Overloaded free; 3 dotted ellipsis

name and value information
`count`, `min_value`, `max_value` constants

README.md

@@ -30,31 +30,27 @@ Odin is fast, concise, readable, pragmatic and open sourced. It is designed with
 ## Warnings
 
 * This is still highly in development and the language's design is quite volatile.
-* Syntax is not fixed.
+* Syntax is definitely not fixed
 
 ## Roadmap
 
 Not in any particular order
 
-* Compile Time Execution (CTE)
-	- More metaprogramming madness
-	- Compiler as a library
-	- AST inspection and modification
-* CTE-based build system
-* Replace LLVM backend with my own custom backend
-* Improve SSA design to accommodate for lowering to a "bytecode"
-* SSA optimizations
-* Parametric Polymorphism ("Generics")
-* Documentation Generator for "Entities"
-* Multiple Architecture support
-* Language level atomics and concurrency support
-* Linking Options
+* Custom backend to replace LLVM
+	- Improve SSA design to accommodate for lowering to a "bytecode"
+	- SSA optimizations
+	- COFF generation
+	- linker
+* Type safe "macros"
+* Documentation generator for "Entities"
+* Multiple architecture support
+* Inline assembly
+* Linking options
 	- Executable
 	- Static/Dynamic Library
-* Debug Information
+* Debug information
 	- pdb format too
-* Command Line Tooling
-* Compiler Internals:
+* Command line tooling
+* Compiler internals:
 	- Big numbers library
-	- Cyclic Type Checking (at the moment will cause compiler to go into an infinite loop)
-	- Multithreading for performance increase
+

build.bat

@@ -4,9 +4,8 @@
 set exe_name=odin.exe
 
 :: Debug = 0, Release = 1
-set release_mode=1
-
-set compiler_flags= -nologo -Oi -TC -W4 -fp:fast -fp:except- -Gm- -MP -FC -GS- -EHsc- -GR-
+set release_mode=0
+set compiler_flags= -nologo -Oi -TC -fp:fast -fp:except- -Gm- -MP -FC -GS- -EHsc- -GR-
 
 if %release_mode% EQU 0 ( rem Debug
 	set compiler_flags=%compiler_flags% -Od -MDd -Z7
@@ -16,7 +15,7 @@ if %release_mode% EQU 0 ( rem Debug
 )
 
 set compiler_warnings= ^
-	-we4013 -we4706 -we4002 -we4133 ^
+	-W4 -WX ^
 	-wd4100 -wd4101 -wd4127 -wd4189 ^
 	-wd4201 -wd4204 -wd4244 ^
 	-wd4306 ^
@@ -40,19 +39,20 @@ set compiler_settings=%compiler_includes% %compiler_flags% %compiler_warnings%
 set linker_settings=%libs% %linker_flags%
 
 
-rem set build_dir= "\"
-rem if not exist %build_dir% mkdir %build_dir%
-rem pushd %build_dir%
-	del *.pdb > NUL 2> NUL
-	del *.ilk > NUL 2> NUL
+del *.pdb > NUL 2> NUL
+del *.ilk > NUL 2> NUL
 
-	cl %compiler_settings% "src\main.c" ^
-		/link %linker_settings% -OUT:%exe_name% ^
+cl %compiler_settings% "src\main.c" ^
+	/link %linker_settings% -OUT:%exe_name% ^
 	&& odin run code/demo.odin
-	rem odin run code/demo.odin
+	rem && odin build_dll code/example.odin ^
+	rem odin run code/punity.odin
 
-
-	:do_not_compile_exe
+rem pushd src\asm
+rem 	nasm hellope.asm -fwin64 -o hellope.obj ^
+rem 	&& cl /nologo hellope.obj /link kernel32.lib /entry:main  ^
+rem 	&& hellope.exe
 rem popd
+
 :end_of_build
 

code/demo.odin

@@ -1,32 +1,283 @@
-#import "fmt.odin"
-#import "utf8.odin"
+#import "fmt.odin";
+#import "utf8.odin";
+// #import "atomic.odin";
+// #import "hash.odin";
+// #import "math.odin";
+// #import "mem.odin";
+// #import "opengl.odin";
+// #import "os.odin";
+// #import "sync.odin";
+// #import win32 "sys/windows.odin";
 
 main :: proc() {
-	MAX :: 64
-	buf:     [MAX]rune
-	backing: [MAX]byte
-	offset:  int
-
-	msg := "Hello"
-	count := utf8.rune_count(msg)
-	assert(count <= MAX)
-	runes := buf[:count]
-
-	offset = 0
-	for i := 0; i < count; i++ {
-		s := msg[offset:]
-		r, len := utf8.decode_rune(s)
-		runes[count-i-1] = r
-		offset += len
-	}
-
-	offset = 0
-	for i := 0; i < count; i++ {
-		data, len := utf8.encode_rune(runes[i])
-		copy(backing[offset:], data[:len])
-		offset += len
-	}
-
-	reverse := backing[:offset] as string
-	fmt.println(reverse) // olleH
+	syntax();
+}
+
+syntax :: proc() {
+	// Cyclic type checking
+	// Uncomment to see the error
+	// A :: struct {b: B};
+	// B :: struct {a: A};
+
+	x: int;
+	y := cast(f32)x;
+	z := transmute(u32)y;
+	// down_cast, union_cast as similar too
+
+
+
+	// Basic directives
+	fmt.printf("Basic directives = %s(%d): %s\n", #file, #line, #procedure);
+	// NOTE: new and improved `printf`
+	// TODO: It does need accurate float printing
+
+
+
+	// record fields use the same syntax a procedure signatures
+	Thing1 :: struct {
+		x: f32,
+		y: int,
+		z: ^[]int,
+	};
+	Thing2 :: struct {x: f32, y: int, z: ^[]int};
+
+	// Slice interals are now just a `ptr+count`
+	slice: []int; compile_assert(size_of_val(slice) == 2*size_of(int));
+
+	// Helper type - Help the reader understand what it is quicker
+	My_Int  :: type int;
+	My_Proc :: type proc(int) -> f32;
+
+
+	// All declarations with : are either variable or constant
+	// To make these declarations syntactically consistent
+	v_variable := 123;
+	c_constant :: 123;
+	c_type1    :: int;
+	c_type2    :: []int;
+	c_proc     :: proc() { /* code here */ };
+
+
+	x += 1;
+	x -= 1;
+	// ++ and -- have been removed
+	// x++;
+	// x--;
+	// Question: Should they be added again?
+	// They were removed as they are redundant and statements, not expressions
+	// like in C/C++
+
+
+	// You can now build files as a `.dll`
+	// `odin build_dll demo.odin`
+
+
+	// New vector syntax
+	v: [vector 3]f32;
+	v[0] = 123;
+	v.x  = 123; // valid for all vectors with count 1 to 4
+
+
+	// Next part
+	prefixes();
+}
+
+
+Prefix_Type :: struct {x: int, y: f32, z: rawptr};
+
+thread_local my_tls: Prefix_Type;
+
+prefixes :: proc() {
+	using var: Prefix_Type;
+	immutable const := Prefix_Type{1, 2, nil};
+	var.x = 123;
+	x = 123;
+	// const.x = 123; // const is immutable
+
+
+
+	foo :: proc(using immutable pt: Prefix_Type, immutable int_ptr: ^int) {
+		// int_ptr = nil; // Not valid
+		int_ptr^ = 123; // Is valid
+	}
+
+
+
+	// Same as C99's `restrict`
+	bar :: proc(no_alias a, b: ^int) {
+		// Assumes a never equals b so it can perform optimizations with that fact
+	}
+
+
+	when_statements();
+}
+
+
+
+
+
+when_statements :: proc() {
+	X :: 123 + 12;
+	Y :: X/5;
+	COND :: Y > 0;
+
+	when COND {
+		fmt.println("Y > 0");
+	} else {
+		fmt.println("Y <= 0");
+	}
+
+
+	when false {
+		this_code_does_not_exist(123, 321);
+		but_its_syntax_is_valid();
+		x :: ^^^^int;
+	}
+
+	foreign_procedures();
+}
+
+#foreign_system_library win32_user "user32.lib" when ODIN_OS == "windows";
+// NOTE: This is done on purpose for two reasons:
+// * Makes it clear where the platform specific stuff is
+// * Removes the need to solve the travelling salesman problem when importing files :P
+
+foreign_procedures :: proc() {
+	ShowWindow  :: proc(hwnd: rawptr, cmd_show: i32) -> i32 #foreign win32_user;
+	show_window :: proc(hwnd: rawptr, cmd_show: i32) -> i32 #foreign win32_user "ShowWindow";
+	// NOTE: If that library doesn't get used, it doesn't get linked with
+	// NOTE: There is not link checking yet to see if that procedure does come from that library
+
+	// See sys/windows.odin for more examples
+
+	special_expressions();
+}
+
+special_expressions :: proc() {
+	// Block expression
+	x := {
+		a: f32 = 123;
+		b := a-123;
+		c := b/a;
+		give c;
+	}; // semicolon is required as it's an expression
+
+	y := if x < 50 {
+		give x;
+	} else {
+		// TODO: Type cohesion is not yet finished
+		give 123;
+	}; // semicolon is required as it's an expression
+
+
+	// This is allows for inline blocks of code and will be a useful feature to have when
+	// macros will be implemented into the language
+
+	loops();
+}
+
+loops :: proc() {
+	// The C-style for loop
+	for i := 0; i < 123; i += 1 {
+		break;
+	}
+	for i := 0; i < 123; {
+		break;
+	}
+	for false {
+		break;
+	}
+	for {
+		break;
+	}
+
+
+	for i in 0..<123 { // 123 exclusive
+	}
+
+	for i in 0...122 { // 122 inclusive
+	}
+
+	for val, idx in 12..<16 {
+		fmt.println(val, idx);
+	}
+
+	primes := [...]int{2, 3, 5, 7, 11, 13, 17, 19};
+
+	for p in primes {
+		fmt.println(p);
+	}
+
+	// Pointers to arrays, slices, or strings are allowed
+	for _ in ^primes {
+		// ignore the value and just iterate across it
+	}
+
+
+
+	name := "你好，世界";
+	fmt.println(name);
+	for r in name {
+		compile_assert(type_of_val(r) == rune);
+		fmt.printf("%r\n", r);
+	}
+
+	when false {
+		for i, size := 0; i < name.count; i += size {
+			r: rune;
+			r, size = utf8.decode_rune(name[i:]);
+			fmt.printf("%r\n", r);
+		}
+	}
+
+	procedure_overloading();
+}
+
+
+procedure_overloading :: proc() {
+	THINGF :: 14451.1;
+	THINGI :: 14451;
+
+	foo :: proc() {
+		fmt.printf("Zero args\n");
+	}
+	foo :: proc(i: int) {
+		fmt.printf("int arg, i=%d\n", i);
+	}
+	foo :: proc(f: f64) {
+		i := cast(int)f;
+		fmt.printf("f64 arg, f=%d\n", i);
+	}
+
+	foo();
+	foo(THINGF);
+	// foo(THINGI); // 14451 is just a number so it could go to either procedures
+	foo(cast(int)THINGI);
+
+
+
+
+	foo :: proc(x: ^i32) -> (int, int) {
+		fmt.println("^int");
+		return 123, cast(int)(x^);
+	}
+	foo :: proc(x: rawptr) {
+		fmt.println("rawptr");
+	}
+
+
+	a: i32 = 123;
+	b: f32;
+	c: rawptr;
+	fmt.println(foo(^a));
+	foo(^b);
+	foo(c);
+	// foo(nil); // nil could go to numerous types thus the ambiguity
+
+	f: proc();
+	f = foo; // The correct `foo` to chosen
+	f();
+
+
+	// See math.odin and atomic.odin for more examples
 }

