208695c, 0h416b8e00, 0hc1d2a716, 0h416b8e00, 0h41f50507,
+	0hc16b8e00, 0hc16b8e00, 0hc1f50507, 0h41d2a716, 0hc19194b0, 0h40de6d7d, 0hc208695c, 0h41b6d966,
+	0h40de6d7d, 0hc19194b0, 0hc208695c, 0h41b6d966, 0h406d72bf, 0h406d72bf, 0hc22076c5, 0h41a58418,
+	0hc06d72bf, 0hc06d72bf, 0hc1a58418, 0h422076c5, 0hc0de6d7d, 0h419194b0, 0hc1b6d966, 0h4208695c,
+	0h419194b0, 0hc0de6d7d, 0hc1b6d966, 0h4208695c, 0h416b8e00, 0h416b8e00, 0hc1d2a716, 0h41f50507,
+	0hc16b8e00, 0hc1f50507, 0h41d2a716, 0hc16b8e00, 0hc19194b0, 0hc208695c, 0h41b6d966, 0h40de6d7d,
+	0h40de6d7d, 0hc208695c, 0h41b6d966, 0hc19194b0, 0h406d72bf, 0hc22076c5, 0h41a58418, 0h406d72bf,
+	0hc06d72bf, 0hc1a58418, 0h422076c5, 0hc06d72bf, 0hc0de6d7d, 0hc1b6d966, 0h4208695c, 0h419194b0,
+	0h419194b0, 0hc1b6d966, 0h4208695c, 0hc0de6d7d, 0h416b8e00, 0hc1d2a716, 0h41f50507, 0h416b8e00,
+	0hc16b8e00, 0hc16b8e00, 0h41d2a716, 0hc1f50507, 0hc19194b0, 0h40de6d7d, 0h41b6d966, 0hc208695c,
+	0h40de6d7d, 0hc19194b0, 0h41b6d966, 0hc208695c, 0h406d72bf, 0h406d72bf, 0h41a58418, 0hc22076c5,
+	0hc06d72bf, 0hc06d72bf, 0h422076c5, 0hc1a58418, 0hc0de6d7d, 0h419194b0, 0h4208695c, 0hc1b6d966,
+	0h419194b0, 0hc0de6d7d, 0h4208695c, 0hc1b6d966, 0h416b8e00, 0h416b8e00, 0h41f50507, 0hc1d2a716,
+	0hc16b8e00, 0h41d2a716, 0hc1f50507, 0hc16b8e00, 0hc19194b0, 0h41b6d966, 0hc208695c, 0h40de6d7d,
+	0h40de6d7d, 0h41b6d966, 0hc208695c, 0hc19194b0, 0h406d72bf, 0h41a58418, 0hc22076c5, 0h406d72bf,
+	0hc06d72bf, 0h422076c5, 0hc1a58418, 0hc06d72bf, 0hc0de6d7d, 0h4208695c, 0hc1b6d966, 0h419194b0,
+	0h419194b0, 0h4208695c, 0hc1b6d966, 0hc0de6d7d, 0h416b8e00, 0h41f50507, 0hc1d2a716, 0h416b8e00,
+	0hc16b8e00, 0h41d2a716, 0hc16b8e00, 0hc1f50507, 0hc19194b0, 0h41b6d966, 0h40de6d7d, 0hc208695c,
+	0h40de6d7d, 0h41b6d966, 0hc19194b0, 0hc208695c, 0h406d72bf, 0h41a58418, 0h406d72bf, 0hc22076c5,
+	0hc06d72bf, 0h422076c5, 0hc06d72bf, 0hc1a58418, 0hc0de6d7d, 0h4208695c, 0h419194b0, 0hc1b6d966,
+	0h419194b0, 0h4208695c, 0hc0de6d7d, 0hc1b6d966, 0h416b8e00, 0h41f50507, 0h416b8e00, 0hc1d2a716,
+	0h41d2a716, 0hc16b8e00, 0hc1f50507, 0hc16b8e00, 0h41b6d966, 0hc19194b0, 0hc208695c, 0h40de6d7d,
+	0h41b6d966, 0h40de6d7d, 0hc208695c, 0hc19194b0, 0h41a58418, 0h406d72bf, 0hc22076c5, 0h406d72bf,
+	0h422076c5, 0hc06d72bf, 0hc1a58418, 0hc06d72bf, 0h4208695c, 0hc0de6d7d, 0hc1b6d966, 0h419194b0,
+	0h4208695c, 0h419194b0, 0hc1b6d966, 0hc0de6d7d, 0h41f50507, 0h416b8e00, 0hc1d2a716, 0h416b8e00,
+	0h41d2a716, 0hc16b8e00, 0hc16b8e00, 0hc1f50507, 0h41b6d966, 0hc19194b0, 0h40de6d7d, 0hc208695c,
+	0h41b6d966, 0h40de6d7d, 0hc19194b0, 0hc208695c, 0h41a58418, 0h406d72bf, 0h406d72bf, 0hc22076c5,
+	0h422076c5, 0hc06d72bf, 0hc06d72bf, 0hc1a58418, 0h4208695c, 0hc0de6d7d, 0h419194b0, 0hc1b6d966,
+	0h4208695c, 0h419194b0, 0hc0de6d7d, 0hc1b6d966, 0h41f50507, 0h416b8e00, 0h416b8e00, 0hc1d2a716,
+	0h3fc4b564, 0h3fc4b564, 0h3fc4b564, 0h4235739c, 0hc0024b8d, 0hc0024b8d, 0h41b8e69d, 0h421c1252,
+	0hc0024b8d, 0h41b8e69d, 0hc0024b8d, 0h421c1252, 0hc0b05c85, 0h419d18ee, 0h419d18ee, 0h420e2b7a,
+	0h41b8e69d, 0hc0024b8d, 0hc0024b8d, 0h421c1252, 0h419d18ee, 0hc0b05c85, 0h419d18ee, 0h420e2b7a,
+	0h419d18ee, 0h419d18ee, 0hc0b05c85, 0h420e2b7a, 0h418a0670, 0h418a0670, 0h418a0670, 0h4208ee18,
+	0h3fc4b564, 0h3fc4b564, 0h4235739c, 0h3fc4b564, 0hc0024b8d, 0h40024b8d, 0h421c1252, 0h41b8e69d,
+	0hc0024b8d, 0h41b8e69d, 0h421c1252, 0hc0024b8d, 0hc0b05c85, 0h419d18ee, 0h420e2b7a, 0h419d18ee,
+	0h41b8e69d, 0hc0024b8d, 0h421c1252, 0hc0024b8d, 0h419d18ee, 0hc0b05c85, 0h420e2b7a, 0h419d18ee,
+	0h419d18ee, 0h419d18ee, 0h420e2b7a, 0hc0b05c85, 0h418a0670, 0h418a0670, 0h4208ee18, 0h418a0670,
+	0h3fc4b564, 0h4235739c, 0h3fc4b564, 0h3fc4b564, 0hc0024b8d, 0h421c1252, 0hc0024b8d, 0h41b8e69d,
+	0hc0024b8d, 0h421c1252, 0h41b8e69d, 0hc0024b8d, 0hc0b05c85, 0h420e2b7a, 0h419d18ee, 0h419d18ee,
+	0h41b8e69d, 0h421c1252, 0hc0024b8d, 0hc0024b8d, 0h419d18ee, 0h420e2b7a, 0hc0b05c85, 0h419d18ee,
+	0h419d18ee, 0h420e2b7a, 0h419d18ee, 0hc0b05c85, 0h418a0670, 0h4208ee18, 0h418a0670, 0h418a0670,
+	0h4235739c, 0h3fc4b564, 0h3fc4b564, 0h3fc4b564, 0h421c1252, 0hc0024b8d, 0hc0024b8d, 0h41b8e69d,
+	0h421c1252, 0hc0024b8d, 0h41b8e69d, 0hc0024b8d, 0h420e2b7a, 0hc0b05c85, 0h419d18ee, 0h419d18ee,
+	0h421c1252, 0h41b8e69d, 0hc0024b8d, 0hc0024b8d, 0h420e2b7a, 0h419d18ee, 0hc0b05c85, 0h419d18ee,
+	0h420e2b7a, 0h419d18ee, 0h419d18ee, 0hc0b05c85, 0h4208ee18, 0h418a0670, 0h418a0670, 0h418a0670,
+	0hc1f50507, 0hc16b8e00, 0hc16b8e00, 0h41d2a716, 0hc208695c, 0hc19194b0, 0h40de6d7d, 0h41b6d966,
+	0hc208695c, 0h40de6d7d, 0hc19194b0, 0h41b6d966, 0hc22076c5, 0h406d72bf, 0h406d72bf, 0h41a58418,
+	0hc1a58418, 0hc06d72bf, 0hc06d72bf, 0h422076c5, 0hc1b6d966, 0hc0de6d7d, 0h419194b0, 0h4208695c,
+	0hc1b6d966, 0h419194b0, 0hc0de6d7d, 0h4208695c, 0hc1d2a716, 0h416b8e00, 0h416b8e00, 0h41f50507,
+	0hc1f50507, 0hc16b8e00, 0h41d2a716, 0hc16b8e00, 0hc208695c, 0hc19194b0, 0h41b6d966, 0h40de6d7d,
+	0hc208695c, 0h40de6d7d, 0h41b6d966, 0hc19194b0, 0hc22076c5, 0h406d72bf, 0h41a58418, 0h406d72bf,
+	0hc1a58418, 0hc06d72bf, 0h422076c5, 0hc06d72bf, 0hc1b6d966, 0hc0de6d7d, 0h4208695c, 0h419194b0,
+	0hc1b6d966, 0h419194b0, 0h4208695c, 0hc0de6d7d, 0hc1d2a716, 0h416b8e00, 0h41f50507, 0h416b8e00,
+	0hc1f50507, 0h41d2a716, 0hc16b8e00, 0hc16b8e00, 0hc208695c, 0h41b6d966, 0hc19194b0, 0h40de6d7d,
+	0hc208695c, 0h41b6d966, 0h40de6d7d, 0hc19194b0, 0hc22076c5, 0h41a58418, 0h406d72bf, 0h406d72bf,
+	0hc1a58418, 0h422076c5, 0hc06d72bf, 0hc06d72bf, 0hc1b6d966, 0h4208695c, 0hc0de6d7d, 0h419194b0,
+	0hc1b6d966, 0h4208695c, 0h419194b0, 0hc0de6d7d, 0hc1d2a716, 0h41f50507, 0h416b8e00, 0h416b8e00,
+	0h41d2a716, 0hc1f50507, 0hc16b8e00, 0hc16b8e00, 0h41b6d966, 0hc208695c, 0hc19194b0, 0h40de6d7d,
+	0h41b6d966, 0hc208695c, 0h40de6d7d, 0hc19194b0, 0h41a58418, 0hc22076c5, 0h406d72bf, 0h406d72bf,
+	0h422076c5, 0hc1a58418, 0hc06d72bf, 0hc06d72bf, 0h4208695c, 0hc1b6d966, 0hc0de6d7d, 0h419194b0,
+	0h4208695c, 0hc1b6d966, 0h419194b0, 0hc0de6d7d, 0h41f50507, 0hc1d2a716, 0h416b8e00, 0h416b8e00,
+	0hc208ee18, 0hc18a0670, 0hc18a0670, 0hc18a0670, 0hc20e2b7a, 0hc19d18ee, 0hc19d18ee, 0h40b05c85,
+	0hc20e2b7a, 0hc19d18ee, 0h40b05c85, 0hc19d18ee, 0hc20e2b7a, 0h40b05c85, 0hc19d18ee, 0hc19d18ee,
+	0hc21c1252, 0hc1b8e69d, 0h40024b8d, 0h40024b8d, 0hc21c1252, 0h40024b8d, 0hc1b8e69d, 0h40024b8d,
+	0hc21c1252, 0h40024b8d, 0h40024b8d, 0hc1b8e69d, 0hc235739c, 0hbfc4b564, 0hbfc4b564, 0hbfc4b564,
+	0hc18a0670, 0hc208ee18, 0hc18a0670, 0hc18a0670, 0hc19d18ee, 0hc20e2b7a, 0hc19d18ee, 0h40b05c85,
+	0hc19d18ee, 0hc20e2b7a, 0h40b05c85, 0hc19d18ee, 0h40b05c85, 0hc20e2b7a, 0hc19d18ee, 0hc19d18ee,
+	0hc1b8e69d, 0hc21c1252, 0h40024b8d, 0h40024b8d, 0h40024b8d, 0hc21c1252, 0hc1b8e69d, 0h40024b8d,
+	0h40024b8d, 0hc21c1252, 0h40024b8d, 0hc1b8e69d, 0hbfc4b564, 0hc235739c, 0hbfc4b564, 0hbfc4b564,
+	0hc18a0670, 0hc18a0670, 0hc208ee18, 0hc18a0670, 0hc19d18ee, 0hc19d18ee, 0hc20e2b7a, 0h40b05c85,
+	0hc19d18ee, 0h40b05c85, 0hc20e2b7a, 0hc19d18ee, 0h40b05c85, 0hc19d18ee, 0hc20e2b7a, 0hc19d18ee,
+	0hc1b8e69d, 0h40024b8d, 0hc21c1252, 0h40024b8d, 0h40024b8d, 0hc1b8e69d, 0hc21c1252, 0h40024b8d,
+	0h40024b8d, 0h40024b8d, 0hc21c1252, 0hc1b8e69d, 0hbfc4b564, 0hbfc4b564, 0hc235739c, 0hbfc4b564,
+	0hc18a0670, 0hc18a0670, 0hc18a0670, 0hc208ee18, 0hc19d18ee, 0hc19d18ee, 0h40b05c85, 0hc20e2b7a,
+	0hc19d18ee, 0h40b05c85, 0hc19d18ee, 0hc20e2b7a, 0h40b05c85, 0hc19d18ee, 0hc19d18ee, 0hc20e2b7a,
+	0hc1b8e69d, 0h40024b8d, 0h40024b8d, 0hc21c1252, 0h40024b8d, 0hc1b8e69d, 0h40024b8d, 0hc21c1252,
+	0h40024b8d, 0h40024b8d, 0hc1b8e69d, 0hc21c1252, 0hbfc4b564, 0hbfc4b564, 0hbfc4b564, 0hc235739c,
+	0hc16b8e00, 0hc1f50507, 0hc16b8e00, 0h41d2a716, 0hc19194b0, 0hc208695c, 0h40de6d7d, 0h41b6d966,
+	0h40de6d7d, 0hc208695c, 0hc19194b0, 0h41b6d966, 0h406d72bf, 0hc22076c5, 0h406d72bf, 0h41a58418,
+	0hc06d72bf, 0hc1a58418, 0hc06d72bf, 0h422076c5, 0hc0de6d7d, 0hc1b6d966, 0h419194b0, 0h4208695c,
+	0h419194b0, 0hc1b6d966, 0hc0de6d7d, 0h4208695c, 0h416b8e00, 0hc1d2a716, 0h416b8e00, 0h41f50507,
+	0hc16b8e00, 0hc16b8e00, 0hc1f50507, 0h41d2a716, 0hc19194b0, 0h40de6d7d, 0hc208695c, 0h41b6d966,
+	0h40de6d7d, 0hc19194b0, 0hc208695c, 0h41b6d966, 0h406d72bf, 0h406d72bf, 0hc22076c5, 0h41a58418,
+	0hc06d72bf, 0hc06d72bf, 0hc1a58418, 0h422076c5, 0hc0de6d7d, 0h419194b0, 0hc1b6d966, 0h4208695c,
+	0h419194b0, 0hc0de6d7d, 0hc1b6d966, 0h4208695c, 0h416b8e00, 0h416b8e00, 0hc1d2a716, 0h41f50507,
+	0hc16b8e00, 0hc1f50507, 0h41d2a716, 0hc16b8e00, 0hc19194b0, 0hc208695c, 0h41b6d966, 0h40de6d7d,
+	0h40de6d7d, 0hc208695c, 0h41b6d966, 0hc19194b0, 0h406d72bf, 0hc22076c5, 0h41a58418, 0h406d72bf,
+	0hc06d72bf, 0hc1a58418, 0h422076c5, 0hc06d72bf, 0hc0de6d7d, 0hc1b6d966, 0h4208695c, 0h419194b0,
+	0h419194b0, 0hc1b6d966, 0h4208695c, 0hc0de6d7d, 0h416b8e00, 0hc1d2a716, 0h41f50507, 0h416b8e00,
+	0hc16b8e00, 0hc16b8e00, 0h41d2a716, 0hc1f50507, 0hc19194b0, 0h40de6d7d, 0h41b6d966, 0hc208695c,
+	0h40de6d7d, 0hc19194b0, 0h41b6d966, 0hc208695c, 0h406d72bf, 0h406d72bf, 0h41a58418, 0hc22076c5,
+	0hc06d72bf, 0hc06d72bf, 0h422076c5, 0hc1a58418, 0hc0de6d7d, 0h419194b0, 0h4208695c, 0hc1b6d966,
+	0h419194b0, 0hc0de6d7d, 0h4208695c, 0hc1b6d966, 0h416b8e00, 0h416b8e00, 0h41f50507, 0hc1d2a716,
+	0hc16b8e00, 0h41d2a716, 0hc1f50507, 0hc16b8e00, 0hc19194b0, 0h41b6d966, 0hc208695c, 0h40de6d7d,
+	0h40de6d7d, 0h41b6d966, 0hc208695c, 0hc19194b0, 0h406d72bf, 0h41a58418, 0hc22076c5, 0h406d72bf,
+	0hc06d72bf, 0h422076c5, 0hc1a58418, 0hc06d72bf, 0hc0de6d7d, 0h4208695c, 0hc1b6d966, 0h419194b0,
+	0h419194b0, 0h4208695c, 0hc1b6d966, 0hc0de6d7d, 0h416b8e00, 0h41f50507, 0hc1d2a716, 0h416b8e00,
+	0hc16b8e00, 0h41d2a716, 0hc16b8e00, 0hc1f50507, 0hc19194b0, 0h41b6d966, 0h40de6d7d, 0hc208695c,
+	0h40de6d7d, 0h41b6d966, 0hc19194b0, 0hc208695c, 0h406d72bf, 0h41a58418, 0h406d72bf, 0hc22076c5,
+	0hc06d72bf, 0h422076c5, 0hc06d72bf, 0hc1a58418, 0hc0de6d7d, 0h4208695c, 0h419194b0, 0hc1b6d966,
+	0h419194b0, 0h4208695c, 0hc0de6d7d, 0hc1b6d966, 0h416b8e00, 0h41f50507, 0h416b8e00, 0hc1d2a716,
+	0h41d2a716, 0hc16b8e00, 0hc1f50507, 0hc16b8e00, 0h41b6d966, 0hc19194b0, 0hc208695c, 0h40de6d7d,
+	0h41b6d966, 0h40de6d7d, 0hc208695c, 0hc19194b0, 0h41a58418, 0h406d72bf, 0hc22076c5, 0h406d72bf,
+	0h422076c5, 0hc06d72bf, 0hc1a58418, 0hc06d72bf, 0h4208695c, 0hc0de6d7d, 0hc1b6d966, 0h419194b0,
+	0h4208695c, 0h419194b0, 0hc1b6d966, 0hc0de6d7d, 0h41f50507, 0h416b8e00, 0hc1d2a716, 0h416b8e00,
+	0h41d2a716, 0hc16b8e00, 0hc16b8e00, 0hc1f50507, 0h41b6d966, 0hc19194b0, 0h40de6d7d, 0hc208695c,
+	0h41b6d966, 0h40de6d7d, 0hc19194b0, 0hc208695c, 0h41a58418, 0h406d72bf, 0h406d72bf, 0hc22076c5,
+	0h422076c5, 0hc06d72bf, 0hc06d72bf, 0hc1a58418, 0h4208695c, 0hc0de6d7d, 0h419194b0, 0hc1b6d966,
+	0h4208695c, 0h419194b0, 0hc0de6d7d, 0hc1b6d966, 0h41f50507, 0h416b8e00, 0h416b8e00, 0hc1d2a716,
+	0h3fc4b564, 0h3fc4b564, 0h3fc4b564, 0h4235739c, 0hc0024b8d, 0hc0024b8d, 0h41b8e69d, 0h421c1252,
+	0hc0024b8d, 0h41b8e69d, 0hc0024b8d, 0h421c1252, 0hc0b05c85, 0h419d18ee, 0h419d18ee, 0h420e2b7a,
+	0h41b8e69d, 0hc0024b8d, 0hc0024b8d, 0h421c1252, 0h419d18ee, 0hc0b05c85, 0h419d18ee, 0h420e2b7a,
+	0h419d18ee, 0h419d18ee, 0hc0b05c85, 0h420e2b7a, 0h418a0670, 0h418a0670, 0h418a0670, 0h4208ee18,
+	0h3fc4b564, 0h3fc4b564, 0h4235739c, 0h3fc4b564, 0hc0024b8d, 0h40024b8d, 0h421c1252, 0h41b8e69d,
+	0hc0024b8d, 0h41b8e69d, 0h421c1252, 0hc0024b8d, 0hc0b05c85, 0h419d18ee, 0h420e2b7a, 0h419d18ee,
+	0h41b8e69d, 0hc0024b8d, 0h421c1252, 0hc0024b8d, 0h419d18ee, 0hc0b05c85, 0h420e2b7a, 0h419d18ee,
+	0h419d18ee, 0h419d18ee, 0h420e2b7a, 0hc0b05c85, 0h418a0670, 0h418a0670, 0h4208ee18, 0h418a0670,
+	0h3fc4b564, 0h4235739c, 0h3fc4b564, 0h3fc4b564, 0hc0024b8d, 0h421c1252, 0hc0024b8d, 0h41b8e69d,
+	0hc0024b8d, 0h421c1252, 0h41b8e69d, 0hc0024b8d, 0hc0b05c85, 0h420e2b7a, 0h419d18ee, 0h419d18ee,
+	0h41b8e69d, 0h421c1252, 0hc0024b8d, 0hc0024b8d, 0h419d18ee, 0h420e2b7a, 0hc0b05c85, 0h419d18ee,
+	0h419d18ee, 0h420e2b7a, 0h419d18ee, 0hc0b05c85, 0h418a0670, 0h4208ee18, 0h418a0670, 0h418a0670,
+	0h4235739c, 0h3fc4b564, 0h3fc4b564, 0h3fc4b564, 0h421c1252, 0hc0024b8d, 0hc0024b8d, 0h41b8e69d,
+	0h421c1252, 0hc0024b8d, 0h41b8e69d, 0hc0024b8d, 0h420e2b7a, 0hc0b05c85, 0h419d18ee, 0h419d18ee,
+	0h421c1252, 0h41b8e69d, 0hc0024b8d, 0hc0024b8d, 0h420e2b7a, 0h419d18ee, 0hc0b05c85, 0h419d18ee,
+	0h420e2b7a, 0h419d18ee, 0h419d18ee, 0hc0b05c85, 0h4208ee18, 0h418a0670, 0h418a0670, 0h418a0670,
+	0hc1f50507, 0hc16b8e00, 0hc16b8e00, 0h41d2a716, 0hc208695c, 0hc19194b0, 0h40de6d7d, 0h41b6d966,
+	0hc208695c, 0h40de6d7d, 0hc19194b0, 0h41b6d966, 0hc22076c5, 0h406d72bf, 0h406d72bf, 0h41a58418,
+	0hc1a58418, 0hc06d72bf, 0hc06d72bf, 0h422076c5, 0hc1b6d966, 0hc0de6d7d, 0h419194b0, 0h4208695c,
+	0hc1b6d966, 0h419194b0, 0hc0de6d7d, 0h4208695c, 0hc1d2a716, 0h416b8e00, 0h416b8e00, 0h41f50507,
+	0hc1f50507, 0hc16b8e00, 0h41d2a716, 0hc16b8e00, 0hc208695c, 0hc19194b0, 0h41b6d966, 0h40de6d7d,
+	0hc208695c, 0h40de6d7d, 0h41b6d966, 0hc19194b0, 0hc22076c5, 0h406d72bf, 0h41a58418, 0h406d72bf,
+	0hc1a58418, 0hc06d72bf, 0h422076c5, 0hc06d72bf, 0hc1b6d966, 0hc0de6d7d, 0h4208695c, 0h419194b0,
+	0hc1b6d966, 0h419194b0, 0h4208695c, 0hc0de6d7d, 0hc1d2a716, 0h416b8e00, 0h41f50507, 0h416b8e00,
+	0hc1f50507, 0h41d2a716, 0hc16b8e00, 0hc16b8e00, 0hc208695c, 0h41b6d966, 0hc19194b0, 0h40de6d7d,
+	0hc208695c, 0h41b6d966, 0h40de6d7d, 0hc19194b0, 0hc22076c5, 0h41a58418, 0h406d72bf, 0h406d72bf,
+	0hc1a58418, 0h422076c5, 0hc06d72bf, 0hc06d72bf, 0hc1b6d966, 0h4208695c, 0hc0de6d7d, 0h419194b0,
+	0hc1b6d966, 0h4208695c, 0h419194b0, 0hc0de6d7d, 0hc1d2a716, 0h41f50507, 0h416b8e00, 0h416b8e00,
+	0h41d2a716, 0hc1f50507, 0hc16b8e00, 0hc16b8e00, 0h41b6d966, 0hc208695c, 0hc19194b0, 0h40de6d7d,
+	0h41b6d966, 0hc208695c, 0h40de6d7d, 0hc19194b0, 0h41a58418, 0hc22076c5, 0h406d72bf, 0h406d72bf,
+	0h422076c5, 0hc1a58418, 0hc06d72bf, 0hc06d72bf, 0h4208695c, 0hc1b6d966, 0hc0de6d7d, 0h419194b0,
+	0h4208695c, 0hc1b6d966, 0h419194b0, 0hc0de6d7d, 0h41f50507, 0hc1d2a716, 0h416b8e00, 0h416b8e00,
+	0hc208ee18, 0hc18a0670, 0hc18a0670, 0hc18a0670, 0hc20e2b7a, 0hc19d18ee, 0hc19d18ee, 0h40b05c85,
+	0hc20e2b7a, 0hc19d18ee, 0h40b05c85, 0hc19d18ee, 0hc20e2b7a, 0h40b05c85, 0hc19d18ee, 0hc19d18ee,
+	0hc21c1252, 0hc1b8e69d, 0h40024b8d, 0h40024b8d, 0hc21c1252, 0h40024b8d, 0hc1b8e69d, 0h40024b8d,
+	0hc21c1252, 0h40024b8d, 0h40024b8d, 0hc1b8e69d, 0hc235739c, 0hbfc4b564, 0hbfc4b564, 0hbfc4b564,
+	0hc18a0670, 0hc208ee18, 0hc18a0670, 0hc18a0670, 0hc19d18ee, 0hc20e2b7a, 0hc19d18ee, 0h40b05c85,
+	0hc19d18ee, 0hc20e2b7a, 0h40b05c85, 0hc19d18ee, 0h40b05c85, 0hc20e2b7a, 0hc19d18ee, 0hc19d18ee,
+	0hc1b8e69d, 0hc21c1252, 0h40024b8d, 0h40024b8d, 0h40024b8d, 0hc21c1252, 0hc1b8e69d, 0h40024b8d,
+	0h40024b8d, 0hc21c1252, 0h40024b8d, 0hc1b8e69d, 0hbfc4b564, 0hc235739c, 0hbfc4b564, 0hbfc4b564,
+	0hc18a0670, 0hc18a0670, 0hc208ee18, 0hc18a0670, 0hc19d18ee, 0hc19d18ee, 0hc20e2b7a, 0h40b05c85,
+	0hc19d18ee, 0h40b05c85, 0hc20e2b7a, 0hc19d18ee, 0h40b05c85, 0hc19d18ee, 0hc20e2b7a, 0hc19d18ee,
+	0hc1b8e69d, 0h40024b8d, 0hc21c1252, 0h40024b8d, 0h40024b8d, 0hc1b8e69d, 0hc21c1252, 0h40024b8d,
+	0h40024b8d, 0h40024b8d, 0hc21c1252, 0hc1b8e69d, 0hbfc4b564, 0hbfc4b564, 0hc235739c, 0hbfc4b564,
+	0hc18a0670, 0hc18a0670, 0hc18a0670, 0hc208ee18, 0hc19d18ee, 0hc19d18ee, 0h40b05c85, 0hc20e2b7a,
+	0hc19d18ee, 0h40b05c85, 0hc19d18ee, 0hc20e2b7a, 0h40b05c85, 0hc19d18ee, 0hc19d18ee, 0hc20e2b7a,
+	0hc1b8e69d, 0h40024b8d, 0h40024b8d, 0hc21c1252, 0h40024b8d, 0hc1b8e69d, 0h40024b8d, 0hc21c1252,
+	0h40024b8d, 0h40024b8d, 0hc1b8e69d, 0hc21c1252, 0hbfc4b564, 0hbfc4b564, 0hbfc4b564, 0hc235739c,
+	0hc16b8e00, 0hc1f50507, 0hc16b8e00, 0h41d2a716, 0hc19194b0, 0hc208695c, 0h40de6d7d, 0h41b6d966,
+	0h40de6d7d, 0hc208695c, 0hc19194b0, 0h41b6d966, 0h406d72bf, 0hc22076c5, 0h406d72bf, 0h41a58418,
+	0hc06d72bf, 0hc1a58418, 0hc06d72bf, 0h422076c5, 0hc0de6d7d, 0hc1b6d966, 0h419194b0, 0h4208695c,
+	0h419194b0, 0hc1b6d966, 0hc0de6d7d, 0h4208695c, 0h416b8e00, 0hc1d2a716, 0h416b8e00, 0h41f50507,
+	0hc16b8e00, 0hc16b8e00, 0hc1f50507, 0h41d2a716, 0hc19194b0, 0h40de6d7d, 0hc208695c, 0h41b6d966,
+	0h40de6d7d, 0hc19194b0, 0hc208695c, 0h41b6d966, 0h406d72bf, 0h406d72bf, 0hc22076c5, 0h41a58418,
+	0hc06d72bf, 0hc06d72bf, 0hc1a58418, 0h422076c5, 0hc0de6d7d, 0h419194b0, 0hc1b6d966, 0h4208695c,
+	0h419194b0, 0hc0de6d7d, 0hc1b6d966, 0h4208695c, 0h416b8e00, 0h416b8e00, 0hc1d2a716, 0h41f50507,
+	0hc16b8e00, 0hc1f50507, 0h41d2a716, 0hc16b8e00, 0hc19194b0, 0hc208695c, 0h41b6d966, 0h40de6d7d,
+	0h40de6d7d, 0hc208695c, 0h41b6d966, 0hc19194b0, 0h406d72bf, 0hc22076c5, 0h41a58418, 0h406d72bf,
+	0hc06d72bf, 0hc1a58418, 0h422076c5, 0hc06d72bf, 0hc0de6d7d, 0hc1b6d966, 0h4208695c, 0h419194b0,
+	0h419194b0, 0hc1b6d966, 0h4208695c, 0hc0de6d7d, 0h416b8e00, 0hc1d2a716, 0h41f50507, 0h416b8e00,
+	0hc16b8e00, 0hc16b8e00, 0h41d2a716, 0hc1f50507, 0hc19194b0, 0h40de6d7d, 0h41b6d966, 0hc208695c,
+	0h40de6d7d, 0hc19194b0, 0h41b6d966, 0hc208695c, 0h406d72bf, 0h406d72bf, 0h41a58418, 0hc22076c5,
+	0hc06d72bf, 0hc06d72bf, 0h422076c5, 0hc1a58418, 0hc0de6d7d, 0h419194b0, 0h4208695c, 0hc1b6d966,
+	0h419194b0, 0hc0de6d7d, 0h4208695c, 0hc1b6d966, 0h416b8e00, 0h416b8e00, 0h41f50507, 0hc1d2a716,
+	0hc16b8e00, 0h41d2a716, 0hc1f50507, 0hc16b8e00, 0hc19194b0, 0h41b6d966, 0hc208695c, 0h40de6d7d,
+	0h40de6d7d, 0h41b6d966, 0hc208695c, 0hc19194b0, 0h406d72bf, 0h41a58418, 0hc22076c5, 0h406d72bf,
+	0hc06d72bf, 0h422076c5, 0hc1a58418, 0hc06d72bf, 0hc0de6d7d, 0h4208695c, 0hc1b6d966, 0h419194b0,
+	0h419194b0, 0h4208695c, 0hc1b6d966, 0hc0de6d7d, 0h416b8e00, 0h41f50507, 0hc1d2a716, 0h416b8e00,
+	0hc16b8e00, 0h41d2a716, 0hc16b8e00, 0hc1f50507, 0hc19194b0, 0h41b6d966, 0h40de6d7d, 0hc208695c,
+	0h40de6d7d, 0h41b6d966, 0hc19194b0, 0hc208695c, 0h406d72bf, 0h41a58418, 0h406d72bf, 0hc22076c5,
+	0hc06d72bf, 0h422076c5, 0hc06d72bf, 0hc1a58418, 0hc0de6d7d, 0h4208695c, 0h419194b0, 0hc1b6d966,
+	0h419194b0, 0h4208695c, 0hc0de6d7d, 0hc1b6d966, 0h416b8e00, 0h41f50507, 0h416b8e00, 0hc1d2a716,
+	0h41d2a716, 0hc16b8e00, 0hc1f50507, 0hc16b8e00, 0h41b6d966, 0hc19194b0, 0hc208695c, 0h40de6d7d,
+	0h41b6d966, 0h40de6d7d, 0hc208695c, 0hc19194b0, 0h41a58418, 0h406d72bf, 0hc22076c5, 0h406d72bf,
+	0h422076c5, 0hc06d72bf, 0hc1a58418, 0hc06d72bf, 0h4208695c, 0hc0de6d7d, 0hc1b6d966, 0h419194b0,
+	0h4208695c, 0h419194b0, 0hc1b6d966, 0hc0de6d7d, 0h41f50507, 0h416b8e00, 0hc1d2a716, 0h416b8e00,
+	0h41d2a716, 0hc16b8e00, 0hc16b8e00, 0hc1f50507, 0h41b6d966, 0hc19194b0, 0h40de6d7d, 0hc208695c,
+	0h41b6d966, 0h40de6d7d, 0hc19194b0, 0hc208695c, 0h41a58418, 0h406d72bf, 0h406d72bf, 0hc22076c5,
+	0h422076c5, 0hc06d72bf, 0hc06d72bf, 0hc1a58418, 0h4208695c, 0hc0de6d7d, 0h419194b0, 0hc1b6d966,
+	0h4208695c, 0h419194b0, 0hc0de6d7d, 0hc1b6d966, 0h41f50507, 0h416b8e00, 0h416b8e00, 0hc1d2a716,
+	0h3fc4b564, 0h3fc4b564, 0h3fc4b564, 0h4235739c, 0hc0024b8d, 0hc0024b8d, 0h41b8e69d, 0h421c1252,
+	0hc0024b8d, 0h41b8e69d, 0hc0024b8d, 0h421c1252, 0hc0b05c85, 0h419d18ee, 0h419d18ee, 0h420e2b7a,
+	0h41b8e69d, 0hc0024b8d, 0hc0024b8d, 0h421c1252, 0h419d18ee, 0hc0b05c85, 0h419d18ee, 0h420e2b7a,
+	0h419d18ee, 0h419d18ee, 0hc0b05c85, 0h420e2b7a, 0h418a0670, 0h418a0670, 0h418a0670, 0h4208ee18,
+	0h3fc4b564, 0h3fc4b564, 0h4235739c, 0h3fc4b564, 0hc0024b8d, 0h40024b8d, 0h421c1252, 0h41b8e69d,
+	0hc0024b8d, 0h41b8e69d, 0h421c1252, 0hc0024b8d, 0hc0b05c85, 0h419d18ee, 0h420e2b7a, 0h419d18ee,
+	0h41b8e69d, 0hc0024b8d, 0h421c1252, 0hc0024b8d, 0h419d18ee, 0hc0b05c85, 0h420e2b7a, 0h419d18ee,
+	0h419d18ee, 0h419d18ee, 0h420e2b7a, 0hc0b05c85, 0h418a0670, 0h418a0670, 0h4208ee18, 0h418a0670,
+	0h3fc4b564, 0h4235739c, 0h3fc4b564, 0h3fc4b564, 0hc0024b8d, 0h421c1252, 0hc0024b8d, 0h41b8e69d,
+	0hc0024b8d, 0h421c1252, 0h41b8e69d, 0hc0024b8d, 0hc0b05c85, 0h420e2b7a, 0h419d18ee, 0h419d18ee,
+	0h41b8e69d, 0h421c1252, 0hc0024b8d, 0hc0024b8d, 0h419d18ee, 0h420e2b7a, 0hc0b05c85, 0h419d18ee,
+	0h419d18ee, 0h420e2b7a, 0h419d18ee, 0hc0b05c85, 0h418a0670, 0h4208ee18, 0h418a0670, 0h418a0670,
+	0h4235739c, 0h3fc4b564, 0h3fc4b564, 0h3fc4b564, 0h421c1252, 0hc0024b8d, 0hc0024b8d, 0h41b8e69d,
+	0h421c1252, 0hc0024b8d, 0h41b8e69d, 0hc0024b8d, 0h420e2b7a, 0hc0b05c85, 0h419d18ee, 0h419d18ee,
+	0h421c1252, 0h41b8e69d, 0hc0024b8d, 0hc0024b8d, 0h420e2b7a, 0h419d18ee, 0hc0b05c85, 0h419d18ee,
+	0h420e2b7a, 0h419d18ee, 0h419d18ee, 0hc0b05c85, 0h4208ee18, 0h418a0670, 0h418a0670, 0h418a0670,
+	0hc1f50507, 0hc16b8e00, 0hc16b8e00, 0h41d2a716, 0hc208695c, 0hc19194b0, 0h40de6d7d, 0h41b6d966,
+	0hc208695c, 0h40de6d7d, 0hc19194b0, 0h41b6d966, 0hc22076c5, 0h406d72bf, 0h406d72bf, 0h41a58418,
+	0hc1a58418, 0hc06d72bf, 0hc06d72bf, 0h422076c5, 0hc1b6d966, 0hc0de6d7d, 0h419194b0, 0h4208695c,
+	0hc1b6d966, 0h419194b0, 0hc0de6d7d, 0h4208695c, 0hc1d2a716, 0h416b8e00, 0h416b8e00, 0h41f50507,
+	0hc1f50507, 0hc16b8e00, 0h41d2a716, 0hc16b8e00, 0hc208695c, 0hc19194b0, 0h41b6d966, 0h40de6d7d,
+	0hc208695c, 0h40de6d7d, 0h41b6d966, 0hc19194b0, 0hc22076c5, 0h406d72bf, 0h41a58418, 0h406d72bf,
+	0hc1a58418, 0hc06d72bf, 0h422076c5, 0hc06d72bf, 0hc1b6d966, 0hc0de6d7d, 0h4208695c, 0h419194b0,
+	0hc1b6d966, 0h419194b0, 0h4208695c, 0hc0de6d7d, 0hc1d2a716, 0h416b8e00, 0h41f50507, 0h416b8e00,
+	0hc1f50507, 0h41d2a716, 0hc16b8e00, 0hc16b8e00, 0hc208695c, 0h41b6d966, 0hc19194b0, 0h40de6d7d,
+	0hc208695c, 0h41b6d966, 0h40de6d7d, 0hc19194b0, 0hc22076c5, 0h41a58418, 0h406d72bf, 0h406d72bf,
+	0hc1a58418, 0h422076c5, 0hc06d72bf, 0hc06d72bf, 0hc1b6d966, 0h4208695c, 0hc0de6d7d, 0h419194b0,
+	0hc1b6d966, 0h4208695c, 0h419194b0, 0hc0de6d7d, 0hc1d2a716, 0h41f50507, 0h416b8e00, 0h416b8e00,
+	0h41d2a716, 0hc1f50507, 0hc16b8e00, 0hc16b8e00, 0h41b6d966, 0hc208695c, 0hc19194b0, 0h40de6d7d,
+	0h41b6d966, 0hc208695c, 0h40de6d7d, 0hc19194b0, 0h41a58418, 0hc22076c5, 0h406d72bf, 0h406d72bf,
+	0h422076c5, 0hc1a58418, 0hc06d72bf, 0hc06d72bf, 0h4208695c, 0hc1b6d966, 0hc0de6d7d, 0h419194b0,
+	0h4208695c, 0hc1b6d966, 0h419194b0, 0hc0de6d7d, 0h41f50507, 0hc1d2a716, 0h416b8e00, 0h416b8e00,
+}
+
+/*
+	2D Simplex noise base.
+*/
+_internal_noise_2d_unskewed_base :: proc(seed: i64, coord: Vec2) -> (value: f32) {
+	// Get base points and offsets.
+	base := [2]i64{fast_floor(coord.x), fast_floor(coord.y)}
+	i    := [2]f32{f32(coord.x - f64(base.x)), f32(coord.y - f64(base.y))}
+
+	// Prime pre-multiplication for hash.
+	bp := base * [2]i64{PRIME_X, PRIME_Y}
+
+	// Unskew.
+	t  := f32(i.x + i.y) * f32(UNSKEW_2D)
+	d0 := i + [2]f32{t, t}
+
+	// First vertex.
+	a0 := RSQUARED_2D - d0.x * d0.x - d0.y * d0.y
+	if a0 > 0 {
+		value = (a0 * a0) * (a0 * a0) * grad(seed, [2]i64{bp.x, bp.y}, d0)
+	}
+
+	// Second vertex.
+	a1 := f32(2 * (1 + 2 * UNSKEW_2D) * (1 / UNSKEW_2D + 2)) * t + f32(-2 * (1 + 2 * UNSKEW_2D) * (1 + 2 * UNSKEW_2D)) + a0
+	if a1 > 0 {
+		d1 := d0 - [2]f32{f32(1 + 2 * UNSKEW_2D), f32(1 + 2 * UNSKEW_2D)}
+		value += (a1 * a1) * (a1 * a1) * grad(seed, [2]i64{bp.x + PRIME_X, bp.y + PRIME_Y}, d1)
+	}
+
+	// Third vertex.
+	if d0.y > d0.x {
+		d2 := d0 - [2]f32{f32(UNSKEW_2D), f32(UNSKEW_2D + 1)}
+		a2 := RSQUARED_2D - d2.x * d2.x - d2.y * d2.y
+		if(a2 > 0) {
+			value += (a2 * a2) * (a2 * a2) * grad(seed, [2]i64{bp.x, bp.y + PRIME_Y}, d2)
+		}
+	} else {
+		d2 := d0 - [2]f32{f32(UNSKEW_2D + 1), f32(UNSKEW_2D)}
+		a2 := RSQUARED_2D - d2.x * d2.x - d2.y * d2.y
+		if(a2 > 0) {
+			value += (a2 * a2) * (a2 * a2) * grad(seed, [2]i64{bp.x + PRIME_X, bp.y}, d2)
+		}
+	}
+
+	return
+}
+
+
+/*
+	Generate overlapping cubic lattices for 3D OpenSimplex2 noise.
+*/
+_internal_noise_3d_unrotated_base :: proc(seed: i64, coord: Vec3) -> (value: f32) {
+	seed := seed
+	// Get base points and offsets.
+	// xr, yr, zr := coord.x, coord.y, coord.z
+
+	rb := [3]i64{fast_round(coord.x), fast_round(coord.y), fast_round(coord.z)}
+	ri := [3]f32{f32(coord.x - f64(rb.x)), f32(coord.y - f64(rb.y)), f32(coord.z - f64(rb.z))}
+
+	// -1 if positive, 1 if negative.
+	i_sign := [3]i64{i64(-1.0 - ri.x) | 1, i64(-1.0 - ri.y) | 1, i64(-1.0 - ri.z) | 1}
+	f_sign := [3]f32{f32(i_sign.x), f32(i_sign.y), f32(i_sign.z)}
+
+	// Compute absolute values, using the above as a shortcut. This was faster in my tests for some reason.
+	a0 := f_sign * -ri
+
+	// Prime pre-multiplication for hash.
+	rbp := rb * [3]i64{PRIME_X, PRIME_Y, PRIME_Z}
+
+	// Loop: Pick an edge on each lattice copy.
+	a := (RSQUARED_3D - ri.x * ri.x) - (ri.y * ri.y + ri.z * ri.z)
+
+	l := 0
+	for {
+		defer l += 1
+		
+		// Closest point on cube.
+		if a > 0 {
+			a2 := a * a; a4 := a2 * a2
+			value += a4 * grad(seed, rbp, ri)
+		}
+
+		// Second-closest point.
+		if a0.x >= a0.y && a0.x >= a0.z {
+			b := a + a0.x + a0.x
+			if b > 1 {
+				b -= 1
+				b2 := b * b; b4 := b2 * b2
+				value += b4 * grad(seed, [3]i64{rbp.x - i_sign.x * PRIME_X, rbp.y, rbp.z}, [3]f32{ri.x + f_sign.x, ri.y, ri.z})
+			}
+		} else if a0.y > a0.x && a0.y >= a0.z {
+			b := a + a0.y + a0.y
+			if b > 1 {
+				b -= 1
+				b2 := b * b; b4 := b2 * b2
+				value += b4 * grad(seed, [3]i64{rbp.x, rbp.y - i_sign.y * PRIME_Y, rbp.z}, [3]f32{ri.x, ri.y + f_sign.y, ri.z})
+			}
+		} else {
+			b := a + a0.z + a0.z
+			if b > 1 {
+				b -= 1
+				b2 := b * b; b4 := b2 * b2
+				value += b4 * grad(seed, [3]i64{rbp.x, rbp.y, rbp.z - i_sign.z * PRIME_Z}, [3]f32{ri.x, ri.y, ri.z + f_sign.z})
+			}
+		}
+
+		// Break from loop if we're done, skipping updates below.
+		if l == 1 {
+			break
+		}
+
+		// Update absolute value.
+		a0 = 0.5 - a0
+
+		// Update relative coordinate.
+		ri = a0 * f_sign
+
+		// Update falloff.
+		a += (0.75 - a0.x) - (a0.y + a0.z)
+
+		// Update prime for hash.
+		rbp += [3]i64{i_sign.x >> 1, i_sign.y >> 1, i_sign.z >> 1} & {PRIME_X, PRIME_Y, PRIME_Z}
+
+		// Update the reverse sign indicators.
+		i_sign = -i_sign
+		f_sign = -f_sign
+
+		// And finally update the seed for the other lattice copy.
+		seed ~= SEED_FLIP_3D
+	}
+
+	return value
+}
+
+/*
+	4D OpenSimplex2 noise base.
+*/
+_internal_noise_4d_unskewed_base :: proc(seed: i64, coord: Vec4) -> (value: f32) {
+	seed := seed
+
+	// Get base points and offsets
+	base := [4]i64{fast_floor(coord.x), fast_floor(coord.y), fast_floor(coord.z), fast_floor(coord.w)}
+	si   := [4]f32{f32(coord.x - f64(base.x)), f32(coord.y - f64(base.y)), f32(coord.z - f64(base.z)), f32(coord.w - f64(base.w))}
+
+	// Determine which lattice we can be confident has a contributing point its corresponding cell's base simplex.
+	// We only look at the spaces between the diagonal planes. This proved effective in all of my tests.
+	si_sum := (si.x + si.y) + (si.z + si.w)
+	starting_lattice := i64(si_sum * 1.25)
+
+	// Offset for seed based on first lattice copy.
+	seed += starting_lattice * SEED_OFFSET_4D
+
+	// Offset for lattice point relative positions (skewed)
+	starting_lattice_offset := f32(starting_lattice) * -LATTICE_STEP_4D
+	si += starting_lattice_offset
+
+	// Prep for vertex contributions.
+	ssi := (si_sum + starting_lattice_offset * 4) * UNSKEW_4D
+				
+	// Prime pre-multiplication for hash.
+	svp := base * [4]i64{PRIME_X, PRIME_Y, PRIME_Z, PRIME_W}
+
+	// Five points to add, total, from five copies of the A4 lattice.
+	for i : i64 = 0; ; i += 1 {
+		
+		// Next point is the closest vertex on the 4-simplex whose base vertex is the aforementioned vertex.
+		score := 1.0 + ssi * (-1.0 / UNSKEW_4D) // Seems slightly faster than 1.0-xsi-ysi-zsi-wsi
+		if si.x >= si.x && si.x >= si.z && si.x >= si.w && si.x >= score {
+			svp.x += PRIME_X
+			si.x -= 1
+			ssi -= UNSKEW_4D
+		}
+		else if si.y > si.x && si.y >= si.z && si.y >= si.w && si.y >= score {
+			svp.y += PRIME_Y
+			si.y -= 1
+			ssi -= UNSKEW_4D
+		}
+		else if si.z > si.x && si.z > si.y && si.z >= si.w && si.z >= score {
+			svp.z += PRIME_Z
+			si.z -= 1
+			ssi -= UNSKEW_4D
+		}
+		else if si.w > si.x && si.w > si.y && si.w > si.z && si.w >= score {
+			svp.w += PRIME_W
+			si.w -= 1
+			ssi -= UNSKEW_4D
+		}
+
+		// gradient contribution with falloff.
+		d := si + ssi
+		a := (d.x * d.x + d.y * d.y) + (d.z * d.z + d.w * d.w)
+
+		if a < RSQUARED_4D {
+			a -= RSQUARED_4D
+			a *= a; a4 := a * a
+			value += a4 * grad(seed, svp, d)
+		}
+
+		// Break from loop if we're done, skipping updates below.
+		if i == 4 {
+			break
+		}
+
+		// Update for next lattice copy shifted down by <-0.2, -0.2, -0.2, -0.2>.
+		si   += LATTICE_STEP_4D
+		ssi  += LATTICE_STEP_4D * 4 * UNSKEW_4D
+		seed -= SEED_OFFSET_4D
+
+		// Because we don't always start on the same lattice copy, there's a special reset case.
+		if i == starting_lattice {
+			svp  -= {PRIME_X, PRIME_Y, PRIME_Z, PRIME_W}
+			seed += SEED_OFFSET_4D * 5
+		}
+	}
+	return
+}
+
+/*
+	Utility functions
+*/
+@(optimization_mode="speed")
+grad_2d :: proc(seed: i64, svp: [2]i64, delta: [2]f32) -> (value: f32) {
+	hash := seed ~ svp.x ~ svp.y
+	hash *= HASH_MULTIPLIER
+	hash ~= hash >> (64 - N_GRADS_2D_EXPONENT + 1)
+
+	gi   := hash & ((N_GRADS_2D - 1) << 1)
+	return GRADIENTS_2D[gi] * delta.x + GRADIENTS_2D[gi | 1] * delta.y
+}
+
+@(optimization_mode="speed")
+grad_3d :: proc(seed: i64, rvp: [3]i64, delta: [3]f32) -> (value: f32) {
+	hash := (seed ~ rvp.x) ~ (rvp.y ~ rvp.z)
+	hash *= HASH_MULTIPLIER
+	hash ~= hash >> (64 - N_GRADS_3D_EXPONENT + 2)
+
+	gi   := hash & ((N_GRADS_3D - 1) << 2)
+	return GRADIENTS_3D[gi] * delta.x + GRADIENTS_3D[gi | 1] * delta.y + GRADIENTS_3D[gi | 2] * delta.z
+}
+
+@(optimization_mode="speed")
+grad_4d :: proc(seed: i64, svp: [4]i64, delta: [4]f32) -> (value: f32) {
+	hash := seed ~ (svp.x ~ svp.y) ~ (svp.z ~ svp.w)
+	hash *= HASH_MULTIPLIER
+	hash ~= hash >> (64 - N_GRADS_4D_EXPONENT + 2)
+
+	gi := hash & ((N_GRADS_4D - 1) << 2)
+	return (GRADIENTS_4D[gi] * delta.x + GRADIENTS_4D[gi | 1] * delta.y) + (GRADIENTS_4D[gi | 2] * delta.z + GRADIENTS_4D[gi | 3] * delta.w)
+}
+
+grad :: proc {grad_2d, grad_3d, grad_4d}
+
+@(optimization_mode="speed")
+fast_floor :: proc(x: f64) -> (floored: i64) {
+	xi := i64(x)
+	return x < f64(xi) ? xi - 1 : xi
+}
+
+@(optimization_mode="speed")
+fast_round :: proc(x: f64) -> (rounded: i64) {
+	return x < 0 ? i64(x - 0.5) : i64(x + 0.5)
+}