code/game.odin

@@ -1,60 +1,60 @@
-#import "win32.odin"
-#import "fmt.odin"
-#import "math.odin"
-#import "os.odin"
-#import "opengl.odin" as gl
+#import "win32.odin" when ODIN_OS == "windows";
+#import "fmt.odin";
+#import "math.odin";
+#import "os.odin";
+#import gl "opengl.odin";
 
-TWO_HEARTS :: '💕'
+TWO_HEARTS :: '💕';
 
-win32_perf_count_freq := win32.GetQueryPerformanceFrequency()
+win32_perf_count_freq := win32.GetQueryPerformanceFrequency();
 time_now :: proc() -> f64 {
-	assert(win32_perf_count_freq != 0)
+	assert(win32_perf_count_freq != 0);
 
-	counter: i64
-	win32.QueryPerformanceCounter(^counter)
-	result := counter as f64 / win32_perf_count_freq as f64
-	return result
+	counter: i64;
+	win32.QueryPerformanceCounter(^counter);
+	result := counter as f64 / win32_perf_count_freq as f64;
+	return result;
 }
 win32_print_last_error :: proc() {
-	err_code := win32.GetLastError() as int
+	err_code := win32.GetLastError() as int;
 	if err_code != 0 {
-		fmt.println("GetLastError: %", err_code)
+		fmt.println("GetLastError: %", err_code);
 	}
 }
 
 // Yuk!
 to_c_string :: proc(s: string) -> []u8 {
-	c_str := new_slice(u8, s.count+1)
-	copy(c_str, s as []byte)
-	c_str[s.count] = 0
-	return c_str
+	c_str := new_slice(u8, s.count+1);
+	copy(c_str, s as []byte);
+	c_str[s.count] = 0;
+	return c_str;
 }
 
 
 Window :: struct {
-	width, height:      int
-	wc:                 win32.WNDCLASSEXA
-	dc:                 win32.HDC
-	hwnd:               win32.HWND
-	opengl_context, rc: win32.HGLRC
-	c_title:            []u8
+	width, height:      int;
+	wc:                 win32.WNDCLASSEXA;
+	dc:                 win32.HDC;
+	hwnd:               win32.HWND;
+	opengl_context, rc: win32.HGLRC;
+	c_title:            []u8;
 }
 
 make_window :: proc(title: string, msg, height: int, window_proc: win32.WNDPROC) -> (Window, bool) {
-	using win32
+	using win32;
 
-	w: Window
-	w.width, w.height = msg, height
+	w: Window;
+	w.width, w.height = msg, height;
 
-	class_name := "Win32-Odin-Window\x00"
-	c_class_name := class_name.data
+	class_name := "Win32-Odin-Window\x00";
+	c_class_name := class_name.data;
 	if title[title.count-1] != 0 {
-		w.c_title = to_c_string(title)
+		w.c_title = to_c_string(title);
 	} else {
-		w.c_title = title as []u8
+		w.c_title = title as []u8;
 	}
 
-	instance := GetModuleHandleA(nil)
+	instance := GetModuleHandleA(nil);
 
 	w.wc = WNDCLASSEXA{
 		size       = size_of(WNDCLASSEXA) as u32,
@@ -65,8 +65,8 @@ make_window :: proc(title: string, msg, height: int, window_proc: win32.WNDPROC)
 	};
 
 	if RegisterClassExA(^w.wc) == 0 {
-		win32_print_last_error()
-		return w, false
+		win32_print_last_error();
+		return w, false;
 	}
 
 	w.hwnd = CreateWindowExA(0,
@@ -74,14 +74,14 @@ make_window :: proc(title: string, msg, height: int, window_proc: win32.WNDPROC)
 	                         WS_VISIBLE | WS_OVERLAPPED | WS_CAPTION | WS_SYSMENU | WS_MINIMIZEBOX,
 	                         CW_USEDEFAULT, CW_USEDEFAULT,
 	                         w.width as i32, w.height as i32,
-	                         nil, nil, instance, nil)
+	                         nil, nil, instance, nil);
 
 	if w.hwnd == nil {
-		win32_print_last_error()
-		return w, false
+		win32_print_last_error();
+		return w, false;
 	}
 
-	w.dc = GetDC(w.hwnd)
+	w.dc = GetDC(w.hwnd);
 
 	{
 		pfd := PIXELFORMATDESCRIPTOR{
@@ -94,122 +94,122 @@ make_window :: proc(title: string, msg, height: int, window_proc: win32.WNDPROC)
 			depth_bits   = 24,
 			stencil_bits = 8,
 			layer_type   = PFD_MAIN_PLANE,
-		}
+		};
 
-		SetPixelFormat(w.dc, ChoosePixelFormat(w.dc, ^pfd), nil)
-		w.opengl_context = wglCreateContext(w.dc)
-		wglMakeCurrent(w.dc, w.opengl_context)
+		SetPixelFormat(w.dc, ChoosePixelFormat(w.dc, ^pfd), nil);
+		w.opengl_context = wglCreateContext(w.dc);
+		wglMakeCurrent(w.dc, w.opengl_context);
 
 		attribs := [8]i32{
 			WGL_CONTEXT_MAJOR_VERSION_ARB, 2,
 			WGL_CONTEXT_MINOR_VERSION_ARB, 1,
 			WGL_CONTEXT_PROFILE_MASK_ARB, WGL_CONTEXT_COMPATIBILITY_PROFILE_BIT_ARB,
 			0, // NOTE(bill): tells the proc that this is the end of attribs
-		}
+		};
 
-		wglCreateContextAttribsARB := wglGetProcAddress(("wglCreateContextAttribsARB\x00" as string).data) as wglCreateContextAttribsARBType
-		w.rc = wglCreateContextAttribsARB(w.dc, 0, ^attribs[0])
-		wglMakeCurrent(w.dc, w.rc)
-		SwapBuffers(w.dc)
+		wglCreateContextAttribsARB := wglGetProcAddress(("wglCreateContextAttribsARB\x00" as string).data) as wglCreateContextAttribsARBType;
+		w.rc = wglCreateContextAttribsARB(w.dc, 0, ^attribs[0]);
+		wglMakeCurrent(w.dc, w.rc);
+		SwapBuffers(w.dc);
 	}
 
-	return w, true
+	return w, true;
 }
 
 destroy_window :: proc(w: ^Window) {
-	free(w.c_title.data)
+	free(w.c_title.data);
 }
 
 display_window :: proc(w: ^Window) {
-	win32.SwapBuffers(w.dc)
+	win32.SwapBuffers(w.dc);
 }
 
 
 run :: proc() {
-	using win32
-	using math
+	using win32;
+	using math;
 
 	win32_proc :: proc(hwnd: HWND, msg: u32, wparam: WPARAM, lparam: LPARAM) -> LRESULT #no_inline {
 		if msg == WM_DESTROY || msg == WM_CLOSE || msg == WM_QUIT {
-			os.exit(0)
-			return 0
+			os.exit(0);
+			return 0;
 		}
-		return DefWindowProcA(hwnd, msg, wparam, lparam)
+		return DefWindowProcA(hwnd, msg, wparam, lparam);
 	}
 
-	window, window_success := make_window("Odin Language Demo", 854, 480, win32_proc)
+	window, window_success := make_window("Odin Language Demo", 854, 480, win32_proc);
 	if !window_success {
-		return
+		return;
 	}
-	defer destroy_window(^window)
+	defer destroy_window(^window);
 
-	gl.init()
+	gl.init();
 
 
-	prev_time := time_now()
-	running := true
+	prev_time := time_now();
+	running := true;
 
-	pos := Vec2{100, 100}
+	pos := Vec2{100, 100};
 
 	for running {
-		curr_time := time_now()
-		dt := (curr_time - prev_time) as f32
-		prev_time = curr_time
+		curr_time := time_now();
+		dt := (curr_time - prev_time) as f32;
+		prev_time = curr_time;
 
-		msg: MSG
+		msg: MSG;
 		for PeekMessageA(^msg, nil, 0, 0, PM_REMOVE) > 0 {
 			if msg.message == WM_QUIT {
-				running = false
+				running = false;
 			}
-			TranslateMessage(^msg)
-			DispatchMessageA(^msg)
+			TranslateMessage(^msg);
+			DispatchMessageA(^msg);
 		}
 
 		if is_key_down(Key_Code.ESCAPE) {
-			running = false
+			running = false;
 		}
 
 		{
-			SPEED :: 500
-			v: Vec2
+			SPEED :: 500;
+			v: Vec2;
 
-			if is_key_down(Key_Code.RIGHT) { v[0] += 1 }
-			if is_key_down(Key_Code.LEFT)  { v[0] -= 1 }
-			if is_key_down(Key_Code.UP)    { v[1] += 1 }
-			if is_key_down(Key_Code.DOWN)  { v[1] -= 1 }
+			if is_key_down(Key_Code.RIGHT) { v[0] += 1; }
+			if is_key_down(Key_Code.LEFT)  { v[0] -= 1; }
+			if is_key_down(Key_Code.UP)    { v[1] += 1; }
+			if is_key_down(Key_Code.DOWN)  { v[1] -= 1; }
 
-			v = vec2_norm0(v)
+			v = vec2_norm0(v);
 
-			pos += v * Vec2{SPEED * dt}
+			pos += v * Vec2{SPEED * dt};
 		}
 
 
-		gl.ClearColor(0.5, 0.7, 1.0, 1.0)
-		gl.Clear(gl.COLOR_BUFFER_BIT)
+		gl.ClearColor(0.5, 0.7, 1.0, 1.0);
+		gl.Clear(gl.COLOR_BUFFER_BIT);
 
-		gl.LoadIdentity()
+		gl.LoadIdentity();
 		gl.Ortho(0, window.width as f64,
-		         0, window.height as f64, 0, 1)
+		         0, window.height as f64, 0, 1);
 
 		draw_rect :: proc(x, y, w, h: f32) {
-			gl.Begin(gl.TRIANGLES)
-			defer gl.End()
+			gl.Begin(gl.TRIANGLES);
+			defer gl.End();
 
-			gl.Color3f(1, 0, 0); gl.Vertex3f(x,   y,   0)
-			gl.Color3f(0, 1, 0); gl.Vertex3f(x+w, y,   0)
-			gl.Color3f(0, 0, 1); gl.Vertex3f(x+w, y+h, 0)
+			gl.Color3f(1, 0, 0); gl.Vertex3f(x,   y,   0);
+			gl.Color3f(0, 1, 0); gl.Vertex3f(x+w, y,   0);
+			gl.Color3f(0, 0, 1); gl.Vertex3f(x+w, y+h, 0);
 
-			gl.Color3f(0, 0, 1); gl.Vertex3f(x+w, y+h, 0)
-			gl.Color3f(1, 1, 0); gl.Vertex3f(x,   y+h, 0)
-			gl.Color3f(1, 0, 0); gl.Vertex3f(x,   y,   0)
+			gl.Color3f(0, 0, 1); gl.Vertex3f(x+w, y+h, 0);
+			gl.Color3f(1, 1, 0); gl.Vertex3f(x,   y+h, 0);
+			gl.Color3f(1, 0, 0); gl.Vertex3f(x,   y,   0);
 		}
 
-		draw_rect(pos.x, pos.y, 50, 50)
+		draw_rect(pos.x, pos.y, 50, 50);
 
-		display_window(^window)
-		ms_to_sleep := (16 - 1000*dt) as i32
+		display_window(^window);
+		ms_to_sleep := (16 - 1000*dt) as i32;
 		if ms_to_sleep > 0 {
-			win32.Sleep(ms_to_sleep)
+			win32.Sleep(ms_to_sleep);
 		}
 	}
 }

code/http_test.odin

@@ -1,6 +1,6 @@
-#import "fmt.odin" as fmt
+#import "fmt.odin"
 
-#foreign_system_library "Ws2_32"
+#foreign_system_library "Ws2_32" when ODIN_OS == "windows"
 
 
 SOCKET :: type uint
@@ -95,7 +95,7 @@ WSAGetLastError :: proc() -> i32
 
 to_c_string :: proc(s: string) -> ^byte {
 	c_str := new_slice(byte, s.count+1)
-	assert(c_str.data != null)
+	assert(c_str.data != nil)
 	copy(c_str, s as []byte)
 	c_str[s.count] = 0
 	return c_str.data
@@ -103,7 +103,7 @@ to_c_string :: proc(s: string) -> ^byte {
 
 run :: proc() {
 	wsa: WSADATA
-	res:  ^addrinfo = null
+	res:  ^addrinfo = nil
 	hints: addrinfo
 	s, client: SOCKET
 
@@ -118,7 +118,7 @@ run :: proc() {
 	hints.protocol = IPPROTO_TCP
 	hints.flags    = AI_PASSIVE
 
-	if getaddrinfo(null, to_c_string("8080"), ^hints, ^res) != 0 {
+	if getaddrinfo(nil, to_c_string("8080"), ^hints, ^res) != 0 {
 		fmt.println("getaddrinfo failed: ", WSAGetLastError())
 		return
 	}
@@ -134,7 +134,7 @@ run :: proc() {
 	bind(s, res.addr, res.addrlen as i32)
 	listen(s, SOMAXCONN)
 
-	client = accept(s, null, null)
+	client = accept(s, nil, 0)
 	if client == INVALID_SOCKET {
 		fmt.println("socket failed: ", WSAGetLastError())
 		return

code/old_demos/demo001.odin

@@ -1,9 +1,9 @@
-#import "fmt.odin"
-#import "os.odin"
-#import "mem.odin"
-// #import "http_test.odin" as ht
-// #import "game.odin" as game
-// #import "punity.odin" as pn
+#import "fmt.odin";
+#import "os.odin";
+#import "mem.odin";
+// #import "http_test.odin" as ht;
+// #import "game.odin" as game;
+// #import "punity.odin" as pn;
 
 main :: proc() {
 	// struct_padding()
@@ -26,58 +26,58 @@ main :: proc() {
 struct_padding :: proc() {
 	{
 		A :: struct {
-			a: u8
-			b: u32
-			c: u16
+			a: u8,
+			b: u32,
+			c: u16,
 		}
 
 		B :: struct {
-			a: [7]u8
-			b: [3]u16
-			c: u8
-			d: u16
+			a: [7]u8,
+			b: [3]u16,
+			c: u8,
+			d: u16,
 		}
 
-		fmt.println("size_of(A):", size_of(A))
-		fmt.println("size_of(B):", size_of(B))
+		fmt.println("size_of(A):", size_of(A));
+		fmt.println("size_of(B):", size_of(B));
 
 		// n.b. http://cbloomrants.blogspot.co.uk/2012/07/07-23-12-structs-are-not-what-you-want.html
 	}
 	{
 		A :: struct #ordered {
-			a: u8
-			b: u32
-			c: u16
+			a: u8,
+			b: u32,
+			c: u16,
 		}
 
 		B :: struct #ordered {
-			a: [7]u8
-			b: [3]u16
-			c: u8
-			d: u16
+			a: [7]u8,
+			b: [3]u16,
+			c: u8,
+			d: u16,
 		}
 
-		fmt.println("size_of(A):", size_of(A))
-		fmt.println("size_of(B):", size_of(B))
+		fmt.println("size_of(A):", size_of(A));
+		fmt.println("size_of(B):", size_of(B));
 
 		// C-style structure layout
 	}
 	{
 		A :: struct #packed {
-			a: u8
-			b: u32
-			c: u16
+			a: u8,
+			b: u32,
+			c: u16,
 		}
 
 		B :: struct #packed {
-			a: [7]u8
-			b: [3]u16
-			c: u8
-			d: u16
+			a: [7]u8,
+			b: [3]u16,
+			c: u8,
+			d: u16,
 		}
 
-		fmt.println("size_of(A):", size_of(A))
-		fmt.println("size_of(B):", size_of(B))
+		fmt.println("size_of(A):", size_of(A));
+		fmt.println("size_of(B):", size_of(B));
 
 		// Useful for explicit layout
 	}
@@ -119,7 +119,7 @@ struct_padding :: proc() {
 }
 
 bounds_checking :: proc() {
-	x: [4]int
+	x: [4]int;
 	// x[-1] = 0; // Compile Time
 	// x[4]  = 0; // Compile Time
 
@@ -132,9 +132,9 @@ bounds_checking :: proc() {
 	// Works for arrays, strings, slices, and related procedures & operations
 