core/math/noise/opensimplex2.odin

@@ -0,0 +1,171 @@
+/*
+	OpenSimplex2 noise implementation.
+
+	Ported from https://github.com/KdotJPG/OpenSimplex2.
+	Copyright 2022 Yuki2 (https://github.com/NoahR02)
+*/
+package math_noise
+
+/*
+	Input coordinate vectors
+*/
+Vec2 :: [2]f64
+Vec3 :: [3]f64
+Vec4 :: [4]f64
+
+/*
+	Noise Evaluators
+*/
+
+/*
+	2D Simplex noise, standard lattice orientation.
+*/
+noise_2d :: proc(seed: i64, coord: Vec2) -> (value: f32) {
+	// Get points for A2* lattice
+	skew   := SKEW_2D * (coord.x + coord.y)
+	skewed := coord + skew
+
+	return _internal_noise_2d_unskewed_base(seed, skewed)
+}
+
+/*
+	2D Simplex noise, with Y pointing down the main diagonal.
+	Might be better for a 2D sandbox style game, where Y is vertical.
+	Probably slightly less optimal for heightmaps or continent maps,
+	unless your map is centered around an equator. It's a subtle
+	difference, but the option is here to make it an easy choice.
+*/
+noise_2d_improve_x :: proc(seed: i64, coord: Vec2) -> (value: f32) {
+	// Skew transform and rotation baked into one.
+	xx := coord.x * ROOT_2_OVER_2
+	yy := coord.y * (ROOT_2_OVER_2 * (1 + 2 * SKEW_2D))
+	return _internal_noise_2d_unskewed_base(seed, Vec2{yy + xx, yy - xx})
+}
+
+
+/*
+	3D OpenSimplex2 noise, with better visual isotropy in (X, Y).
+	Recommended for 3D terrain and time-varied animations.
+	The Z coordinate should always be the "different" coordinate in whatever your use case is.
+	If Y is vertical in world coordinates, call `noise_3d_improve_xz(x, z, Y)` or use `noise_3d_xz_before_y`.
+	If Z is vertical in world coordinates, call `noise_3d_improve_xz(x, y, Z)`.
+	For a time varied animation, call `noise_3d_improve_xz(x, y, T)`.
+*/
+noise_3d_improve_xy :: proc(seed: i64, coord: Vec3) -> (value: f32) {
+	/*
+		Re-orient the cubic lattices without skewing, so Z points up the main lattice diagonal,
+		and the planes formed by XY are moved far out of alignment with the cube faces.
+		Orthonormal rotation. Not a skew transform.
+	*/
+	xy := coord.x + coord.y
+	s2 := xy * ROTATE_3D_ORTHOGONALIZER
+	zz := coord.z * ROOT_3_OVER_3
+
+	r := Vec3{coord.x + s2 + zz, coord.y + s2 + zz, xy * -ROOT_3_OVER_3 + zz}
+
+	// Evaluate both lattices to form a BCC lattice.
+	return _internal_noise_3d_unrotated_base(seed, r)
+}
+
+/*
+	3D OpenSimplex2 noise, with better visual isotropy in (X, Z).
+	Recommended for 3D terrain and time-varied animations.
+	The Y coordinate should always be the "different" coordinate in whatever your use case is.
+	If Y is vertical in world coordinates, call `noise_3d_improve_xz(x, Y, z)`.
+	If Z is vertical in world coordinates, call `noise_3d_improve_xz(x, Z, y)` or use `noise_3d_improve_xy`.
+	For a time varied animation, call `noise_3d_improve_xz(x, T, y)` or use `noise_3d_improve_xy`.
+*/
+noise_3d_improve_xz :: proc(seed: i64, coord: Vec3) -> (value: f32) {
+	/*
+		Re-orient the cubic lattices without skewing, so Y points up the main lattice diagonal,
+		and the planes formed by XZ are moved far out of alignment with the cube faces.
+		Orthonormal rotation. Not a skew transform.
+	*/
+	xz := coord.x + coord.z
+	s2 := xz * ROTATE_3D_ORTHOGONALIZER
+	yy := coord.y * ROOT_3_OVER_3
+
+	r := Vec3{coord.x + s2 + yy, xz * -ROOT_3_OVER_3 + yy, coord.z + s2 + yy}
+	
+	// Evaluate both lattices to form a BCC lattice.
+	return _internal_noise_3d_unrotated_base(seed, r)
+}
+
+/*
+	3D OpenSimplex2 noise, fallback rotation option
+	Use `noise_3d_improve_xy` or `noise_3d_improve_xz` instead, wherever appropriate.
+	They have less diagonal bias. This function's best use is as a fallback.
+*/
+noise_3d_fallback :: proc(seed: i64, coord: Vec3) -> (value: f32) {
+	/*
+		Re-orient the cubic lattices via rotation, to produce a familiar look.
+		Orthonormal rotation. Not a skew transform.
+	*/
+	bias   := FALLBACK_ROTATE_3D * (coord.x + coord.y + coord.z)
+	biased := bias - coord
+	// Evaluate both lattices to form a BCC lattice.
+	return _internal_noise_3d_unrotated_base(seed, biased)
+}
+
+
+/*
+	4D OpenSimplex2 noise, with XYZ oriented like `noise_3d_improve_xy`
+	and W for an extra degree of freedom. W repeats eventually.
+	Recommended for time-varied animations which texture a 3D object (W=time)
+	in a space where Z is vertical.
+*/
+noise_4d_improve_xyz_improve_xy :: proc(seed: i64, coord: Vec4) -> (value: f32) {
+	xy := coord.x + coord.y
+	s2 := xy * -0.21132486540518699998
+	zz := coord.z * 0.28867513459481294226
+	ww := coord.w * 0.2236067977499788
+
+	xr, yr : f64 = coord.x + (zz + ww + s2), coord.y + (zz + ww + s2)
+	zr : f64 = xy * -0.57735026918962599998 + (zz + ww)
+	wr : f64 = coord.z * -0.866025403784439 + ww
+
+	return _internal_noise_4d_unskewed_base(seed, Vec4{xr, yr, zr, wr})
+}
+
+/*
+	4D OpenSimplex2 noise, with XYZ oriented like `noise_3d_improve_xz`
+	and W for an extra degree of freedom. W repeats eventually.
+	Recommended for time-varied animations which texture a 3D object (W=time)
+	in a space where Y is vertical.
+*/
+noise_4d_improve_xyz_improve_xz :: proc(seed: i64, coord: Vec4) -> (value: f32) {
+	xz := coord.x + coord.z
+	s2 := xz * -0.21132486540518699998
+	yy := coord.y * 0.28867513459481294226
+	ww := coord.w * 0.2236067977499788
+
+	xr, zr : f64 = coord.x + (yy + ww + s2), coord.z + (yy + ww + s2)
+	yr := xz * -0.57735026918962599998 + (yy + ww)
+	wr := coord.y * -0.866025403784439 + ww
+
+	return _internal_noise_4d_unskewed_base(seed, Vec4{xr, yr, zr, wr})
+}
+
+/*
+	4D OpenSimplex2 noise, with XYZ oriented like `noise_3d_fallback`
+	and W for an extra degree of freedom. W repeats eventually.
+	Recommended for time-varied animations which texture a 3D object (W=time)
+	where there isn't a clear distinction between horizontal and vertical
+*/
+noise_4d_improve_xyz :: proc(seed: i64, coord: Vec4) -> (value: f32) {
+	xyz := coord.x + coord.y + coord.z
+	ww  := coord.w * 0.2236067977499788
+	s2  := xyz * -0.16666666666666666 + ww
+
+	skewed := Vec4{coord.x + s2, coord.y + s2, coord.z + s2, -0.5 * xyz + ww}
+	return _internal_noise_4d_unskewed_base(seed, skewed)
+}
+
+/*
+	4D OpenSimplex2 noise, fallback lattice orientation.
+*/
+noise_4d_fallback :: proc(seed: i64, coord: Vec4) -> (value: f32) {
+	// Get points for A4 lattice
+	skew := f64(SKEW_4D) * (coord.x + coord.y + coord.z + coord.w)
+	return _internal_noise_4d_unskewed_base(seed, coord + skew)
+}

core/math/rand/rand.odin

@@ -1,5 +1,7 @@
 package rand
 
+import "core:intrinsics"
+
 Rand :: struct {
 	state: u64,
 	inc:   u64,
@@ -7,9 +9,7 @@ Rand :: struct {
 
 
 @(private)
-_GLOBAL_SEED_DATA := 1234567890
-@(private)
-global_rand := create(u64(uintptr(&_GLOBAL_SEED_DATA)))
+global_rand := create(u64(intrinsics.read_cycle_counter()))
 
 set_global_seed :: proc(seed: u64) {
 	init(&global_rand, seed)

core/mem/allocators.odin

@@ -6,7 +6,24 @@ import "core:runtime"
 nil_allocator_proc :: proc(allocator_data: rawptr, mode: Allocator_Mode,
                            size, alignment: int,
                            old_memory: rawptr, old_size: int, loc := #caller_location) -> ([]byte, Allocator_Error) {
-	return nil, nil
+	switch mode {
+	case .Alloc:
+		return nil, .Out_Of_Memory
+	case .Free:
+		return nil, .None
+	case .Free_All:
+		return nil, .Mode_Not_Implemented
+	case .Resize:
+		if size == 0 {
+			return nil, .None
+		}
+		return nil, .Out_Of_Memory
+	case .Query_Features:
+		return nil, .Mode_Not_Implemented
+	case .Query_Info:
+		return nil, .Mode_Not_Implemented
+	}
+	return nil, .None
 }
 
 nil_allocator :: proc() -> Allocator {

core/mem/doc.odin

@@ -0,0 +1,34 @@
+/*
+package mem implements various types of allocators.
+
+
+An example of how to use the `Tracking_Allocator` to track subsequent allocations
+in your program and report leaks and bad frees:
+
+```odin
+package foo
+
+import "core:mem"
+import "core:fmt"
+
+_main :: proc() {
+	do stuff
+}
+
+main :: proc() {
+	track: mem.Tracking_Allocator
+	mem.tracking_allocator_init(&track, context.allocator)
+	context.allocator = mem.tracking_allocator(&track)
+
+	_main()
+
+	for _, leak in track.allocation_map {
+		fmt.printf("%v leaked %v bytes\n", leak.location, leak.size)
+	}
+	for bad_free in track.bad_free_array {
+		fmt.printf("%v allocation %p was freed badly\n", bad_free.location, bad_free.memory)
+	}
+}
+```
+*/
+package mem

core/mem/mem.odin

@@ -16,7 +16,7 @@ zero_explicit :: proc "contextless" (data: rawptr, len: int) -> rawptr {
 	// equivalent semantics to those provided by the C11 Annex K 3.7.4.1
 	// memset_s call.
 	intrinsics.mem_zero_volatile(data, len) // Use the volatile mem_zero
-	intrinsics.atomic_fence() // Prevent reordering
+	intrinsics.atomic_thread_fence(.Seq_Cst) // Prevent reordering
 	return data
 }
 zero_item :: proc "contextless" (item: $P/^$T) {

core/mem/virtual/virtual.odin

@@ -6,25 +6,25 @@ DEFAULT_PAGE_SIZE := uint(4096)
 
 Allocator_Error :: mem.Allocator_Error
 
-reserve :: proc(size: uint) -> (data: []byte, err: Allocator_Error) {
+reserve :: proc "contextless" (size: uint) -> (data: []byte, err: Allocator_Error) {
 	return _reserve(size)
 }
 
-commit :: proc(data: rawptr, size: uint) -> Allocator_Error {
+commit :: proc "contextless" (data: rawptr, size: uint) -> Allocator_Error {
 	return _commit(data, size)
 }
 
-reserve_and_commit :: proc(size: uint) -> (data: []byte, err: Allocator_Error) {
+reserve_and_commit :: proc "contextless" (size: uint) -> (data: []byte, err: Allocator_Error) {
 	data = reserve(size) or_return
 	commit(raw_data(data), size) or_return
 	return
 }
 
-decommit :: proc(data: rawptr, size: uint) {
+decommit :: proc "contextless" (data: rawptr, size: uint) {
 	_decommit(data, size)
 }
 
-release :: proc(data: rawptr, size: uint) {
+release :: proc "contextless" (data: rawptr, size: uint) {
 	_release(data, size)
 }
 
@@ -36,7 +36,7 @@ Protect_Flag :: enum u32 {
 Protect_Flags :: distinct bit_set[Protect_Flag; u32]
 Protect_No_Access :: Protect_Flags{}
 
-protect :: proc(data: rawptr, size: uint, flags: Protect_Flags) -> bool {
+protect :: proc "contextless" (data: rawptr, size: uint, flags: Protect_Flags) -> bool {
 	return _protect(data, size, flags)
 }
 
@@ -82,11 +82,13 @@ memory_block_alloc :: proc(committed, reserved: uint, flags: Memory_Block_Flags)
 	pmblock := platform_memory_alloc(0, total_size) or_return
 	
 	pmblock.block.base = ([^]byte)(uintptr(pmblock) + base_offset)
-	commit(pmblock.block.base, committed) or_return
+	commit_err := platform_memory_commit(pmblock, uint(base_offset) + committed)
+	assert(commit_err == nil)
+
 	// Should be zeroed
 	assert(pmblock.block.used == 0)
 	assert(pmblock.block.prev == nil)	
-	if (do_protection) {
+	if do_protection {
 		protect(rawptr(uintptr(pmblock) + protect_offset), page_size, Protect_No_Access)
 	}
 	
@@ -105,7 +107,7 @@ memory_block_alloc :: proc(committed, reserved: uint, flags: Memory_Block_Flags)
 }
 
 alloc_from_memory_block :: proc(block: ^Memory_Block, min_size, alignment: int) -> (data: []byte, err: Allocator_Error) {
-	calc_alignment_offset :: proc(block: ^Memory_Block, alignment: uintptr) -> uint {
+	calc_alignment_offset :: proc "contextless" (block: ^Memory_Block, alignment: uintptr) -> uint {
 		alignment_offset := uint(0)
 		ptr := uintptr(block.base[block.used:])
 		mask := alignment-1
@@ -115,23 +117,37 @@ alloc_from_memory_block :: proc(block: ^Memory_Block, min_size, alignment: int)
 		return alignment_offset
 		
 	}
-	
+	do_commit_if_necessary :: proc(block: ^Memory_Block, size: uint) -> (err: Allocator_Error) {
+		if block.committed - block.used < size {
+			pmblock := (^Platform_Memory_Block)(block)
+			base_offset := uint(uintptr(block) - uintptr(pmblock))
+			platform_total_commit := base_offset + block.used + size
+
+			assert(pmblock.committed <= pmblock.reserved)
+			assert(pmblock.committed < platform_total_commit)
+
+			platform_memory_commit(pmblock, platform_total_commit) or_return
+
+			pmblock.committed = platform_total_commit
+			block.committed = pmblock.committed - base_offset
+		}
+		return nil
+	}
+
+
 	alignment_offset := calc_alignment_offset(block, uintptr(alignment))
-	
 	size := uint(min_size) + alignment_offset
-	
+
 	if block.used + size > block.reserved {
 		err = .Out_Of_Memory
 		return
 	}
-	
-	ptr := block.base[block.used:]
-	ptr = ptr[alignment_offset:]
-	
+	assert(block.committed <= block.reserved)
+	do_commit_if_necessary(block, size) or_return
+
+	data = block.base[block.used+alignment_offset:][:min_size]
 	block.used += size
-	assert(block.used <= block.reserved)
-	
-	return ptr[:min_size], nil	
+	return
 }
 
 

core/mem/virtual/virtual_linux.odin

@@ -58,7 +58,7 @@ madvise :: proc "contextless" (addr: rawptr, length: uint, advice: c.int) -> c.i
 }
 
 
-_reserve :: proc(size: uint) -> (data: []byte, err: Allocator_Error) {
+_reserve :: proc "contextless" (size: uint) -> (data: []byte, err: Allocator_Error) {
 	MAP_FAILED := rawptr(~uintptr(0))
 	result := mmap(nil, size, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0)
 	if result == MAP_FAILED {
@@ -67,7 +67,7 @@ _reserve :: proc(size: uint) -> (data: []byte, err: Allocator_Error) {
 	return ([^]byte)(result)[:size], nil
 }
 
-_commit :: proc(data: rawptr, size: uint) -> Allocator_Error {
+_commit :: proc "contextless" (data: rawptr, size: uint) -> Allocator_Error {
 	result := mprotect(data, size, PROT_READ|PROT_WRITE)
 	if result != 0 {
 		// TODO(bill): Handle error value correctly
@@ -75,14 +75,14 @@ _commit :: proc(data: rawptr, size: uint) -> Allocator_Error {
 	}
 	return nil
 }
-_decommit :: proc(data: rawptr, size: uint) {
+_decommit :: proc "contextless" (data: rawptr, size: uint) {
 	mprotect(data, size, PROT_NONE)
 	madvise(data, size, MADV_FREE)
 }
-_release :: proc(data: rawptr, size: uint) {
+_release :: proc "contextless" (data: rawptr, size: uint) {
 	munmap(data, size)
 }
-_protect :: proc(data: rawptr, size: uint, flags: Protect_Flags) -> bool {
+_protect :: proc "contextless" (data: rawptr, size: uint, flags: Protect_Flags) -> bool {
 	pflags: c.int
 	pflags = PROT_NONE
 	if .Read    in flags { pflags |= PROT_READ  }

core/mem/virtual/virtual_platform.odin

@@ -1,15 +1,16 @@
 //+private
 package mem_virtual
 
-import sync "core:sync/sync2"
+import "core:sync"
 
 Platform_Memory_Block :: struct {
-	block:    Memory_Block,
-	reserved: uint,
+	block:      Memory_Block,
+	committed:  uint,
+	reserved:   uint,
 	prev, next: ^Platform_Memory_Block,
 } 
 
-platform_memory_alloc :: proc(to_commit, to_reserve: uint) -> (block: ^Platform_Memory_Block, err: Allocator_Error) {
+platform_memory_alloc :: proc "contextless" (to_commit, to_reserve: uint) -> (block: ^Platform_Memory_Block, err: Allocator_Error) {
 	to_commit, to_reserve := to_commit, to_reserve
 	to_reserve = max(to_commit, to_reserve)
 	
@@ -20,12 +21,13 @@ platform_memory_alloc :: proc(to_commit, to_reserve: uint) -> (block: ^Platform_
 	commit(raw_data(data), to_commit)
 	
 	block = (^Platform_Memory_Block)(raw_data(data))
-	block.reserved = to_reserve
+	block.committed = to_commit
+	block.reserved  = to_reserve
 	return
 }
 
 
-platform_memory_free :: proc(block: ^Platform_Memory_Block) {
+platform_memory_free :: proc "contextless" (block: ^Platform_Memory_Block) {
 	if block != nil {
 		release(block, block.reserved)
 	}
@@ -52,3 +54,17 @@ platform_memory_init :: proc() {
 		global_platform_memory_block_sentinel_set = true
 	}
 }
+
+platform_memory_commit :: proc "contextless" (block: ^Platform_Memory_Block, to_commit: uint) -> (err: Allocator_Error) {
+	if to_commit < block.committed {
+		return nil
+	}
+	if to_commit > block.reserved {
+		return .Out_Of_Memory
+	}
+
+
+	commit(block, to_commit) or_return
+	block.committed = to_commit
+	return nil
+}

core/mem/virtual/virtual_windows.odin

@@ -62,7 +62,7 @@ foreign Kernel32 {
 }
 
 
-_reserve :: proc(size: uint) -> (data: []byte, err: Allocator_Error) {
+_reserve :: proc "contextless" (size: uint) -> (data: []byte, err: Allocator_Error) {
 	result := VirtualAlloc(nil, size, MEM_RESERVE, PAGE_READWRITE)
 	if result == nil {
 		err = .Out_Of_Memory
@@ -72,7 +72,7 @@ _reserve :: proc(size: uint) -> (data: []byte, err: Allocator_Error) {
 	return
 }
 
-_commit :: proc(data: rawptr, size: uint) -> Allocator_Error {
+_commit :: proc "contextless" (data: rawptr, size: uint) -> Allocator_Error {
 	result := VirtualAlloc(data, size, MEM_COMMIT, PAGE_READWRITE)
 	if result == nil {
 		switch err := GetLastError(); err {
@@ -85,13 +85,13 @@ _commit :: proc(data: rawptr, size: uint) -> Allocator_Error {
 	}
 	return nil
 }
-_decommit :: proc(data: rawptr, size: uint) {
+_decommit :: proc "contextless" (data: rawptr, size: uint) {
 	VirtualFree(data, size, MEM_DECOMMIT)
 }
-_release :: proc(data: rawptr, size: uint) {
+_release :: proc "contextless" (data: rawptr, size: uint) {
 	VirtualFree(data, 0, MEM_RELEASE)
 }
-_protect :: proc(data: rawptr, size: uint, flags: Protect_Flags) -> bool {
+_protect :: proc "contextless" (data: rawptr, size: uint, flags: Protect_Flags) -> bool {
 	pflags: u32
 	pflags = PAGE_NOACCESS
 	switch flags {

core/odin/ast/ast.odin

@@ -34,7 +34,7 @@ Node :: struct {
 	pos:         tokenizer.Pos,
 	end:         tokenizer.Pos,
 	state_flags: Node_State_Flags,
-	derived:     any,
+	derived:     Any_Node,
 }
 
 Comment_Group :: struct {
@@ -88,9 +88,11 @@ File :: struct {
 
 Expr :: struct {
 	using expr_base: Node,
+	derived_expr: Any_Expr,
 }
 Stmt :: struct {
 	using stmt_base: Node,
+	derived_stmt: Any_Stmt,
 }
 Decl :: struct {
 	using decl_base: Stmt,
@@ -151,6 +153,7 @@ Comp_Lit :: struct {
 	open: tokenizer.Pos,
 	elems: []^Expr,
 	close: tokenizer.Pos,
+	tag: ^Expr,
 }
 
 
@@ -540,7 +543,7 @@ unparen_expr :: proc(expr: ^Expr) -> (val: ^Expr) {
 		return
 	}
 	for {
-		e, ok := val.derived.(Paren_Expr)
+		e, ok := val.derived.(^Paren_Expr)
 		if !ok || e.expr == nil {
 			break
 		}
@@ -705,13 +708,19 @@ Struct_Type :: struct {
 	name_count:    int,
 }
 
+Union_Type_Kind :: enum u8 {
+	Normal,
+	maybe,
+	no_nil,
+	shared_nil,
+}
+
 Union_Type :: struct {
 	using node: Expr,
 	tok_pos:       tokenizer.Pos,
 	poly_params:   ^Field_List,
 	align:         ^Expr,
-	is_maybe:      bool,
-	is_no_nil:     bool,
+	kind:          Union_Type_Kind,
 	where_token:   tokenizer.Token,
 	where_clauses: []^Expr,
 	variants:      []^Expr,
@@ -757,4 +766,173 @@ Matrix_Type :: struct {
 	row_count:    ^Expr,
 	column_count: ^Expr,
 	elem:         ^Expr,
-}
+}
+
+
+Any_Node :: union {
+	^Package,
+	^File,
+	^Comment_Group,
+
+	^Bad_Expr,
+	^Ident,
+	^Implicit,
+	^Undef,
+	^Basic_Lit,
+	^Basic_Directive,
+	^Ellipsis,
+	^Proc_Lit,
+	^Comp_Lit,
+	^Tag_Expr,
+	^Unary_Expr,
+	^Binary_Expr,
+	^Paren_Expr,
+	^Selector_Expr,
+	^Implicit_Selector_Expr,
+	^Selector_Call_Expr,
+	^Index_Expr,
+	^Deref_Expr,
+	^Slice_Expr,
+	^Matrix_Index_Expr,
+	^Call_Expr,
+	^Field_Value,
+	^Ternary_If_Expr,
+	^Ternary_When_Expr,
+	^Or_Else_Expr,
+	^Or_Return_Expr,
+	^Type_Assertion,
+	^Type_Cast,
+	^Auto_Cast,
+	^Inline_Asm_Expr,
+
+	^Proc_Group,
+
+	^Typeid_Type,
+	^Helper_Type,
+	^Distinct_Type,
+	^Poly_Type,
+	^Proc_Type,
+	^Pointer_Type,
+	^Multi_Pointer_Type,
+	^Array_Type,
+	^Dynamic_Array_Type,
+	^Struct_Type,
+	^Union_Type,
+	^Enum_Type,
+	^Bit_Set_Type,
+	^Map_Type,
+	^Relative_Type,
+	^Matrix_Type,
+
+	^Bad_Stmt,
+	^Empty_Stmt,
+	^Expr_Stmt,
+	^Tag_Stmt,
+	^Assign_Stmt,
+	^Block_Stmt,
+	^If_Stmt,
+	^When_Stmt,
+	^Return_Stmt,
+	^Defer_Stmt,
+	^For_Stmt,
+	^Range_Stmt,
+	^Inline_Range_Stmt,
+	^Case_Clause,
+	^Switch_Stmt,
+	^Type_Switch_Stmt,
+	^Branch_Stmt,
+	^Using_Stmt,
+
+	^Bad_Decl,
+	^Value_Decl,
+	^Package_Decl,
+	^Import_Decl,
+	^Foreign_Block_Decl,
+	^Foreign_Import_Decl,
+
+	^Attribute,
+	^Field,
+	^Field_List,
+}
+
+
+Any_Expr :: union {
+	^Bad_Expr,
+	^Ident,
+	^Implicit,
+	^Undef,
+	^Basic_Lit,
+	^Basic_Directive,
+	^Ellipsis,
+	^Proc_Lit,
+	^Comp_Lit,
+	^Tag_Expr,
+	^Unary_Expr,
+	^Binary_Expr,
+	^Paren_Expr,
+	^Selector_Expr,
+	^Implicit_Selector_Expr,
+	^Selector_Call_Expr,
+	^Index_Expr,
+	^Deref_Expr,
+	^Slice_Expr,
+	^Matrix_Index_Expr,
+	^Call_Expr,
+	^Field_Value,
+	^Ternary_If_Expr,
+	^Ternary_When_Expr,
+	^Or_Else_Expr,
+	^Or_Return_Expr,
+	^Type_Assertion,
+	^Type_Cast,
+	^Auto_Cast,
+	^Inline_Asm_Expr,
+
+	^Proc_Group,
+
+	^Typeid_Type,
+	^Helper_Type,
+	^Distinct_Type,
+	^Poly_Type,
+	^Proc_Type,
+	^Pointer_Type,
+	^Multi_Pointer_Type,
+	^Array_Type,
+	^Dynamic_Array_Type,
+	^Struct_Type,
+	^Union_Type,
+	^Enum_Type,
+	^Bit_Set_Type,
+	^Map_Type,
+	^Relative_Type,
+	^Matrix_Type,
+}
+
+
+Any_Stmt :: union {
+	^Bad_Stmt,
+	^Empty_Stmt,
+	^Expr_Stmt,
+	^Tag_Stmt,
+	^Assign_Stmt,
+	^Block_Stmt,
+	^If_Stmt,
+	^When_Stmt,
+	^Return_Stmt,
+	^Defer_Stmt,
+	^For_Stmt,
+	^Range_Stmt,
+	^Inline_Range_Stmt,
+	^Case_Clause,
+	^Switch_Stmt,
+	^Type_Switch_Stmt,
+	^Branch_Stmt,
+	^Using_Stmt,
+
+	^Bad_Decl,
+	^Value_Decl,
+	^Package_Decl,
+	^Import_Decl,
+	^Foreign_Block_Decl,
+	^Foreign_Import_Decl,
+}

core/odin/ast/clone.odin

@@ -1,16 +1,25 @@
 package odin_ast
 
+import "core:intrinsics"
 import "core:mem"
 import "core:fmt"
+import "core:reflect"
 import "core:odin/tokenizer"
+_ :: intrinsics
 
 new :: proc($T: typeid, pos, end: tokenizer.Pos) -> ^T {
 	n, _ := mem.new(T)
 	n.pos = pos
 	n.end = end
-	n.derived = n^
+	n.derived = n
 	base: ^Node = n // dummy check
 	_ = base // "Use" type to make -vet happy
+	when intrinsics.type_has_field(T, "derived_expr") {
+		n.derived_expr = n
+	}
+	when intrinsics.type_has_field(T, "derived_stmt") {
+		n.derived_stmt = n
+	}
 	return n
 }
 
@@ -59,232 +68,257 @@ clone_node :: proc(node: ^Node) -> ^Node {
 		return nil
 	}
 
-	size := size_of(Node)
+	size  := size_of(Node)
 	align := align_of(Node)
-	ti := type_info_of(node.derived.id)
+	ti := reflect.union_variant_type_info(node.derived)
 	if ti != nil {
-		size = ti.size
-		align = ti.align
+		elem := ti.variant.(reflect.Type_Info_Pointer).elem
+		size  = elem.size
+		align = elem.align
 	}
 
-	switch in node.derived {
-	case Package, File:
+	#partial switch in node.derived {
+	case ^Package, ^File:
 		panic("Cannot clone this node type")
 	}
 
 	res := cast(^Node)mem.alloc(size, align)
 	src: rawptr = node
 	if node.derived != nil {
-		src = node.derived.data
+		src = (^rawptr)(&node.derived)^
 	}
 	mem.copy(res, src, size)
-	res.derived.data = rawptr(res)
-	res.derived.id = node.derived.id
+	res_ptr_any: any
+	res_ptr_any.data = &res
+	res_ptr_any.id = ti.id
 
-	switch r in &res.derived {
-	case Bad_Expr:
-	case Ident:
-	case Implicit:
-	case Undef:
-	case Basic_Lit:
+	reflect.set_union_value(res.derived, res_ptr_any)
 
-	case Ellipsis:
+	res_ptr := reflect.deref(res_ptr_any)
+
+	if de := reflect.struct_field_value_by_name(res_ptr, "derived_expr", true); de != nil {
+		reflect.set_union_value(de, res_ptr_any)
+	}
+	if ds := reflect.struct_field_value_by_name(res_ptr, "derived_stmt", true); ds != nil {
+		reflect.set_union_value(ds, res_ptr_any)
+	}
+
+	if res.derived != nil do switch r in res.derived {
+	case ^Package, ^File:
+	case ^Bad_Expr:
+	case ^Ident:
+	case ^Implicit:
+	case ^Undef:
+	case ^Basic_Lit:
+	case ^Basic_Directive:
+	case ^Comment_Group:
+
+	case ^Ellipsis:
 		r.expr = clone(r.expr)
-	case Proc_Lit:
+	case ^Proc_Lit:
 		r.type = auto_cast clone(r.type)
 		r.body = clone(r.body)
-	case Comp_Lit:
+	case ^Comp_Lit:
 		r.type  = clone(r.type)
 		r.elems = clone(r.elems)
 
-	case Tag_Expr:
+	case ^Tag_Expr:
 		r.expr = clone(r.expr)
-	case Unary_Expr:
+	case ^Unary_Expr:
 		r.expr = clone(r.expr)
-	case Binary_Expr:
+	case ^Binary_Expr:
 		r.left  = clone(r.left)
 		r.right = clone(r.right)
-	case Paren_Expr:
+	case ^Paren_Expr:
 		r.expr = clone(r.expr)
-	case Selector_Expr:
+	case ^Selector_Expr:
 		r.expr = clone(r.expr)
 		r.field = auto_cast clone(r.field)
-	case Implicit_Selector_Expr:
+	case ^Implicit_Selector_Expr:
 		r.field = auto_cast clone(r.field)
-	case Selector_Call_Expr:
+	case ^Selector_Call_Expr:
 		r.expr = clone(r.expr)
 		r.call = auto_cast clone(r.call)
-	case Index_Expr:
+	case ^Index_Expr:
 		r.expr = clone(r.expr)
 		r.index = clone(r.index)
-	case Matrix_Index_Expr:
+	case ^Matrix_Index_Expr:
 		r.expr = clone(r.expr)
 		r.row_index = clone(r.row_index)
 		r.column_index = clone(r.column_index)
-	case Deref_Expr:
+	case ^Deref_Expr:
 		r.expr = clone(r.expr)
-	case Slice_Expr:
+	case ^Slice_Expr:
 		r.expr = clone(r.expr)
 		r.low  = clone(r.low)
 		r.high = clone(r.high)
-	case Call_Expr:
+	case ^Call_Expr:
 		r.expr = clone(r.expr)
 		r.args = clone(r.args)
-	case Field_Value:
+	case ^Field_Value:
 		r.field = clone(r.field)
 		r.value = clone(r.value)
-	case Ternary_If_Expr:
+	case ^Ternary_If_Expr:
 		r.x    = clone(r.x)
 		r.cond = clone(r.cond)
 		r.y    = clone(r.y)
-	case Ternary_When_Expr:
+	case ^Ternary_When_Expr:
 		r.x    = clone(r.x)
 		r.cond = clone(r.cond)
 		r.y    = clone(r.y)
-	case Or_Else_Expr:
+	case ^Or_Else_Expr:
 		r.x    = clone(r.x)
 		r.y    = clone(r.y)
-	case Or_Return_Expr:
+	case ^Or_Return_Expr:
 		r.expr = clone(r.expr)
-	case Type_Assertion:
+	case ^Type_Assertion:
 		r.expr = clone(r.expr)
 		r.type = clone(r.type)
-	case Type_Cast:
+	case ^Type_Cast:
 		r.type = clone(r.type)
 		r.expr = clone(r.expr)
-	case Auto_Cast:
+	case ^Auto_Cast:
 		r.expr = clone(r.expr)
-	case Inline_Asm_Expr:
+	case ^Inline_Asm_Expr:
 		r.param_types        = clone(r.param_types)
 		r.return_type        = clone(r.return_type)
 		r.constraints_string = clone(r.constraints_string)
 		r.asm_string         = clone(r.asm_string)
 
-	case Bad_Stmt:
+	case ^Bad_Stmt:
 		// empty
-	case Empty_Stmt:
+	case ^Empty_Stmt:
 		// empty
-	case Expr_Stmt:
+	case ^Expr_Stmt:
 		r.expr = clone(r.expr)
-	case Tag_Stmt:
+	case ^Tag_Stmt:
 		r.stmt = clone(r.stmt)
 
-	case Assign_Stmt:
+	case ^Assign_Stmt:
 		r.lhs = clone(r.lhs)
 		r.rhs = clone(r.rhs)
-	case Block_Stmt:
+	case ^Block_Stmt:
 		r.label = clone(r.label)
 		r.stmts = clone(r.stmts)
-	case If_Stmt:
+	case ^If_Stmt:
 		r.label     = clone(r.label)
 		r.init      = clone(r.init)
 		r.cond      = clone(r.cond)
 		r.body      = clone(r.body)
 		r.else_stmt = clone(r.else_stmt)
-	case When_Stmt:
+	case ^When_Stmt:
 		r.cond      = clone(r.cond)
 		r.body      = clone(r.body)
 		r.else_stmt = clone(r.else_stmt)
-	case Return_Stmt:
+	case ^Return_Stmt:
 		r.results = clone(r.results)
-	case Defer_Stmt:
+	case ^Defer_Stmt:
 		r.stmt = clone(r.stmt)
-	case For_Stmt:
+	case ^For_Stmt:
 		r.label = clone(r.label)
 		r.init = clone(r.init)
 		r.cond = clone(r.cond)
 		r.post = clone(r.post)
 		r.body = clone(r.body)
-	case Range_Stmt:
+	case ^Range_Stmt:
 		r.label = clone(r.label)
 		r.vals = clone(r.vals)
 		r.expr = clone(r.expr)
 		r.body = clone(r.body)
-	case Case_Clause:
+	case ^Inline_Range_Stmt:
+		r.label = clone(r.label)
+		r.val0 = clone(r.val0)
+		r.val1 = clone(r.val1)
+		r.expr = clone(r.expr)
+		r.body = clone(r.body)
+	case ^Case_Clause:
 		r.list = clone(r.list)
 		r.body = clone(r.body)
-	case Switch_Stmt:
+	case ^Switch_Stmt:
 		r.label = clone(r.label)
 		r.init = clone(r.init)
 		r.cond = clone(r.cond)
 		r.body = clone(r.body)
-	case Type_Switch_Stmt:
+	case ^Type_Switch_Stmt:
 		r.label = clone(r.label)
 		r.tag  = clone(r.tag)
 		r.expr = clone(r.expr)
 		r.body = clone(r.body)
-	case Branch_Stmt:
+	case ^Branch_Stmt:
 		r.label = auto_cast clone(r.label)
-	case Using_Stmt:
+	case ^Using_Stmt:
 		r.list = clone(r.list)
-	case Bad_Decl:
-	case Value_Decl:
+	case ^Bad_Decl:
+	case ^Value_Decl:
 		r.attributes = clone(r.attributes)
 		r.names      = clone(r.names)
 		r.type       = clone(r.type)
 		r.values     = clone(r.values)
-	case Package_Decl:
-	case Import_Decl:
-	case Foreign_Block_Decl:
+	case ^Package_Decl:
+	case ^Import_Decl:
+	case ^Foreign_Block_Decl:
 		r.attributes      = clone(r.attributes)
 		r.foreign_library = clone(r.foreign_library)
 		r.body            = clone(r.body)
-	case Foreign_Import_Decl:
+	case ^Foreign_Import_Decl:
 		r.name = auto_cast clone(r.name)
-	case Proc_Group:
+	case ^Proc_Group:
 		r.args = clone(r.args)
-	case Attribute:
+	case ^Attribute:
 		r.elems = clone(r.elems)
-	case Field:
+	case ^Field:
 		r.names         = clone(r.names)
 		r.type          = clone(r.type)
 		r.default_value = clone(r.default_value)
-	case Field_List:
+	case ^Field_List:
 		r.list = clone(r.list)
-	case Typeid_Type:
+	case ^Typeid_Type:
 		r.specialization = clone(r.specialization)
-	case Helper_Type:
+	case ^Helper_Type:
 		r.type = clone(r.type)
-	case Distinct_Type:
+	case ^Distinct_Type:
 		r.type = clone(r.type)
-	case Poly_Type:
+	case ^Poly_Type:
 		r.type = auto_cast clone(r.type)
 		r.specialization = clone(r.specialization)
-	case Proc_Type:
+	case ^Proc_Type:
 		r.params  = auto_cast clone(r.params)
 		r.results = auto_cast clone(r.results)
-	case Pointer_Type:
+	case ^Pointer_Type:
 		r.elem = clone(r.elem)
-	case Multi_Pointer_Type:
+	case ^Multi_Pointer_Type:
 		r.elem = clone(r.elem)
-	case Array_Type:
+	case ^Array_Type:
 		r.len  = clone(r.len)
 		r.elem = clone(r.elem)
-	case Dynamic_Array_Type:
+	case ^Dynamic_Array_Type:
 		r.elem = clone(r.elem)
-	case Struct_Type:
+	case ^Struct_Type:
 		r.poly_params = auto_cast clone(r.poly_params)
 		r.align = clone(r.align)
 		r.fields = auto_cast clone(r.fields)
-	case Union_Type:
+	case ^Union_Type:
 		r.poly_params = auto_cast clone(r.poly_params)
 		r.align = clone(r.align)
 		r.variants = clone(r.variants)
-	case Enum_Type:
+	case ^Enum_Type:
 		r.base_type = clone(r.base_type)
 		r.fields = clone(r.fields)
-	case Bit_Set_Type:
+	case ^Bit_Set_Type:
 		r.elem = clone(r.elem)
 		r.underlying = clone(r.underlying)
-	case Map_Type:
+	case ^Map_Type:
 		r.key = clone(r.key)
 		r.value = clone(r.value)
-	case Matrix_Type:
+	case ^Matrix_Type:
 		r.row_count = clone(r.row_count)
 		r.column_count = clone(r.column_count)
 		r.elem = clone(r.elem)
+	case ^Relative_Type:
+		r.tag = clone(r.tag)
+		r.type = clone(r.type)
 	case:
-		fmt.panicf("Unhandled node kind: %T", r)
+		fmt.panicf("Unhandled node kind: %v", r)
 	}
 
 	return res

core/odin/ast/walk.odin

@@ -52,71 +52,74 @@ walk :: proc(v: ^Visitor, node: ^Node) {
 		}
 	}
 
-
 	v := v
+	if v == nil || node == nil {
+		return
+	}
+
 	if v = v->visit(node); v == nil {
 		return
 	}
 
 	switch n in &node.derived {
-	case File:
+	case ^File:
 		if n.docs != nil {
 			walk(v, n.docs)
 		}
 		walk_stmt_list(v, n.decls[:])
-	case Package:
+	case ^Package:
 		for _, f in n.files {
 			walk(v, f)
 		}
 
-	case Comment_Group:
+	case ^Comment_Group:
 		// empty
-	case Bad_Expr:
-	case Ident:
-	case Implicit:
-	case Undef:
-	case Basic_Lit:
-	case Basic_Directive:
-	case Ellipsis:
+	case ^Bad_Expr:
+	case ^Ident:
+	case ^Implicit:
+	case ^Undef:
+	case ^Basic_Lit:
+	case ^Basic_Directive:
+	case ^Ellipsis:
 		if n.expr != nil {
 			walk(v, n.expr)
 		}
-	case Proc_Lit:
+	case ^Proc_Lit:
 		walk(v, n.type)
 		walk(v, n.body)
 		walk_expr_list(v, n.where_clauses)
-	case Comp_Lit:
+	case ^Comp_Lit:
 		if n.type != nil {
 			walk(v, n.type)
 		}
 		walk_expr_list(v, n.elems)
-	case Tag_Expr:
+	case ^Tag_Expr:
 		walk(v, n.expr)
-	case Unary_Expr:
+	case ^Unary_Expr:
 		walk(v, n.expr)
-	case Binary_Expr:
+	case ^Binary_Expr:
 		walk(v, n.left)
 		walk(v, n.right)
-	case Paren_Expr:
+	case ^Paren_Expr:
 		walk(v, n.expr)
-	case Selector_Expr:
+	case ^Selector_Expr:
 		walk(v, n.expr)
 		walk(v, n.field)
-	case Implicit_Selector_Expr:
+	case ^Implicit_Selector_Expr:
 		walk(v, n.field)
-	case Selector_Call_Expr:
+	case ^Selector_Call_Expr:
 		walk(v, n.expr)
 		walk(v, n.call)
-	case Index_Expr:
+	case ^Index_Expr:
 		walk(v, n.expr)
 		walk(v, n.index)
-	case Matrix_Index_Expr:
+	case ^Matrix_Index_Expr:
 		walk(v, n.expr)
 		walk(v, n.row_index)
 		walk(v, n.column_index)
-	case Deref_Expr:
+	case ^Deref_Expr:
 		walk(v, n.expr)
-	case Slice_Expr:
+	case ^Slice_Expr:
 		walk(v, n.expr)
 		if n.low != nil {
 			walk(v, n.low)
@@ -124,57 +127,57 @@ walk :: proc(v: ^Visitor, node: ^Node) {
 		if n.high != nil {
 			walk(v, n.high)
 		}
-	case Call_Expr:
+	case ^Call_Expr:
 		walk(v, n.expr)
 		walk_expr_list(v, n.args)
-	case Field_Value:
+	case ^Field_Value:
 		walk(v, n.field)
 		walk(v, n.value)
-	case Ternary_If_Expr:
+	case ^Ternary_If_Expr:
 		walk(v, n.x)
 		walk(v, n.cond)
 		walk(v, n.y)
-	case Ternary_When_Expr:
+	case ^Ternary_When_Expr:
 		walk(v, n.x)
 		walk(v, n.cond)
 		walk(v, n.y)
-	case Or_Else_Expr:
+	case ^Or_Else_Expr:
 		walk(v, n.x)
 		walk(v, n.y)
-	case Or_Return_Expr:
+	case ^Or_Return_Expr:
 		walk(v, n.expr)
-	case Type_Assertion:
+	case ^Type_Assertion:
 		walk(v, n.expr)
 		if n.type != nil {
 			walk(v, n.type)
 		}
-	case Type_Cast:
+	case ^Type_Cast:
 		walk(v, n.type)
 		walk(v, n.expr)
-	case Auto_Cast:
+	case ^Auto_Cast:
 		walk(v, n.expr)
-	case Inline_Asm_Expr:
+	case ^Inline_Asm_Expr:
 		walk_expr_list(v, n.param_types)
 		walk(v, n.return_type)
 		walk(v, n.constraints_string)
 		walk(v, n.asm_string)
 
 
-	case Bad_Stmt:
-	case Empty_Stmt:
-	case Expr_Stmt:
+	case ^Bad_Stmt:
+	case ^Empty_Stmt:
+	case ^Expr_Stmt:
 		walk(v, n.expr)
-	case Tag_Stmt:
+	case ^Tag_Stmt:
 		walk(v, n.stmt)
-	case Assign_Stmt:
+	case ^Assign_Stmt:
 		walk_expr_list(v, n.lhs)
 		walk_expr_list(v, n.rhs)
-	case Block_Stmt:
+	case ^Block_Stmt:
 		if n.label != nil {
 			walk(v, n.label)
 		}
 		walk_stmt_list(v, n.stmts)
-	case If_Stmt:
+	case ^If_Stmt:
 		if n.label != nil {
 			walk(v, n.label)
 		}
@@ -186,17 +189,17 @@ walk :: proc(v: ^Visitor, node: ^Node) {
 		if n.else_stmt != nil {
 			walk(v, n.else_stmt)
 		}
-	case When_Stmt:
+	case ^When_Stmt:
 		walk(v, n.cond)
 		walk(v, n.body)
 		if n.else_stmt != nil {
 			walk(v, n.else_stmt)
 		}
-	case Return_Stmt:
+	case ^Return_Stmt:
 		walk_expr_list(v, n.results)
-	case Defer_Stmt:
+	case ^Defer_Stmt:
 		walk(v, n.stmt)
-	case For_Stmt:
+	case ^For_Stmt:
 		if n.label != nil {
 			walk(v, n.label)
 		}
@@ -210,7 +213,7 @@ walk :: proc(v: ^Visitor, node: ^Node) {
 			walk(v, n.post)
 		}
 		walk(v, n.body)
-	case Range_Stmt:
+	case ^Range_Stmt:
 		if n.label != nil {
 			walk(v, n.label)
 		}
@@ -221,7 +224,7 @@ walk :: proc(v: ^Visitor, node: ^Node) {
 		}
 		walk(v, n.expr)
 		walk(v, n.body)
-	case Inline_Range_Stmt:
+	case ^Inline_Range_Stmt:
 		if n.label != nil {
 			walk(v, n.label)
 		}
@@ -233,10 +236,10 @@ walk :: proc(v: ^Visitor, node: ^Node) {
 		}
 		walk(v, n.expr)
 		walk(v, n.body)
-	case Case_Clause:
+	case ^Case_Clause:
 		walk_expr_list(v, n.list)
 		walk_stmt_list(v, n.body)
-	case Switch_Stmt:
+	case ^Switch_Stmt:
 		if n.label != nil {
 			walk(v, n.label)
 		}
@@ -247,7 +250,7 @@ walk :: proc(v: ^Visitor, node: ^Node) {
 			walk(v, n.cond)
 		}
 		walk(v, n.body)
-	case Type_Switch_Stmt:
+	case ^Type_Switch_Stmt:
 		if n.label != nil {
 			walk(v, n.label)
 		}
@@ -258,16 +261,16 @@ walk :: proc(v: ^Visitor, node: ^Node) {
 			walk(v, n.expr)
 		}
 		walk(v, n.body)
-	case Branch_Stmt:
+	case ^Branch_Stmt:
 		if n.label != nil {
 			walk(v, n.label)
 		}
-	case Using_Stmt:
+	case ^Using_Stmt:
 		walk_expr_list(v, n.list)
 
 
-	case Bad_Decl:
-	case Value_Decl:
+	case ^Bad_Decl:
+	case ^Value_Decl:
 		if n.docs != nil {
 			walk(v, n.docs)
 		}
@@ -280,21 +283,21 @@ walk :: proc(v: ^Visitor, node: ^Node) {
 		if n.comment != nil {
 			walk(v, n.comment)
 		}
-	case Package_Decl:
+	case ^Package_Decl:
 		if n.docs != nil {
 			walk(v, n.docs)
 		}
 		if n.comment != nil {
 			walk(v, n.comment)
 		}
-	case Import_Decl:
+	case ^Import_Decl:
 		if n.docs != nil {
 			walk(v, n.docs)
 		}
 		if n.comment != nil {
 			walk(v, n.comment)
 		}
-	case Foreign_Block_Decl:
+	case ^Foreign_Block_Decl:
 		if n.docs != nil {
 			walk(v, n.docs)
 		}
@@ -303,7 +306,7 @@ walk :: proc(v: ^Visitor, node: ^Node) {
 			walk(v, n.foreign_library)
 		}
 		walk(v, n.body)
-	case Foreign_Import_Decl:
+	case ^Foreign_Import_Decl:
 		if n.docs != nil {
 			walk(v, n.docs)
 		}
@@ -313,11 +316,11 @@ walk :: proc(v: ^Visitor, node: ^Node) {
 			walk(v, n.comment)
 		}
 
-	case Proc_Group:
+	case ^Proc_Group:
 		walk_expr_list(v, n.args)
-	case Attribute:
+	case ^Attribute:
 		walk_expr_list(v, n.elems)
-	case Field:
+	case ^Field:
 		if n.docs != nil {
 			walk(v, n.docs)
 		}
@@ -331,31 +334,31 @@ walk :: proc(v: ^Visitor, node: ^Node) {
 		if n.comment != nil {
 			walk(v, n.comment)
 		}
-	case Field_List:
+	case ^Field_List:
 		for x in n.list {
 			walk(v, x)
 		}
-	case Typeid_Type:
+	case ^Typeid_Type:
 		if n.specialization != nil {
 			walk(v, n.specialization)
 		}
-	case Helper_Type:
+	case ^Helper_Type:
 		walk(v, n.type)
-	case Distinct_Type:
+	case ^Distinct_Type:
 		walk(v, n.type)
-	case Poly_Type:
+	case ^Poly_Type:
 		walk(v, n.type)
 		if n.specialization != nil {
 			walk(v, n.specialization)
 		}
-	case Proc_Type:
+	case ^Proc_Type:
 		walk(v, n.params)
 		walk(v, n.results)
-	case Pointer_Type:
+	case ^Pointer_Type:
 		walk(v, n.elem)
-	case Multi_Pointer_Type:
+	case ^Multi_Pointer_Type:
 		walk(v, n.elem)
-	case Array_Type:
+	case ^Array_Type:
 		if n.tag != nil {
 			walk(v, n.tag)
 		}
@@ -363,12 +366,12 @@ walk :: proc(v: ^Visitor, node: ^Node) {
 			walk(v, n.len)
 		}
 		walk(v, n.elem)
-	case Dynamic_Array_Type:
+	case ^Dynamic_Array_Type:
 		if n.tag != nil {
 			walk(v, n.tag)
 		}
 		walk(v, n.elem)
-	case Struct_Type:
+	case ^Struct_Type:
 		if n.poly_params != nil {
 			walk(v, n.poly_params)
 		}
@@ -377,7 +380,7 @@ walk :: proc(v: ^Visitor, node: ^Node) {
 		}
 		walk_expr_list(v, n.where_clauses)
 		walk(v, n.fields)
-	case Union_Type:
+	case ^Union_Type:
 		if n.poly_params != nil {
 			walk(v, n.poly_params)
 		}
@@ -386,23 +389,23 @@ walk :: proc(v: ^Visitor, node: ^Node) {
 		}
 		walk_expr_list(v, n.where_clauses)
 		walk_expr_list(v, n.variants)
-	case Enum_Type:
+	case ^Enum_Type:
 		if n.base_type != nil {
 			walk(v, n.base_type)
 		}
 		walk_expr_list(v, n.fields)
-	case Bit_Set_Type:
+	case ^Bit_Set_Type:
 		walk(v, n.elem)
 		if n.underlying != nil {
 			walk(v, n.underlying)
 		}
-	case Map_Type:
+	case ^Map_Type:
 		walk(v, n.key)
 		walk(v, n.value)
-	case Relative_Type:
+	case ^Relative_Type:
 		walk(v, n.tag)
 		walk(v, n.type)
-	case Matrix_Type:
+	case ^Matrix_Type:
 		walk(v, n.row_count)
 		walk(v, n.column_count)
 		walk(v, n.elem)

core/odin/parser/parser.odin

@@ -195,10 +195,10 @@ parse_file :: proc(p: ^Parser, file: ^ast.File) -> bool {
 	for p.curr_tok.kind != .EOF {
 		stmt := parse_stmt(p)
 		if stmt != nil {
-			if _, ok := stmt.derived.(ast.Empty_Stmt); !ok {
+			if _, ok := stmt.derived.(^ast.Empty_Stmt); !ok {
 				append(&p.file.decls, stmt)
-				if es, es_ok := stmt.derived.(ast.Expr_Stmt); es_ok && es.expr != nil {
-					if _, pl_ok := es.expr.derived.(ast.Proc_Lit); pl_ok {
+				if es, es_ok := stmt.derived.(^ast.Expr_Stmt); es_ok && es.expr != nil {
+					if _, pl_ok := es.expr.derived.(^ast.Proc_Lit); pl_ok {
 						error(p, stmt.pos, "procedure literal evaluated but not used")
 					}
 				}
@@ -428,9 +428,21 @@ expect_closing_brace_of_field_list :: proc(p: ^Parser) -> tokenizer.Token {
 		str := tokenizer.token_to_string(token)
 		error(p, end_of_line_pos(p, p.prev_tok), "expected a comma, got %s", str)
 	}
-	return expect_token(p, .Close_Brace)
+	expect_brace := expect_token(p, .Close_Brace)
+
+	if expect_brace.kind != .Close_Brace {
+		for p.curr_tok.kind != .Close_Brace && p.curr_tok.kind != .EOF && !is_non_inserted_semicolon(p.curr_tok) {
+			advance_token(p)
+		}
+		return p.curr_tok
+	} 
+
+	return expect_brace
 }
 
+is_non_inserted_semicolon :: proc(tok: tokenizer.Token) -> bool {
+	return tok.kind == .Semicolon && tok.text != "\n"
+}
 
 is_blank_ident :: proc{
 	is_blank_ident_string,
@@ -447,7 +459,7 @@ is_blank_ident_token :: proc(tok: tokenizer.Token) -> bool {
 	return false
 }
 is_blank_ident_node :: proc(node: ^ast.Node) -> bool {
-	if ident, ok := node.derived.(ast.Ident); ok {
+	if ident, ok := node.derived.(^ast.Ident); ok {
 		return is_blank_ident(ident.name)
 	}
 	return true
@@ -490,34 +502,34 @@ is_semicolon_optional_for_node :: proc(p: ^Parser, node: ^ast.Node) -> bool {
 		return true
 	}
 
-	switch n in node.derived {
-	case ast.Empty_Stmt, ast.Block_Stmt:
+	#partial switch n in node.derived {
+	case ^ast.Empty_Stmt, ^ast.Block_Stmt:
 		return true
 
-	case ast.If_Stmt, ast.When_Stmt,
-	     ast.For_Stmt, ast.Range_Stmt, ast.Inline_Range_Stmt,
-	     ast.Switch_Stmt, ast.Type_Switch_Stmt:
+	case ^ast.If_Stmt, ^ast.When_Stmt,
+	     ^ast.For_Stmt, ^ast.Range_Stmt, ^ast.Inline_Range_Stmt,
+	     ^ast.Switch_Stmt, ^ast.Type_Switch_Stmt:
 		return true
 
-	case ast.Helper_Type:
+	case ^ast.Helper_Type:
 		return is_semicolon_optional_for_node(p, n.type)
-	case ast.Distinct_Type:
+	case ^ast.Distinct_Type:
 		return is_semicolon_optional_for_node(p, n.type)
-	case ast.Pointer_Type:
+	case ^ast.Pointer_Type:
 		return is_semicolon_optional_for_node(p, n.elem)
-	case ast.Struct_Type, ast.Union_Type, ast.Enum_Type:
+	case ^ast.Struct_Type, ^ast.Union_Type, ^ast.Enum_Type:
 		// Require semicolon within a procedure body
 		return p.curr_proc == nil
-	case ast.Proc_Lit:
+	case ^ast.Proc_Lit:
 		return true
 
-	case ast.Package_Decl, ast.Import_Decl, ast.Foreign_Import_Decl:
+	case ^ast.Package_Decl, ^ast.Import_Decl, ^ast.Foreign_Import_Decl:
 		return true
 
-	case ast.Foreign_Block_Decl:
+	case ^ast.Foreign_Block_Decl:
 		return is_semicolon_optional_for_node(p, n.body)
 
-	case ast.Value_Decl:
+	case ^ast.Value_Decl:
 		if n.is_mutable {
 			return false
 		}
@@ -629,10 +641,10 @@ parse_stmt_list :: proc(p: ^Parser) -> []^ast.Stmt {
 	    p.curr_tok.kind != .EOF  {
 		stmt := parse_stmt(p)
 		if stmt != nil {
-			if _, ok := stmt.derived.(ast.Empty_Stmt); !ok {
+			if _, ok := stmt.derived.(^ast.Empty_Stmt); !ok {
 				append(&list, stmt)
-				if es, es_ok := stmt.derived.(ast.Expr_Stmt); es_ok && es.expr != nil {
-					if _, pl_ok := es.expr.derived.(ast.Proc_Lit); pl_ok {
+				if es, es_ok := stmt.derived.(^ast.Expr_Stmt); es_ok && es.expr != nil {
+					if _, pl_ok := es.expr.derived.(^ast.Proc_Lit); pl_ok {
 						error(p, stmt.pos, "procedure literal evaluated but not used")
 					}
 				}
@@ -710,7 +722,7 @@ convert_stmt_to_expr :: proc(p: ^Parser, stmt: ^ast.Stmt, kind: string) -> ^ast.
 	if stmt == nil {
 		return nil
 	}
-	if es, ok := stmt.derived.(ast.Expr_Stmt); ok {
+	if es, ok := stmt.derived.(^ast.Expr_Stmt); ok {
 		return es.expr
 	}
 	error(p, stmt.pos, "expected %s, found a simple statement", kind)
@@ -852,7 +864,7 @@ parse_for_stmt :: proc(p: ^Parser) -> ^ast.Stmt {
 
 		if p.curr_tok.kind != .Semicolon {
 			cond = parse_simple_stmt(p, {Stmt_Allow_Flag.In})
-			if as, ok := cond.derived.(ast.Assign_Stmt); ok && as.op.kind == .In {
+			if as, ok := cond.derived.(^ast.Assign_Stmt); ok && as.op.kind == .In {
 				is_range = true
 			}
 		}
@@ -894,7 +906,7 @@ parse_for_stmt :: proc(p: ^Parser) -> ^ast.Stmt {
 
 
 	if is_range {
-		assign_stmt := cond.derived.(ast.Assign_Stmt)
+		assign_stmt := cond.derived.(^ast.Assign_Stmt)
 		vals := assign_stmt.lhs[:]
 
 		rhs: ^ast.Expr
@@ -975,7 +987,7 @@ parse_switch_stmt :: proc(p: ^Parser) -> ^ast.Stmt {
 			tag = as
 		} else {
 			tag = parse_simple_stmt(p, {Stmt_Allow_Flag.In})
-			if as, ok := tag.derived.(ast.Assign_Stmt); ok && as.op.kind == .In {
+			if as, ok := tag.derived.(^ast.Assign_Stmt); ok && as.op.kind == .In {
 				is_type_switch = true
 			} else if parse_control_statement_semicolon_separator(p) {
 				init = tag
@@ -1062,14 +1074,14 @@ parse_attribute :: proc(p: ^Parser, tok: tokenizer.Token, open_kind, close_kind:
 	skip_possible_newline(p)
 
 	decl := parse_stmt(p)
-	switch d in &decl.derived {
-	case ast.Value_Decl:
+	#partial switch d in decl.derived_stmt {
+	case ^ast.Value_Decl:
 		if d.docs == nil { d.docs = docs }
 		append(&d.attributes, attribute)
-	case ast.Foreign_Block_Decl:
+	case ^ast.Foreign_Block_Decl:
 		if d.docs == nil { d.docs = docs }
 		append(&d.attributes, attribute)
-	case ast.Foreign_Import_Decl:
+	case ^ast.Foreign_Import_Decl:
 		if d.docs == nil { d.docs = docs }
 		append(&d.attributes, attribute)
 	case:
@@ -1083,11 +1095,11 @@ parse_attribute :: proc(p: ^Parser, tok: tokenizer.Token, open_kind, close_kind:
 
 parse_foreign_block_decl :: proc(p: ^Parser) -> ^ast.Stmt {
 	decl := parse_stmt(p)
-	switch in decl.derived {
-	case ast.Empty_Stmt, ast.Bad_Stmt, ast.Bad_Decl:
+	#partial switch in decl.derived_stmt {
+	case ^ast.Empty_Stmt, ^ast.Bad_Stmt, ^ast.Bad_Decl:
 		// Ignore
 		return nil
-	case ast.When_Stmt, ast.Value_Decl:
+	case ^ast.When_Stmt, ^ast.Value_Decl:
 		return decl
 	}
 