 	{
-		base: [10]int
-		s := base[2:6]
-		a, b := -1, 6
+		base: [10]int;
+		s := base[2:6];
+		a, b := -1, 6;
 
 		#no_bounds_check {
 			s[a] = 0;
@@ -154,69 +154,69 @@ bounds_checking :: proc() {
 
 type_introspection :: proc() {
 	{
-		info: ^Type_Info
-		x: int
+		info: ^Type_Info;
+		x: int;
 
-		info = type_info(int) // by type
-		info = type_info_of_val(x) // by value
+		info = type_info(int); // by type
+		info = type_info_of_val(x); // by value
 		// See: runtime.odin
 
-		match type i : info {
+		match type i in info {
 		case Type_Info.Integer:
-			fmt.println("integer!")
+			fmt.println("integer!");
 		case Type_Info.Float:
-			fmt.println("float!")
+			fmt.println("float!");
 		default:
-			fmt.println("potato!")
+			fmt.println("potato!");
 		}
 
 		// Unsafe cast
-		integer_info := info as ^Type_Info.Integer
+		integer_info := cast(^Type_Info.Integer)info;
 	}
 
 	{
 		Vector2 :: struct { x, y: f32 }
 		Vector3 :: struct { x, y, z: f32 }
 
-		v1: Vector2
-		v2: Vector3
-		v3: Vector3
+		v1: Vector2;
+		v2: Vector3;
+		v3: Vector3;
 
-		t1 := type_info_of_val(v1)
-		t2 := type_info_of_val(v2)
-		t3 := type_info_of_val(v3)
+		t1 := type_info_of_val(v1);
+		t2 := type_info_of_val(v2);
+		t3 := type_info_of_val(v3);
 
-		fmt.println()
-		fmt.print("Type of v1 is:\n\t", t1)
+		fmt.println();
+		fmt.print("Type of v1 is:\n\t", t1);
 
-		fmt.println()
-		fmt.print("Type of v2 is:\n\t", t2)
+		fmt.println();
+		fmt.print("Type of v2 is:\n\t", t2);
 
-		fmt.println("\n")
-		fmt.println("t1 == t2:", t1 == t2)
-		fmt.println("t2 == t3:", t2 == t3)
+		fmt.println("\n");
+		fmt.println("t1 == t2:", t1 == t2);
+		fmt.println("t2 == t3:", t2 == t3);
 	}
 }
 
 any_type :: proc() {
-	a: any
+	a: any;
 
-	x: int = 123
-	y: f64 = 6.28
-	z: string = "Yo-Yo Ma"
+	x: int = 123;
+	y: f64 = 6.28;
+	z: string = "Yo-Yo Ma";
 	// All types can be implicit cast to `any`
-	a = x
-	a = y
-	a = z
-	a = a // This the "identity" type, it doesn't get converted
+	a = x;
+	a = y;
+	a = z;
+	a = a; // This the "identity" type, it doesn't get converted
 
-	a = 123 // Literals are copied onto the stack first
+	a = 123; // Literals are copied onto the stack first
 
 	// any has two members
 	// data      - rawptr to the data
 	// type_info - pointer to the type info
 
-	fmt.println(x, y, z)
+	fmt.println(x, y, z);
 	// See: fmt.odin
 	// For variadic any procedures in action
 }
@@ -232,15 +232,15 @@ crazy_introspection :: proc() {
 			TOMATO,
 		}
 
-		s: string
-		s = enum_to_string(Fruit.PEACH)
-		fmt.println(s)
+		s: string;
+		// s = enum_to_string(Fruit.PEACH);
+		fmt.println(s);
 
-		f := Fruit.GRAPE
-		s = enum_to_string(f)
-		fmt.println(s)
+		f := Fruit.GRAPE;
+		// s = enum_to_string(f);
+		fmt.println(s);
 
-		fmt.println(f)
+		fmt.println(f);
 		// See: runtime.odin
 	}
 
@@ -259,15 +259,15 @@ crazy_introspection :: proc() {
 			TOMATO,
 		}
 
-		fruit_ti := type_info(Fruit)
-		name := (fruit_ti as ^Type_Info.Named).name // Unsafe casts
-		info := type_info_base(fruit_ti) as ^Type_Info.Enum // Unsafe casts
+		fruit_ti := type_info(Fruit);
+		name := (cast(^Type_Info.Named)fruit_ti).name; // Unsafe casts
+		info := cast(^Type_Info.Enum)type_info_base(fruit_ti); // Unsafe casts
 
 		fmt.printf("% :: enum % {\n", name, info.base);
-		for i := 0; i < info.values.count; i++ {
-			fmt.printf("\t%\t= %,\n", info.names[i], info.values[i])
+		for i := 0; i < info.values.count; i += 1 {
+			fmt.printf("\t%\t= %,\n", info.names[i], info.values[i]);
 		}
-		fmt.printf("}\n")
+		fmt.printf("}\n");
 
 		// NOTE(bill): look at that type-safe printf!
 	}
@@ -275,10 +275,10 @@ crazy_introspection :: proc() {
 	{
 		Vector3 :: struct {x, y, z: f32}
 
-		a := Vector3{x = 1, y = 4, z = 9}
-		fmt.println(a)
-		b := Vector3{x = 9, y = 3, z = 1}
-		fmt.println(b)
+		a := Vector3{x = 1, y = 4, z = 9};
+		fmt.println(a);
+		b := Vector3{x = 9, y = 3, z = 1};
+		fmt.println(b);
 
 		// NOTE(bill): See fmt.odin
 	}
@@ -301,7 +301,7 @@ namespaces_and_files :: proc() {
 		#import "file.odin" as _
 
 		// Exporting import
-		#load "file.odin"
+		#include "file.odin"
 	*/
 
 	// Talk about scope rules and diagram

code/old_demos/demo002.odin

@@ -1,7 +1,7 @@
 // Demo 002
-#load "basic.odin"
-#load "math.odin"
-// #load "game.odin"
+#include "basic.odin"
+#include "math.odin"
+// #include "game.odin"
 
 #thread_local tls_int: int
 

code/old_demos/old_runtime.odin

@@ -1,4 +1,4 @@
-#load "win32.odin"
+#include "win32.odin"
 
 assume :: proc(cond: bool) #foreign "llvm.assume"
 

code/punity.odin

@@ -1,34 +1,35 @@
-#import "win32.odin"
-#import "fmt.odin"
-#import "os.odin"
+#import win32 "sys/windows.odin";
+#import "fmt.odin";
+#import "os.odin";
+#import "mem.odin";
 
-CANVAS_WIDTH  :: 128
-CANVAS_HEIGHT :: 128
-CANVAS_SCALE  :: 3
-FRAME_TIME    :: 1.0/30.0
-WINDOW_TITLE  : string : "Punity\x00"
+CANVAS_WIDTH  :: 128;
+CANVAS_HEIGHT :: 128;
+CANVAS_SCALE  :: 3;
+FRAME_TIME    :: 1.0/30.0;
+WINDOW_TITLE  :: "Punity\x00";
 
-_ := compile_assert(CANVAS_WIDTH % 16 == 0)
+_ := compile_assert(CANVAS_WIDTH % 16 == 0);
 
-WINDOW_WIDTH  :: CANVAS_WIDTH  * CANVAS_SCALE
-WINDOW_HEIGHT :: CANVAS_HEIGHT * CANVAS_SCALE
+WINDOW_WIDTH  :: CANVAS_WIDTH  * CANVAS_SCALE;
+WINDOW_HEIGHT :: CANVAS_HEIGHT * CANVAS_SCALE;
 
 
-STACK_CAPACITY   :: 1<<20
-STORAGE_CAPACITY :: 1<<20
+STACK_CAPACITY   :: 1<<20;
+STORAGE_CAPACITY :: 1<<20;
 
-DRAW_LIST_RESERVE :: 128
+DRAW_LIST_RESERVE :: 128;
 
-MAX_KEYS :: 256
+MAX_KEYS :: 256;
 
 Core :: struct {
-	stack:   ^Bank
-	storage: ^Bank
+	stack:   ^Bank,
+	storage: ^Bank,
 
-	running:       bool
-	key_modifiers: u32
-	key_states:    [MAX_KEYS]byte
-	key_deltas:    [MAX_KEYS]byte
+	running:       bool,
+	key_modifiers: u32,
+	key_states:    [MAX_KEYS]byte,
+	key_deltas:    [MAX_KEYS]byte,
 
 	perf_frame,
 	perf_frame_inner,
@@ -36,70 +37,66 @@ Core :: struct {
 	perf_audio,
 	perf_blit,
 	perf_blit_cvt,
-	perf_blit_gdi: Perf_Span
+	perf_blit_gdi: Perf_Span,
 
-	frame: i64
+	frame: i64,
 
-	canvas: Canvas
-	draw_list: ^Draw_List
+	canvas:    Canvas,
+	draw_list: ^Draw_List,
 }
 
 Perf_Span :: struct {
-	stamp: f64
-	delta: f32
+	stamp: f64,
+	delta: f32,
 }
 
 Bank :: struct {
-	memory: []byte
-	cursor: int
+	memory: []byte,
+	cursor: int,
 }
 
 Bank_State :: struct {
-	state: Bank
-	bank: ^Bank
+	state: Bank,
+	bank: ^Bank,
 }
 
 
 Color :: raw_union {
-	using channels: struct{ a, b, g, r: byte }
-	rgba: u32
+	using channels: struct{a, b, g, r: byte},
+	rgba: u32,
 }
 