@@ -1291,13 +1303,13 @@ parse_stmt :: proc(p: ^Parser) -> ^ast.Stmt {
 	case .Defer:
 		tok := advance_token(p)
 		stmt := parse_stmt(p)
-		switch s in stmt.derived {
-		case ast.Empty_Stmt:
+		#partial switch s in stmt.derived_stmt {
+		case ^ast.Empty_Stmt:
 			error(p, s.pos, "empty statement after defer (e.g. ';')")
-		case ast.Defer_Stmt:
+		case ^ast.Defer_Stmt:
 			error(p, s.pos, "you cannot defer a defer statement")
 			stmt = s.stmt
-		case ast.Return_Stmt:
+		case ^ast.Return_Stmt:
 			error(p, s.pos, "you cannot defer a return statement")
 		}
 		ds := ast.new(ast.Defer_Stmt, tok.pos, stmt.end)
@@ -1312,7 +1324,7 @@ parse_stmt :: proc(p: ^Parser) -> ^ast.Stmt {
 		}
 
 		results: [dynamic]^ast.Expr
-		for p.curr_tok.kind != .Semicolon {
+		for p.curr_tok.kind != .Semicolon && p.curr_tok.kind != .Close_Brace {
 			result := parse_expr(p, false)
 			append(&results, result)
 			if p.curr_tok.kind != .Comma ||
@@ -1369,8 +1381,8 @@ parse_stmt :: proc(p: ^Parser) -> ^ast.Stmt {
 		expect_token_after(p, .Colon, "identifier list")
 		decl := parse_value_decl(p, list, docs)
 		if decl != nil {
-			switch d in &decl.derived {
-			case ast.Value_Decl:
+			#partial switch d in decl.derived_stmt {
+			case ^ast.Value_Decl:
 				d.is_using = true
 				return decl
 			}
@@ -1401,9 +1413,9 @@ parse_stmt :: proc(p: ^Parser) -> ^ast.Stmt {
 			return stmt
 		case "partial":
 			stmt := parse_stmt(p)
-			switch s in &stmt.derived {
-			case ast.Switch_Stmt:      s.partial = true
-			case ast.Type_Switch_Stmt: s.partial = true
+			#partial switch s in stmt.derived_stmt {
+			case ^ast.Switch_Stmt:      s.partial = true
+			case ^ast.Type_Switch_Stmt: s.partial = true
 			case: error(p, stmt.pos, "#partial can only be applied to a switch statement")
 			}
 			return stmt
@@ -1548,11 +1560,11 @@ parse_body :: proc(p: ^Parser) -> ^ast.Block_Stmt {
 }
 
 convert_stmt_to_body :: proc(p: ^Parser, stmt: ^ast.Stmt) -> ^ast.Stmt {
-	switch s in stmt.derived {
-	case ast.Block_Stmt:
+	#partial switch s in stmt.derived_stmt {
+	case ^ast.Block_Stmt:
 		error(p, stmt.pos, "expected a normal statement rather than a block statement")
 		return stmt
-	case ast.Empty_Stmt:
+	case ^ast.Empty_Stmt:
 		error(p, stmt.pos, "expected a non-empty statement")
 	}
 
@@ -1629,10 +1641,10 @@ convert_to_ident_list :: proc(p: ^Parser, list: []Expr_And_Flags, ignore_flags,
 
 		id: ^ast.Expr = ident.expr
 
-		switch n in ident.expr.derived {
-		case ast.Ident:
-		case ast.Bad_Expr:
-		case ast.Poly_Type:
+		#partial switch n in ident.expr.derived_expr {
+		case ^ast.Ident:
+		case ^ast.Bad_Expr:
+		case ^ast.Poly_Type:
 			if allow_poly_names {
 				if n.specialization == nil {
 					break
@@ -1794,21 +1806,21 @@ check_procedure_name_list :: proc(p: ^Parser, names: []^ast.Expr) -> bool {
 		return false
 	}
 
-	_, first_is_polymorphic := names[0].derived.(ast.Poly_Type)
+	_, first_is_polymorphic := names[0].derived.(^ast.Poly_Type)
 	any_polymorphic_names := first_is_polymorphic
 
 	for i := 1; i < len(names); i += 1 {
 		name := names[i]
 
 		if first_is_polymorphic {
-			if _, ok := name.derived.(ast.Poly_Type); ok {
+			if _, ok := name.derived.(^ast.Poly_Type); ok {
 				any_polymorphic_names = true
 			} else {
 				error(p, name.pos, "mixture of polymorphic and non-polymorphic identifiers")
 				return any_polymorphic_names
 			}
 		} else {
-			if _, ok := name.derived.(ast.Poly_Type); ok {
+			if _, ok := name.derived.(^ast.Poly_Type); ok {
 				any_polymorphic_names = true
 				error(p, name.pos, "mixture of polymorphic and non-polymorphic identifiers")
 				return any_polymorphic_names
@@ -1873,7 +1885,7 @@ parse_field_list :: proc(p: ^Parser, follow: tokenizer.Token_Kind, allowed_flags
 			if type == nil {
 				return false
 			}
-			_, ok := type.derived.(ast.Ellipsis)
+			_, ok := type.derived.(^ast.Ellipsis)
 			return ok
 		}
 
@@ -1891,7 +1903,7 @@ parse_field_list :: proc(p: ^Parser, follow: tokenizer.Token_Kind, allowed_flags
 			type = parse_var_type(p, allowed_flags)
 			tt := ast.unparen_expr(type)
 			if is_signature && !any_polymorphic_names {
-				if ti, ok := tt.derived.(ast.Typeid_Type); ok && ti.specialization != nil {
+				if ti, ok := tt.derived.(^ast.Typeid_Type); ok && ti.specialization != nil {
 					error(p, tt.pos, "specialization of typeid is not allowed without polymorphic names")
 				}
 			}
@@ -1967,7 +1979,7 @@ parse_field_list :: proc(p: ^Parser, follow: tokenizer.Token_Kind, allowed_flags
 	    p.curr_tok.kind != .EOF {
 		prefix_flags := parse_field_prefixes(p)
 		param := parse_var_type(p, allowed_flags & {.Typeid_Token, .Ellipsis})
-		if _, ok := param.derived.(ast.Ellipsis); ok {
+		if _, ok := param.derived.(^ast.Ellipsis); ok {
 			if seen_ellipsis {
 				error(p, param.pos, "extra variadic parameter after ellipsis")
 			}
@@ -1994,8 +2006,8 @@ parse_field_list :: proc(p: ^Parser, follow: tokenizer.Token_Kind, allowed_flags
 
 			names := make([]^ast.Expr, 1)
 			names[0] = ast.new(ast.Ident, tok.pos, end_pos(tok))
-			switch ident in &names[0].derived {
-			case ast.Ident:
+			#partial switch ident in names[0].derived_expr {
+			case ^ast.Ident:
 				ident.name = tok.text
 			case:
 				unreachable()
@@ -2125,12 +2137,12 @@ parse_proc_type :: proc(p: ^Parser, tok: tokenizer.Token) -> ^ast.Proc_Type {
 
 	loop: for param in params.list {
 		if param.type != nil {
-			if _, ok := param.type.derived.(ast.Poly_Type); ok {
+			if _, ok := param.type.derived.(^ast.Poly_Type); ok {
 				is_generic = true
 				break loop
 			}
 			for name in param.names {
-				if _, ok := name.derived.(ast.Poly_Type); ok {
+				if _, ok := name.derived.(^ast.Poly_Type); ok {
 					is_generic = true
 					break loop
 				}
@@ -2167,13 +2179,13 @@ parse_inlining_operand :: proc(p: ^Parser, lhs: bool, tok: tokenizer.Token) -> ^
 		}
 	}
 
-	switch e in &ast.unparen_expr(expr).derived {
-	case ast.Proc_Lit:
+	#partial switch e in ast.unparen_expr(expr).derived_expr {
+	case ^ast.Proc_Lit:
 		if e.inlining != .None && e.inlining != pi {
 			error(p, expr.pos, "both 'inline' and 'no_inline' cannot be applied to a procedure literal")
 		}
 		e.inlining = pi
-	case ast.Call_Expr:
+	case ^ast.Call_Expr:
 		if e.inlining != .None && e.inlining != pi {
 			error(p, expr.pos, "both 'inline' and 'no_inline' cannot be applied to a procedure call")
 		}
@@ -2264,22 +2276,40 @@ parse_operand :: proc(p: ^Parser, lhs: bool) -> ^ast.Expr {
 			bd.name = name.text
 			original_type := parse_type(p)
 			type := ast.unparen_expr(original_type)
-			switch t in &type.derived {
-			case ast.Array_Type:         t.tag = bd
-			case ast.Dynamic_Array_Type: t.tag = bd
+			#partial switch t in type.derived_expr {
+			case ^ast.Array_Type:         t.tag = bd
+			case ^ast.Dynamic_Array_Type: t.tag = bd
 			case:
 				error(p, original_type.pos, "expected an array type after #%s", name.text)
 			}
 			return original_type
 
 		case "partial":
+			tag := ast.new(ast.Basic_Directive, tok.pos, end_pos(name))
+			tag.tok = tok
+			tag.name = name.text
+			original_expr := parse_expr(p, lhs)
+			expr := ast.unparen_expr(original_expr)
+			#partial switch t in expr.derived_expr {
+			case ^ast.Comp_Lit:
+				t.tag = tag
+			case ^ast.Array_Type:
+				t.tag = tag
+				error(p, tok.pos, "#%s has been replaced with #sparse for non-contiguous enumerated array types", name.text)
+			case:
+				error(p, tok.pos, "expected a compound literal after #%s", name.text)
+
+			}
+			return original_expr
+
+		case "sparse":
 			tag := ast.new(ast.Basic_Directive, tok.pos, end_pos(name))
 			tag.tok = tok
 			tag.name = name.text
 			original_type := parse_type(p)
 			type := ast.unparen_expr(original_type)
-			switch t in &type.derived {
-			case ast.Array_Type:
+			#partial switch t in type.derived_expr {
+			case ^ast.Array_Type:
 				t.tag = tag
 			case:
 				error(p, tok.pos, "expected an enumerated array type after #%s", name.text)
@@ -2319,7 +2349,7 @@ parse_operand :: proc(p: ^Parser, lhs: bool) -> ^ast.Expr {
 			return rt
 
 		case "force_inline", "force_no_inline":
-			return parse_inlining_operand(p, lhs, tok)
+			return parse_inlining_operand(p, lhs, name)
 		case:
 			expr := parse_expr(p, lhs)
 			te := ast.new(ast.Tag_Expr, tok.pos, expr.pos)
@@ -2600,8 +2630,9 @@ parse_operand :: proc(p: ^Parser, lhs: bool) -> ^ast.Expr {
 		tok := expect_token(p, .Union)
 		poly_params: ^ast.Field_List
 		align:       ^ast.Expr
-		is_maybe:    bool
-		is_no_nil:   bool
+		is_maybe:      bool
+		is_no_nil:     bool
+		is_shared_nil: bool
 
 		if allow_token(p, .Open_Paren) {
 			param_count: int
@@ -2633,12 +2664,34 @@ parse_operand :: proc(p: ^Parser, lhs: bool) -> ^ast.Expr {
 					error(p, tag.pos, "duplicate union tag '#%s'", tag.text)
 				}
 				is_no_nil = true
+			case "shared_nil":
+				if is_shared_nil {
+					error(p, tag.pos, "duplicate union tag '#%s'", tag.text)
+				}
+				is_shared_nil = true
 			case:
 				error(p, tag.pos, "invalid union tag '#%s", tag.text)
 			}
 		}
 		p.expr_level = prev_level
 
+		if is_no_nil && is_maybe {
+			error(p, p.curr_tok.pos, "#maybe and #no_nil cannot be applied together")
+		}
+		if is_no_nil && is_shared_nil {
+			error(p, p.curr_tok.pos, "#shared_nil and #no_nil cannot be applied together")
+		}
+		if is_shared_nil && is_maybe {
+			error(p, p.curr_tok.pos, "#maybe and #shared_nil cannot be applied together")
+		}
+
+		union_kind := ast.Union_Type_Kind.Normal
+		switch {
+		case is_maybe:      union_kind = .maybe
+		case is_no_nil:     union_kind = .no_nil
+		case is_shared_nil: union_kind = .shared_nil
+		}
+
 		where_token: tokenizer.Token
 		where_clauses: []^ast.Expr
 
@@ -2659,7 +2712,7 @@ parse_operand :: proc(p: ^Parser, lhs: bool) -> ^ast.Expr {
 		variants: [dynamic]^ast.Expr
 		for p.curr_tok.kind != .Close_Brace && p.curr_tok.kind != .EOF {
 			type := parse_type(p)
-			if _, ok := type.derived.(ast.Bad_Expr); !ok {
+			if _, ok := type.derived.(^ast.Bad_Expr); !ok {
 				append(&variants, type)
 			}
 			if !allow_token(p, .Comma) {
@@ -2669,14 +2722,15 @@ parse_operand :: proc(p: ^Parser, lhs: bool) -> ^ast.Expr {
 
 		close := expect_closing_brace_of_field_list(p)
 
+
+
 		ut := ast.new(ast.Union_Type, tok.pos, end_pos(close))
 		ut.poly_params   = poly_params
 		ut.variants      = variants[:]
 		ut.align         = align
 		ut.where_token   = where_token
 		ut.where_clauses = where_clauses
-		ut.is_maybe      = is_maybe
-		ut.is_no_nil     = is_no_nil
+		ut.kind          = union_kind
 
 		return ut
 
@@ -2834,19 +2888,19 @@ is_literal_type :: proc(expr: ^ast.Expr) -> bool {
 	if val == nil {
 		return false
 	}
-	switch _ in val.derived {
-	case ast.Bad_Expr,
-		ast.Ident,
-		ast.Selector_Expr,
-		ast.Array_Type,
-		ast.Struct_Type,
-		ast.Union_Type,
-		ast.Enum_Type,
-		ast.Dynamic_Array_Type,
-		ast.Map_Type,
-		ast.Bit_Set_Type,
-		ast.Matrix_Type,
-		ast.Call_Expr:
+	#partial switch _ in val.derived_expr {
+	case ^ast.Bad_Expr,
+		^ast.Ident,
+		^ast.Selector_Expr,
+		^ast.Array_Type,
+		^ast.Struct_Type,
+		^ast.Union_Type,
+		^ast.Enum_Type,
+		^ast.Dynamic_Array_Type,
+		^ast.Map_Type,
+		^ast.Bit_Set_Type,
+		^ast.Matrix_Type,
+		^ast.Call_Expr:
 		return true
 	}
 	return false
@@ -2968,7 +3022,7 @@ parse_call_expr :: proc(p: ^Parser, operand: ^ast.Expr) -> ^ast.Expr {
 	ce.close    = close.pos
 
 	o := ast.unparen_expr(operand)
-	if se, ok := o.derived.(ast.Selector_Expr); ok && se.op.kind == .Arrow_Right {
+	if se, ok := o.derived.(^ast.Selector_Expr); ok && se.op.kind == .Arrow_Right {
 		sce := ast.new(ast.Selector_Call_Expr, ce.pos, ce.end)
 		sce.expr = o
 		sce.call = ce
@@ -3398,13 +3452,13 @@ parse_simple_stmt :: proc(p: ^Parser, flags: Stmt_Allow_Flags) -> ^ast.Stmt {
 				stmt := parse_stmt(p)
 
 				if stmt != nil {
-					switch n in &stmt.derived {
-					case ast.Block_Stmt:       n.label = label
-					case ast.If_Stmt:          n.label = label
-					case ast.For_Stmt:         n.label = label
-					case ast.Switch_Stmt:      n.label = label
-					case ast.Type_Switch_Stmt: n.label = label
-					case ast.Range_Stmt:	   n.label = label
+					#partial switch n in stmt.derived_stmt {
+					case ^ast.Block_Stmt:       n.label = label
+					case ^ast.If_Stmt:          n.label = label
+					case ^ast.For_Stmt:         n.label = label
+					case ^ast.Switch_Stmt:      n.label = label
+					case ^ast.Type_Switch_Stmt: n.label = label
+					case ^ast.Range_Stmt:	    n.label = label
 					}
 				}
 

core/odin/printer/visit.odin

@@ -342,16 +342,16 @@ visit_decl :: proc(p: ^Printer, decl: ^ast.Decl, called_in_stmt := false) {
 		return
 	}
 
-	switch v in &decl.derived {
-	case Expr_Stmt:
+	#partial switch v in decl.derived_stmt {
+	case ^Expr_Stmt:
 		move_line(p, decl.pos)
 		visit_expr(p, v.expr)
 		if p.config.semicolons {
 			push_generic_token(p, .Semicolon, 0)
 		}
-	case When_Stmt:
+	case ^When_Stmt:
 		visit_stmt(p, cast(^Stmt)decl)
-	case Foreign_Import_Decl:
+	case ^Foreign_Import_Decl:
 		if len(v.attributes) > 0 {
 			sort.sort(sort_attribute(&v.attributes))
 			move_line(p, v.attributes[0].pos)
@@ -370,7 +370,7 @@ visit_decl :: proc(p: ^Printer, decl: ^ast.Decl, called_in_stmt := false) {
 		for path in v.fullpaths {
 			push_ident_token(p, path, 0)
 		}
-	case Foreign_Block_Decl:
+	case ^Foreign_Block_Decl:
 		if len(v.attributes) > 0 {
 			sort.sort(sort_attribute(&v.attributes))
 			move_line(p, v.attributes[0].pos)
@@ -383,7 +383,7 @@ visit_decl :: proc(p: ^Printer, decl: ^ast.Decl, called_in_stmt := false) {
 
 		visit_expr(p, v.foreign_library)
 		visit_stmt(p, v.body)
-	case Import_Decl:
+	case ^Import_Decl:
 		move_line(p, decl.pos)
 
 		if v.name.text != "" {
@@ -395,7 +395,7 @@ visit_decl :: proc(p: ^Printer, decl: ^ast.Decl, called_in_stmt := false) {
 			push_ident_token(p, v.fullpath, 1)
 		}
 
-	case Value_Decl:
+	case ^Value_Decl:
 		if len(v.attributes) > 0 {
 			sort.sort(sort_attribute(&v.attributes))
 			move_line(p, v.attributes[0].pos)
@@ -446,10 +446,10 @@ visit_decl :: proc(p: ^Printer, decl: ^ast.Decl, called_in_stmt := false) {
 		add_semicolon := true
 
 		for value in v.values {
-			switch a in value.derived {
-			case Union_Type, Enum_Type, Struct_Type:
+			#partial switch a in value.derived {
+			case ^Union_Type, ^Enum_Type, ^Struct_Type:
 				add_semicolon = false || called_in_stmt
-			case Proc_Lit:
+			case ^Proc_Lit:
 				add_semicolon = false
 			}
 		}
@@ -516,23 +516,34 @@ visit_stmt :: proc(p: ^Printer, stmt: ^ast.Stmt, block_type: Block_Type = .Gener
 		return
 	}
 
-	switch v in stmt.derived {
-	case Import_Decl:
-		visit_decl(p, cast(^Decl)stmt, true)
-		return
-	case Value_Decl:
-		visit_decl(p, cast(^Decl)stmt, true)
-		return
-	case Foreign_Import_Decl:
-		visit_decl(p, cast(^Decl)stmt, true)
-		return
-	case Foreign_Block_Decl:
-		visit_decl(p, cast(^Decl)stmt, true)
-		return
-	}
 
-	switch v in stmt.derived {
-	case Using_Stmt:
+	switch v in stmt.derived_stmt {
+	case ^Bad_Stmt:
+	case ^Bad_Decl:
+	case ^Package_Decl:
+
+	case ^Empty_Stmt:
+		push_generic_token(p, .Semicolon, 0)
+	case ^Tag_Stmt:
+		push_generic_token(p, .Hash, 1)
+		push_generic_token(p, v.op.kind, 1, v.op.text)
+		visit_stmt(p, v.stmt)
+
+
+	case ^Import_Decl:
+		visit_decl(p, cast(^Decl)stmt, true)
+		return
+	case ^Value_Decl:
+		visit_decl(p, cast(^Decl)stmt, true)
+		return
+	case ^Foreign_Import_Decl:
+		visit_decl(p, cast(^Decl)stmt, true)
+		return
+	case ^Foreign_Block_Decl:
+		visit_decl(p, cast(^Decl)stmt, true)
+		return
+
+	case ^Using_Stmt:
 		move_line(p, v.pos)
 
 		push_generic_token(p, .Using, 1)
@@ -542,7 +553,7 @@ visit_stmt :: proc(p: ^Printer, stmt: ^ast.Stmt, block_type: Block_Type = .Gener
 		if p.config.semicolons {
 			push_generic_token(p, .Semicolon, 0)
 		}
-	case Block_Stmt:
+	case ^Block_Stmt:
 		move_line(p, v.pos)
 
 		if v.pos.line == v.end.line {
@@ -572,7 +583,7 @@ visit_stmt :: proc(p: ^Printer, stmt: ^ast.Stmt, block_type: Block_Type = .Gener
 				visit_end_brace(p, v.end)
 			}
 		}
-	case If_Stmt:
+	case ^If_Stmt:
 		move_line(p, v.pos)
 
 		if v.label != nil {
@@ -595,7 +606,7 @@ visit_stmt :: proc(p: ^Printer, stmt: ^ast.Stmt, block_type: Block_Type = .Gener
 
 		uses_do := false
 
-		if check_stmt, ok := v.body.derived.(Block_Stmt); ok && check_stmt.uses_do {
+		if check_stmt, ok := v.body.derived.(^Block_Stmt); ok && check_stmt.uses_do {
 			uses_do = true
 		}
 
@@ -626,7 +637,7 @@ visit_stmt :: proc(p: ^Printer, stmt: ^ast.Stmt, block_type: Block_Type = .Gener
 
 			visit_stmt(p, v.else_stmt)
 		}
-	case Switch_Stmt:
+	case ^Switch_Stmt:
 		move_line(p, v.pos)
 
 		if v.label != nil {
@@ -654,7 +665,7 @@ visit_stmt :: proc(p: ^Printer, stmt: ^ast.Stmt, block_type: Block_Type = .Gener
 
 		visit_expr(p, v.cond)
 		visit_stmt(p, v.body)
-	case Case_Clause:
+	case ^Case_Clause:
 		move_line(p, v.pos)
 
 		if !p.config.indent_cases {
@@ -678,7 +689,7 @@ visit_stmt :: proc(p: ^Printer, stmt: ^ast.Stmt, block_type: Block_Type = .Gener
 		if !p.config.indent_cases {
 			indent(p)
 		}
-	case Type_Switch_Stmt:
+	case ^Type_Switch_Stmt:
 		move_line(p, v.pos)
 
 		hint_current_line(p, {.Switch_Stmt})
@@ -696,7 +707,7 @@ visit_stmt :: proc(p: ^Printer, stmt: ^ast.Stmt, block_type: Block_Type = .Gener
 
 		visit_stmt(p, v.tag)
 		visit_stmt(p, v.body)
-	case Assign_Stmt:
+	case ^Assign_Stmt:
 		move_line(p, v.pos)
 
 		hint_current_line(p, {.Assign})
@@ -710,13 +721,13 @@ visit_stmt :: proc(p: ^Printer, stmt: ^ast.Stmt, block_type: Block_Type = .Gener
 		if block_stmt && p.config.semicolons {
 			push_generic_token(p, .Semicolon, 0)
 		}
-	case Expr_Stmt:
+	case ^Expr_Stmt:
 		move_line(p, v.pos)
 		visit_expr(p, v.expr)
 		if block_stmt && p.config.semicolons {
 			push_generic_token(p, .Semicolon, 0)
 		}
-	case For_Stmt:
+	case ^For_Stmt:
 		// this should be simplified
 		move_line(p, v.pos)
 
@@ -753,7 +764,7 @@ visit_stmt :: proc(p: ^Printer, stmt: ^ast.Stmt, block_type: Block_Type = .Gener
 
 		visit_stmt(p, v.body)
 
-	case Inline_Range_Stmt:
+	case ^Inline_Range_Stmt:
 		move_line(p, v.pos)
 
 		if v.label != nil {
@@ -779,7 +790,7 @@ visit_stmt :: proc(p: ^Printer, stmt: ^ast.Stmt, block_type: Block_Type = .Gener
 		visit_expr(p, v.expr)
 		visit_stmt(p, v.body)
 
-	case Range_Stmt:
+	case ^Range_Stmt:
 		move_line(p, v.pos)
 
 		if v.label != nil {
@@ -805,7 +816,7 @@ visit_stmt :: proc(p: ^Printer, stmt: ^ast.Stmt, block_type: Block_Type = .Gener
 		visit_expr(p, v.expr)
 
 		visit_stmt(p, v.body)
-	case Return_Stmt:
+	case ^Return_Stmt:
 		move_line(p, v.pos)
 
 		push_generic_token(p, .Return, 1)
@@ -817,7 +828,7 @@ visit_stmt :: proc(p: ^Printer, stmt: ^ast.Stmt, block_type: Block_Type = .Gener
 		if block_stmt && p.config.semicolons {
 			push_generic_token(p, .Semicolon, 0)
 		}
-	case Defer_Stmt:
+	case ^Defer_Stmt:
 		move_line(p, v.pos)
 		push_generic_token(p, .Defer, 0)
 
@@ -826,7 +837,7 @@ visit_stmt :: proc(p: ^Printer, stmt: ^ast.Stmt, block_type: Block_Type = .Gener
 		if p.config.semicolons {
 			push_generic_token(p, .Semicolon, 0)
 		}
-	case When_Stmt:
+	case ^When_Stmt:
 		move_line(p, v.pos)
 		push_generic_token(p, .When, 1)
 		visit_expr(p, v.cond)
@@ -846,7 +857,7 @@ visit_stmt :: proc(p: ^Printer, stmt: ^ast.Stmt, block_type: Block_Type = .Gener
 			visit_stmt(p, v.else_stmt)
 		}
 
-	case Branch_Stmt:
+	case ^Branch_Stmt:
 		move_line(p, v.pos)
 
 		push_generic_token(p, v.tok.kind, 0)
@@ -918,8 +929,15 @@ visit_expr :: proc(p: ^Printer, expr: ^ast.Expr, options := List_Options{}) {
 
 	set_source_position(p, expr.pos)
 
-	switch v in expr.derived {
-	case Inline_Asm_Expr:
+	switch v in expr.derived_expr {
+	case ^Bad_Expr:
+
+	case ^Tag_Expr:
+		push_generic_token(p, .Hash, 1)
+		push_generic_token(p, v.op.kind, 1, v.op.text)
+		visit_expr(p, v.expr)
+
+	case ^Inline_Asm_Expr:
 		push_generic_token(p, v.tok.kind, 1, v.tok.text)
 
 		push_generic_token(p, .Open_Paren, 1)
@@ -936,42 +954,42 @@ visit_expr :: proc(p: ^Printer, expr: ^ast.Expr, options := List_Options{}) {
 		push_generic_token(p, .Comma, 0)
 		visit_expr(p, v.constraints_string)
 		push_generic_token(p, .Close_Brace, 0)
-	case Undef:
+	case ^Undef:
 		push_generic_token(p, .Undef, 1)
-	case Auto_Cast:
+	case ^Auto_Cast:
 		push_generic_token(p, v.op.kind, 1)
 		visit_expr(p, v.expr)
-	case Ternary_If_Expr:
+	case ^Ternary_If_Expr:
 		visit_expr(p, v.x)
 		push_generic_token(p, v.op1.kind, 1)
 		visit_expr(p, v.cond)
 		push_generic_token(p, v.op2.kind, 1)
 		visit_expr(p, v.y)
-	case Ternary_When_Expr:
+	case ^Ternary_When_Expr:
 		visit_expr(p, v.x)
 		push_generic_token(p, v.op1.kind, 1)
 		visit_expr(p, v.cond)
 		push_generic_token(p, v.op2.kind, 1)
 		visit_expr(p, v.y)
-	case Or_Else_Expr:
+	case ^Or_Else_Expr:
 		visit_expr(p, v.x)
 		push_generic_token(p, v.token.kind, 1)
 		visit_expr(p, v.y)
-	case Or_Return_Expr:
+	case ^Or_Return_Expr:
 		visit_expr(p, v.expr)
 		push_generic_token(p, v.token.kind, 1)
-	case Selector_Call_Expr:
+	case ^Selector_Call_Expr:
 		visit_expr(p, v.call.expr)
 		push_generic_token(p, .Open_Paren, 1)
 		visit_exprs(p, v.call.args, {.Add_Comma})
 		push_generic_token(p, .Close_Paren, 0)
-	case Ellipsis:
+	case ^Ellipsis:
 		push_generic_token(p, .Ellipsis, 1)
 		visit_expr(p, v.expr)
-	case Relative_Type:
+	case ^Relative_Type:
 		visit_expr(p, v.tag)
 		visit_expr(p, v.type)
-	case Slice_Expr:
+	case ^Slice_Expr:
 		visit_expr(p, v.expr)
 		push_generic_token(p, .Open_Bracket, 0)
 		visit_expr(p, v.low)
@@ -981,37 +999,37 @@ visit_expr :: proc(p: ^Printer, expr: ^ast.Expr, options := List_Options{}) {
 			visit_expr(p, v.high)
 		}
 		push_generic_token(p, .Close_Bracket, 0)
-	case Ident:
+	case ^Ident:
 		if .Enforce_Poly_Names in options {
 			push_generic_token(p, .Dollar, 1)
 			push_ident_token(p, v.name, 0)
 		} else {
 			push_ident_token(p, v.name, 1)
 		}
-	case Deref_Expr:
+	case ^Deref_Expr:
 		visit_expr(p, v.expr)
 		push_generic_token(p, v.op.kind, 0)
-	case Type_Cast:
+	case ^Type_Cast:
 		push_generic_token(p, v.tok.kind, 1)
 		push_generic_token(p, .Open_Paren, 0)
 		visit_expr(p, v.type)
 		push_generic_token(p, .Close_Paren, 0)
 		merge_next_token(p)
 		visit_expr(p, v.expr)
-	case Basic_Directive:
+	case ^Basic_Directive:
 		push_generic_token(p, v.tok.kind, 1)
 		push_ident_token(p, v.name, 0)
-	case Distinct_Type:
+	case ^Distinct_Type:
 		push_generic_token(p, .Distinct, 1)
 		visit_expr(p, v.type)
-	case Dynamic_Array_Type:
+	case ^Dynamic_Array_Type:
 		visit_expr(p, v.tag)
 		push_generic_token(p, .Open_Bracket, 1)
 		push_generic_token(p, .Dynamic, 0)
 		push_generic_token(p, .Close_Bracket, 0)
 		merge_next_token(p)
 		visit_expr(p, v.elem)
-	case Bit_Set_Type:
+	case ^Bit_Set_Type:
 		push_generic_token(p, .Bit_Set, 1)
 		push_generic_token(p, .Open_Bracket, 0)
 
@@ -1023,13 +1041,16 @@ visit_expr :: proc(p: ^Printer, expr: ^ast.Expr, options := List_Options{}) {
 		}
 
 		push_generic_token(p, .Close_Bracket, 0)
-	case Union_Type:
+	case ^Union_Type:
 		push_generic_token(p, .Union, 1)
 
 		push_poly_params(p, v.poly_params)
 
-		if v.is_maybe {
-			push_ident_token(p, "#maybe", 1)
+		switch v.kind {
+		case .Normal:
+		case .maybe:      push_ident_token(p, "#maybe", 1)
+		case .no_nil:     push_ident_token(p, "#no_nil", 1)
+		case .shared_nil: push_ident_token(p, "#shared_nil", 1)
 		}
 
 		push_where_clauses(p, v.where_clauses)
@@ -1045,7 +1066,7 @@ visit_expr :: proc(p: ^Printer, expr: ^ast.Expr, options := List_Options{}) {
 			visit_exprs(p, v.variants, {.Add_Comma, .Trailing})
 			visit_end_brace(p, v.end)
 		}
-	case Enum_Type:
+	case ^Enum_Type:
 		push_generic_token(p, .Enum, 1)
 
 		hint_current_line(p, {.Enum})
@@ -1068,7 +1089,7 @@ visit_expr :: proc(p: ^Printer, expr: ^ast.Expr, options := List_Options{}) {
 		}
 
 		set_source_position(p, v.end)
-	case Struct_Type:
+	case ^Struct_Type:
 		push_generic_token(p, .Struct, 1)
 
 		hint_current_line(p, {.Struct})
@@ -1103,7 +1124,7 @@ visit_expr :: proc(p: ^Printer, expr: ^ast.Expr, options := List_Options{}) {
 		}
 
 		set_source_position(p, v.end)
-	case Proc_Lit:
+	case ^Proc_Lit:
 		switch v.inlining {
 		case .None:
 		case .Inline:
@@ -1112,7 +1133,7 @@ visit_expr :: proc(p: ^Printer, expr: ^ast.Expr, options := List_Options{}) {
 			push_ident_token(p, "#force_no_inline", 0)
 		}
 
-		visit_proc_type(p, v.type^, true)
+		visit_proc_type(p, v.type, true)
 
 		push_where_clauses(p, v.where_clauses)
 
@@ -1122,16 +1143,16 @@ visit_expr :: proc(p: ^Printer, expr: ^ast.Expr, options := List_Options{}) {
 		} else {
 			push_generic_token(p, .Undef, 1)
 		}
-	case Proc_Type:
+	case ^Proc_Type:
 		visit_proc_type(p, v)
-	case Basic_Lit:
+	case ^Basic_Lit:
 		push_generic_token(p, v.tok.kind, 1, v.tok.text)
-	case Binary_Expr:
+	case ^Binary_Expr:
 		visit_binary_expr(p, v)
-	case Implicit_Selector_Expr:
+	case ^Implicit_Selector_Expr:
 		push_generic_token(p, .Period, 1)
 		push_ident_token(p, v.field.name, 0)
-	case Call_Expr:
+	case ^Call_Expr:
 		visit_expr(p, v.expr)
 
 		push_format_token(p,
@@ -1146,27 +1167,34 @@ visit_expr :: proc(p: ^Printer, expr: ^ast.Expr, options := List_Options{}) {
 
 		visit_call_exprs(p, v.args, v.ellipsis.kind == .Ellipsis)
 		push_generic_token(p, .Close_Paren, 0)
-	case Typeid_Type:
+	case ^Typeid_Type:
 		push_generic_token(p, .Typeid, 1)
 
 		if v.specialization != nil {
 			push_generic_token(p, .Quo, 0)
 			visit_expr(p, v.specialization)
 		}
-	case Selector_Expr:
+	case ^Selector_Expr:
 		visit_expr(p, v.expr)
 		push_generic_token(p, v.op.kind, 0)
 		visit_expr(p, v.field)
-	case Paren_Expr:
+	case ^Paren_Expr:
 		push_generic_token(p, .Open_Paren, 1)
 		visit_expr(p, v.expr)
 		push_generic_token(p, .Close_Paren, 0)
-	case Index_Expr:
+	case ^Index_Expr:
 		visit_expr(p, v.expr)
 		push_generic_token(p, .Open_Bracket, 0)
 		visit_expr(p, v.index)
 		push_generic_token(p, .Close_Bracket, 0)
-	case Proc_Group:
+	case ^Matrix_Index_Expr:
+		visit_expr(p, v.expr)
+		push_generic_token(p, .Open_Bracket, 0)
+		visit_expr(p, v.row_index)
+		push_generic_token(p, .Comma, 0)
+		visit_expr(p, v.column_index)
+		push_generic_token(p, .Close_Bracket, 0)
+	case ^Proc_Group:
 		push_generic_token(p, v.tok.kind, 1)
 
 		if len(v.args) != 0 && v.pos.line != v.args[len(v.args) - 1].pos.line {
@@ -1181,7 +1209,7 @@ visit_expr :: proc(p: ^Printer, expr: ^ast.Expr, options := List_Options{}) {
 			push_generic_token(p, .Close_Brace, 0)
 		}
 
-	case Comp_Lit:
+	case ^Comp_Lit:
 		if v.type != nil {
 			visit_expr(p, v.type)
 		}
@@ -1198,18 +1226,18 @@ visit_expr :: proc(p: ^Printer, expr: ^ast.Expr, options := List_Options{}) {
 			push_generic_token(p, .Close_Brace, 0)
 		}
 
-	case Unary_Expr:
+	case ^Unary_Expr:
 		push_generic_token(p, v.op.kind, 1)
 		merge_next_token(p)
 		visit_expr(p, v.expr)
-	case Field_Value:
+	case ^Field_Value:
 		visit_expr(p, v.field)
 		push_generic_token(p, .Eq, 1)
 		visit_expr(p, v.value)
-	case Type_Assertion:
+	case ^Type_Assertion:
 		visit_expr(p, v.expr)
 
-		if unary, ok := v.type.derived.(Unary_Expr); ok && unary.op.text == "?" {
+		if unary, ok := v.type.derived.(^Unary_Expr); ok && unary.op.text == "?" {
 			push_generic_token(p, .Period, 0)
 			visit_expr(p, v.type)
 		} else {
@@ -1219,13 +1247,13 @@ visit_expr :: proc(p: ^Printer, expr: ^ast.Expr, options := List_Options{}) {
 			push_generic_token(p, .Close_Paren, 0)
 		}
 
-	case Pointer_Type:
+	case ^Pointer_Type:
 		push_generic_token(p, .Pointer, 1)
 		merge_next_token(p)
 		visit_expr(p, v.elem)
-	case Implicit:
+	case ^Implicit:
 		push_generic_token(p, v.tok.kind, 1)
-	case Poly_Type:
+	case ^Poly_Type:
 		push_generic_token(p, .Dollar, 1)
 		merge_next_token(p)
 		visit_expr(p, v.type)
@@ -1235,22 +1263,35 @@ visit_expr :: proc(p: ^Printer, expr: ^ast.Expr, options := List_Options{}) {
 			merge_next_token(p)
 			visit_expr(p, v.specialization)
 		}
-	case Array_Type:
+	case ^Array_Type:
 		visit_expr(p, v.tag)
 		push_generic_token(p, .Open_Bracket, 1)
 		visit_expr(p, v.len)
 		push_generic_token(p, .Close_Bracket, 0)
 		merge_next_token(p)
 		visit_expr(p, v.elem)
-	case Map_Type:
+	case ^Map_Type:
 		push_generic_token(p, .Map, 1)
 		push_generic_token(p, .Open_Bracket, 0)
 		visit_expr(p, v.key)
 		push_generic_token(p, .Close_Bracket, 0)
 		merge_next_token(p)
 		visit_expr(p, v.value)
-	case Helper_Type:
+	case ^Helper_Type:
 		visit_expr(p, v.type)
+	case ^Multi_Pointer_Type:
+		push_generic_token(p, .Open_Bracket, 1)
+		push_generic_token(p, .Pointer, 0)
+		push_generic_token(p, .Close_Bracket, 0)
+		visit_expr(p, v.elem)
+	case ^Matrix_Type:
+		push_generic_token(p, .Matrix, 1)
+		push_generic_token(p, .Open_Bracket, 0)
+		visit_expr(p, v.row_count)
+		push_generic_token(p, .Comma, 0)
+		visit_expr(p, v.column_count)
+		push_generic_token(p, .Close_Bracket, 0)
+		visit_expr(p, v.elem)
 	case:
 		panic(fmt.aprint(expr.derived))
 	}
@@ -1348,7 +1389,7 @@ visit_field_list :: proc(p: ^Printer, list: ^ast.Field_List, options := List_Opt
 	}
 }
 
-visit_proc_type :: proc(p: ^Printer, proc_type: ast.Proc_Type, is_proc_lit := false) {
+visit_proc_type :: proc(p: ^Printer, proc_type: ^ast.Proc_Type, is_proc_lit := false) {
 	if is_proc_lit {
 		push_format_token(p, Format_Token {
 			kind = .Proc,
@@ -1392,7 +1433,7 @@ visit_proc_type :: proc(p: ^Printer, proc_type: ast.Proc_Type, is_proc_lit := fa
 		} else if len(proc_type.results.list) == 1 {
 
 			for name in proc_type.results.list[0].names {
-				if ident, ok := name.derived.(ast.Ident); ok {
+				if ident, ok := name.derived.(^ast.Ident); ok {
 					if ident.name != "_" {
 						use_parens = true
 					}
@@ -1410,19 +1451,19 @@ visit_proc_type :: proc(p: ^Printer, proc_type: ast.Proc_Type, is_proc_lit := fa
 	}
 }
 
-visit_binary_expr :: proc(p: ^Printer, binary: ast.Binary_Expr) {
+visit_binary_expr :: proc(p: ^Printer, binary: ^ast.Binary_Expr) {
 	move_line(p, binary.left.pos)
 
-	if v, ok := binary.left.derived.(ast.Binary_Expr); ok {
+	if v, ok := binary.left.derived.(^ast.Binary_Expr); ok {
 		visit_binary_expr(p, v)
 	} else {
 		visit_expr(p, binary.left)
 	}
 
 	either_implicit_selector := false
-	if _, ok := binary.left.derived.(ast.Implicit_Selector_Expr); ok {
+	if _, ok := binary.left.derived.(^ast.Implicit_Selector_Expr); ok {
 		either_implicit_selector = true
-	} else if _, ok := binary.right.derived.(ast.Implicit_Selector_Expr); ok {
+	} else if _, ok := binary.right.derived.(^ast.Implicit_Selector_Expr); ok {
 		either_implicit_selector = true
 	}
 
@@ -1439,7 +1480,7 @@ visit_binary_expr :: proc(p: ^Printer, binary: ast.Binary_Expr) {
 	move_line(p, binary.right.pos)
 
 
-	if v, ok := binary.right.derived.(ast.Binary_Expr); ok {
+	if v, ok := binary.right.derived.(^ast.Binary_Expr); ok {
 		visit_binary_expr(p, v)
 	} else {
 		visit_expr(p, binary.right)
@@ -1499,7 +1540,7 @@ visit_signature_list :: proc(p: ^Printer, list: ^ast.Field_List, remove_blank :=
 		named := false
 
 		for name in field.names {
-			if ident, ok := name.derived.(ast.Ident); ok {
+			if ident, ok := name.derived.(^ast.Ident); ok {
 				//for some reason the parser uses _ to mean empty
 				if ident.name != "_" || !remove_blank {
 					named = true

core/os/dir_freebsd.odin

@@ -0,0 +1,70 @@
+package os
+
+import "core:strings"
+import "core:mem"
+
+read_dir :: proc(fd: Handle, n: int, allocator := context.allocator) -> (fi: []File_Info, err: Errno) {
+	dirp: Dir
+	dirp, err = _fdopendir(fd)
+	if err != ERROR_NONE {
+		return
+	}
+
+	defer _closedir(dirp)
+
+	dirpath: string
+	dirpath, err = absolute_path_from_handle(fd)
+
+	if err != ERROR_NONE {
+		return
+	}
+
+	defer delete(dirpath)
+
+	n := n
+	size := n
+	if n <= 0 {
+		n = -1
+		size = 100
+	}
+
+	dfi := make([dynamic]File_Info, 0, size, allocator)
+
+	for {
+		entry: Dirent
+		end_of_stream: bool
+		entry, err, end_of_stream = _readdir(dirp)
+		if err != ERROR_NONE {
+			for fi_ in dfi {
+				file_info_delete(fi_, allocator)
+			}
+			delete(dfi)
+			return
+		} else if end_of_stream {
+			break
+		}
+
+		fi_: File_Info
+		filename := cast(string)(transmute(cstring)mem.Raw_Cstring{ data = &entry.name[0] })
+
+		if filename == "." || filename == ".." {
+			continue
+		}
+
+		fullpath := strings.join( []string{ dirpath, filename }, "/", context.temp_allocator)
+		defer delete(fullpath, context.temp_allocator)
+
+		fi_, err = stat(fullpath, allocator)
+		if err != ERROR_NONE {
+			for fi__ in dfi {
+				file_info_delete(fi__, allocator)
+			}
+			delete(dfi)
+			return
+		}
+
+		append(&dfi, fi_)
+	}
+
+	return dfi[:], ERROR_NONE
+}

core/os/dir_openbsd.odin

@@ -0,0 +1,71 @@
+package os
+
+import "core:strings"
+import "core:mem"
+
+read_dir :: proc(fd: Handle, n: int, allocator := context.allocator) -> (fi: []File_Info, err: Errno) {
+	dirp: Dir
+	dirp, err = _fdopendir(fd)
+	if err != ERROR_NONE {
+		return
+	}
+
+	defer _closedir(dirp)
+
+	// XXX OpenBSD
+	dirpath: string
+	dirpath, err = absolute_path_from_handle(fd)
+
+	if err != ERROR_NONE {
+		return
+	}
+
+	defer delete(dirpath)
+
+	n := n
+	size := n
+	if n <= 0 {
+		n = -1
+		size = 100
+	}
+
+	dfi := make([dynamic]File_Info, 0, size, allocator)
+
+	for {
+		entry: Dirent
+		end_of_stream: bool
+		entry, err, end_of_stream = _readdir(dirp)
+		if err != ERROR_NONE {
+			for fi_ in dfi {
+				file_info_delete(fi_, allocator)
+			}
+			delete(dfi)
+			return
+		} else if end_of_stream {
+			break
+		}
+
+		fi_: File_Info
+		filename := cast(string)(transmute(cstring)mem.Raw_Cstring{ data = &entry.name[0] })
+
+		if filename == "." || filename == ".." {
+			continue
+		}
+
+		fullpath := strings.join( []string{ dirpath, filename }, "/", context.temp_allocator)
+		defer delete(fullpath, context.temp_allocator)
+
+		fi_, err = stat(fullpath, allocator)
+		if err != ERROR_NONE {
+			for fi__ in dfi {
+				file_info_delete(fi__, allocator)
+			}
+			delete(dfi)
+			return
+		}
+
+		append(&dfi, fi_)
+	}
+
+	return dfi[:], ERROR_NONE
+}

core/os/dir_windows.odin

@@ -82,6 +82,7 @@ read_dir :: proc(fd: Handle, n: int, allocator := context.allocator) -> (fi: []F
 	wpath_search[len(wpath)+2] = 0
 
 	path := cleanpath_from_buf(wpath)
+	defer delete(path)
 
 	find_data := &win32.WIN32_FIND_DATAW{}
 	find_handle := win32.FindFirstFileW(raw_data(wpath_search), find_data)

core/os/file_windows.odin

@@ -106,19 +106,23 @@ read_console :: proc(handle: win32.HANDLE, b: []byte) -> (n: int, err: Errno) {
 	BUF_SIZE :: 386
 	buf16: [BUF_SIZE]u16
 	buf8: [4*BUF_SIZE]u8
-	
+
 	for n < len(b) && err == 0 {
-		max_read := u32(min(BUF_SIZE, len(b)/4))
+		min_read := max(len(b)/4, 1 if len(b) > 0 else 0)
+		max_read := u32(min(BUF_SIZE, min_read))
+		if max_read == 0 {
+			break
+		}
 		
 		single_read_length: u32
 		ok := win32.ReadConsoleW(handle, &buf16[0], max_read, &single_read_length, nil)
 		if !ok {
 			err = Errno(win32.GetLastError())
 		}
-		
+
 		buf8_len := utf16.decode_to_utf8(buf8[:], buf16[:single_read_length])
 		src := buf8[:buf8_len]
-		
+
 		ctrl_z := false
 		for i := 0; i < len(src) && n+i < len(b); i += 1 {
 			x := src[i]
@@ -129,9 +133,16 @@ read_console :: proc(handle: win32.HANDLE, b: []byte) -> (n: int, err: Errno) {
 			b[n] = x
 			n += 1
 		}
-		if ctrl_z || single_read_length < len(buf16) {
+		if ctrl_z || single_read_length < max_read {
 			break
 		}
+
+		// NOTE(bill): if the last two values were a newline, then it is expected that
+		// this is the end of the input
+		if n >= 2 && single_read_length == max_read && string(b[n-2:n]) == "\r\n" {
+			break
+		}
+
 	}
 	
 	return
@@ -399,7 +410,7 @@ is_abs :: proc(path: string) -> bool {
 	if len(path) > 0 && path[0] == '/' {
 		return true
 	}
-	when ODIN_OS == "windows" {
+	when ODIN_OS == .Windows {
 		if len(path) > 2 {
 			switch path[0] {
 			case 'A'..='Z', 'a'..='z':

core/os/os.odin

@@ -139,7 +139,7 @@ write_entire_file :: proc(name: string, data: []byte, truncate := true) -> (succ
 	}
 
 	mode: int = 0
-	when OS == "linux" || OS == "darwin" {
+	when OS == .Linux || OS == .Darwin {
 		// NOTE(justasd): 644 (owner read, write; group read; others read)
 		mode = S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH
 	}
@@ -206,11 +206,19 @@ heap_allocator_proc :: proc(allocator_data: rawptr, mode: mem.Allocator_Mode,
 		}
 	}
 
-	aligned_resize :: proc(p: rawptr, old_size: int, new_size: int, new_alignment: int) -> ([]byte, mem.Allocator_Error) {
+	aligned_resize :: proc(p: rawptr, old_size: int, new_size: int, new_alignment: int) -> (new_memory: []byte, err: mem.Allocator_Error) {
 		if p == nil {
 			return nil, nil
 		}
-		return aligned_alloc(new_size, new_alignment, p)
+
+		new_memory = aligned_alloc(new_size, new_alignment, p) or_return
+		
+		// NOTE: heap_resize does not zero the new memory, so we do it
+		if new_size > old_size {
+			new_region := mem.raw_data(new_memory[old_size:])
+			mem.zero(new_region, new_size - old_size)
+		}
+		return
 	}
 
 	switch mode {

core/os/os2/process.odin

@@ -1,6 +1,6 @@
 package os2
 
-import sync "core:sync/sync2"
+import "core:sync"
 import "core:time"
 import "core:runtime"
 

core/os/os2/user.odin

@@ -3,13 +3,13 @@ package os2
 import "core:strings"
 
 user_cache_dir :: proc(allocator := context.allocator) -> (dir: string, is_defined: bool) {
-	switch ODIN_OS {
-	case "windows":
+	#partial switch ODIN_OS {
+	case .Windows:
 		dir = get_env("LocalAppData")
 		if dir != "" {
 			dir = strings.clone(dir, allocator)
 		}
-	case "darwin":
+	case .Darwin:
 		dir = get_env("HOME")
 		if dir != "" {
 			dir = strings.concatenate({dir, "/Library/Caches"}, allocator)
@@ -29,13 +29,13 @@ user_cache_dir :: proc(allocator := context.allocator) -> (dir: string, is_defin
 }
 
 user_config_dir :: proc(allocator := context.allocator) -> (dir: string, is_defined: bool) {
-	switch ODIN_OS {
-	case "windows":
+	#partial switch ODIN_OS {
+	case .Windows:
 		dir = get_env("AppData")
 		if dir != "" {
 			dir = strings.clone(dir, allocator)
 		}
-	case "darwin":
+	case .Darwin:
 		dir = get_env("HOME")
 		if dir != "" {
 			dir = strings.concatenate({dir, "/Library/Application Support"}, allocator)
@@ -56,8 +56,8 @@ user_config_dir :: proc(allocator := context.allocator) -> (dir: string, is_defi
 
 user_home_dir :: proc() -> (dir: string, is_defined: bool) {
 	env := "HOME"
-	switch ODIN_OS {
-	case "windows":
+	#partial switch ODIN_OS {
+	case .Windows:
 		env = "USERPROFILE"
 	}
 	if v := get_env(env); v != "" {

core/os/os_darwin.odin

@@ -260,13 +260,13 @@ S_ISUID :: 0o4000 // Set user id on execution
 S_ISGID :: 0o2000 // Set group id on execution
 S_ISVTX :: 0o1000 // Directory restrcted delete
 
-S_ISLNK  :: #force_inline proc(m: u32) -> bool { return (m & S_IFMT) == S_IFLNK  }
-S_ISREG  :: #force_inline proc(m: u32) -> bool { return (m & S_IFMT) == S_IFREG  }
-S_ISDIR  :: #force_inline proc(m: u32) -> bool { return (m & S_IFMT) == S_IFDIR  }
-S_ISCHR  :: #force_inline proc(m: u32) -> bool { return (m & S_IFMT) == S_IFCHR  }
-S_ISBLK  :: #force_inline proc(m: u32) -> bool { return (m & S_IFMT) == S_IFBLK  }
-S_ISFIFO :: #force_inline proc(m: u32) -> bool { return (m & S_IFMT) == S_IFIFO  }
-S_ISSOCK :: #force_inline proc(m: u32) -> bool { return (m & S_IFMT) == S_IFSOCK }
+S_ISLNK  :: #force_inline proc(m: u16) -> bool { return (m & S_IFMT) == S_IFLNK  }
+S_ISREG  :: #force_inline proc(m: u16) -> bool { return (m & S_IFMT) == S_IFREG  }
+S_ISDIR  :: #force_inline proc(m: u16) -> bool { return (m & S_IFMT) == S_IFDIR  }
+S_ISCHR  :: #force_inline proc(m: u16) -> bool { return (m & S_IFMT) == S_IFCHR  }
+S_ISBLK  :: #force_inline proc(m: u16) -> bool { return (m & S_IFMT) == S_IFBLK  }
+S_ISFIFO :: #force_inline proc(m: u16) -> bool { return (m & S_IFMT) == S_IFIFO  }
+S_ISSOCK :: #force_inline proc(m: u16) -> bool { return (m & S_IFMT) == S_IFSOCK }
 
 R_OK :: 4 // Test for read permission
 W_OK :: 2 // Test for write permission
@@ -290,12 +290,20 @@ foreign libc {
 	@(link_name="fstat64")          _unix_fstat         :: proc(fd: Handle, stat: ^OS_Stat) -> c.int ---
 	@(link_name="readlink")         _unix_readlink      :: proc(path: cstring, buf: ^byte, bufsiz: c.size_t) -> c.ssize_t ---
 	@(link_name="access")           _unix_access        :: proc(path: cstring, mask: int) -> int ---
-	@(link_name="fdopendir$INODE64") _unix_fdopendir    :: proc(fd: Handle) -> Dir ---
+
+	@(link_name="fdopendir$INODE64") _unix_fdopendir_amd64 :: proc(fd: Handle) -> Dir ---
+	@(link_name="readdir_r$INODE64") _unix_readdir_r_amd64 :: proc(dirp: Dir, entry: ^Dirent, result: ^^Dirent) -> c.int ---
+	@(link_name="fdopendir")         _unix_fdopendir_arm64 :: proc(fd: Handle) -> Dir ---
+	@(link_name="readdir_r")         _unix_readdir_r_arm64 :: proc(dirp: Dir, entry: ^Dirent, result: ^^Dirent) -> c.int ---
+
 	@(link_name="closedir")         _unix_closedir      :: proc(dirp: Dir) -> c.int ---
 	@(link_name="rewinddir")        _unix_rewinddir     :: proc(dirp: Dir) ---
-	@(link_name="readdir_r$INODE64") _unix_readdir_r    :: proc(dirp: Dir, entry: ^Dirent, result: ^^Dirent) -> c.int ---
+	
 	@(link_name="fcntl")            _unix_fcntl         :: proc(fd: Handle, cmd: c.int, buf: ^byte) -> c.int ---
 
+	@(link_name="rename") _unix_rename :: proc(old: cstring, new: cstring) -> c.int ---
+	@(link_name="remove") _unix_remove :: proc(path: cstring) -> c.int ---
+
 	@(link_name="fchmod") _unix_fchmod :: proc(fildes: Handle, mode: u16) -> c.int ---
 
 	@(link_name="malloc")   _unix_malloc   :: proc(size: int) -> rawptr ---
@@ -305,6 +313,7 @@ foreign libc {
 	@(link_name="getenv")   _unix_getenv   :: proc(cstring) -> cstring ---
 	@(link_name="getcwd")   _unix_getcwd   :: proc(buf: cstring, len: c.size_t) -> cstring ---
 	@(link_name="chdir")    _unix_chdir    :: proc(buf: cstring) -> c.int ---
+	@(link_name="mkdir")    _unix_mkdir    :: proc(buf: cstring, mode: u16) -> c.int ---
 	@(link_name="realpath") _unix_realpath :: proc(path: cstring, resolved_path: rawptr) -> rawptr ---
 
 	@(link_name="strerror") _darwin_string_error :: proc(num : c.int) -> cstring ---
@@ -312,6 +321,14 @@ foreign libc {
 	@(link_name="exit")    _unix_exit :: proc(status: c.int) -> ! ---
 }
 
+when ODIN_ARCH != .arm64 {
+	_unix_fdopendir :: proc {_unix_fdopendir_amd64}
+	_unix_readdir_r :: proc {_unix_readdir_r_amd64}
+} else {
+	_unix_fdopendir :: proc {_unix_fdopendir_arm64}
+	_unix_readdir_r :: proc {_unix_readdir_r_arm64}
+}
+
 foreign dl {
 	@(link_name="dlopen")  _unix_dlopen  :: proc(filename: cstring, flags: int) -> rawptr ---
 	@(link_name="dlsym")   _unix_dlsym   :: proc(handle: rawptr, symbol: cstring) -> rawptr ---
@@ -328,14 +345,13 @@ get_last_error_string :: proc() -> string {
 }
 
 open :: proc(path: string, flags: int = O_RDWR, mode: int = 0) -> (Handle, Errno) {
-	cstr := strings.clone_to_cstring(path)
+	cstr := strings.clone_to_cstring(path, context.temp_allocator)
 	handle := _unix_open(cstr, i32(flags), u16(mode))
-	delete(cstr)
 	if handle == -1 {
 		return INVALID_HANDLE, 1
 	}
 
-when  ODIN_OS == "darwin" && ODIN_ARCH == "arm64" {
+when  ODIN_OS == .Darwin && ODIN_ARCH == .arm64 {
 	if mode != 0 {
 		err := fchmod(handle, cast(u16)mode)
 		if err != 0 {
@@ -412,6 +428,65 @@ is_path_separator :: proc(r: rune) -> bool {
 	return r == '/'
 }
 
+is_file_handle :: proc(fd: Handle) -> bool {
+	s, err := _fstat(fd)
+	if err != ERROR_NONE {
+		return false
+	}
+	return S_ISREG(s.mode)
+}
+
+is_file_path :: proc(path: string, follow_links: bool = true) -> bool {
+	s: OS_Stat
+	err: Errno
+	if follow_links {
+		s, err = _stat(path)
+	} else {
+		s, err = _lstat(path)
+	}
+	if err != ERROR_NONE {
+		return false
+	}
+	return S_ISREG(s.mode)
+}
+
+
+is_dir_handle :: proc(fd: Handle) -> bool {
+	s, err := _fstat(fd)
+	if err != ERROR_NONE {
+		return false
+	}
+	return S_ISDIR(s.mode)
+}
+
+is_dir_path :: proc(path: string, follow_links: bool = true) -> bool {
+	s: OS_Stat
+	err: Errno
+	if follow_links {
+		s, err = _stat(path)
+	} else {
+		s, err = _lstat(path)
+	}
+	if err != ERROR_NONE {
+		return false
+	}
+	return S_ISDIR(s.mode)
+}
+
+is_file :: proc {is_file_path, is_file_handle}
+is_dir :: proc {is_dir_path, is_dir_handle}
+
+
+rename :: proc(old: string, new: string) -> bool {
+	old_cstr := strings.clone_to_cstring(old, context.temp_allocator)
+	new_cstr := strings.clone_to_cstring(new, context.temp_allocator)
+	return _unix_rename(old_cstr, new_cstr) != -1 
+}
+
+remove :: proc(path: string) -> bool {
+	path_cstr := strings.clone_to_cstring(path, context.temp_allocator)
+	return _unix_remove(path_cstr) != -1 
+}
 
 @private
 _stat :: proc(path: string) -> (OS_Stat, Errno) {
@@ -553,6 +628,8 @@ heap_alloc :: proc(size: int) -> rawptr {
 	return _unix_calloc(1, size)
 }
 heap_resize :: proc(ptr: rawptr, new_size: int) -> rawptr {
+	// NOTE: _unix_realloc doesn't guarantee new memory will be zeroed on
+	// POSIX platforms. Ensure your caller takes this into account.
 	return _unix_realloc(ptr, new_size)
 }
 heap_free :: proc(ptr: rawptr) {
@@ -593,7 +670,17 @@ set_current_directory :: proc(path: string) -> (err: Errno) {
 	return ERROR_NONE
 }
 
+make_directory :: proc(path: string, mode: u16 = 0o775) -> Errno {
+	path_cstr := strings.clone_to_cstring(path, context.temp_allocator)
+	res := _unix_mkdir(path_cstr, mode)
+	if res == -1 {
+		return Errno(get_last_error())
+	}
+	return ERROR_NONE
+}
+
 exit :: proc "contextless" (code: int) -> ! {
+	runtime._cleanup_runtime_contextless()
 	_unix_exit(i32(code))
 }
 

core/os/os_freebsd.odin

@@ -7,465 +7,698 @@ import "core:runtime"
 import "core:strings"
 import "core:c"
 
-Handle :: distinct i32;
-File_Time :: distinct u64;
-Errno :: distinct i32;
-Syscall :: distinct i32;
+Handle :: distinct i32
+File_Time :: distinct u64
+Errno :: distinct i32
 
-INVALID_HANDLE :: ~Handle(0);
+INVALID_HANDLE :: ~Handle(0)
 
-ERROR_NONE:      Errno : 0;
-EPERM:           Errno : 1;
-ENOENT:          Errno : 2;
-ESRCH:           Errno : 3;
-EINTR:           Errno : 4;
-EIO:             Errno : 5;
-ENXIO:           Errno : 6;
-E2BIG:           Errno : 7;
-ENOEXEC:         Errno : 8;
-EBADF:           Errno : 9;
-ECHILD:          Errno : 10;
-EBEADLK:         Errno : 11;
-ENOMEM:          Errno : 12;
-EACCESS:         Errno : 13;
-EFAULT:          Errno : 14;
-ENOTBLK:         Errno : 15;
-EBUSY:           Errno : 16;
-EEXIST:          Errno : 17;
-EXDEV:           Errno : 18;
-ENODEV:          Errno : 19;
-ENOTDIR:         Errno : 20;
-EISDIR:          Errno : 21;
-EINVAL:          Errno : 22;
-ENFILE:          Errno : 23;
-EMFILE:          Errno : 24;
-ENOTTY:          Errno : 25;
-ETXTBSY:         Errno : 26;
-EFBIG:           Errno : 27;
-ENOSPC:          Errno : 28;
-ESPIPE:          Errno : 29;
-EROFS:           Errno : 30;
-EMLINK:          Errno : 31;
-EPIPE:           Errno : 32;
-EDOM:            Errno : 33;
-ERANGE:          Errno : 34; /* Result too large */
-EAGAIN:          Errno : 35;
-EINPROGRESS:     Errno : 36;
-EALREADY:        Errno : 37;
-ENOTSOCK:        Errno : 38;
-EDESTADDRREQ:    Errno : 39;
-EMSGSIZE:        Errno : 40;
-EPROTOTYPE:      Errno : 41;
-ENOPROTOOPT:     Errno : 42;
-EPROTONOSUPPORT: Errno : 43;
-ESOCKTNOSUPPORT: Errno : 44;
-EOPNOTSUPP:      Errno : 45;
-EPFNOSUPPORT:    Errno : 46;
-EAFNOSUPPORT:    Errno : 47;
-EADDRINUSE:      Errno : 48;
-EADDRNOTAVAIL:   Errno : 49;
-ENETDOWN:        Errno : 50;
-ENETUNREACH:     Errno : 51;
-ENETRESET:       Errno : 52;
-ECONNABORTED:    Errno : 53;
-ECONNRESET:      Errno : 54;
-ENOBUFS:         Errno : 55;
-EISCONN:         Errno : 56;
-ENOTCONN:        Errno : 57;
-ESHUTDOWN:       Errno : 58;
-ETIMEDOUT:       Errno : 60;
-ECONNREFUSED:    Errno : 61;
-ELOOP:           Errno : 62;
-ENAMETOOLING:    Errno : 63;
-EHOSTDOWN:       Errno : 64;
-EHOSTUNREACH:    Errno : 65;
-ENOTEMPTY:       Errno : 66;
-EPROCLIM:        Errno : 67;
-EUSERS:          Errno : 68;
-EDQUOT:          Errno : 69;
-ESTALE:          Errno : 70;
-EBADRPC:         Errno : 72;
-ERPCMISMATCH:    Errno : 73;
-EPROGUNAVAIL:    Errno : 74;
-EPROGMISMATCH:   Errno : 75;
-EPROCUNAVAIL:    Errno : 76;
-ENOLCK:          Errno : 77;
-ENOSYS:          Errno : 78;
-EFTYPE:          Errno : 79;
-EAUTH:           Errno : 80;
-ENEEDAUTH:       Errno : 81;
-EIDRM:           Errno : 82;
-ENOMSG:          Errno : 83;
-EOVERFLOW:       Errno : 84;
-ECANCELED:       Errno : 85;
-EILSEQ:          Errno : 86;
-ENOATTR:         Errno : 87;
-EDOOFUS:         Errno : 88;
-EBADMSG:         Errno : 89;
-EMULTIHOP:       Errno : 90;
-ENOLINK:         Errno : 91;
-EPROTO:          Errno : 92;
-ENOTCAPABLE:     Errno : 93;
-ECAPMODE:        Errno : 94;
-ENOTRECOVERABLE: Errno : 95;
-EOWNERDEAD:      Errno : 96;
+ERROR_NONE:      Errno : 0
+EPERM:           Errno : 1
+ENOENT:          Errno : 2
+ESRCH:           Errno : 3
+EINTR:           Errno : 4
+EIO:             Errno : 5
+ENXIO:           Errno : 6
+E2BIG:           Errno : 7
+ENOEXEC:         Errno : 8
+EBADF:           Errno : 9
+ECHILD:          Errno : 10
+EBEADLK:         Errno : 11
+ENOMEM:          Errno : 12
+EACCESS:         Errno : 13
+EFAULT:          Errno : 14
+ENOTBLK:         Errno : 15
+EBUSY:           Errno : 16
+EEXIST:          Errno : 17
+EXDEV:           Errno : 18
+ENODEV:          Errno : 19
+ENOTDIR:         Errno : 20
+EISDIR:          Errno : 21
+EINVAL:          Errno : 22
+ENFILE:          Errno : 23
+EMFILE:          Errno : 24
+ENOTTY:          Errno : 25
+ETXTBSY:         Errno : 26
+EFBIG:           Errno : 27
+ENOSPC:          Errno : 28
+ESPIPE:          Errno : 29
+EROFS:           Errno : 30
+EMLINK:          Errno : 31
+EPIPE:           Errno : 32
+EDOM:            Errno : 33
+ERANGE:          Errno : 34 /* Result too large */
+EAGAIN:          Errno : 35
+EINPROGRESS:     Errno : 36
+EALREADY:        Errno : 37
+ENOTSOCK:        Errno : 38
+EDESTADDRREQ:    Errno : 39
+EMSGSIZE:        Errno : 40
+EPROTOTYPE:      Errno : 41
+ENOPROTOOPT:     Errno : 42
+EPROTONOSUPPORT: Errno : 43
+ESOCKTNOSUPPORT: Errno : 44
+EOPNOTSUPP:      Errno : 45
+EPFNOSUPPORT:    Errno : 46
+EAFNOSUPPORT:    Errno : 47
+EADDRINUSE:      Errno : 48
+EADDRNOTAVAIL:   Errno : 49
+ENETDOWN:        Errno : 50
+ENETUNREACH:     Errno : 51
+ENETRESET:       Errno : 52
+ECONNABORTED:    Errno : 53
+ECONNRESET:      Errno : 54
+ENOBUFS:         Errno : 55
+EISCONN:         Errno : 56
+ENOTCONN:        Errno : 57
+ESHUTDOWN:       Errno : 58
+ETIMEDOUT:       Errno : 60
+ECONNREFUSED:    Errno : 61
+ELOOP:           Errno : 62
+ENAMETOOLING:    Errno : 63
+EHOSTDOWN:       Errno : 64
+EHOSTUNREACH:    Errno : 65
+ENOTEMPTY:       Errno : 66
+EPROCLIM:        Errno : 67
+EUSERS:          Errno : 68
+EDQUOT:          Errno : 69
+ESTALE:          Errno : 70
+EBADRPC:         Errno : 72
+ERPCMISMATCH:    Errno : 73
+EPROGUNAVAIL:    Errno : 74
+EPROGMISMATCH:   Errno : 75
+EPROCUNAVAIL:    Errno : 76
+ENOLCK:          Errno : 77
+ENOSYS:          Errno : 78
+EFTYPE:          Errno : 79
+EAUTH:           Errno : 80
+ENEEDAUTH:       Errno : 81
+EIDRM:           Errno : 82
+ENOMSG:          Errno : 83
+EOVERFLOW:       Errno : 84
+ECANCELED:       Errno : 85
+EILSEQ:          Errno : 86
+ENOATTR:         Errno : 87
+EDOOFUS:         Errno : 88
+EBADMSG:         Errno : 89
+EMULTIHOP:       Errno : 90
+ENOLINK:         Errno : 91
+EPROTO:          Errno : 92
+ENOTCAPABLE:     Errno : 93
+ECAPMODE:        Errno : 94
+ENOTRECOVERABLE: Errno : 95
+EOWNERDEAD:      Errno : 96
 
-O_RDONLY   :: 0x00000;
-O_WRONLY   :: 0x00001;
-O_RDWR     :: 0x00002;
-O_CREATE   :: 0x00040;
-O_EXCL     :: 0x00080;
-O_NOCTTY   :: 0x00100;
-O_TRUNC    :: 0x00200;
-O_NONBLOCK :: 0x00800;
-O_APPEND   :: 0x00400;
-O_SYNC     :: 0x01000;
-O_ASYNC    :: 0x02000;
-O_CLOEXEC  :: 0x80000;
+O_RDONLY   :: 0x00000
+O_WRONLY   :: 0x00001
+O_RDWR     :: 0x00002
+O_CREATE   :: 0x00040
+O_EXCL     :: 0x00080
+O_NOCTTY   :: 0x00100
+O_TRUNC    :: 0x00200
+O_NONBLOCK :: 0x00800
+O_APPEND   :: 0x00400
+O_SYNC     :: 0x01000
+O_ASYNC    :: 0x02000
+O_CLOEXEC  :: 0x80000
 
 
-SEEK_SET   :: 0;
-SEEK_CUR   :: 1;
-SEEK_END   :: 2;
-SEEK_DATA  :: 3;
-SEEK_HOLE  :: 4;
-SEEK_MAX   :: SEEK_HOLE;
+SEEK_SET   :: 0
+SEEK_CUR   :: 1
+SEEK_END   :: 2
+SEEK_DATA  :: 3
+SEEK_HOLE  :: 4
+SEEK_MAX   :: SEEK_HOLE
 
 // NOTE: These are OS specific!
 // Do not mix these up!
-RTLD_LAZY         :: 0x001;
-RTLD_NOW          :: 0x002;
-//RTLD_BINDING_MASK :: 0x3; // Called MODEMASK in dlfcn.h
-RTLD_GLOBAL       :: 0x100;
-RTLD_LOCAL        :: 0x000;
-RTLD_TRACE        :: 0x200;
-RTLD_NODELETE     :: 0x01000;
-RTLD_NOLOAD       :: 0x02000;
+RTLD_LAZY         :: 0x001
+RTLD_NOW          :: 0x002
+//RTLD_BINDING_MASK :: 0x3 // Called MODEMASK in dlfcn.h
+RTLD_GLOBAL       :: 0x100
+RTLD_LOCAL        :: 0x000
+RTLD_TRACE        :: 0x200
+RTLD_NODELETE     :: 0x01000
+RTLD_NOLOAD       :: 0x02000
 
-args := _alloc_command_line_arguments();
+MAX_PATH :: 1024
+
+args := _alloc_command_line_arguments()
 
 Unix_File_Time :: struct {
-	seconds: i64,
+	seconds: time_t,
 	nanoseconds: c.long,
 }
 
-pid_t :: u32;
+dev_t :: u64
+ino_t :: u64
+nlink_t :: u64
+off_t :: i64
+mode_t :: u16
+pid_t :: u32
+uid_t :: u32
+gid_t :: u32
+blkcnt_t :: i64
+blksize_t :: i32
+fflags_t :: u32
+
+when ODIN_ARCH == .amd64 /* LP64 */ {
+	time_t :: i64
+} else {
+	time_t :: i32
+}
+
 