 Palette :: struct {
-	colors: [256]Color
-	colors_count: byte
+	colors: [256]Color,
+	colors_count: byte,
 }
 
 
 Rect :: raw_union {
-	using minmax: struct {
-		min_x, min_y, max_x, max_y: int
-	}
-	using pos: struct {
-		left, top, right, bottom: int
-	}
-	e: [4]int
+	using minmax: struct {min_x, min_y, max_x, max_y: int},
+	using pos: struct {left, top, right, bottom: int},
+	e: [4]int,
 }
 
 Bitmap :: struct {
-	pixels: []byte
-	width:  int
-	height: int
+	pixels: []byte,
+	width:  int,
+	height: int,
 }
 
 Font :: struct {
-	using bitmap: Bitmap
-	char_width:   int
-	char_height:  int
+	using bitmap: Bitmap,
+	char_width:   int,
+	char_height:  int,
 }
 
 Canvas :: struct {
-	using bitmap: ^Bitmap
-	palette:      Palette
-	translate_x:  int
-	translate_y:  int
-	clip:         Rect
-	font:         ^Font
+	using bitmap: ^Bitmap,
+	palette:      Palette,
+	translate_x:  int,
+	translate_y:  int,
+	clip:         Rect,
+	font:         ^Font,
 }
 
 DrawFlag :: enum {
@@ -109,12 +106,9 @@ DrawFlag :: enum {
 	MASK   = 1<<2,
 }
 
-
+Draw_Item :: struct {}
 Draw_List :: struct {
-	Item :: struct {
-
-	}
-	items: []Item
+	items: []Draw_Item,
 }
 
 Key :: enum {
@@ -268,113 +262,112 @@ Key :: enum {
 	BACKSLASH          = 92,  /* \ */
 	RIGHT_BRACKET      = 93,  /* ] */
 	GRAVE_ACCENT       = 96,  /* ` */
-}
+};
 
 
 key_down :: proc(k: Key) -> bool {
-	return _core.key_states[k] != 0
+	return _core.key_states[k] != 0;
 }
 
 key_pressed :: proc(k: Key) -> bool {
-	return (_core.key_deltas[k] != 0) && key_down(k)
+	return (_core.key_deltas[k] != 0) && key_down(k);
 }
 
 
 
 
-win32_perf_count_freq := win32.GetQueryPerformanceFrequency()
+win32_perf_count_freq := win32.GetQueryPerformanceFrequency();
 time_now :: proc() -> f64 {
-	assert(win32_perf_count_freq != 0)
+	assert(win32_perf_count_freq != 0);
 
-	counter: i64
-	win32.QueryPerformanceCounter(^counter)
-	result := counter as f64 / win32_perf_count_freq as f64
-	return result
+	counter: i64;
+	win32.QueryPerformanceCounter(^counter);
+	result := cast(f64)counter / cast(f64)win32_perf_count_freq;
+	return result;
 }
 
-_core: Core
+_core: Core;
 
 run :: proc(user_init, user_step: proc(c: ^Core)) {
-	using win32
+	using win32;
 
+	_core.running = true;
 
-	_core.running = true
-
-	win32_proc :: proc(hwnd: HWND, msg: u32, wparam: WPARAM, lparam: LPARAM) -> LRESULT #no_inline #stdcall {
+	win32_proc :: proc(hwnd: win32.HWND, msg: u32, wparam: win32.WPARAM, lparam: win32.LPARAM) -> win32.LRESULT #no_inline #cc_c {
 		win32_app_key_mods :: proc() -> u32 {
-			mods: u32 = 0
+			mods: u32 = 0;
 
 			if is_key_down(Key_Code.SHIFT) {
-				mods |= Key.MOD_SHIFT as u32;
+				mods |= cast(u32)Key.MOD_SHIFT;
 			}
 			if is_key_down(Key_Code.CONTROL) {
-				mods |= Key.MOD_CONTROL as u32;
+				mods |= cast(u32)Key.MOD_CONTROL;
 			}
 			if is_key_down(Key_Code.MENU) {
-				mods |= Key.MOD_ALT as u32;
+				mods |= cast(u32)Key.MOD_ALT;
 			}
 			if is_key_down(Key_Code.LWIN) || is_key_down(Key_Code.RWIN) {
-				mods |= Key.MOD_SUPER as u32;
+				mods |= cast(u32)Key.MOD_SUPER;
 			}
 
-			return mods
+			return mods;
 		}
 
 		match msg {
 		case WM_KEYDOWN:
-			_core.key_modifiers = win32_app_key_mods()
+			_core.key_modifiers = win32_app_key_mods();
 			if wparam < MAX_KEYS {
-				_core.key_states[wparam] = 1
-				_core.key_deltas[wparam] = 1
+				_core.key_states[wparam] = 1;
+				_core.key_deltas[wparam] = 1;
 			}
-			return 0
+			return 0;
 
 		case WM_KEYUP:
-			_core.key_modifiers = win32_app_key_mods()
+			_core.key_modifiers = win32_app_key_mods();
 			if wparam < MAX_KEYS {
-				_core.key_states[wparam] = 0
-				_core.key_deltas[wparam] = 1
+				_core.key_states[wparam] = 0;
+				_core.key_deltas[wparam] = 1;
 			}
-			return 0
+			return 0;
 
 		case WM_CLOSE:
-			PostQuitMessage(0)
-			_core.running = false
-			return 0
+			PostQuitMessage(0);
+			_core.running = false;
+			return 0;
 		}
 
-		return DefWindowProcA(hwnd, msg, wparam, lparam)
+		return DefWindowProcA(hwnd, msg, wparam, lparam);
 	}
 
 
 	window_class := WNDCLASSEXA{
-		class_name = ("Punity\x00" as string).data, // C-style string
-		size       = size_of(WNDCLASSEXA) as u32,
+		class_name = (cast(string)"Punity\x00").data, // C-style string
+		size       = size_of(WNDCLASSEXA),
 		style      = CS_HREDRAW | CS_VREDRAW | CS_OWNDC,
-		instance   = GetModuleHandleA(null) as HINSTANCE,
+		instance   = cast(HINSTANCE)GetModuleHandleA(nil),
 		wnd_proc   = win32_proc,
 		// wnd_proc   = DefWindowProcA,
-		background = GetStockObject(BLACK_BRUSH) as HBRUSH,
-	}
+		background = cast(HBRUSH)GetStockObject(BLACK_BRUSH),
+	};
 
 	if RegisterClassExA(^window_class) == 0 {
-		fmt.fprintln(os.stderr, "RegisterClassExA failed")
-		return
+		fmt.fprintln(os.stderr, "RegisterClassExA failed");
+		return;
 	}
 
-	screen_width  := GetSystemMetrics(SM_CXSCREEN)
-	screen_height := GetSystemMetrics(SM_CYSCREEN)
+	screen_width  := GetSystemMetrics(SM_CXSCREEN);
+	screen_height := GetSystemMetrics(SM_CYSCREEN);
 
-	rc: RECT
-	rc.left   = (screen_width - WINDOW_WIDTH)   / 2
-	rc.top    = (screen_height - WINDOW_HEIGHT) / 2
-	rc.right  = rc.left + WINDOW_WIDTH
-	rc.bottom = rc.top + WINDOW_HEIGHT
+	rc: RECT;
+	rc.left   = (screen_width - WINDOW_WIDTH)   / 2;
+	rc.top    = (screen_height - WINDOW_HEIGHT) / 2;
+	rc.right  = rc.left + WINDOW_WIDTH;
+	rc.bottom = rc.top + WINDOW_HEIGHT;
 
-	style: u32 = WS_CAPTION | WS_SYSMENU | WS_MINIMIZEBOX
-	assert(AdjustWindowRect(^rc, style, 0) != 0)
+	style: u32 = WS_CAPTION | WS_SYSMENU | WS_MINIMIZEBOX;
+	assert(AdjustWindowRect(^rc, style, 0) != 0);
 
-	wt := WINDOW_TITLE
+	wt := WINDOW_TITLE;
 
 	win32_window := CreateWindowExA(0,
 	                                window_class.class_name,
@@ -382,83 +375,82 @@ run :: proc(user_init, user_step: proc(c: ^Core)) {
 	                                style,
 	                                rc.left, rc.top,
 	                                rc.right-rc.left, rc.bottom-rc.top,
-	                                null, null, window_class.instance,
-	                                null);
+	                                nil, nil, window_class.instance,
+	                                nil);
 
-	if win32_window == null {
-		fmt.fprintln(os.stderr, "CreateWindowExA failed")
-		return
+	if win32_window == nil {
+		fmt.fprintln(os.stderr, "CreateWindowExA failed");
+		return;
 	}
 
 
 	window_bmi: BITMAPINFO;
-	window_bmi.size        = size_of(BITMAPINFO.HEADER) as u32
-	window_bmi.width       = CANVAS_WIDTH
-	window_bmi.height      = CANVAS_HEIGHT
-	window_bmi.planes      = 1
-	window_bmi.bit_count   = 32
-	window_bmi.compression = BI_RGB
+	window_bmi.size        = size_of(BITMAPINFOHEADER);
+	window_bmi.width       = CANVAS_WIDTH;
+	window_bmi.height      = CANVAS_HEIGHT;
+	window_bmi.planes      = 1;
+	window_bmi.bit_count   = 32;
+	window_bmi.compression = BI_RGB;
 
 
-	user_init(^_core)
+	user_init(^_core);
 