 OS_Stat :: struct {
-	device_id: u64,
-	serial: u64,
-	nlink: u64,
-	mode: u32,
+	device_id: dev_t,
+	serial: ino_t,
+	nlink: nlink_t,
+	mode: mode_t,
 	_padding0: i16,
-	uid: u32,
-	gid: u32,
+	uid: uid_t,
+	gid: gid_t,
 	_padding1: i32,
-	rdev: u64,
+	rdev: dev_t,
 
 	last_access: Unix_File_Time,
 	modified: Unix_File_Time,
 	status_change: Unix_File_Time,
 	birthtime: Unix_File_Time,
 
-	size: i64,
-	blocks: i64,
-	block_size: i32,
+	size: off_t,
+	blocks: blkcnt_t,
+	block_size: blksize_t,
 
-	flags: u32,
+	flags: fflags_t,
 	gen: u64,
-	lspare: i64,
+	lspare: [10]u64,
 }
 
+
+// since FreeBSD v12
+Dirent :: struct {
+	ino: ino_t,
+	off: off_t,
+	reclen: u16,
+	type: u8,
+	_pad0: u8,
+	namlen: u16,
+	_pad1: u16,
+	name: [256]byte,
+}
+
+Dir :: distinct rawptr // DIR*
+
 // File type
-S_IFMT   :: 0o170000; // Type of file mask
-S_IFIFO  :: 0o010000; // Named pipe (fifo)
-S_IFCHR  :: 0o020000; // Character special
-S_IFDIR  :: 0o040000; // Directory
-S_IFBLK  :: 0o060000; // Block special
-S_IFREG  :: 0o100000; // Regular
-S_IFLNK  :: 0o120000; // Symbolic link
-S_IFSOCK :: 0o140000; // Socket
-//S_ISVTX  :: 0o001000; // Save swapped text even after use
+S_IFMT   :: 0o170000 // Type of file mask
+S_IFIFO  :: 0o010000 // Named pipe (fifo)
+S_IFCHR  :: 0o020000 // Character special
+S_IFDIR  :: 0o040000 // Directory
+S_IFBLK  :: 0o060000 // Block special
+S_IFREG  :: 0o100000 // Regular
+S_IFLNK  :: 0o120000 // Symbolic link
+S_IFSOCK :: 0o140000 // Socket
+//S_ISVTX  :: 0o001000 // Save swapped text even after use
 
 // File mode
 // Read, write, execute/search by owner
-S_IRWXU :: 0o0700; // RWX mask for owner
-S_IRUSR :: 0o0400; // R for owner
-S_IWUSR :: 0o0200; // W for owner
-S_IXUSR :: 0o0100; // X for owner
+S_IRWXU :: 0o0700 // RWX mask for owner
+S_IRUSR :: 0o0400 // R for owner
+S_IWUSR :: 0o0200 // W for owner
+S_IXUSR :: 0o0100 // X for owner
 
 	// Read, write, execute/search by group
-S_IRWXG :: 0o0070; // RWX mask for group
-S_IRGRP :: 0o0040; // R for group
-S_IWGRP :: 0o0020; // W for group
-S_IXGRP :: 0o0010; // X for group
+S_IRWXG :: 0o0070 // RWX mask for group
+S_IRGRP :: 0o0040 // R for group
+S_IWGRP :: 0o0020 // W for group
+S_IXGRP :: 0o0010 // X for group
 
 	// Read, write, execute/search by others
-S_IRWXO :: 0o0007; // RWX mask for other
-S_IROTH :: 0o0004; // R for other
-S_IWOTH :: 0o0002; // W for other
-S_IXOTH :: 0o0001; // X for other
+S_IRWXO :: 0o0007 // RWX mask for other
+S_IROTH :: 0o0004 // R for other
+S_IWOTH :: 0o0002 // W for other
+S_IXOTH :: 0o0001 // X for other
 
-S_ISUID :: 0o4000; // Set user id on execution
-S_ISGID :: 0o2000; // Set group id on execution
-S_ISVTX :: 0o1000; // Directory restrcted delete
+S_ISUID :: 0o4000 // Set user id on execution
+S_ISGID :: 0o2000 // Set group id on execution
+S_ISVTX :: 0o1000 // Directory restrcted delete
 
 
-S_ISLNK  :: #force_inline proc(m: u32) -> bool do return (m & S_IFMT) == S_IFLNK;
-S_ISREG  :: #force_inline proc(m: u32) -> bool do return (m & S_IFMT) == S_IFREG;
-S_ISDIR  :: #force_inline proc(m: u32) -> bool do return (m & S_IFMT) == S_IFDIR;
-S_ISCHR  :: #force_inline proc(m: u32) -> bool do return (m & S_IFMT) == S_IFCHR;
-S_ISBLK  :: #force_inline proc(m: u32) -> bool do return (m & S_IFMT) == S_IFBLK;
-S_ISFIFO :: #force_inline proc(m: u32) -> bool do return (m & S_IFMT) == S_IFIFO;
-S_ISSOCK :: #force_inline proc(m: u32) -> bool do return (m & S_IFMT) == S_IFSOCK;
+S_ISLNK  :: #force_inline proc(m: mode_t) -> bool do return (m & S_IFMT) == S_IFLNK
+S_ISREG  :: #force_inline proc(m: mode_t) -> bool do return (m & S_IFMT) == S_IFREG
+S_ISDIR  :: #force_inline proc(m: mode_t) -> bool do return (m & S_IFMT) == S_IFDIR
+S_ISCHR  :: #force_inline proc(m: mode_t) -> bool do return (m & S_IFMT) == S_IFCHR
+S_ISBLK  :: #force_inline proc(m: mode_t) -> bool do return (m & S_IFMT) == S_IFBLK
+S_ISFIFO :: #force_inline proc(m: mode_t) -> bool do return (m & S_IFMT) == S_IFIFO
+S_ISSOCK :: #force_inline proc(m: mode_t) -> bool do return (m & S_IFMT) == S_IFSOCK
 
-F_OK :: 0; // Test for file existance
-X_OK :: 1; // Test for execute permission
-W_OK :: 2; // Test for write permission
-R_OK :: 4; // Test for read permission
+F_OK :: 0 // Test for file existance
+X_OK :: 1 // Test for execute permission
+W_OK :: 2 // Test for write permission
+R_OK :: 4 // Test for read permission
 
 foreign libc {
-	@(link_name="__error") __errno_location :: proc() -> ^int ---;
-	@(link_name="syscall")          syscall          :: proc(number: Syscall, #c_vararg args: ..any) -> int ---;
+	@(link_name="__error")		__errno_location :: proc() -> ^int ---
 
-	@(link_name="open")             _unix_open       :: proc(path: cstring, flags: c.int, mode: c.int) -> Handle ---;
-	@(link_name="close")            _unix_close         :: proc(fd: Handle) -> c.int ---;
-	@(link_name="read")             _unix_read          :: proc(fd: Handle, buf: rawptr, size: c.size_t) -> c.ssize_t ---;
-	@(link_name="write")            _unix_write         :: proc(fd: Handle, buf: rawptr, size: c.size_t) -> c.ssize_t ---;
-	@(link_name="lseek64")          _unix_seek          :: proc(fd: Handle, offset: i64, whence: c.int) -> i64 ---;
-	@(link_name="gettid")           _unix_gettid        :: proc() -> u64 ---;
-	@(link_name="getpagesize")      _unix_getpagesize   :: proc() -> c.int ---;
-	@(link_name="stat64")           _unix_stat          :: proc(path: cstring, stat: ^OS_Stat) -> c.int ---;
-	@(link_name="fstat")            _unix_fstat         :: proc(fd: Handle, stat: ^OS_Stat) -> c.int ---;
-	@(link_name="access")           _unix_access        :: proc(path: cstring, mask: c.int) -> c.int ---;
+	@(link_name="open")             _unix_open       :: proc(path: cstring, flags: c.int, mode: c.int) -> Handle ---
+	@(link_name="close")            _unix_close         :: proc(fd: Handle) -> c.int ---
+	@(link_name="read")             _unix_read          :: proc(fd: Handle, buf: rawptr, size: c.size_t) -> c.ssize_t ---
+	@(link_name="write")            _unix_write         :: proc(fd: Handle, buf: rawptr, size: c.size_t) -> c.ssize_t ---
+	@(link_name="lseek")            _unix_seek          :: proc(fd: Handle, offset: i64, whence: c.int) -> i64 ---
+	@(link_name="getpagesize")      _unix_getpagesize   :: proc() -> c.int ---
+	@(link_name="stat")             _unix_stat          :: proc(path: cstring, stat: ^OS_Stat) -> c.int ---
+	@(link_name="lstat")            _unix_lstat         :: proc(path: cstring, sb: ^OS_Stat) -> c.int ---
+	@(link_name="fstat")            _unix_fstat         :: proc(fd: Handle, stat: ^OS_Stat) -> c.int ---
+	@(link_name="readlink")         _unix_readlink      :: proc(path: cstring, buf: ^byte, bufsiz: c.size_t) -> c.ssize_t ---
+	@(link_name="access")           _unix_access        :: proc(path: cstring, mask: c.int) -> c.int ---
+	@(link_name="getcwd")           _unix_getcwd        :: proc(buf: cstring, len: c.size_t) -> cstring ---
+	@(link_name="chdir")            _unix_chdir         :: proc(buf: cstring) -> c.int ---
+	@(link_name="rename")           _unix_rename        :: proc(old, new: cstring) -> c.int ---
+	@(link_name="unlink")           _unix_unlink        :: proc(path: cstring) -> c.int ---
+	@(link_name="rmdir")            _unix_rmdir         :: proc(path: cstring) -> c.int ---
+	@(link_name="mkdir")            _unix_mkdir         :: proc(path: cstring, mode: mode_t) -> c.int ---
+	
+	@(link_name="fdopendir")        _unix_fdopendir     :: proc(fd: Handle) -> Dir ---
+	@(link_name="closedir")         _unix_closedir      :: proc(dirp: Dir) -> c.int ---
+	@(link_name="rewinddir")        _unix_rewinddir     :: proc(dirp: Dir) ---
+	@(link_name="readdir_r")        _unix_readdir_r     :: proc(dirp: Dir, entry: ^Dirent, result: ^^Dirent) -> c.int ---
 
-	@(link_name="malloc")           _unix_malloc        :: proc(size: c.size_t) -> rawptr ---;
-	@(link_name="calloc")           _unix_calloc        :: proc(num, size: c.size_t) -> rawptr ---;
-	@(link_name="free")             _unix_free          :: proc(ptr: rawptr) ---;
-	@(link_name="realloc")          _unix_realloc       :: proc(ptr: rawptr, size: c.size_t) -> rawptr ---;
-	@(link_name="getenv")           _unix_getenv        :: proc(cstring) -> cstring ---;
-	@(link_name="getcwd")           _unix_getcwd        :: proc(buf: cstring, len: c.size_t) -> cstring ---;
-	@(link_name="chdir")            _unix_chdir         :: proc(buf: cstring) -> c.int ---;
+	@(link_name="malloc")           _unix_malloc        :: proc(size: c.size_t) -> rawptr ---
+	@(link_name="calloc")           _unix_calloc        :: proc(num, size: c.size_t) -> rawptr ---
+	@(link_name="free")             _unix_free          :: proc(ptr: rawptr) ---
+	@(link_name="realloc")          _unix_realloc       :: proc(ptr: rawptr, size: c.size_t) -> rawptr ---
+	
+	@(link_name="getenv")           _unix_getenv        :: proc(cstring) -> cstring ---
+	@(link_name="realpath")         _unix_realpath      :: proc(path: cstring, resolved_path: rawptr) -> rawptr ---
 
-	@(link_name="exit")             _unix_exit          :: proc(status: c.int) -> ! ---;
+	@(link_name="exit")             _unix_exit          :: proc(status: c.int) -> ! ---
 }
 foreign dl {
-	@(link_name="dlopen")           _unix_dlopen        :: proc(filename: cstring, flags: c.int) -> rawptr ---;
-	@(link_name="dlsym")            _unix_dlsym         :: proc(handle: rawptr, symbol: cstring) -> rawptr ---;
-	@(link_name="dlclose")          _unix_dlclose       :: proc(handle: rawptr) -> c.int ---;
-	@(link_name="dlerror")          _unix_dlerror       :: proc() -> cstring ---;
+	@(link_name="dlopen")           _unix_dlopen        :: proc(filename: cstring, flags: c.int) -> rawptr ---
+	@(link_name="dlsym")            _unix_dlsym         :: proc(handle: rawptr, symbol: cstring) -> rawptr ---
+	@(link_name="dlclose")          _unix_dlclose       :: proc(handle: rawptr) -> c.int ---
+	@(link_name="dlerror")          _unix_dlerror       :: proc() -> cstring ---
 
-	@(link_name="pthread_getthreadid_np") pthread_getthreadid_np :: proc() -> c.int ---;
+	@(link_name="pthread_getthreadid_np") pthread_getthreadid_np :: proc() -> c.int ---
 }
 
 is_path_separator :: proc(r: rune) -> bool {
-	return r == '/';
+	return r == '/'
 }
 
 get_last_error :: proc() -> int {
-	return __errno_location()^;
+	return __errno_location()^
 }
 
 open :: proc(path: string, flags: int = O_RDONLY, mode: int = 0) -> (Handle, Errno) {
-	cstr := strings.clone_to_cstring(path);
-	handle := _unix_open(cstr, c.int(flags), c.int(mode));
-	delete(cstr);
+	cstr := strings.clone_to_cstring(path, context.temp_allocator)
+	handle := _unix_open(cstr, c.int(flags), c.int(mode))
 	if handle == -1 {
-		return INVALID_HANDLE, Errno(get_last_error());
+		return INVALID_HANDLE, Errno(get_last_error())
 	}
-	return handle, ERROR_NONE;
+	return handle, ERROR_NONE
 }
 
 close :: proc(fd: Handle) -> Errno {
-	result := _unix_close(fd);
+	result := _unix_close(fd)
 	if result == -1 {
-		return Errno(get_last_error());
+		return Errno(get_last_error())
 	}
-	return ERROR_NONE;
+	return ERROR_NONE
 }
 
 read :: proc(fd: Handle, data: []byte) -> (int, Errno) {
-	bytes_read := _unix_read(fd, &data[0], c.size_t(len(data)));
+	bytes_read := _unix_read(fd, &data[0], c.size_t(len(data)))
 	if bytes_read == -1 {
-		return -1, Errno(get_last_error());
+		return -1, Errno(get_last_error())
 	}
-	return int(bytes_read), ERROR_NONE;
+	return int(bytes_read), ERROR_NONE
 }
 
 write :: proc(fd: Handle, data: []byte) -> (int, Errno) {
 	if len(data) == 0 {
-		return 0, ERROR_NONE;
+		return 0, ERROR_NONE
 	}
-	bytes_written := _unix_write(fd, &data[0], c.size_t(len(data)));
+	bytes_written := _unix_write(fd, &data[0], c.size_t(len(data)))
 	if bytes_written == -1 {
-		return -1, Errno(get_last_error());
+		return -1, Errno(get_last_error())
 	}
-	return int(bytes_written), ERROR_NONE;
+	return int(bytes_written), ERROR_NONE
 }
 
 seek :: proc(fd: Handle, offset: i64, whence: int) -> (i64, Errno) {
-	res := _unix_seek(fd, offset, c.int(whence));
+	res := _unix_seek(fd, offset, c.int(whence))
 	if res == -1 {
-		return -1, Errno(get_last_error());
+		return -1, Errno(get_last_error())
 	}
-	return res, ERROR_NONE;
+	return res, ERROR_NONE
 }
 
 file_size :: proc(fd: Handle) -> (i64, Errno) {
-	s, err := fstat(fd);
+	s, err := fstat(fd)
 	if err != ERROR_NONE {
-		return -1, err;
+		return -1, err
 	}
-	return s.size, ERROR_NONE;
+	return s.size, ERROR_NONE
 }
 
-stdin: Handle = 0;
-stdout: Handle = 1;
-stderr: Handle = 2;
-
-last_write_time :: proc(fd: Handle) -> (File_Time, Errno) {
-	s, err := fstat(fd);
-	if err != ERROR_NONE {
-		return 0, err;
+rename :: proc(old_path, new_path: string) -> Errno {
+	old_path_cstr := strings.clone_to_cstring(old_path, context.temp_allocator)
+	new_path_cstr := strings.clone_to_cstring(new_path, context.temp_allocator)
+	res := _unix_rename(old_path_cstr, new_path_cstr)
+	if res == -1 {
+		return Errno(get_last_error())
 	}
-	modified := s.modified.seconds * 1_000_000_000 + s.modified.nanoseconds;
-	return File_Time(modified), ERROR_NONE;
+	return ERROR_NONE
+}
+
+remove :: proc(path: string) -> Errno {
+	path_cstr := strings.clone_to_cstring(path, context.temp_allocator)
+	res := _unix_unlink(path_cstr)
+	if res == -1 {
+		return Errno(get_last_error())
+	}
+	return ERROR_NONE
+}
+
+make_directory :: proc(path: string, mode: mode_t = 0o775) -> Errno {
+	path_cstr := strings.clone_to_cstring(path, context.temp_allocator)
+	res := _unix_mkdir(path_cstr, mode)
+	if res == -1 {
+		return Errno(get_last_error())
+	}
+	return ERROR_NONE
+}
+
+remove_directory :: proc(path: string) -> Errno {
+	path_cstr := strings.clone_to_cstring(path, context.temp_allocator)
+	res := _unix_rmdir(path_cstr)
+	if res == -1 {
+		return Errno(get_last_error())
+	}
+	return ERROR_NONE
+}
+
+is_file_handle :: proc(fd: Handle) -> bool {
+	s, err := _fstat(fd)
+	if err != ERROR_NONE {
+		return false
+	}
+	return S_ISREG(s.mode)
+}
+
+is_file_path :: proc(path: string, follow_links: bool = true) -> bool {
+	s: OS_Stat
+	err: Errno
+	if follow_links {
+		s, err = _stat(path)
+	} else {
+		s, err = _lstat(path)
+	}
+	if err != ERROR_NONE {
+		return false
+	}
+	return S_ISREG(s.mode)
+}
+
+is_dir_handle :: proc(fd: Handle) -> bool {
+	s, err := _fstat(fd)
+	if err != ERROR_NONE {
+		return false
+	}
+	return S_ISDIR(s.mode)
+}
+
+is_dir_path :: proc(path: string, follow_links: bool = true) -> bool {
+	s: OS_Stat
+	err: Errno
+	if follow_links {
+		s, err = _stat(path)
+	} else {
+		s, err = _lstat(path)
+	}
+	if err != ERROR_NONE {
+		return false
+	}
+	return S_ISDIR(s.mode)
+}
+
+is_file :: proc {is_file_path, is_file_handle}
+is_dir :: proc {is_dir_path, is_dir_handle}
+
+// NOTE(bill): Uses startup to initialize it
+
+stdin: Handle  = 0
+stdout: Handle = 1
+stderr: Handle = 2
+
+/* TODO(zangent): Implement these!                                                                                   
+last_write_time :: proc(fd: Handle) -> File_Time {}                                                                  
+last_write_time_by_name :: proc(name: string) -> File_Time {}                                                        
+*/
+last_write_time :: proc(fd: Handle) -> (File_Time, Errno) {
+	s, err := _fstat(fd)
+	if err != ERROR_NONE {
+		return 0, err
+	}
+	modified := s.modified.seconds * 1_000_000_000 + s.modified.nanoseconds
+	return File_Time(modified), ERROR_NONE
 }
 
 last_write_time_by_name :: proc(name: string) -> (File_Time, Errno) {
-	s, err := stat(name);
+	s, err := _stat(name)
 	if err != ERROR_NONE {
-		return 0, err;
+		return 0, err
 	}
-	modified := s.modified.seconds * 1_000_000_000 + s.modified.nanoseconds;
-	return File_Time(modified), ERROR_NONE;
+	modified := s.modified.seconds * 1_000_000_000 + s.modified.nanoseconds
+	return File_Time(modified), ERROR_NONE
 }
 
-stat :: proc(path: string) -> (OS_Stat, Errno) {
-	cstr := strings.clone_to_cstring(path);
-	defer delete(cstr);
-
-	s: OS_Stat;
-	result := _unix_stat(cstr, &s);
+@private
+_stat :: proc(path: string) -> (OS_Stat, Errno) {
+	cstr := strings.clone_to_cstring(path, context.temp_allocator)
+	s: OS_Stat = ---
+	result := _unix_lstat(cstr, &s)
 	if result == -1 {
-		return s, Errno(get_last_error());
+		return s, Errno(get_last_error())
 	}
-	return s, ERROR_NONE;
+	return s, ERROR_NONE
 }
 
-fstat :: proc(fd: Handle) -> (OS_Stat, Errno) {
-	s: OS_Stat;
-	result := _unix_fstat(fd, &s);
-	if result == -1 {
-		return s, Errno(get_last_error());
+@private
+_lstat :: proc(path: string) -> (OS_Stat, Errno) {
+	cstr := strings.clone_to_cstring(path, context.temp_allocator)
+	
+	// deliberately uninitialized
+	s: OS_Stat = ---
+	res := _unix_lstat(cstr, &s)
+	if res == -1 {
+		return s, Errno(get_last_error())
 	}
-	return s, ERROR_NONE;
+	return s, ERROR_NONE
+}
+
+@private
+_fstat :: proc(fd: Handle) -> (OS_Stat, Errno) {
+	s: OS_Stat = ---
+	result := _unix_fstat(fd, &s)
+	if result == -1 {
+		return s, Errno(get_last_error())
+	}
+	return s, ERROR_NONE
+}
+
+@private
+_fdopendir :: proc(fd: Handle) -> (Dir, Errno) {
+	dirp := _unix_fdopendir(fd)
+	if dirp == cast(Dir)nil {
+		return nil, Errno(get_last_error())
+	}
+	return dirp, ERROR_NONE
+}
+
+@private
+_closedir :: proc(dirp: Dir) -> Errno {
+	rc := _unix_closedir(dirp)
+	if rc != 0 {
+		return Errno(get_last_error())
+	}
+	return ERROR_NONE
+}
+
+@private
+_rewinddir :: proc(dirp: Dir) {
+	_unix_rewinddir(dirp)
+}
+
+@private
+_readdir :: proc(dirp: Dir) -> (entry: Dirent, err: Errno, end_of_stream: bool) {
+	result: ^Dirent
+	rc := _unix_readdir_r(dirp, &entry, &result)
+
+	if rc != 0 {
+		err = Errno(get_last_error())
+		return
+	}
+	err = ERROR_NONE
+
+	if result == nil {
+		end_of_stream = true
+		return
+	}
+
+	return
+}
+
+@private
+_readlink :: proc(path: string) -> (string, Errno) {
+	path_cstr := strings.clone_to_cstring(path, context.temp_allocator)
+
+	bufsz : uint = MAX_PATH
+	buf := make([]byte, MAX_PATH)
+	for {
+		rc := _unix_readlink(path_cstr, &(buf[0]), bufsz)
+		if rc == -1 {
+			delete(buf)
+			return "", Errno(get_last_error())
+		} else if rc == int(bufsz) {
+			bufsz += MAX_PATH
+			delete(buf)
+			buf = make([]byte, bufsz)
+		} else {
+			return strings.string_from_ptr(&buf[0], rc), ERROR_NONE
+		}	
+	}
+	unreachable()
+}
+
+// XXX FreeBSD
+absolute_path_from_handle :: proc(fd: Handle) -> (string, Errno) {
+	return "", Errno(ENOSYS)
+}
+
+absolute_path_from_relative :: proc(rel: string) -> (path: string, err: Errno) {
+	rel := rel
+	if rel == "" {
+		rel = "."
+	}
+
+	rel_cstr := strings.clone_to_cstring(rel, context.temp_allocator)
+
+	path_ptr := _unix_realpath(rel_cstr, nil)
+	if path_ptr == nil {
+		return "", Errno(get_last_error())
+	}
+	defer _unix_free(path_ptr)
+
+	path_cstr := transmute(cstring)path_ptr
+	path = strings.clone( string(path_cstr) )
+
+	return path, ERROR_NONE
 }
 
 access :: proc(path: string, mask: int) -> (bool, Errno) {
-	cstr := strings.clone_to_cstring(path);
-	defer delete(cstr);
-	result := _unix_access(cstr, c.int(mask));
+	cstr := strings.clone_to_cstring(path, context.temp_allocator)
+	result := _unix_access(cstr, c.int(mask))
 	if result == -1 {
-		return false, Errno(get_last_error());
+		return false, Errno(get_last_error())
 	}
-	return true, ERROR_NONE;
+	return true, ERROR_NONE
 }
 
 heap_alloc :: proc(size: int) -> rawptr {
-	assert(size >= 0);
-	return _unix_calloc(1, c.size_t(size));
+	assert(size >= 0)
+	return _unix_calloc(1, c.size_t(size))
 }
 
 heap_resize :: proc(ptr: rawptr, new_size: int) -> rawptr {
-	return _unix_realloc(ptr, c.size_t(new_size));
+	// NOTE: _unix_realloc doesn't guarantee new memory will be zeroed on
+	// POSIX platforms. Ensure your caller takes this into account.
+	return _unix_realloc(ptr, c.size_t(new_size))
 }
 
 heap_free :: proc(ptr: rawptr) {
-	_unix_free(ptr);
+	_unix_free(ptr)
 }
 
 getenv :: proc(name: string) -> (string, bool) {
-	path_str := strings.clone_to_cstring(name);
-	defer delete(path_str);
-	cstr := _unix_getenv(path_str);
+	path_str := strings.clone_to_cstring(name, context.temp_allocator)
+	cstr := _unix_getenv(path_str)
 	if cstr == nil {
-		return "", false;
+		return "", false
 	}
-	return string(cstr), true;
+	return string(cstr), true
 }
 
 get_current_directory :: proc() -> string {
 	// NOTE(tetra): I would use PATH_MAX here, but I was not able to find
 	// an authoritative value for it across all systems.
 	// The largest value I could find was 4096, so might as well use the page size.
-	page_size := get_page_size();
-	buf := make([dynamic]u8, page_size);
+	page_size := get_page_size()
+	buf := make([dynamic]u8, page_size)
 	#no_bounds_check for {
-		cwd := _unix_getcwd(cstring(&buf[0]), c.size_t(len(buf)));
+		cwd := _unix_getcwd(cstring(&buf[0]), c.size_t(len(buf)))
 		if cwd != nil {
-			return string(cwd);
+			return string(cwd)
 		}
 		if Errno(get_last_error()) != ERANGE {
-			return "";
+			return ""
 		}
-		resize(&buf, len(buf)+page_size);
+		resize(&buf, len(buf)+page_size)
 	}
-	unreachable();
+	unreachable()
 }
 
 set_current_directory :: proc(path: string) -> (err: Errno) {
-	cstr := strings.clone_to_cstring(path, context.temp_allocator);
-	res := _unix_chdir(cstr);
-	if res == -1 do return Errno(get_last_error());
-	return ERROR_NONE;
+	cstr := strings.clone_to_cstring(path, context.temp_allocator)
+	res := _unix_chdir(cstr)
+	if res == -1 do return Errno(get_last_error())
+	return ERROR_NONE
 }
 
 exit :: proc "contextless" (code: int) -> ! {
-	_unix_exit(c.int(code));
+	runtime._cleanup_runtime_contextless()
+	_unix_exit(c.int(code))
 }
 
 current_thread_id :: proc "contextless" () -> int {
-	return cast(int) pthread_getthreadid_np();
+	return cast(int) pthread_getthreadid_np()
 }
 
 dlopen :: proc(filename: string, flags: int) -> rawptr {
-	cstr := strings.clone_to_cstring(filename);
-	defer delete(cstr);
-	handle := _unix_dlopen(cstr, c.int(flags));
-	return handle;
+	cstr := strings.clone_to_cstring(filename, context.temp_allocator)
+	handle := _unix_dlopen(cstr, c.int(flags))
+	return handle
 }
 dlsym :: proc(handle: rawptr, symbol: string) -> rawptr {
-	assert(handle != nil);
-	cstr := strings.clone_to_cstring(symbol);
-	defer delete(cstr);
-	proc_handle := _unix_dlsym(handle, cstr);
-	return proc_handle;
+	assert(handle != nil)
+	cstr := strings.clone_to_cstring(symbol, context.temp_allocator)
+	proc_handle := _unix_dlsym(handle, cstr)
+	return proc_handle
 }
 dlclose :: proc(handle: rawptr) -> bool {
-	assert(handle != nil);
-	return _unix_dlclose(handle) == 0;
+	assert(handle != nil)
+	return _unix_dlclose(handle) == 0
 }
 dlerror :: proc() -> string {
-	return string(_unix_dlerror());
+	return string(_unix_dlerror())
 }
 
 get_page_size :: proc() -> int {
 	// NOTE(tetra): The page size never changes, so why do anything complicated
 	// if we don't have to.
-	@static page_size := -1;
-	if page_size != -1 do return page_size;
+	@static page_size := -1
+	if page_size != -1 do return page_size
 
-	page_size = int(_unix_getpagesize());
-	return page_size;
+	page_size = int(_unix_getpagesize())
+	return page_size
 }
 
 
 _alloc_command_line_arguments :: proc() -> []string {
-	res := make([]string, len(runtime.args__));
+	res := make([]string, len(runtime.args__))
 	for arg, i in runtime.args__ {
-		res[i] = string(arg);
+		res[i] = string(arg)
 	}
-	return res;
+	return res
 }
-

core/os/os_linux.odin

@@ -11,6 +11,7 @@ import "core:intrinsics"
 import "core:sys/unix"
 
 Handle    :: distinct i32
+Pid       :: distinct i32
 File_Time :: distinct u64
 Errno     :: distinct i32
 
@@ -150,6 +151,8 @@ ERFKILL: 		Errno : 132	/* Operation not possible due to RF-kill */
 
 EHWPOISON: 		Errno : 133	/* Memory page has hardware error */
 
+ADDR_NO_RANDOMIZE :: 0x40000
+
 O_RDONLY   :: 0x00000
 O_WRONLY   :: 0x00001
 O_RDWR     :: 0x00002
@@ -266,15 +269,28 @@ X_OK :: 1 // Test for execute permission
 W_OK :: 2 // Test for write permission
 R_OK :: 4 // Test for read permission
 
-AT_FDCWD            :: -100
+AT_FDCWD            :: ~uintptr(99)	/* -100 */
 AT_REMOVEDIR        :: uintptr(0x200)
 AT_SYMLINK_NOFOLLOW :: uintptr(0x100)
 
+_unix_personality :: proc(persona: u64) -> int {
+	return int(intrinsics.syscall(unix.SYS_personality, uintptr(persona)))
+}
+
+_unix_fork :: proc() -> Pid {
+	when ODIN_ARCH != .arm64 {
+		res := int(intrinsics.syscall(unix.SYS_fork))
+	} else {
+		res := int(intrinsics.syscall(unix.SYS_clone, unix.SIGCHLD))
+	}
+	return -1 if res < 0 else Pid(res)
+}
+
 _unix_open :: proc(path: cstring, flags: int, mode: int = 0o000) -> Handle {
-	when ODIN_ARCH != "arm64" {
+	when ODIN_ARCH != .arm64 {
 		res := int(intrinsics.syscall(unix.SYS_open, uintptr(rawptr(path)), uintptr(flags), uintptr(mode)))
 	} else { // NOTE: arm64 does not have open
-		res := int(intrinsics.syscall(unix.SYS_openat, uintptr(AT_FDCWD), uintptr(rawptr(path), uintptr(flags), uintptr(mode))))
+		res := int(intrinsics.syscall(unix.SYS_openat, AT_FDCWD, uintptr(rawptr(path)), uintptr(flags), uintptr(mode)))
 	}
 	return -1 if res < 0 else Handle(res)
 }
@@ -292,7 +308,7 @@ _unix_write :: proc(fd: Handle, buf: rawptr, size: uint) -> int {
 }
 
 _unix_seek :: proc(fd: Handle, offset: i64, whence: int) -> i64 {
-	when ODIN_ARCH == "amd64" || ODIN_ARCH == "arm64" {
+	when ODIN_ARCH == .amd64 || ODIN_ARCH == .arm64 {
 		return i64(intrinsics.syscall(unix.SYS_lseek, uintptr(fd), uintptr(offset), uintptr(whence)))
 	} else {
 		low := uintptr(offset & 0xFFFFFFFF)
@@ -304,17 +320,17 @@ _unix_seek :: proc(fd: Handle, offset: i64, whence: int) -> i64 {
 }
 
 _unix_stat :: proc(path: cstring, stat: ^OS_Stat) -> int {
-	when ODIN_ARCH == "amd64" {
+	when ODIN_ARCH == .amd64 {
 		return int(intrinsics.syscall(unix.SYS_stat, uintptr(rawptr(path)), uintptr(stat)))
-	} else when ODIN_ARCH != "arm64" {
+	} else when ODIN_ARCH != .arm64 {
 		return int(intrinsics.syscall(unix.SYS_stat64, uintptr(rawptr(path)), uintptr(stat)))
 	} else { // NOTE: arm64 does not have stat
-		return int(intrinsics.syscall(unix.SYS_fstatat, uintptr(AT_FDCWD), uintptr(rawptr(path)), uintptr(stat), 0))
+		return int(intrinsics.syscall(unix.SYS_fstatat, AT_FDCWD, uintptr(rawptr(path)), uintptr(stat), 0))
 	}
 }
 
 _unix_fstat :: proc(fd: Handle, stat: ^OS_Stat) -> int {
-	when ODIN_ARCH == "amd64" || ODIN_ARCH == "arm64" {
+	when ODIN_ARCH == .amd64 || ODIN_ARCH == .arm64 {
 		return int(intrinsics.syscall(unix.SYS_fstat, uintptr(fd), uintptr(stat)))
 	} else {
 		return int(intrinsics.syscall(unix.SYS_fstat64, uintptr(fd), uintptr(stat)))
@@ -322,28 +338,28 @@ _unix_fstat :: proc(fd: Handle, stat: ^OS_Stat) -> int {
 }
 
 _unix_lstat :: proc(path: cstring, stat: ^OS_Stat) -> int {
-	when ODIN_ARCH == "amd64" {
+	when ODIN_ARCH == .amd64 {
 		return int(intrinsics.syscall(unix.SYS_lstat, uintptr(rawptr(path)), uintptr(stat)))
-	} else when ODIN_ARCH != "arm64" {
+	} else when ODIN_ARCH != .arm64 {
 		return int(intrinsics.syscall(unix.SYS_lstat64, uintptr(rawptr(path)), uintptr(stat)))
 	} else { // NOTE: arm64 does not have any lstat
-		return int(intrinsics.syscall(unix.SYS_fstatat, uintptr(AT_FDCWD), uintptr(rawptr(path)), uintptr(stat), AT_SYMLINK_NOFOLLOW))
+		return int(intrinsics.syscall(unix.SYS_fstatat, AT_FDCWD, uintptr(rawptr(path)), uintptr(stat), AT_SYMLINK_NOFOLLOW))
 	}
 }
 
 _unix_readlink :: proc(path: cstring, buf: rawptr, bufsiz: uint) -> int {
-	when ODIN_ARCH != "arm64" {
+	when ODIN_ARCH != .arm64 {
 		return int(intrinsics.syscall(unix.SYS_readlink, uintptr(rawptr(path)), uintptr(buf), uintptr(bufsiz)))
 	} else { // NOTE: arm64 does not have readlink
-		return int(intrinsics.syscall(unix.SYS_readlinkat, uintptr(AT_FDCWD), uintptr(rawptr(path)), uintptr(buf), uintptr(bufsiz)))
+		return int(intrinsics.syscall(unix.SYS_readlinkat, AT_FDCWD, uintptr(rawptr(path)), uintptr(buf), uintptr(bufsiz)))
 	}
 }
 
 _unix_access :: proc(path: cstring, mask: int) -> int {
-	when ODIN_ARCH != "arm64" {
+	when ODIN_ARCH != .arm64 {
 		return int(intrinsics.syscall(unix.SYS_access, uintptr(rawptr(path)), uintptr(mask)))
 	} else { // NOTE: arm64 does not have access
-		return int(intrinsics.syscall(unix.SYS_faccessat, uintptr(AT_FDCWD), uintptr(rawptr(path)), uintptr(mask)))
+		return int(intrinsics.syscall(unix.SYS_faccessat, AT_FDCWD, uintptr(rawptr(path)), uintptr(mask)))
 	}
 }
 
@@ -356,34 +372,34 @@ _unix_chdir :: proc(path: cstring) -> int {
 }
 
 _unix_rename :: proc(old, new: cstring) -> int {
-	when ODIN_ARCH != "arm64" {
+	when ODIN_ARCH != .arm64 {
 		return int(intrinsics.syscall(unix.SYS_rename, uintptr(rawptr(old)), uintptr(rawptr(new))))
 	} else { // NOTE: arm64 does not have rename
-		return int(intrinsics.syscall(unix.SYS_renameat, uintptr(AT_FDCWD), uintptr(rawptr(old)), uintptr(rawptr(new))))
+		return int(intrinsics.syscall(unix.SYS_renameat, AT_FDCWD, uintptr(rawptr(old)), uintptr(rawptr(new))))
 	}
 }
 
 _unix_unlink :: proc(path: cstring) -> int {
-	when ODIN_ARCH != "arm64" {
+	when ODIN_ARCH != .arm64 {
 		return int(intrinsics.syscall(unix.SYS_unlink, uintptr(rawptr(path))))
 	} else { // NOTE: arm64 does not have unlink
-		return int(intrinsics.syscall(unix.SYS_unlinkat, uintptr(AT_FDCWD), uintptr(rawptr(path), 0)))
+		return int(intrinsics.syscall(unix.SYS_unlinkat, AT_FDCWD, uintptr(rawptr(path)), 0))
 	}
 }
 
 _unix_rmdir :: proc(path: cstring) -> int {
-	when ODIN_ARCH != "arm64" {
+	when ODIN_ARCH != .arm64 {
 		return int(intrinsics.syscall(unix.SYS_rmdir, uintptr(rawptr(path))))
 	} else { // NOTE: arm64 does not have rmdir
-		return int(intrinsics.syscall(unix.SYS_unlinkat, uintptr(AT_FDCWD), uintptr(rawptr(path)), AT_REMOVEDIR))
+		return int(intrinsics.syscall(unix.SYS_unlinkat, AT_FDCWD, uintptr(rawptr(path)), AT_REMOVEDIR))
 	}
 }
 
 _unix_mkdir :: proc(path: cstring, mode: u32) -> int {
-	when ODIN_ARCH != "arm64" {
+	when ODIN_ARCH != .arm64 {
 		return int(intrinsics.syscall(unix.SYS_mkdir, uintptr(rawptr(path)), uintptr(mode)))
 	} else { // NOTE: arm64 does not have mkdir
-		return int(intrinsics.syscall(unix.SYS_mkdirat, uintptr(AT_FDCWD), uintptr(rawptr(path)), uintptr(mode)))
+		return int(intrinsics.syscall(unix.SYS_mkdirat, AT_FDCWD, uintptr(rawptr(path)), uintptr(mode)))
 	}
 }
 
@@ -431,10 +447,25 @@ get_last_error :: proc() -> int {
 	return __errno_location()^
 }
 
+personality :: proc(persona: u64) -> (Errno) {
+	res := _unix_personality(persona)
+	if res == -1 {
+		return _get_errno(res)
+	}
+	return ERROR_NONE
+}
+
+fork :: proc() -> (Pid, Errno) {
+	pid := _unix_fork()
+	if pid == -1 {
+		return -1, _get_errno(int(pid))
+	}
+	return pid, ERROR_NONE
+}
+
 open :: proc(path: string, flags: int = O_RDONLY, mode: int = 0) -> (Handle, Errno) {
-	cstr := strings.clone_to_cstring(path)
+	cstr := strings.clone_to_cstring(path, context.temp_allocator)
 	handle := _unix_open(cstr, flags, mode)
-	defer delete(cstr)
 	if handle < 0 {
 		return INVALID_HANDLE, _get_errno(int(handle))
 	}
@@ -473,11 +504,13 @@ seek :: proc(fd: Handle, offset: i64, whence: int) -> (i64, Errno) {
 }
 
 file_size :: proc(fd: Handle) -> (i64, Errno) {
-	s, err := _fstat(fd)
-	if err != ERROR_NONE {
-		return 0, err
-	}
-	return max(s.size, 0), ERROR_NONE
+    // deliberately uninitialized; the syscall fills this buffer for us
+    s: OS_Stat = ---
+    result := _unix_fstat(fd, &s)
+    if result < 0 {
+        return 0, _get_errno(result)
+    }
+    return max(s.size, 0), ERROR_NONE
 }
 
 rename :: proc(old_path, new_path: string) -> Errno {
@@ -580,10 +613,10 @@ last_write_time_by_name :: proc(name: string) -> (File_Time, Errno) {
 
 @private
 _stat :: proc(path: string) -> (OS_Stat, Errno) {
-	cstr := strings.clone_to_cstring(path)
-	defer delete(cstr)
+	cstr := strings.clone_to_cstring(path, context.temp_allocator)
 
-	s: OS_Stat
+	// deliberately uninitialized; the syscall fills this buffer for us
+	s: OS_Stat = ---
 	result := _unix_stat(cstr, &s)
 	if result < 0 {
 		return s, _get_errno(result)
@@ -593,10 +626,10 @@ _stat :: proc(path: string) -> (OS_Stat, Errno) {
 
 @private
 _lstat :: proc(path: string) -> (OS_Stat, Errno) {
-	cstr := strings.clone_to_cstring(path)
-	defer delete(cstr)
+	cstr := strings.clone_to_cstring(path, context.temp_allocator)
 
-	s: OS_Stat
+	// deliberately uninitialized; the syscall fills this buffer for us
+	s: OS_Stat = ---
 	result := _unix_lstat(cstr, &s)
 	if result < 0 {
 		return s, _get_errno(result)
@@ -606,7 +639,8 @@ _lstat :: proc(path: string) -> (OS_Stat, Errno) {
 
 @private
 _fstat :: proc(fd: Handle) -> (OS_Stat, Errno) {
-	s: OS_Stat
+	// deliberately uninitialized; the syscall fills this buffer for us
+	s: OS_Stat = ---
 	result := _unix_fstat(fd, &s)
 	if result < 0 {
 		return s, _get_errno(result)
@@ -659,8 +693,7 @@ _readdir :: proc(dirp: Dir) -> (entry: Dirent, err: Errno, end_of_stream: bool)
 
 @private
 _readlink :: proc(path: string) -> (string, Errno) {
-	path_cstr := strings.clone_to_cstring(path)
-	defer delete(path_cstr)
+	path_cstr := strings.clone_to_cstring(path, context.temp_allocator)
 
 	bufsz : uint = 256
 	buf := make([]byte, bufsz)
@@ -696,8 +729,7 @@ absolute_path_from_relative :: proc(rel: string) -> (path: string, err: Errno) {
 		rel = "."
 	}
 
-	rel_cstr := strings.clone_to_cstring(rel)
-	defer delete(rel_cstr)
+	rel_cstr := strings.clone_to_cstring(rel, context.temp_allocator)
 
 	path_ptr := _unix_realpath(rel_cstr, nil)
 	if path_ptr == nil {
@@ -712,8 +744,7 @@ absolute_path_from_relative :: proc(rel: string) -> (path: string, err: Errno) {
 }
 
 access :: proc(path: string, mask: int) -> (bool, Errno) {
-	cstr := strings.clone_to_cstring(path)
-	defer delete(cstr)
+	cstr := strings.clone_to_cstring(path, context.temp_allocator)
 	result := _unix_access(cstr, mask)
 	if result < 0 {
 		return false, _get_errno(result)
@@ -727,6 +758,8 @@ heap_alloc :: proc(size: int) -> rawptr {
 }
 
 heap_resize :: proc(ptr: rawptr, new_size: int) -> rawptr {
+	// NOTE: _unix_realloc doesn't guarantee new memory will be zeroed on
+	// POSIX platforms. Ensure your caller takes this into account.
 	return _unix_realloc(ptr, c.size_t(new_size))
 }
 
@@ -735,8 +768,7 @@ heap_free :: proc(ptr: rawptr) {
 }
 
 getenv :: proc(name: string) -> (string, bool) {
-	path_str := strings.clone_to_cstring(name)
-	defer delete(path_str)
+	path_str := strings.clone_to_cstring(name, context.temp_allocator)
 	cstr := _unix_getenv(path_str)
 	if cstr == nil {
 		return "", false
@@ -774,6 +806,7 @@ set_current_directory :: proc(path: string) -> (err: Errno) {
 }
 
 exit :: proc "contextless" (code: int) -> ! {
+	runtime._cleanup_runtime_contextless()
 	_unix_exit(c.int(code))
 }
 
@@ -782,15 +815,13 @@ current_thread_id :: proc "contextless" () -> int {
 }
 
 dlopen :: proc(filename: string, flags: int) -> rawptr {
-	cstr := strings.clone_to_cstring(filename)
-	defer delete(cstr)
+	cstr := strings.clone_to_cstring(filename, context.temp_allocator)
 	handle := _unix_dlopen(cstr, c.int(flags))
 	return handle
 }
 dlsym :: proc(handle: rawptr, symbol: string) -> rawptr {
 	assert(handle != nil)
-	cstr := strings.clone_to_cstring(symbol)
-	defer delete(cstr)
+	cstr := strings.clone_to_cstring(symbol, context.temp_allocator)
 	proc_handle := _unix_dlsym(handle, cstr)
 	return proc_handle
 }

core/os/os_openbsd.odin

@@ -0,0 +1,707 @@
+package os
+
+foreign import libc "system:c"
+
+import "core:strings"
+import "core:c"
+import "core:runtime"
+
+Handle    :: distinct i32
+Pid       :: distinct i32
+File_Time :: distinct u64
+Errno     :: distinct i32
+
+INVALID_HANDLE :: ~Handle(0)
+
+ERROR_NONE:	Errno: 0
+
+EPERM:		Errno: 1
+ENOENT:		Errno: 2
+ESRCH:		Errno: 3
+EINTR:		Errno: 4
+EIO:		Errno: 5
+ENXIO:		Errno: 6
+E2BIG:		Errno: 7
+ENOEXEC:	Errno: 8
+EBADF:		Errno: 9
+ECHILD:		Errno: 10
+EDEADLK:	Errno: 11
+ENOMEM:		Errno: 12
+EACCES:		Errno: 13
+EFAULT:		Errno: 14
+ENOTBLK:	Errno: 15
+EBUSY:		Errno: 16
+EEXIST:		Errno: 17
+EXDEV:		Errno: 18
+ENODEV:		Errno: 19
+ENOTDIR:	Errno: 20
+EISDIR:		Errno: 21
+EINVAL:		Errno: 22
+ENFILE:		Errno: 23
+EMFILE:		Errno: 24
+ENOTTY:		Errno: 25
+ETXTBSY:	Errno: 26
+EFBIG:		Errno: 27
+ENOSPC:		Errno: 28
+ESPIPE:		Errno: 29
+EROFS:		Errno: 30
+EMLINK:		Errno: 31
+EPIPE:		Errno: 32
+EDOM:		Errno: 33
+ERANGE:		Errno: 34
+EAGAIN:		Errno: 35
+EWOULDBLOCK:	Errno: EAGAIN
+EINPROGRESS:	Errno: 36
+EALREADY:	Errno: 37
+ENOTSOCK:	Errno: 38
+EDESTADDRREQ:	Errno: 39
+EMSGSIZE:	Errno: 40
+EPROTOTYPE:	Errno: 41
+ENOPROTOOPT:	Errno: 42
+EPROTONOSUPPORT: Errno: 43
+ESOCKTNOSUPPORT: Errno: 44
+EOPNOTSUPP:	Errno: 45
+EPFNOSUPPORT:	Errno: 46
+EAFNOSUPPORT:	Errno: 47
+EADDRINUSE:	Errno: 48
+EADDRNOTAVAIL:	Errno: 49
+ENETDOWN:	Errno: 50
+ENETUNREACH:	Errno: 51
+ENETRESET:	Errno: 52
+ECONNABORTED:	Errno: 53
+ECONNRESET:	Errno: 54
+ENOBUFS:	Errno: 55
+EISCONN:	Errno: 56
+ENOTCONN:	Errno: 57
+ESHUTDOWN:	Errno: 58
+ETOOMANYREFS:	Errno: 59
+ETIMEDOUT:	Errno: 60
+ECONNREFUSED:	Errno: 61
+ELOOP:		Errno: 62
+ENAMETOOLONG:	Errno: 63
+EHOSTDOWN:	Errno: 64
+EHOSTUNREACH:	Errno: 65
+ENOTEMPTY:	Errno: 66
+EPROCLIM:	Errno: 67
+EUSERS:		Errno: 68
+EDQUOT:		Errno: 69
+ESTALE:		Errno: 70
+EREMOTE:	Errno: 71
+EBADRPC:	Errno: 72
+ERPCMISMATCH:	Errno: 73
+EPROGUNAVAIL:	Errno: 74
+EPROGMISMATCH:	Errno: 75
+EPROCUNAVAIL:	Errno: 76
+ENOLCK:		Errno: 77
+ENOSYS:		Errno: 78
+EFTYPE:		Errno: 79
+EAUTH:		Errno: 80
+ENEEDAUTH:	Errno: 81
+EIPSEC:		Errno: 82
+ENOATTR:	Errno: 83
+EILSEQ:		Errno: 84
+ENOMEDIUM:	Errno: 85
+EMEDIUMTYPE:	Errno: 86
+EOVERFLOW:	Errno: 87
+ECANCELED:	Errno: 88
+EIDRM:		Errno: 89
+ENOMSG:		Errno: 90
+ENOTSUP:	Errno: 91
+EBADMSG:	Errno: 92
+ENOTRECOVERABLE: Errno: 93
+EOWNERDEAD:	Errno: 94
+EPROTO:		Errno: 95
+
+O_RDONLY   :: 0x00000
+O_WRONLY   :: 0x00001
+O_RDWR     :: 0x00002
+O_NONBLOCK :: 0x00004
+O_APPEND   :: 0x00008
+O_ASYNC    :: 0x00040
+O_SYNC     :: 0x00080
+O_CREATE   :: 0x00200
+O_TRUNC    :: 0x00400
+O_EXCL     :: 0x00800
+O_NOCTTY   :: 0x08000
+O_CLOEXEC  :: 0x10000
+
+SEEK_SET :: 0
+SEEK_CUR :: 1
+SEEK_END :: 2
+
+RTLD_LAZY     :: 0x001
+RTLD_NOW      :: 0x002
+RTLD_LOCAL    :: 0x000
+RTLD_GLOBAL   :: 0x100
+RTLD_TRACE    :: 0x200
+RTLD_NODELETE :: 0x400
+
+MAX_PATH :: 1024
+
+// "Argv" arguments converted to Odin strings
+args := _alloc_command_line_arguments()
+
+pid_t     :: i32
+time_t    :: i64
+mode_t    :: u32
+dev_t     :: i32
+ino_t     :: u64
+nlink_t   :: u32
+uid_t     :: u32
+gid_t     :: u32
+off_t     :: i64
+blkcnt_t  :: u64
+blksize_t :: i32
+
+Unix_File_Time :: struct {
+	seconds:     time_t,
+	nanoseconds: c.long,
+}
+
+OS_Stat :: struct {
+	mode: mode_t,			// inode protection mode
+	device_id: dev_t,		// inode's device
+	serial: ino_t,			// inode's number
+	nlink: nlink_t,			// number of hard links
+	uid: uid_t,			// user ID of the file's owner
+	gid: gid_t,			// group ID of the file's group
+	rdev: dev_t,			// device type
+
+	last_access: Unix_File_Time,	// time of last access
+	modified: Unix_File_Time,	// time of last data modification
+	status_change: Unix_File_Time,	// time of last file status change
+
+	size: off_t,			// file size, in bytes
+	blocks: blkcnt_t,		// blocks allocated for file
+	block_size:	blksize_t,	// optimal blocksize for I/O
+
+	flags:		u32,		// user defined flags for file
+	gen:		u32,		// file generation number
+	birthtime:	Unix_File_Time,	// time of file creation
+}
+
+MAXNAMLEN :: 255
+
+// NOTE(laleksic, 2021-01-21): Comment and rename these to match OS_Stat above
+Dirent :: struct {
+	ino:      ino_t,	// file number of entry
+	off:      off_t,	// offset after this entry
+	reclen:   u16,		// length of this record
+	type:     u8,		// file type
+	namlen:   u8,		// length of string in name
+	_padding: [4]u8,
+	name:     [MAXNAMLEN + 1]byte, // name
+}
+
+Dir :: distinct rawptr // DIR*
+
+// File type
+S_IFMT   :: 0o170000 // Type of file mask
+S_IFIFO  :: 0o010000 // Named pipe (fifo)
+S_IFCHR  :: 0o020000 // Character special
+S_IFDIR  :: 0o040000 // Directory
+S_IFBLK  :: 0o060000 // Block special
+S_IFREG  :: 0o100000 // Regular
+S_IFLNK  :: 0o120000 // Symbolic link
+S_IFSOCK :: 0o140000 // Socket
+S_ISVTX  :: 0o001000 // Save swapped text even after use
+
+// File mode
+	// Read, write, execute/search by owner
+S_IRWXU :: 0o0700 // RWX mask for owner
+S_IRUSR :: 0o0400 // R for owner
+S_IWUSR :: 0o0200 // W for owner
+S_IXUSR :: 0o0100 // X for owner
+
+	// Read, write, execute/search by group
+S_IRWXG :: 0o0070 // RWX mask for group
+S_IRGRP :: 0o0040 // R for group
+S_IWGRP :: 0o0020 // W for group
+S_IXGRP :: 0o0010 // X for group
+
+	// Read, write, execute/search by others
+S_IRWXO :: 0o0007 // RWX mask for other
+S_IROTH :: 0o0004 // R for other
+S_IWOTH :: 0o0002 // W for other
+S_IXOTH :: 0o0001 // X for other
+
+S_ISUID :: 0o4000 // Set user id on execution
+S_ISGID :: 0o2000 // Set group id on execution
+S_ISTXT :: 0o1000 // Sticky bit
+
+S_ISLNK  :: #force_inline proc(m: u32) -> bool { return (m & S_IFMT) == S_IFLNK  }
+S_ISREG  :: #force_inline proc(m: u32) -> bool { return (m & S_IFMT) == S_IFREG  }
+S_ISDIR  :: #force_inline proc(m: u32) -> bool { return (m & S_IFMT) == S_IFDIR  }
+S_ISCHR  :: #force_inline proc(m: u32) -> bool { return (m & S_IFMT) == S_IFCHR  }
+S_ISBLK  :: #force_inline proc(m: u32) -> bool { return (m & S_IFMT) == S_IFBLK  }
+S_ISFIFO :: #force_inline proc(m: u32) -> bool { return (m & S_IFMT) == S_IFIFO  }
+S_ISSOCK :: #force_inline proc(m: u32) -> bool { return (m & S_IFMT) == S_IFSOCK }
+
+F_OK :: 0x00 // Test for file existance
+X_OK :: 0x01 // Test for execute permission
+W_OK :: 0x02 // Test for write permission
+R_OK :: 0x04 // Test for read permission
+
+AT_FDCWD            :: -100
+AT_EACCESS          :: 0x01
+AT_SYMLINK_NOFOLLOW :: 0x02
+AT_SYMLINK_FOLLOW   :: 0x04
+AT_REMOVEDIR        :: 0x08
+
+@(default_calling_convention="c")
+foreign libc {
+	@(link_name="__errno")	__errno		:: proc() -> ^int ---
+
+	@(link_name="fork")	_unix_fork	:: proc() -> pid_t ---
+	@(link_name="getthrid")	_unix_getthrid	:: proc() -> int ---
+
+	@(link_name="open")	_unix_open	:: proc(path: cstring, flags: c.int, mode: c.int) -> Handle ---
+	@(link_name="close")	_unix_close	:: proc(fd: Handle) -> c.int ---
+	@(link_name="read")	_unix_read	:: proc(fd: Handle, buf: rawptr, size: c.size_t) -> c.ssize_t ---
+	@(link_name="write")	_unix_write	:: proc(fd: Handle, buf: rawptr, size: c.size_t) -> c.ssize_t ---
+	@(link_name="lseek")	_unix_seek	:: proc(fd: Handle, offset: off_t, whence: c.int) -> off_t ---
+	@(link_name="stat")	_unix_stat	:: proc(path: cstring, sb: ^OS_Stat) -> c.int ---
+	@(link_name="fstat")	_unix_fstat	:: proc(fd: Handle, sb: ^OS_Stat) -> c.int ---
+	@(link_name="lstat")	_unix_lstat	:: proc(path: cstring, sb: ^OS_Stat) -> c.int ---
+	@(link_name="readlink")	_unix_readlink	:: proc(path: cstring, buf: ^byte, bufsiz: c.size_t) -> c.ssize_t ---
+	@(link_name="access")	_unix_access	:: proc(path: cstring, mask: c.int) -> c.int ---
+	@(link_name="getcwd")	_unix_getcwd	:: proc(buf: cstring, len: c.size_t) -> cstring ---
+	@(link_name="chdir")	_unix_chdir	:: proc(path: cstring) -> c.int ---
+	@(link_name="rename")	_unix_rename	:: proc(old, new: cstring) -> c.int ---
+	@(link_name="unlink")	_unix_unlink	:: proc(path: cstring) -> c.int ---
+	@(link_name="rmdir")	_unix_rmdir	:: proc(path: cstring) -> c.int ---
+	@(link_name="mkdir")	_unix_mkdir	:: proc(path: cstring, mode: mode_t) -> c.int ---
+
+	@(link_name="getpagesize") _unix_getpagesize :: proc() -> c.int ---
+	@(link_name="fdopendir") _unix_fdopendir :: proc(fd: Handle) -> Dir ---
+	@(link_name="closedir")	_unix_closedir	:: proc(dirp: Dir) -> c.int ---
+	@(link_name="rewinddir") _unix_rewinddir :: proc(dirp: Dir) ---
+	@(link_name="readdir_r") _unix_readdir_r :: proc(dirp: Dir, entry: ^Dirent, result: ^^Dirent) -> c.int ---
+
+	@(link_name="malloc")	_unix_malloc	:: proc(size: c.size_t) -> rawptr ---
+	@(link_name="calloc")	_unix_calloc	:: proc(num, size: c.size_t) -> rawptr ---
+	@(link_name="free")	_unix_free	:: proc(ptr: rawptr) ---
+	@(link_name="realloc")	_unix_realloc	:: proc(ptr: rawptr, size: c.size_t) -> rawptr ---
+
+	@(link_name="getenv")	_unix_getenv	:: proc(cstring) -> cstring ---
+	@(link_name="realpath")	_unix_realpath	:: proc(path: cstring, resolved_path: rawptr) -> rawptr ---
+
+	@(link_name="exit")	_unix_exit	:: proc(status: c.int) -> ! ---
+
+	@(link_name="dlopen")	_unix_dlopen	:: proc(filename: cstring, flags: c.int) -> rawptr ---
+	@(link_name="dlsym")	_unix_dlsym	:: proc(handle: rawptr, symbol: cstring) -> rawptr ---
+	@(link_name="dlclose")	_unix_dlclose	:: proc(handle: rawptr) -> c.int ---
+	@(link_name="dlerror")	_unix_dlerror	:: proc() -> cstring ---
+}
+
+is_path_separator :: proc(r: rune) -> bool {
+	return r == '/'
+}
+
+get_last_error :: proc() -> int {
+	return __errno()^
+}
+
+fork :: proc() -> (Pid, Errno) {
+	pid := _unix_fork()
+	if pid == -1 {
+		return Pid(-1), Errno(get_last_error())
+	}
+	return Pid(pid), ERROR_NONE
+}
+
+open :: proc(path: string, flags: int = O_RDONLY, mode: int = 0) -> (Handle, Errno) {
+	cstr := strings.clone_to_cstring(path, context.temp_allocator)
+	handle := _unix_open(cstr, c.int(flags), c.int(mode))
+	if handle == -1 {
+		return INVALID_HANDLE, Errno(get_last_error())
+	}
+	return handle, ERROR_NONE
+}
+
+close :: proc(fd: Handle) -> Errno {
+	result := _unix_close(fd)
+	if result == -1 {
+		return Errno(get_last_error())
+	}
+	return ERROR_NONE
+}
+
+read :: proc(fd: Handle, data: []byte) -> (int, Errno) {
+	bytes_read := _unix_read(fd, &data[0], c.size_t(len(data)))
+	if bytes_read == -1 {
+		return -1, Errno(get_last_error())
+	}
+	return int(bytes_read), ERROR_NONE
+}
+
+write :: proc(fd: Handle, data: []byte) -> (int, Errno) {
+	if len(data) == 0 {
+		return 0, ERROR_NONE
+	}
+	bytes_written := _unix_write(fd, &data[0], c.size_t(len(data)))
+	if bytes_written == -1 {
+		return -1, Errno(get_last_error())
+	}
+	return int(bytes_written), ERROR_NONE
+}
+
+seek :: proc(fd: Handle, offset: i64, whence: int) -> (i64, Errno) {
+	res := _unix_seek(fd, offset, c.int(whence))
+	if res == -1 {
+		return -1, Errno(get_last_error())
+	}
+	return res, ERROR_NONE
+}
+
+file_size :: proc(fd: Handle) -> (i64, Errno) {
+	s, err := _fstat(fd)
+	if err != ERROR_NONE {
+		return -1, err
+	}
+	return s.size, ERROR_NONE
+}
+
+rename :: proc(old_path, new_path: string) -> Errno {
+	old_path_cstr := strings.clone_to_cstring(old_path, context.temp_allocator)
+	new_path_cstr := strings.clone_to_cstring(new_path, context.temp_allocator)
+	res := _unix_rename(old_path_cstr, new_path_cstr)
+	if res == -1 {
+		return Errno(get_last_error())
+	}
+	return ERROR_NONE
+}
+
+remove :: proc(path: string) -> Errno {
+	path_cstr := strings.clone_to_cstring(path, context.temp_allocator)
+	res := _unix_unlink(path_cstr)
+	if res == -1 {
+		return Errno(get_last_error())
+	}
+	return ERROR_NONE
+}
+
+make_directory :: proc(path: string, mode: mode_t = 0o775) -> Errno {
+	path_cstr := strings.clone_to_cstring(path, context.temp_allocator)
+	res := _unix_mkdir(path_cstr, mode)
+	if res == -1 {
+		return Errno(get_last_error())
+	}
+	return ERROR_NONE
+}
+
+remove_directory :: proc(path: string) -> Errno {
+	path_cstr := strings.clone_to_cstring(path, context.temp_allocator)
+	res := _unix_rmdir(path_cstr)
+	if res == -1 {
+		return Errno(get_last_error())
+	}
+	return ERROR_NONE
+}
+
+is_file_handle :: proc(fd: Handle) -> bool {
+	s, err := _fstat(fd)
+	if err != ERROR_NONE {
+		return false
+	}
+	return S_ISREG(s.mode)
+}
+
+is_file_path :: proc(path: string, follow_links: bool = true) -> bool {
+	s: OS_Stat
+	err: Errno
+	if follow_links {
+		s, err = _stat(path)
+	} else {
+		s, err = _lstat(path)
+	}
+	if err != ERROR_NONE {
+		return false
+	}
+	return S_ISREG(s.mode)
+}
+
+is_dir_handle :: proc(fd: Handle) -> bool {
+	s, err := _fstat(fd)
+	if err != ERROR_NONE {
+		return false
+	}
+	return S_ISDIR(s.mode)
+}
+
+is_dir_path :: proc(path: string, follow_links: bool = true) -> bool {
+	s: OS_Stat
+	err: Errno
+	if follow_links {
+		s, err = _stat(path)
+	} else {
+		s, err = _lstat(path)
+	}
+	if err != ERROR_NONE {
+		return false
+	}
+	return S_ISDIR(s.mode)
+}
+
+is_file :: proc {is_file_path, is_file_handle}
+is_dir :: proc {is_dir_path, is_dir_handle}
+
+// NOTE(bill): Uses startup to initialize it
+
+stdin:  Handle = 0
+stdout: Handle = 1
+stderr: Handle = 2
+
+/* TODO(zangent): Implement these!                                                                                
+last_write_time :: proc(fd: Handle) -> File_Time {}                                                               
+last_write_time_by_name :: proc(name: string) -> File_Time {}                                                     
+*/
+last_write_time :: proc(fd: Handle) -> (File_Time, Errno) {
+	s, err := _fstat(fd)
+	if err != ERROR_NONE {
+		return 0, err
+	}
+	modified := s.modified.seconds * 1_000_000_000 + s.modified.nanoseconds
+	return File_Time(modified), ERROR_NONE
+}
+
+last_write_time_by_name :: proc(name: string) -> (File_Time, Errno) {
+	s, err := _stat(name)
+	if err != ERROR_NONE {
+		return 0, err
+	}
+	modified := s.modified.seconds * 1_000_000_000 + s.modified.nanoseconds
+	return File_Time(modified), ERROR_NONE
+}
+
+@private
+_stat :: proc(path: string) -> (OS_Stat, Errno) {
+	cstr := strings.clone_to_cstring(path, context.temp_allocator)
+
+	// deliberately uninitialized
+	s: OS_Stat = ---
+	res := _unix_stat(cstr, &s)
+	if res == -1 {
+		return s, Errno(get_last_error())
+	}
+	return s, ERROR_NONE
+}
+
+@private
+_lstat :: proc(path: string) -> (OS_Stat, Errno) {
+	cstr := strings.clone_to_cstring(path, context.temp_allocator)
+
+	// deliberately uninitialized
+	s: OS_Stat = ---
+	res := _unix_lstat(cstr, &s)
+	if res == -1 {
+		return s, Errno(get_last_error())
+	}
+	return s, ERROR_NONE
+}
+
+@private
+_fstat :: proc(fd: Handle) -> (OS_Stat, Errno) {
+	// deliberately uninitialized
+	s: OS_Stat = ---
+	res := _unix_fstat(fd, &s)
+	if res == -1 {
+		return s, Errno(get_last_error())
+	}
+	return s, ERROR_NONE
+}
+
+@private
+_fdopendir :: proc(fd: Handle) -> (Dir, Errno) {
+	dirp := _unix_fdopendir(fd)
+	if dirp == cast(Dir)nil {
+		return nil, Errno(get_last_error())
+	}
+	return dirp, ERROR_NONE
+}
+
+@private
+_closedir :: proc(dirp: Dir) -> Errno {
+	rc := _unix_closedir(dirp)
+	if rc != 0 {
+		return Errno(get_last_error())
+	}
+	return ERROR_NONE
+}
+
+@private
+_rewinddir :: proc(dirp: Dir) {
+	_unix_rewinddir(dirp)
+}
+
+@private
+_readdir :: proc(dirp: Dir) -> (entry: Dirent, err: Errno, end_of_stream: bool) {
+	result: ^Dirent
+	rc := _unix_readdir_r(dirp, &entry, &result)
+
+	if rc != 0 {
+		err = Errno(get_last_error())
+		return
+	}
+	err = ERROR_NONE
+
+	if result == nil {
+		end_of_stream = true
+		return
+	}
+
+	return
+}
+
+@private
+_readlink :: proc(path: string) -> (string, Errno) {
+	path_cstr := strings.clone_to_cstring(path, context.temp_allocator)
+
+	bufsz : uint = MAX_PATH
+	buf := make([]byte, MAX_PATH)
+	for {
+		rc := _unix_readlink(path_cstr, &(buf[0]), bufsz)
+		if rc == -1 {
+			delete(buf)
+			return "", Errno(get_last_error())
+		} else if rc == int(bufsz) {
+			bufsz += MAX_PATH
+			delete(buf)
+			buf = make([]byte, bufsz)
+		} else {
+			return strings.string_from_ptr(&buf[0], rc), ERROR_NONE
+		}	
+	}
+	unreachable()
+}
+
+// XXX OpenBSD
+absolute_path_from_handle :: proc(fd: Handle) -> (string, Errno) {
+	return "", Errno(ENOSYS)
+}
+
+absolute_path_from_relative :: proc(rel: string) -> (path: string, err: Errno) {
+	rel := rel
+	if rel == "" {
+		rel = "."
+	}
+
+	rel_cstr := strings.clone_to_cstring(rel, context.temp_allocator)
+
+	path_ptr := _unix_realpath(rel_cstr, nil)
+	if path_ptr == nil {
+		return "", Errno(get_last_error())
+	}
+	defer _unix_free(path_ptr)
+
+	path_cstr := transmute(cstring)path_ptr
+	path = strings.clone( string(path_cstr) )
+
+	return path, ERROR_NONE
+}
+
+access :: proc(path: string, mask: int) -> (bool, Errno) {
+	cstr := strings.clone_to_cstring(path, context.temp_allocator)
+	res := _unix_access(cstr, c.int(mask))
+	if res == -1 {
+		return false, Errno(get_last_error())
+	}
+	return true, ERROR_NONE
+}
+
+heap_alloc :: proc(size: int) -> rawptr {
+	assert(size >= 0)
+	return _unix_calloc(1, c.size_t(size))
+}
+
+heap_resize :: proc(ptr: rawptr, new_size: int) -> rawptr {
+	// NOTE: _unix_realloc doesn't guarantee new memory will be zeroed on
+	// POSIX platforms. Ensure your caller takes this into account.
+	return _unix_realloc(ptr, c.size_t(new_size))
+}
+
+heap_free :: proc(ptr: rawptr) {
+	_unix_free(ptr)
+}
+
+getenv :: proc(name: string) -> (string, bool) {
+	path_str := strings.clone_to_cstring(name, context.temp_allocator)
+	cstr := _unix_getenv(path_str)
+	if cstr == nil {
+		return "", false
+	}
+	return string(cstr), true
+}
+
+get_current_directory :: proc() -> string {
+	buf := make([dynamic]u8, MAX_PATH)
+	for {
+		cwd := _unix_getcwd(cstring(raw_data(buf)), c.size_t(len(buf)))
+		if cwd != nil {
+			return string(cwd)
+		}
+		if Errno(get_last_error()) != ERANGE {
+			return ""
+		}
+		resize(&buf, len(buf) + MAX_PATH)
+	}
+	unreachable()
+}
+
+set_current_directory :: proc(path: string) -> (err: Errno) {
+	cstr := strings.clone_to_cstring(path, context.temp_allocator)
+	res := _unix_chdir(cstr)
+	if res == -1 {
+		return Errno(get_last_error())
+	}
+	return ERROR_NONE
+}
+
+exit :: proc "contextless" (code: int) -> ! {
+	runtime._cleanup_runtime_contextless()
+	_unix_exit(c.int(code))
+}
+
+current_thread_id :: proc "contextless" () -> int {
+	return _unix_getthrid()
+}
+
+dlopen :: proc(filename: string, flags: int) -> rawptr {
+	cstr := strings.clone_to_cstring(filename, context.temp_allocator)
+	handle := _unix_dlopen(cstr, c.int(flags))
+	return handle
+}
+dlsym :: proc(handle: rawptr, symbol: string) -> rawptr {
+	assert(handle != nil)
+	cstr := strings.clone_to_cstring(symbol, context.temp_allocator)
+	proc_handle := _unix_dlsym(handle, cstr)
+	return proc_handle
+}
+dlclose :: proc(handle: rawptr) -> bool {
+	assert(handle != nil)
+	return _unix_dlclose(handle) == 0
+}
+dlerror :: proc() -> string {
+	return string(_unix_dlerror())
+}
+
+get_page_size :: proc() -> int {
+	// NOTE(tetra): The page size never changes, so why do anything complicated
+	// if we don't have to.
+	@static page_size := -1
+	if page_size != -1 {
+		return page_size
+	}
+
+	page_size = int(_unix_getpagesize())
+	return page_size
+}
+
+
+_alloc_command_line_arguments :: proc() -> []string {
+	res := make([]string, len(runtime.args__))
+	for arg, i in runtime.args__ {
+		res[i] = string(arg)
+	}
+	return res
+}

core/os/os_wasi.odin

@@ -1,6 +1,7 @@
 package os
 
 import "core:sys/wasm/wasi"
+import "core:runtime"
 
 Handle :: distinct i32
 Errno :: distinct i32
@@ -93,5 +94,6 @@ heap_free :: proc(ptr: rawptr) {
 
 
 exit :: proc "contextless" (code: int) -> ! {
+	runtime._cleanup_runtime_contextless()
 	wasi.proc_exit(wasi.exitcode_t(code))
 }

core/os/os_windows.odin

@@ -2,6 +2,7 @@
 package os
 
 import win32 "core:sys/windows"
+import "core:runtime"
 
 Handle    :: distinct uintptr
 File_Time :: distinct u64
@@ -128,6 +129,7 @@ get_page_size :: proc() -> int {
 
 
 exit :: proc "contextless" (code: int) -> ! {
+	runtime._cleanup_runtime_contextless()
 	win32.ExitProcess(win32.DWORD(code))
 }
 

core/os/stat.odin

@@ -2,7 +2,6 @@ package os
 
 import "core:time"
 
-
 File_Info :: struct {
 	fullpath: string,
 	name:     string,

core/os/stat_unix.odin

@@ -1,4 +1,4 @@
-//+build linux, darwin, freebsd
+//+build linux, darwin, freebsd, openbsd
 package os
 
 import "core:time"
@@ -61,7 +61,7 @@ _make_time_from_unix_file_time :: proc(uft: Unix_File_Time) -> time.Time {
 _fill_file_info_from_stat :: proc(fi: ^File_Info, s: OS_Stat) {
 	fi.size = s.size
 	fi.mode = cast(File_Mode)s.mode
-	fi.is_dir = S_ISDIR(u32(s.mode))
+	fi.is_dir = S_ISDIR(s.mode)
 
 	// NOTE(laleksic, 2021-01-21): Not really creation time, but closest we can get (maybe better to leave it 0?)
 	fi.creation_time = _make_time_from_unix_file_time(s.status_change)

core/os/stat_windows.odin

@@ -80,7 +80,7 @@ stat :: proc(name: string, allocator := context.allocator) -> (File_Info, Errno)
 	return _stat(name, attrs, allocator)
 }
 