-
-	ShowWindow(win32_window, SW_SHOW)
+	ShowWindow(win32_window, SW_SHOW);
 
 	window_buffer := new_slice(u32, CANVAS_WIDTH * CANVAS_HEIGHT);
-	assert(window_buffer.data != null)
-	defer free(window_buffer.data)
+	defer free(window_buffer);
 
-	for i := 0; i < window_buffer.count; i++ {
-		window_buffer[i] = 0xff00ff
+
+	for i := 0; i < window_buffer.count; i += 1 {
+		window_buffer[i] = 0xff00ff;
 	}
 
 
-	prev_time, curr_time,dt: f64
-	prev_time = time_now()
-	curr_time = time_now()
-	total_time : f64 = 0
+	dt: f64;
+	prev_time := time_now();
+	curr_time := time_now();
+	total_time : f64 = 0;
 	offset_x := 0;
 	offset_y := 0;
 
-	message: MSG
+	message: MSG;
 	for _core.running {
-		curr_time = time_now()
-		dt = curr_time - prev_time
-		prev_time = curr_time
-		total_time += dt
+		curr_time = time_now();
+		dt = curr_time - prev_time;
+		prev_time = curr_time;
+		total_time += dt;
 
-		offset_x += 1
-		offset_y += 2
+		offset_x += 1;
+		offset_y += 2;
 
 		{
-			data: [128]byte
-			buf := data[:0]
-			fmt.bprintf(^buf, "Punity: % ms\x00", dt*1000)
-			win32.SetWindowTextA(win32_window, buf.data)
+			data: [128]byte;
+			buf: fmt.Buffer;
+			buf.data = data[:];
+			fmt.bprintf(^buf, "Punity: %.4f ms\x00", dt*1000);
+			win32.SetWindowTextA(win32_window, ^buf[0]);
 		}
 
 
-		for y := 0; y < CANVAS_HEIGHT; y++ {
-			for x := 0; x < CANVAS_WIDTH; x++ {
-				g := (x % 32) * 8
-				b := (y % 32) * 8
-				window_buffer[x + y*CANVAS_WIDTH] = (g << 8 | b) as u32
+		for y := 0; y < CANVAS_HEIGHT; y += 1 {
+			for x := 0; x < CANVAS_WIDTH; x += 1 {
+				g := (x % 32) * 8;
+				b := (y % 32) * 8;
+				window_buffer[x + y*CANVAS_WIDTH] = cast(u32)(g << 8 | b);
 			}
 		}
 
-		memory_zero(^_core.key_deltas[0], size_of_val(_core.key_deltas[0]))
+		mem.zero(^_core.key_deltas[0], size_of_val(_core.key_deltas));
 
-
-		for PeekMessageA(^message, null, 0, 0, PM_REMOVE) != 0 {
+		for PeekMessageA(^message, nil, 0, 0, PM_REMOVE) != 0 {
 			if message.message == WM_QUIT {
-				_core.running = false
+				_core.running = false;
 			}
-			TranslateMessage(^message)
-			DispatchMessageA(^message)
+			TranslateMessage(^message);
+			DispatchMessageA(^message);
 		}
 
-		user_step(^_core)
+		user_step(^_core);
 
 		dc := GetDC(win32_window);
 		StretchDIBits(dc,
@@ -467,18 +459,31 @@ run :: proc(user_init, user_step: proc(c: ^Core)) {
 		              window_buffer.data,
 		              ^window_bmi,
 		              DIB_RGB_COLORS,
-		              SRCCOPY)
-		ReleaseDC(win32_window, dc)
+		              SRCCOPY);
+		ReleaseDC(win32_window, dc);
 
 
 		{
-			delta := time_now() - prev_time
-			ms := ((FRAME_TIME - delta) * 1000) as i32
+			delta := time_now() - prev_time;
+			ms := cast(i32)((FRAME_TIME - delta) * 1000);
 			if ms > 0 {
-				win32.Sleep(ms)
+				win32.Sleep(ms);
 			}
 		}
 
-		_core.frame++
+		_core.frame += 1;
 	}
 }
+
+
+main :: proc() {
+	user_init :: proc(c: ^Core) {
+
+	}
+
+	user_step :: proc(c: ^Core) {
+
+	}
+
+	run(user_init, user_step);
+}

code/test.odin

@@ -28,7 +28,7 @@ thing :: proc() {
 */
 
 /*
-#load "fmt.odin"
+#include "fmt.odin"
 
 thing :: proc() {
 	println("Hello5!")

core/_preload.odin

@@ -1,288 +1,272 @@
-#shared_global_scope
+#shared_global_scope;
 
-#import "os.odin"
-#import "fmt.odin"
-#import "mem.odin"
+#import "os.odin";
+#import "fmt.odin";
+#import "mem.odin";
+#import "utf8.odin";
 
-/*
-Optimization_Level :: enum {
-	DEBUG,
-	RELEASE,
-}
+// IMPORTANT NOTE(bill): `type_info` & `type_info_val` cannot be used within a
+// #shared_global_scope due to  the internals of the compiler.
+// This could change at a later date if the all these data structures are
+// implemented within the compiler rather than in this "preload" file
 
-Bounds_Check_Mode :: enum {
-	ON,
-	OFF,
-}
-
-Build_Options :: struct {
-	optimization_level: Optimization_Level
-
-	bounds_check: Bounds_Check_Mode
-
-	output_name: string
-	output_path: string
-}
-
-build_options: Build_Options
-*/
 
 // IMPORTANT NOTE(bill): Do not change the order of any of this data
 // The compiler relies upon this _exact_ order
-Type_Info :: union {
-	Member :: struct #ordered {
-		name:      string     // can be empty if tuple
-		type_info: ^Type_Info
-		offset:    int        // offsets are not used in tuples
-	}
-	Record :: struct #ordered {
-		fields:  []Member
-		size:    int // in bytes
-		align:   int // in bytes
-		packed:  bool
-		ordered: bool
-	}
-
-	Named: struct #ordered {
-		name: string
-		base: ^Type_Info // This will _not_ be a Type_Info.Named
-	}
-	Integer: struct #ordered {
-		size:   int // in bytes
-		signed: bool
-	}
-	Float: struct #ordered {
-		size: int // in bytes
-	}
-	Any:     struct #ordered {}
-	String:  struct #ordered {}
-	Boolean: struct #ordered {}
-	Pointer: struct #ordered {
-		elem: ^Type_Info // nil -> rawptr
-	}
-	Maybe: struct #ordered {
-		elem: ^Type_Info
-	}
-	Procedure: struct #ordered {
-		params:   ^Type_Info // Type_Info.Tuple
-		results:  ^Type_Info // Type_Info.Tuple
-		variadic: bool
-	}
-	Array: struct #ordered {
-		elem:      ^Type_Info
-		elem_size: int
-		count:     int
-	}
-	Slice: struct #ordered {
-		elem:      ^Type_Info
-		elem_size: int
-	}
-	Vector: struct #ordered {
-		elem:      ^Type_Info
-		elem_size: int
-		count:     int
-		align:     int
-	}
-	Tuple:     Record
-	Struct:    Record
-	Union:     Record
-	Raw_Union: Record
-	Enum: struct #ordered {
-		base:   ^Type_Info
-		values: []i64
-		names:  []string
-	}
+Type_Info_Member :: struct #ordered {
+	name:      string,     // can be empty if tuple
+	type_info: ^Type_Info,
+	offset:    int,        // offsets are not used in tuples
 }
+Type_Info_Record :: struct #ordered {
+	fields:  []Type_Info_Member,
+	size:    int, // in bytes
+	align:   int, // in bytes
+	packed:  bool,
+	ordered: bool,
+}
+Type_Info_Enum_Value :: raw_union {
+	f: f64,
+	i: i64,
+}
+
+// NOTE(bill): This much the same as the compiler's
+Calling_Convention :: enum {
+	ODIN = 0,
+	C    = 1,
+	STD  = 2,
+	FAST = 3,
+}
+
+Type_Info :: union {
+	Named: struct #ordered {
+		name: string,
+		base: ^Type_Info, // This will _not_ be a Type_Info.Named
+	},
+	Integer: struct #ordered {
+		size:   int, // in bytes
+		signed: bool,
+	},
+	Float: struct #ordered {
+		size: int, // in bytes
+	},
+	Any:     struct #ordered {},
+	String:  struct #ordered {},
+	Boolean: struct #ordered {},
+	Pointer: struct #ordered {
+		elem: ^Type_Info, // nil -> rawptr
+	},
+	Maybe: struct #ordered {
+		elem: ^Type_Info,
+	},
+	Procedure: struct #ordered {
+		params:     ^Type_Info, // Type_Info.Tuple
+		results:    ^Type_Info, // Type_Info.Tuple
+		variadic:   bool,
+		convention: Calling_Convention,
+	},
+	Array: struct #ordered {
+		elem:      ^Type_Info,
+		elem_size: int,
+		count:     int,
+	},
+	Slice: struct #ordered {
+		elem:      ^Type_Info,
+		elem_size: int,
+	},
+	Vector: struct #ordered {
+		elem:      ^Type_Info,
+		elem_size: int,
+		count:     int,
+		align:     int,
+	},
+	Tuple:     Type_Info_Record,
+	Struct:    Type_Info_Record,
+	Union:     Type_Info_Record,
+	Raw_Union: Type_Info_Record,
+	Enum: struct #ordered {
+		base:  ^Type_Info,
+		names: []string,
+		values: []Type_Info_Enum_Value,
+	},
+}
+
+// // NOTE(bill): only the ones that are needed (not all types)
+// // This will be set by the compiler
+// immutable __type_infos: []Type_Info;
 
 type_info_base :: proc(info: ^Type_Info) -> ^Type_Info {
 	if info == nil {
-		return nil
+		return nil;
 	}
-	base := info
-	match type i : base {
+	base := info;
+	match type i in base {
 	case Type_Info.Named:
-		base = i.base
+		base = i.base;
 	}
-	return base
+	return base;
 }
 