-fstat :: proc(fd: Handle, allocator := context.allocator) -> (File_Info, Errno) {
+fstat :: proc(fd: Handle, allocator := context.allocator) -> (fi: File_Info, errno: Errno) {
 	if fd == 0 {
 		return {}, ERROR_INVALID_HANDLE
 	}
@@ -94,14 +94,14 @@ fstat :: proc(fd: Handle, allocator := context.allocator) -> (File_Info, Errno)
 	h := win32.HANDLE(fd)
 	switch win32.GetFileType(h) {
 	case win32.FILE_TYPE_PIPE, win32.FILE_TYPE_CHAR:
-		fi: File_Info
-		fi.fullpath = path
 		fi.name = basename(path)
 		fi.mode |= file_type_mode(h)
-		return fi, ERROR_NONE
+		errno = ERROR_NONE
+	case:
+		fi, errno = file_info_from_get_file_information_by_handle(path, h)
 	}
-
-	return file_info_from_get_file_information_by_handle(path, h)
+	fi.fullpath = path
+	return
 }
 
 
@@ -132,26 +132,11 @@ cleanpath_strip_prefix :: proc(buf: []u16) -> []u16 {
 
 @(private)
 cleanpath_from_handle :: proc(fd: Handle) -> (string, Errno) {
-	if fd == 0 {
-		return "", ERROR_INVALID_HANDLE
+	buf, err := cleanpath_from_handle_u16(fd)
+	if err != 0 {
+		return "", err
 	}
-	h := win32.HANDLE(fd)
-
-	MAX_PATH := win32.DWORD(260) + 1
-	buf: []u16
-	for {
-		buf = make([]u16, MAX_PATH, context.temp_allocator)
-		err := win32.GetFinalPathNameByHandleW(h, raw_data(buf), MAX_PATH, 0)
-		switch Errno(err) {
-		case ERROR_PATH_NOT_FOUND, ERROR_INVALID_PARAMETER:
-			return "", Errno(err)
-		case ERROR_NOT_ENOUGH_MEMORY:
-			MAX_PATH = MAX_PATH*2 + 1
-			continue
-		}
-		break
-	}
-	return cleanpath_from_buf(buf), ERROR_NONE
+	return win32.utf16_to_utf8(buf, context.allocator), err
 }
 @(private)
 cleanpath_from_handle_u16 :: proc(fd: Handle) -> ([]u16, Errno) {
@@ -160,21 +145,13 @@ cleanpath_from_handle_u16 :: proc(fd: Handle) -> ([]u16, Errno) {
 	}
 	h := win32.HANDLE(fd)
 
-	MAX_PATH := win32.DWORD(260) + 1
-	buf: []u16
-	for {
-		buf = make([]u16, MAX_PATH, context.temp_allocator)
-		err := win32.GetFinalPathNameByHandleW(h, raw_data(buf), MAX_PATH, 0)
-		switch Errno(err) {
-		case ERROR_PATH_NOT_FOUND, ERROR_INVALID_PARAMETER:
-			return nil, Errno(err)
-		case ERROR_NOT_ENOUGH_MEMORY:
-			MAX_PATH = MAX_PATH*2 + 1
-			continue
-		}
-		break
+	n := win32.GetFinalPathNameByHandleW(h, nil, 0, 0)
+	if n == 0 {
+		return nil, Errno(win32.GetLastError())
 	}
-	return cleanpath_strip_prefix(buf), ERROR_NONE
+	buf := make([]u16, max(n, win32.DWORD(260))+1, context.temp_allocator)
+	buf_len := win32.GetFinalPathNameByHandleW(h, raw_data(buf), n, 0)
+	return buf[:buf_len], ERROR_NONE
 }
 @(private)
 cleanpath_from_buf :: proc(buf: []u16) -> string {

core/os/stream.odin

@@ -19,7 +19,7 @@ _file_stream_vtable := &io.Stream_VTable{
 		return
 	},
 	impl_read_at = proc(s: io.Stream, p: []byte, offset: i64) -> (n: int, err: io.Error) {
-		when ODIN_OS == "windows" || ODIN_OS == "wasi" {
+		when ODIN_OS == .Windows || ODIN_OS == .WASI {
 			fd := Handle(uintptr(s.stream_data))
 			os_err: Errno
 			n, os_err = read_at(fd, p, offset)
@@ -33,7 +33,7 @@ _file_stream_vtable := &io.Stream_VTable{
 		return
 	},
 	impl_write_at = proc(s: io.Stream, p: []byte, offset: i64) -> (n: int, err: io.Error) {
-		when ODIN_OS == "windows" || ODIN_OS == "wasi" {
+		when ODIN_OS == .Windows || ODIN_OS == .WASI {
 			fd := Handle(uintptr(s.stream_data))
 			os_err: Errno
 			n, os_err = write_at(fd, p, offset)
@@ -53,7 +53,7 @@ _file_stream_vtable := &io.Stream_VTable{
 		return sz
 	},
 	impl_flush = proc(s: io.Stream) -> io.Error {
-		when ODIN_OS == "windows" {
+		when ODIN_OS == .Windows {
 			fd := Handle(uintptr(s.stream_data))
 			flush(fd)
 		} else {

core/path/filepath/match.odin

@@ -89,7 +89,7 @@ scan_chunk :: proc(pattern: string) -> (star: bool, chunk, rest: string) {
 	scan_loop: for i = 0; i < len(pattern); i += 1 {
 		switch pattern[i] {
 		case '\\':
-			when ODIN_OS != "windows" {
+			when ODIN_OS != .Windows {
 				if i+1 < len(pattern) {
 					i += 1
 				}
@@ -161,7 +161,7 @@ match_chunk :: proc(chunk, s: string) -> (rest: string, ok: bool, err: Match_Err
 			chunk = chunk[1:]
 
 		case '\\':
-			when ODIN_OS != "windows" {
+			when ODIN_OS != .Windows {
 				chunk = chunk[1:]
 				if len(chunk) == 0 {
 					err = .Syntax_Error
@@ -188,7 +188,7 @@ get_escape :: proc(chunk: string) -> (r: rune, next_chunk: string, err: Match_Er
 		return
 	}
 	chunk := chunk
-	if chunk[0] == '\\' && ODIN_OS != "windows" {
+	if chunk[0] == '\\' && ODIN_OS != .Windows {
 		chunk = chunk[1:]
 		if len(chunk) == 0 {
 			err = .Syntax_Error
@@ -220,19 +220,21 @@ get_escape :: proc(chunk: string) -> (r: rune, next_chunk: string, err: Match_Er
 //
 
 glob :: proc(pattern: string, allocator := context.allocator) -> (matches: []string, err: Match_Error) {
+	context.allocator = allocator
+
 	if !has_meta(pattern) {
 		// TODO(bill): os.lstat on here to check for error
-		m := make([]string, 1, allocator)
+		m := make([]string, 1)
 		m[0] = pattern
 		return m[:], .None
 	}
 
-	temp_buf: [8]byte
-
 	dir, file := split(pattern)
 	volume_len := 0
-	when ODIN_OS == "windows" {
+	when ODIN_OS == .Windows {
+		temp_buf: [8]byte
 		volume_len, dir = clean_glob_path_windows(dir, temp_buf[:])
+
 	} else {
 		dir = clean_glob_path(dir)
 	}
@@ -247,7 +249,7 @@ glob :: proc(pattern: string, allocator := context.allocator) -> (matches: []str
 	if err != .None {
 		return
 	}
-	dmatches := make([dynamic]string, 0, 0, allocator)
+	dmatches := make([dynamic]string, 0, 0)
 	for d in m {
 		dmatches, err = _glob(d, file, &dmatches)
 		if err != .None {
@@ -259,11 +261,13 @@ glob :: proc(pattern: string, allocator := context.allocator) -> (matches: []str
 	}
 	return
 }
-_glob :: proc(dir, pattern: string, matches: ^[dynamic]string) -> (m: [dynamic]string, e: Match_Error) {
+_glob :: proc(dir, pattern: string, matches: ^[dynamic]string, allocator := context.allocator) -> (m: [dynamic]string, e: Match_Error) {
+	context.allocator = allocator
+
 	if matches != nil {
 		m = matches^
 	} else {
-		m = make([dynamic]string, 0, 0, context.allocator)
+		m = make([dynamic]string, 0, 0)
 	}
 
 
@@ -276,6 +280,7 @@ _glob :: proc(dir, pattern: string, matches: ^[dynamic]string) -> (m: [dynamic]s
 	{
 		file_info, ferr := os.fstat(d)
 		defer os.file_info_delete(file_info)
+
 		if ferr != 0 {
 			return
 		}
@@ -308,7 +313,7 @@ _glob :: proc(dir, pattern: string, matches: ^[dynamic]string) -> (m: [dynamic]s
 
 @(private)
 has_meta :: proc(path: string) -> bool {
-	when ODIN_OS == "windows" {
+	when ODIN_OS == .Windows {
 		CHARS :: `*?[`
 	} else {
 		CHARS :: `*?[\`

core/path/filepath/path.odin

@@ -1,5 +1,5 @@
 // The path/filepath package uses either forward slashes or backslashes depending on the operating system
-// To process paths usch as URLs that depend on forward slashes regardless of the OS, use the path package
+// To process paths such as URLs that depend on forward slashes regardless of the OS, use the path package
 package filepath
 
 import "core:strings"
@@ -8,7 +8,7 @@ import "core:strings"
 is_separator :: proc(c: byte) -> bool {
 	switch c {
 	case '/':  return true
-	case '\\': return ODIN_OS == "windows"
+	case '\\': return ODIN_OS == .Windows
 	}
 	return false
 }
@@ -32,7 +32,7 @@ volume_name :: proc(path: string) -> string {
 }
 
 volume_name_len :: proc(path: string) -> int {
-	if ODIN_OS == "windows" {
+	if ODIN_OS == .Windows {
 		if len(path) < 2 {
 			return 0
 		}
@@ -122,6 +122,7 @@ clean :: proc(path: string, allocator := context.allocator) -> string {
 		vol_and_path = original_path,
 		vol_len = vol_len,
 	}
+	defer lazy_buffer_destroy(out)
 
 	r, dot_dot := 0, 0
 	if rooted {
@@ -170,7 +171,6 @@ clean :: proc(path: string, allocator := context.allocator) -> string {
 	cleaned, new_allocation := from_slash(s)
 	if new_allocation {
 		delete(s)
-		lazy_buffer_destroy(out)
 	}
 	return cleaned
 }
@@ -284,13 +284,14 @@ rel :: proc(base_path, target_path: string, allocator := context.allocator) -> (
 }
 
 dir :: proc(path: string, allocator := context.allocator) -> string {
+        context.allocator = allocator
 	vol := volume_name(path)
 	i := len(path) - 1
 	for i >= len(vol) && !is_separator(path[i]) {
 		i -= 1
 	}
-	dir := clean(path[len(vol) : i+1], allocator)
-	defer delete(dir, allocator)
+	dir := clean(path[len(vol) : i+1])
+	defer delete(dir)
 	if dir == "." && len(vol) > 2 {
 		return strings.clone(vol)
 	}
@@ -299,6 +300,11 @@ dir :: proc(path: string, allocator := context.allocator) -> string {
 
 
 
+// Splits the PATH-like `path` string, returning an array of its separated components (delete after use).
+// For Windows the separator is `;`, for Unix it's  `:`.
+// An empty string returns nil. A non-empty string with no separators returns a 1-element array.
+// Any empty components will be included, e.g. `a::b` will return a 3-element array, as will `::`.
+// Separators within pairs of double-quotes will be ignored and stripped, e.g. `"a:b"c:d` will return []{`a:bc`, `d`}.
 split_list :: proc(path: string, allocator := context.allocator) -> []string {
 	if path == "" {
 		return nil
@@ -321,7 +327,7 @@ split_list :: proc(path: string, allocator := context.allocator) -> []string {
 	}
 
 	start, quote = 0, false
-	list := make([]string, count, allocator)
+	list := make([]string, count + 1, allocator)
 	index := 0
 	for i := 0; i < len(path); i += 1 {
 		c := path[i]
@@ -335,6 +341,7 @@ split_list :: proc(path: string, allocator := context.allocator) -> []string {
 		}
 	}
 	assert(index == count)
+	list[index] = path[start:]
 
 	for s0, i in list {
 		s, new := strings.replace_all(s0, `"`, ``, allocator)

core/path/filepath/path_unix.odin

@@ -1,7 +1,7 @@
-//+build linux, darwin, freebsd
+//+build linux, darwin, freebsd, openbsd
 package filepath
 
-when ODIN_OS == "darwin" {
+when ODIN_OS == .Darwin {
 	foreign import libc "System.framework"
 } else {
 	foreign import libc "system:c"
@@ -54,11 +54,16 @@ foreign libc {
 	@(link_name="free") _unix_free :: proc(ptr: rawptr) ---
 
 }
-when ODIN_OS == "darwin" {
+when ODIN_OS == .Darwin {
 	@(private)
 	foreign libc {
 		@(link_name="__error")          __error :: proc() -> ^i32 ---
 	}
+} else when ODIN_OS == .OpenBSD {
+	@(private)
+	foreign libc {
+		@(link_name="__errno")		__error :: proc() -> ^i32 ---
+	}
 } else {
 	@(private)
 	foreign libc {

core/path/filepath/walk.odin

@@ -71,7 +71,7 @@ _walk :: proc(info: os.File_Info, walk_proc: Walk_Proc) -> (err: os.Errno, skip_
 
 @(private)
 read_dir :: proc(dir_name: string, allocator := context.temp_allocator) -> ([]os.File_Info, os.Errno) {
-	f, err := os.open(dir_name)
+	f, err := os.open(dir_name, os.O_RDONLY)
 	if err != 0 {
 		return nil, err
 	}

core/reflect/reflect.odin

@@ -234,7 +234,7 @@ is_nil :: proc(v: any) -> bool {
 		return true
 	}
 	data := as_bytes(v)
-	if data != nil {
+	if data == nil {
 		return true
 	}
 	for v in data {
@@ -365,6 +365,19 @@ index :: proc(val: any, i: int, loc := #caller_location) -> any {
 	return nil
 }
 
+deref :: proc(val: any) -> any {
+	if val != nil {
+		ti := type_info_base(type_info_of(val.id))
+		if info, ok := ti.variant.(Type_Info_Pointer); ok {
+			return any{
+				(^rawptr)(val.data)^,
+				info.elem.id,
+			}
+		}
+	}
+	return val
+}
+
 
 
 // Struct_Tag represents the type of the string of a struct field
@@ -680,7 +693,6 @@ union_variant_typeid :: proc(a: any) -> typeid {
 		return nil
 	}
 	panic("expected a union to reflect.union_variant_typeid")
-
 }
 
 get_union_variant_raw_tag :: proc(a: any) -> i64 {
@@ -1042,6 +1054,7 @@ as_u64 :: proc(a: any) -> (value: u64, valid: bool) {
 	case Type_Info_Float:
 		valid = true
 		switch v in a {
+		case f16:   value = u64(v)
 		case f32:   value = u64(v)
 		case f64:   value = u64(v)
 		case f32le: value = u64(v)
@@ -1147,6 +1160,7 @@ as_f64 :: proc(a: any) -> (value: f64, valid: bool) {
 	case Type_Info_Float:
 		valid = true
 		switch v in a {
+		case f16:   value = f64(v)
 		case f32:   value = f64(v)
 		case f64:   value =    (v)
 		case f32le: value = f64(v)

core/reflect/types.odin

@@ -334,11 +334,11 @@ is_relative_slice :: proc(info: ^Type_Info) -> bool {
 
 
 
-write_typeid_builder :: proc(buf: ^strings.Builder, id: typeid) {
-	write_type(buf, type_info_of(id))
+write_typeid_builder :: proc(buf: ^strings.Builder, id: typeid, n_written: ^int = nil) -> (n: int, err: io.Error) {
+	return write_type_writer(strings.to_writer(buf), type_info_of(id))
 }
-write_typeid_writer :: proc(writer: io.Writer, id: typeid) {
-	write_type(writer, type_info_of(id))
+write_typeid_writer :: proc(writer: io.Writer, id: typeid, n_written: ^int = nil) -> (n: int, err: io.Error) {
+	return write_type_writer(writer, type_info_of(id), n_written)
 }
 
 write_typeid :: proc{
@@ -472,6 +472,9 @@ write_type_writer :: proc(w: io.Writer, ti: ^Type_Info, n_written: ^int = nil) -
 		write_type(w, info.elem,             &n) or_return
 
 	case Type_Info_Enumerated_Array:
+		if info.is_sparse {
+			io.write_string(w, "#sparse", &n) or_return
+		}
 		io.write_string(w, "[",   &n) or_return
 		write_type(w, info.index, &n) or_return
 		io.write_string(w, "]",   &n) or_return

core/runtime/core.odin

@@ -33,6 +33,11 @@ Calling_Convention :: enum u8 {
 
 	None        = 6,
 	Naked       = 7,
+
+	_           = 8, // reserved
+
+	Win64       = 9,
+	SysV        = 10,
 }
 
 Type_Info_Enum_Value :: distinct i64
@@ -95,6 +100,7 @@ Type_Info_Enumerated_Array :: struct {
 	count:     int,
 	min_value: Type_Info_Enum_Value,
 	max_value: Type_Info_Enum_Value,
+	is_sparse: bool,
 }
 Type_Info_Dynamic_Array :: struct {elem: ^Type_Info, elem_size: int}
 Type_Info_Slice         :: struct {elem: ^Type_Info, elem_size: int}
@@ -130,6 +136,7 @@ Type_Info_Union :: struct {
 	custom_align: bool,
 	no_nil:       bool,
 	maybe:        bool,
+	shared_nil:   bool,
 }
 Type_Info_Enum :: struct {
 	base:      ^Type_Info,
@@ -345,7 +352,6 @@ Context :: struct {
 	assertion_failure_proc: Assertion_Failure_Proc,
 	logger:                 Logger,
 
-	user_data:  any,
 	user_ptr:   rawptr,
 	user_index: int,
 
@@ -386,6 +392,35 @@ Raw_Cstring :: struct {
 }
 
 
+/*
+	// Defined internally by the compiler
+	Odin_OS_Type :: enum int {
+		Unknown,
+		Windows,
+		Darwin,
+		Linux,
+		Essence,
+		FreeBSD,
+		WASI,
+		JS,
+		Freestanding,
+	}
+*/
+Odin_OS_Type :: type_of(ODIN_OS)
+
+/*
+	// Defined internally by the compiler
+	Odin_Arch_Type :: enum int {
+		Unknown,
+		amd64,
+		i386,
+		arm64,
+		wasm32,
+		wasm64,
+	}
+*/
+Odin_Arch_Type :: type_of(ODIN_ARCH)
+
 /*
 	// Defined internally by the compiler
 	Odin_Build_Mode_Type :: enum int {
@@ -417,7 +452,7 @@ Odin_Endian_Type :: type_of(ODIN_ENDIAN)
 // This is probably only useful for freestanding targets
 foreign {
 	@(link_name="__$startup_runtime")
-	_startup_runtime :: proc() ---
+	_startup_runtime :: proc "odin" () ---
 }
 
 @(link_name="__$cleanup_runtime")
@@ -425,6 +460,11 @@ _cleanup_runtime :: proc() {
 	default_temp_allocator_destroy(&global_default_temp_allocator_data)
 }
 
+_cleanup_runtime_contextless :: proc "contextless" () {
+	context = default_context()
+	_cleanup_runtime()
+}
+
 
 /////////////////////////////
 /////////////////////////////
@@ -474,16 +514,18 @@ __type_info_of :: proc "contextless" (id: typeid) -> ^Type_Info #no_bounds_check
 	return &type_table[n]
 }
 
-typeid_base :: proc "contextless" (id: typeid) -> typeid {
-	ti := type_info_of(id)
-	ti = type_info_base(ti)
-	return ti.id
+when !ODIN_DISALLOW_RTTI {
+	typeid_base :: proc "contextless" (id: typeid) -> typeid {
+		ti := type_info_of(id)
+		ti = type_info_base(ti)
+		return ti.id
+	}
+	typeid_core :: proc "contextless" (id: typeid) -> typeid {
+		ti := type_info_core(type_info_of(id))
+		return ti.id
+	}
+	typeid_base_without_enum :: typeid_core
 }
-typeid_core :: proc "contextless" (id: typeid) -> typeid {
-	ti := type_info_core(type_info_of(id))
-	return ti.id
-}
-typeid_base_without_enum :: typeid_core
 
 
 
@@ -539,7 +581,7 @@ __init_context :: proc "contextless" (c: ^Context) {
 }
 
 default_assertion_failure_proc :: proc(prefix, message: string, loc: Source_Code_Location) -> ! {
-	when ODIN_OS == "freestanding" {
+	when ODIN_OS == .Freestanding {
 		// Do nothing
 	} else {
 		print_caller_location(loc)

core/runtime/core_builtin.odin

@@ -386,12 +386,13 @@ insert_at_elem :: proc(array: ^$T/[dynamic]$E, index: int, arg: E, loc := #calle
 	if array == nil {
 		return
 	}
-	n := len(array)
+	n := max(len(array), index)
 	m :: 1
-	resize(array, n+m, loc)
-	if n+m <= len(array) {
+	new_size := n + m
+
+	if resize(array, new_size, loc) {
 		when size_of(E) != 0 {
-			copy(array[index+m:], array[index:])
+			copy(array[index + m:], array[index:])
 			array[index] = arg
 		}
 		ok = true
@@ -409,12 +410,13 @@ insert_at_elems :: proc(array: ^$T/[dynamic]$E, index: int, args: ..E, loc := #c
 		return
 	}
 
-	n := len(array)
+	n := max(len(array), index)
 	m := len(args)
-	resize(array, n+m, loc)
-	if n+m <= len(array) {
+	new_size := n + m
+
+	if resize(array, new_size, loc) {
 		when size_of(E) != 0 {
-			copy(array[index+m:], array[index:])
+			copy(array[index + m:], array[index:])
 			copy(array[index:], args)
 		}
 		ok = true
@@ -427,17 +429,18 @@ insert_at_elem_string :: proc(array: ^$T/[dynamic]$E/u8, index: int, arg: string
 	if array == nil {
 		return
 	}
-	if len(args) == 0 {
+	if len(arg) == 0 {
 		ok = true
 		return
 	}
 
-	n := len(array)
-	m := len(args)
-	resize(array, n+m, loc)
-	if n+m <= len(array) {
+	n := max(len(array), index)
+	m := len(arg)
+	new_size := n + m
+
+	if resize(array, new_size, loc) {
 		copy(array[index+m:], array[index:])
-		copy(array[index:], args)
+		copy(array[index:], arg)
 		ok = true
 	}
 	return

core/runtime/default_allocators_nil.odin

@@ -32,7 +32,7 @@ nil_allocator :: proc() -> Allocator {
 
 
 
-when ODIN_OS == "freestanding" {
+when ODIN_OS == .Freestanding {
 	default_allocator_proc :: nil_allocator_proc
 	default_allocator :: nil_allocator
 } 

core/runtime/default_temporary_allocator.odin

@@ -3,7 +3,7 @@ package runtime
 DEFAULT_TEMP_ALLOCATOR_BACKING_SIZE: int : #config(DEFAULT_TEMP_ALLOCATOR_BACKING_SIZE, 1<<22)
 
 
-when ODIN_OS == "freestanding" || ODIN_OS == "js" || ODIN_DEFAULT_TO_NIL_ALLOCATOR {
+when ODIN_OS == .Freestanding || ODIN_OS == .JS || ODIN_DEFAULT_TO_NIL_ALLOCATOR {
 	Default_Temp_Allocator :: struct {}
 	
 	default_temp_allocator_init :: proc(s: ^Default_Temp_Allocator, size: int, backup_allocator := context.allocator) {}

core/runtime/entry_unix.odin

@@ -1,5 +1,5 @@
 //+private
-//+build linux, darwin, freebsd
+//+build linux, darwin, freebsd, openbsd
 package runtime
 
 import "core:intrinsics"
@@ -30,4 +30,4 @@ when ODIN_BUILD_MODE == .Dynamic {
 		#force_no_inline _cleanup_runtime()
 		return 0
 	}
-}
+}

core/runtime/entry_windows.odin

@@ -22,7 +22,7 @@ when ODIN_BUILD_MODE == .Dynamic {
 		return true
 	}
 } else when !ODIN_TEST && !ODIN_NO_ENTRY_POINT {
-	when ODIN_ARCH == "i386" || ODIN_NO_CRT {
+	when ODIN_ARCH == .i386 || ODIN_NO_CRT {
 		@(link_name="mainCRTStartup", linkage="strong", require)
 		mainCRTStartup :: proc "stdcall" () -> i32 {
 			context = default_context()

core/runtime/error_checks.odin

@@ -1,7 +1,7 @@
 package runtime
 
 bounds_trap :: proc "contextless" () -> ! {
-	when ODIN_OS == "windows" {
+	when ODIN_OS == .Windows {
 		windows_trap_array_bounds()
 	} else {
 		trap()
@@ -9,7 +9,7 @@ bounds_trap :: proc "contextless" () -> ! {
 }
 
 type_assertion_trap :: proc "contextless" () -> ! {
-	when ODIN_OS == "windows" {
+	when ODIN_OS == .Windows {
 		windows_trap_type_assertion()
 	} else {
 		trap()
@@ -21,11 +21,12 @@ bounds_check_error :: proc "contextless" (file: string, line, column: i32, index
 	if 0 <= index && index < count {
 		return
 	}
+	@(cold)
 	handle_error :: proc "contextless" (file: string, line, column: i32, index, count: int) {
 		print_caller_location(Source_Code_Location{file, line, column, ""})
 		print_string(" Index ")
 		print_i64(i64(index))
-		print_string(" is out of bounds range 0:")
+		print_string(" is out of range 0..<")
 		print_i64(i64(count))
 		print_byte('\n')
 		bounds_trap()
@@ -35,11 +36,11 @@ bounds_check_error :: proc "contextless" (file: string, line, column: i32, index
 
 slice_handle_error :: proc "contextless" (file: string, line, column: i32, lo, hi: int, len: int) -> ! {
 	print_caller_location(Source_Code_Location{file, line, column, ""})
-	print_string(" Invalid slice indices: ")
+	print_string(" Invalid slice indices ")
 	print_i64(i64(lo))
 	print_string(":")
 	print_i64(i64(hi))
-	print_string(":")
+	print_string(" is out of range 0..<")
 	print_i64(i64(len))
 	print_byte('\n')
 	bounds_trap()
@@ -47,7 +48,7 @@ slice_handle_error :: proc "contextless" (file: string, line, column: i32, lo, h
 
 multi_pointer_slice_handle_error :: proc "contextless" (file: string, line, column: i32, lo, hi: int) -> ! {
 	print_caller_location(Source_Code_Location{file, line, column, ""})
-	print_string(" Invalid slice indices: ")
+	print_string(" Invalid slice indices ")
 	print_i64(i64(lo))
 	print_string(":")
 	print_i64(i64(hi))
@@ -81,13 +82,14 @@ dynamic_array_expr_error :: proc "contextless" (file: string, line, column: i32,
 	if 0 <= low && low <= high && high <= max {
 		return
 	}
+	@(cold)
 	handle_error :: proc "contextless" (file: string, line, column: i32, low, high, max: int) {
 		print_caller_location(Source_Code_Location{file, line, column, ""})
-		print_string(" Invalid dynamic array values: ")
+		print_string(" Invalid dynamic array indices ")
 		print_i64(i64(low))
 		print_string(":")
 		print_i64(i64(high))
-		print_string(":")
+		print_string(" is out of range 0..<")
 		print_i64(i64(max))
 		print_byte('\n')
 		bounds_trap()
@@ -97,17 +99,18 @@ dynamic_array_expr_error :: proc "contextless" (file: string, line, column: i32,
 
 
 matrix_bounds_check_error :: proc "contextless" (file: string, line, column: i32, row_index, column_index, row_count, column_count: int) {
-	if 0 <= row_index && row_index < row_count && 
+	if 0 <= row_index && row_index < row_count &&
 	   0 <= column_index && column_index < column_count {
 		return
 	}
+	@(cold)
 	handle_error :: proc "contextless" (file: string, line, column: i32, row_index, column_index, row_count, column_count: int) {
 		print_caller_location(Source_Code_Location{file, line, column, ""})
 		print_string(" Matrix indices [")
 		print_i64(i64(row_index))
 		print_string(", ")
 		print_i64(i64(column_index))
-		print_string(" is out of bounds range [0..<")
+		print_string(" is out of range [0..<")
 		print_i64(i64(row_count))
 		print_string(", 0..<")
 		print_i64(i64(column_count))
@@ -119,71 +122,101 @@ matrix_bounds_check_error :: proc "contextless" (file: string, line, column: i32
 }
 
 
-type_assertion_check :: proc "contextless" (ok: bool, file: string, line, column: i32, from, to: typeid) {
-	if ok {
-		return
-	}
-	handle_error :: proc "contextless" (file: string, line, column: i32, from, to: typeid) {
-		print_caller_location(Source_Code_Location{file, line, column, ""})
-		print_string(" Invalid type assertion from ")
-		print_typeid(from)
-		print_string(" to ")
-		print_typeid(to)
-		print_byte('\n')
-		type_assertion_trap()
-	}
-	handle_error(file, line, column, from, to)
-}
-
-type_assertion_check2 :: proc "contextless" (ok: bool, file: string, line, column: i32, from, to: typeid, from_data: rawptr) {
-	if ok {
-		return
+when ODIN_DISALLOW_RTTI {
+	type_assertion_check :: proc "contextless" (ok: bool, file: string, line, column: i32) {
+		if ok {
+			return
+		}
+		@(cold)
+		handle_error :: proc "contextless" (file: string, line, column: i32) {
+			print_caller_location(Source_Code_Location{file, line, column, ""})
+			print_string(" Invalid type assertion\n")
+			type_assertion_trap()
+		}
+		handle_error(file, line, column)
 	}
 
-	variant_type :: proc "contextless" (id: typeid, data: rawptr) -> typeid {
-		if id == nil || data == nil {
+	type_assertion_check2 :: proc "contextless" (ok: bool, file: string, line, column: i32) {
+		if ok {
+			return
+		}
+		@(cold)
+		handle_error :: proc "contextless" (file: string, line, column: i32) {
+			print_caller_location(Source_Code_Location{file, line, column, ""})
+			print_string(" Invalid type assertion\n")
+			type_assertion_trap()
+		}
+		handle_error(file, line, column)
+	}
+} else {
+	type_assertion_check :: proc "contextless" (ok: bool, file: string, line, column: i32, from, to: typeid) {
+		if ok {
+			return
+		}
+		@(cold)
+		handle_error :: proc "contextless" (file: string, line, column: i32, from, to: typeid) {
+			print_caller_location(Source_Code_Location{file, line, column, ""})
+			print_string(" Invalid type assertion from ")
+			print_typeid(from)
+			print_string(" to ")
+			print_typeid(to)
+			print_byte('\n')
+			type_assertion_trap()
+		}
+		handle_error(file, line, column, from, to)
+	}
+
+	type_assertion_check2 :: proc "contextless" (ok: bool, file: string, line, column: i32, from, to: typeid, from_data: rawptr) {
+		if ok {
+			return
+		}
+
+		variant_type :: proc "contextless" (id: typeid, data: rawptr) -> typeid {
+			if id == nil || data == nil {
+				return id
+			}
+			ti := type_info_base(type_info_of(id))
+			#partial switch v in ti.variant {
+			case Type_Info_Any:
+				return (^any)(data).id
+			case Type_Info_Union:
+				tag_ptr := uintptr(data) + v.tag_offset
+				idx := 0
+				switch v.tag_type.size {
+				case 1:  idx = int((^u8)(tag_ptr)^)   - 1
+				case 2:  idx = int((^u16)(tag_ptr)^)  - 1
+				case 4:  idx = int((^u32)(tag_ptr)^)  - 1
+				case 8:  idx = int((^u64)(tag_ptr)^)  - 1
+				case 16: idx = int((^u128)(tag_ptr)^) - 1
+				}
+				if idx < 0 {
+					return nil
+				} else if idx < len(v.variants) {
+					return v.variants[idx].id
+				}
+			}
 			return id
 		}
-		ti := type_info_base(type_info_of(id))
-		#partial switch v in ti.variant {
-		case Type_Info_Any:
-			return (^any)(data).id
-		case Type_Info_Union:
-			tag_ptr := uintptr(data) + v.tag_offset
-			idx := 0
-			switch v.tag_type.size {
-			case 1:  idx = int((^u8)(tag_ptr)^)   - 1
-			case 2:  idx = int((^u16)(tag_ptr)^)  - 1
-			case 4:  idx = int((^u32)(tag_ptr)^)  - 1
-			case 8:  idx = int((^u64)(tag_ptr)^)  - 1
-			case 16: idx = int((^u128)(tag_ptr)^) - 1
-			}
-			if idx < 0 {
-				return nil
-			} else if idx < len(v.variants) {
-				return v.variants[idx].id
+
+		@(cold)
+		handle_error :: proc "contextless" (file: string, line, column: i32, from, to: typeid, from_data: rawptr) {
+
+			actual := variant_type(from, from_data)
+
+			print_caller_location(Source_Code_Location{file, line, column, ""})
+			print_string(" Invalid type assertion from ")
+			print_typeid(from)
+			print_string(" to ")
+			print_typeid(to)
+			if actual != from {
+				print_string(", actual type: ")
+				print_typeid(actual)
 			}
+			print_byte('\n')
+			type_assertion_trap()
 		}
-		return id
+		handle_error(file, line, column, from, to, from_data)
 	}
-
-	handle_error :: proc "contextless" (file: string, line, column: i32, from, to: typeid, from_data: rawptr) {
-
-		actual := variant_type(from, from_data)
-
-		print_caller_location(Source_Code_Location{file, line, column, ""})
-		print_string(" Invalid type assertion from ")
-		print_typeid(from)
-		print_string(" to ")
-		print_typeid(to)
-		if actual != from {
-			print_string(", actual type: ")
-			print_typeid(actual)
-		}
-		print_byte('\n')
-		type_assertion_trap()
-	}
-	handle_error(file, line, column, from, to, from_data)
 }
 
 
@@ -191,6 +224,7 @@ make_slice_error_loc :: #force_inline proc "contextless" (loc := #caller_locatio
 	if 0 <= len {
 		return
 	}
+	@(cold)
 	handle_error :: proc "contextless" (loc: Source_Code_Location, len: int) {
 		print_caller_location(loc)
 		print_string(" Invalid slice length for make: ")
@@ -205,6 +239,7 @@ make_dynamic_array_error_loc :: #force_inline proc "contextless" (using loc := #
 	if 0 <= len && len <= cap {
 		return
 	}
+	@(cold)
 	handle_error :: proc "contextless" (loc: Source_Code_Location, len, cap: int) {
 		print_caller_location(loc)
 		print_string(" Invalid dynamic array parameters for make: ")
@@ -221,6 +256,7 @@ make_map_expr_error_loc :: #force_inline proc "contextless" (loc := #caller_loca
 	if 0 <= cap {
 		return
 	}
+	@(cold)
 	handle_error :: proc "contextless" (loc: Source_Code_Location, cap: int) {
 		print_caller_location(loc)
 		print_string(" Invalid map capacity for make: ")

core/runtime/internal.odin

@@ -3,7 +3,7 @@ package runtime
 import "core:intrinsics"
 
 @(private="file")
-IS_WASM :: ODIN_ARCH == "wasm32" || ODIN_ARCH == "wasm64"
+IS_WASM :: ODIN_ARCH == .wasm32 || ODIN_ARCH == .wasm64
 
 @(private)
 RUNTIME_LINKAGE :: "strong" when (
@@ -37,10 +37,8 @@ bswap_64 :: proc "contextless" (x: u64) -> u64 {
 
 bswap_128 :: proc "contextless" (x: u128) -> u128 {
 	z := transmute([4]u32)x
-	z[0] = bswap_32(z[3])
-	z[1] = bswap_32(z[2])
-	z[2] = bswap_32(z[1])
-	z[3] = bswap_32(z[0])
+	z[0], z[3] = bswap_32(z[3]), bswap_32(z[0])
+	z[1], z[2] = bswap_32(z[2]), bswap_32(z[1])
 	return transmute(u128)z
 }
 

core/runtime/print.odin

@@ -160,11 +160,19 @@ print_caller_location :: proc "contextless" (using loc: Source_Code_Location) {
 	}
 }
 print_typeid :: proc "contextless" (id: typeid) {
-	if id == nil {
-		print_string("nil")
+	when ODIN_DISALLOW_RTTI {
+		if id == nil {
+			print_string("nil")
+		} else {
+			print_string("<unknown type>")
+		}
 	} else {
-		ti := type_info_of(id)
-		print_type(ti)
+		if id == nil {
+			print_string("nil")
+		} else {
+			ti := type_info_of(id)
+			print_type(ti)
+		}
 	}
 }
 print_type :: proc "contextless" (ti: ^Type_Info) {
@@ -260,6 +268,9 @@ print_type :: proc "contextless" (ti: ^Type_Info) {
 		print_type(info.elem)
 
 	case Type_Info_Enumerated_Array:
+		if info.is_sparse {
+			print_string("#sparse")
+		}
 		print_byte('[')
 		print_type(info.index)
 		print_byte(']')