 
 
-assume :: proc(cond: bool) #foreign "llvm.assume"
-
-__debug_trap       :: proc()        #foreign "llvm.debugtrap"
-__trap             :: proc()        #foreign "llvm.trap"
-read_cycle_counter :: proc() -> u64 #foreign "llvm.readcyclecounter"
-
-bit_reverse16 :: proc(b: u16) -> u16 #foreign "llvm.bitreverse.i16"
-bit_reverse32 :: proc(b: u32) -> u32 #foreign "llvm.bitreverse.i32"
-bit_reverse64 :: proc(b: u64) -> u64 #foreign "llvm.bitreverse.i64"
-
-byte_swap16 :: proc(b: u16) -> u16 #foreign "llvm.bswap.i16"
-byte_swap32 :: proc(b: u32) -> u32 #foreign "llvm.bswap.i32"
-byte_swap64 :: proc(b: u64) -> u64 #foreign "llvm.bswap.i64"
-
-fmuladd32 :: proc(a, b, c: f32) -> f32 #foreign "llvm.fmuladd.f32"
-fmuladd64 :: proc(a, b, c: f64) -> f64 #foreign "llvm.fmuladd.f64"
-
-
-
-
+assume :: proc(cond: bool) #foreign __llvm_core "llvm.assume";
 
+__debug_trap       :: proc()        #foreign __llvm_core "llvm.debugtrap";
+__trap             :: proc()        #foreign __llvm_core "llvm.trap";
+read_cycle_counter :: proc() -> u64 #foreign __llvm_core "llvm.readcyclecounter";
 
 
+Allocator_Mode :: enum u8 {
+	ALLOC,
+	FREE,
+	FREE_ALL,
+	RESIZE,
+}
+Allocator_Proc :: type proc(allocator_data: rawptr, mode: Allocator_Mode,
+                            size, alignment: int,
+                            old_memory: rawptr, old_size: int, flags: u64) -> rawptr;
 Allocator :: struct #ordered {
-	Mode :: enum {
-		ALLOC,
-		FREE,
-		FREE_ALL,
-		RESIZE,
-	}
-	Proc :: type proc(allocator_data: rawptr, mode: Mode,
-	                  size, alignment: int,
-	                  old_memory: rawptr, old_size: int, flags: u64) -> rawptr
-
-
-	procedure: Proc;
-	data:      rawptr
+	procedure: Allocator_Proc,
+	data:      rawptr,
 }
 
-
 Context :: struct #ordered {
-	thread_id: int
+	thread_id: int,
 
-	allocator: Allocator
+	allocator: Allocator,
 
-	user_data:  rawptr
-	user_index: int
+	user_data:  rawptr,
+	user_index: int,
 }
 
-#thread_local __context: Context
+thread_local __context: Context;
 
 
-DEFAULT_ALIGNMENT :: align_of({4}f32)
+DEFAULT_ALIGNMENT :: align_of([vector 4]f32);
 
 
 __check_context :: proc() {
-	c := ^__context
+	c := ^__context;
 
 	if c.allocator.procedure == nil {
-		c.allocator = default_allocator()
+		c.allocator = default_allocator();
 	}
 	if c.thread_id == 0 {
-		c.thread_id = os.current_thread_id()
+		c.thread_id = os.current_thread_id();
 	}
 }
 
-alloc :: proc(size: int) -> rawptr #inline { return alloc_align(size, DEFAULT_ALIGNMENT) }
+alloc :: proc(size: int) -> rawptr #inline { return alloc_align(size, DEFAULT_ALIGNMENT); }
 
 alloc_align :: proc(size, alignment: int) -> rawptr #inline {
-	__check_context()
-	a := context.allocator
-	return a.procedure(a.data, Allocator.Mode.ALLOC, size, alignment, nil, 0, 0)
+	__check_context();
+	a := context.allocator;
+	return a.procedure(a.data, Allocator_Mode.ALLOC, size, alignment, nil, 0, 0);
 }
 
-free :: proc(ptr: rawptr) #inline {
-	__check_context()
-	a := context.allocator
+free_ptr :: proc(ptr: rawptr) #inline {
+	__check_context();
+	a := context.allocator;
 	if ptr != nil {
-		a.procedure(a.data, Allocator.Mode.FREE, 0, 0, ptr, 0, 0)
+		a.procedure(a.data, Allocator_Mode.FREE, 0, 0, ptr, 0, 0);
 	}
 }
 free_all :: proc() #inline {
-	__check_context()
-	a := context.allocator
-	a.procedure(a.data, Allocator.Mode.FREE_ALL, 0, 0, nil, 0, 0)
+	__check_context();
+	a := context.allocator;
+	a.procedure(a.data, Allocator_Mode.FREE_ALL, 0, 0, nil, 0, 0);
 }
 
 
-resize       :: proc(ptr: rawptr, old_size, new_size: int) -> rawptr #inline { return resize_align(ptr, old_size, new_size, DEFAULT_ALIGNMENT) }
+resize       :: proc(ptr: rawptr, old_size, new_size: int) -> rawptr #inline { return resize_align(ptr, old_size, new_size, DEFAULT_ALIGNMENT); }
 resize_align :: proc(ptr: rawptr, old_size, new_size, alignment: int) -> rawptr #inline {
-	__check_context()
-	a := context.allocator
-	return a.procedure(a.data, Allocator.Mode.RESIZE, new_size, alignment, ptr, old_size, 0)
+	__check_context();
+	a := context.allocator;
+	return a.procedure(a.data, Allocator_Mode.RESIZE, new_size, alignment, ptr, old_size, 0);
 }
 
 
 
 default_resize_align :: proc(old_memory: rawptr, old_size, new_size, alignment: int) -> rawptr {
 	if old_memory == nil {
-		return alloc_align(new_size, alignment)
+		return alloc_align(new_size, alignment);
 	}
 
 	if new_size == 0 {
-		free(old_memory)
-		return nil
+		free(old_memory);
+		return nil;
 	}
 
 	if new_size == old_size {
-		return old_memory
+		return old_memory;
 	}
 
-	new_memory := alloc_align(new_size, alignment)
+	new_memory := alloc_align(new_size, alignment);
 	if new_memory == nil {
-		return nil
+		return nil;
 	}
 
-	mem.copy(new_memory, old_memory, min(old_size, new_size));
-	free(old_memory)
-	return new_memory
+	mem.copy(new_memory, old_memory, min(old_size, new_size));;
+	free(old_memory);
+	return new_memory;
 }
 
 
-default_allocator_proc :: proc(allocator_data: rawptr, mode: Allocator.Mode,
+default_allocator_proc :: proc(allocator_data: rawptr, mode: Allocator_Mode,
                                size, alignment: int,
                                old_memory: rawptr, old_size: int, flags: u64) -> rawptr {
-	using Allocator.Mode
-/*
-	match mode {
-	case ALLOC:
-		total_size := size + alignment + size_of(mem.AllocationHeader)
-		ptr := os.heap_alloc(total_size)
-		header := ptr as ^mem.AllocationHeader
-		ptr = mem.align_forward(header+1, alignment)
-		mem.allocation_header_fill(header, ptr, size)
-		return mem.zero(ptr, size)
+	using Allocator_Mode;
 
-	case FREE:
-		os.heap_free(mem.allocation_header(old_memory))
-		return nil
+	when false {
+		match mode {
+		case ALLOC:
+			total_size := size + alignment + size_of(mem.AllocationHeader);
+			ptr := os.heap_alloc(total_size);
+			header := (^mem.AllocationHeader)(ptr);
+			ptr = mem.align_forward(header+1, alignment);
+			mem.allocation_header_fill(header, ptr, size);
+			return mem.zero(ptr, size);
 
-	case FREE_ALL:
-		// NOTE(bill): Does nothing
+		case FREE:
+			os.heap_free(mem.allocation_header(old_memory));
+			return nil;
 
-	case RESIZE:
-		total_size := size + alignment + size_of(mem.AllocationHeader)
-		ptr := os.heap_resize(mem.allocation_header(old_memory), total_size)
-		header := ptr as ^mem.AllocationHeader
-		ptr = mem.align_forward(header+1, alignment)
-		mem.allocation_header_fill(header, ptr, size)
-		return mem.zero(ptr, size)
-	}
-*/
-	match mode {
-	case ALLOC:
-		return os.heap_alloc(size)
+		case FREE_ALL:
+			// NOTE(bill): Does nothing
 
-	case FREE:
-		os.heap_free(old_memory)
-		return nil
+		case RESIZE:
+			total_size := size + alignment + size_of(mem.AllocationHeader);
+			ptr := os.heap_resize(mem.allocation_header(old_memory), total_size);
+			header := (^mem.AllocationHeader)(ptr);
+			ptr = mem.align_forward(header+1, alignment);
+			mem.allocation_header_fill(header, ptr, size);
+			return mem.zero(ptr, size);
+		}
+	} else {
+		match mode {
+		case ALLOC:
+			return os.heap_alloc(size);
 
-	case FREE_ALL:
-		// NOTE(bill): Does nothing
+		case FREE:
+			os.heap_free(old_memory);
+			return nil;
 
-	case RESIZE:
-		return os.heap_resize(old_memory, size)
+		case FREE_ALL:
+			// NOTE(bill): Does nothing
+
+		case RESIZE:
+			return os.heap_resize(old_memory, size);
+		}
 	}
 
-	return nil
+	return nil;
 }
 
 default_allocator :: proc() -> Allocator {
 	return Allocator{
 		procedure = default_allocator_proc,
 		data = nil,
-	}
+	};
 }
 
 
@@ -297,71 +281,58 @@ default_allocator :: proc() -> Allocator {
 
 __string_eq :: proc(a, b: string) -> bool {
 	if a.count != b.count {
-		return false
+		return false;
 	}
 	if a.data == b.data {
-		return true
+		return true;
 	}
-	return mem.compare(a.data, b.data, a.count) == 0
+	return mem.compare(cast(rawptr)a.data, cast(rawptr)b.data, a.count) == 0;
 }
 
-__string_cmp :: proc(a, b : string) -> int {
-	return mem.compare(a.data, b.data, min(a.count, b.count))
+__string_cmp :: proc(a, b: string) -> int {
+	return mem.compare(cast(rawptr)a.data, cast(rawptr)b.data, min(a.count, b.count));
 }
 
-__string_ne :: proc(a, b: string) -> bool #inline { return !__string_eq(a, b) }
-__string_lt :: proc(a, b: string) -> bool #inline { return __string_cmp(a, b) < 0 }
-__string_gt :: proc(a, b: string) -> bool #inline { return __string_cmp(a, b) > 0 }
-__string_le :: proc(a, b: string) -> bool #inline { return __string_cmp(a, b) <= 0 }
-__string_ge :: proc(a, b: string) -> bool #inline { return __string_cmp(a, b) >= 0 }
+__string_ne :: proc(a, b: string) -> bool #inline { return !__string_eq(a, b); }
+__string_lt :: proc(a, b: string) -> bool #inline { return __string_cmp(a, b) < 0; }
+__string_gt :: proc(a, b: string) -> bool #inline { return __string_cmp(a, b) > 0; }
+__string_le :: proc(a, b: string) -> bool #inline { return __string_cmp(a, b) <= 0; }
+__string_ge :: proc(a, b: string) -> bool #inline { return __string_cmp(a, b) >= 0; }
 
 
 __assert :: proc(file: string, line, column: int, msg: string) #inline {
-	fmt.fprintf(os.stderr, "%(%:%) Runtime assertion: %\n",
-	            file, line, column, msg)
-	__debug_trap()
+	fmt.fprintf(os.stderr, "%s(%d:%d) Runtime assertion: %s\n",
+	            file, line, column, msg);
+	__debug_trap();
 }
 
-__bounds_check_error :: proc(file: string, line, column: int,
-                             index, count: int) {
+__bounds_check_error :: proc(file: string, line, column: int, index, count: int) {
 	if 0 <= index && index < count {
-		return
+		return;
 	}
-	fmt.fprintf(os.stderr, "%(%:%) Index % is out of bounds range [0, %)\n",
-	            file, line, column, index, count)
-	__debug_trap()
+	fmt.fprintf(os.stderr, "%s(%d:%d) Index %d is out of bounds range 0..<%d\n",
+	            file, line, column, index, count);
+	__debug_trap();
 }
 
-__slice_expr_error :: proc(file: string, line, column: int,
-                           low, high, max: int) {
-	if 0 <= low && low <= high && high <= max {
-		return
-	}
-	fmt.fprintf(os.stderr, "%(%:%) Invalid slice indices: [%:%:%]\n",
-	            file, line, column, low, high, max)
-	__debug_trap()
-}
-__substring_expr_error :: proc(file: string, line, column: int,
-                               low, high: int) {
+__slice_expr_error :: proc(file: string, line, column: int, low, high: int) {
 	if 0 <= low && low <= high {
-		return
+		return;
 	}
-	fmt.fprintf(os.stderr, "%(%:%) Invalid substring indices: [%:%:%]\n",
-	            file, line, column, low, high)
-	__debug_trap()
+	fmt.fprintf(os.stderr, "%s(%d:%d) Invalid slice indices: [%d:%d]\n",
+	            file, line, column, low, high);
+	__debug_trap();
+}
+__substring_expr_error :: proc(file: string, line, column: int, low, high: int) {
+	if 0 <= low && low <= high {
+		return;
+	}
+	fmt.fprintf(os.stderr, "%s(%d:%d) Invalid substring indices: [%d:%d]\n",
+	            file, line, column, low, high);
+	__debug_trap();
 }
 
-__enum_to_string :: proc(info: ^Type_Info, value: i64) -> string {
-	match type ti : type_info_base(info) {
-	case Type_Info.Enum:
-		// TODO(bill): Search faster than linearly
-		for i := 0; i < ti.values.count; i++ {
-			if ti.values[i] == value {
-				return ti.names[i]
-			}
-		}
-	}
-	return ""
+__string_decode_rune :: proc(s: string) -> (rune, int) #inline {
+	return utf8.decode_rune(s);
 }
 
-

core/_soft_numbers.odin

@@ -1,157 +1,158 @@
-#shared_global_scope
-
-#import "fmt.odin"
+#shared_global_scope;
 
 
-__u128_mod :: proc(a, b: u128) -> u128 #link_name "__umodti3" {
-	_, r := __u128_quo_mod(a, b)
-	return r
-}
+// import "fmt.odin";
 
-__u128_quo :: proc(a, b: u128) -> u128 #link_name "__udivti3" {
-	n, _ := __u128_quo_mod(a, b)
-	return n
-}
+// proc __u128_mod(a, b: u128) -> u128 #link_name "__umodti3" {
+// 	var _, r := __u128_quo_mod(a, b)
+// 	return r
+// }
 
-__i128_mod :: proc(a, b: i128) -> i128 #link_name "__modti3" {
-	_, r := __i128_quo_mod(a, b)
-	return r
-}
+// proc __u128_quo(a, b: u128) -> u128 #link_name "__udivti3" {
+// 	var n, _ := __u128_quo_mod(a, b)
+// 	return n
+// }
 
-__i128_quo :: proc(a, b: i128) -> i128 #link_name "__divti3" {
-	n, _ := __i128_quo_mod(a, b)
-	return n
-}
+// proc __i128_mod(a, b: i128) -> i128 #link_name "__modti3" {
+// 	var _, r := __i128_quo_mod(a, b)
+// 	return r
+// }
 
-__i128_quo_mod :: proc(a, b: i128) -> (i128, i128) #link_name "__divmodti4" {
-	s := b >> 127
-	b = (b ~ s) - s
-	s = a >> 127
-	a = (a ~ s) - s
+// proc __i128_quo(a, b: i128) -> i128 #link_name "__divti3" {
+// 	var n, _ := __i128_quo_mod(a, b)
+// 	return n
+// }
 
-	n, r := __u128_quo_mod(a as u128, b as u128)
-	return (n as i128 ~ s) - s, (r as i128 ~ s) - s
-}
+// proc __i128_quo_mod(a, b: i128) -> (i128, i128) #link_name "__divmodti4" {
+// 	var s := b >> 127
+// 	b = (b ~ s) - s
+// 	s = a >> 127
+// 	a = (a ~ s) - s
+
+// 	var n, r := __u128_quo_mod(a as u128, b as u128)
+// 	return (n as i128 ~ s) - s, (r as i128 ~ s) - s
+// }
 
 
-__u128_quo_mod :: proc(a, b: u128) -> (u128, u128) #link_name "__udivmodti4" {
-	clz :: proc(x: u64) -> u64 {
-		clz_u64 :: proc(x: u64, is_zero_undef: bool) -> u64 #foreign "llvm.ctlz.i64"
-		return clz_u64(x, false)
-	}
-	ctz :: proc(x: u64) -> u64 {
-		ctz_u64 :: proc(x: u64, is_zero_undef: bool) -> u64 #foreign "llvm.cttz.i64"
-		return ctz_u64(x, false)
-	}
+// proc __u128_quo_mod(a, b: u128) -> (u128, u128) #link_name "__udivmodti4" {
+// 	proc clz(x: u64) -> u64 {
+// 		proc clz_u64(x: u64, is_zero_undef: bool) -> u64 #foreign "llvm.ctlz.i64"
+// 		return clz_u64(x, false)
+// 	}
+// 	proc ctz(x: u64) -> u64 {
+// 		proc ctz_u64(x: u64, is_zero_undef: bool) -> u64 #foreign "llvm.cttz.i64"
+// 		return ctz_u64(x, false)
+// 	}
 
 
-	u128_lo_hi :: raw_union {
-		all: u128
-		using _lohi: struct {lo, hi: u64}
-	}
+// 	u128_lo_hi :: raw_union {
+// 		all: u128
+// 		using _lohi: struct {lo, hi: u64;}
+// 	}
 
-	n, d, q, r: u128_lo_hi
-	sr: u64
+// 	n, d, q, r: u128_lo_hi
+// 	sr: u64
 
-	n.all = a
-	d.all = b
+// 	n.all = a
+// 	d.all = b
 
-	if n.hi == 0 {
-		if d.hi == 0 {
-			return (n.lo / d.lo) as u128, (n.lo % d.lo) as u128
-		}
-		return 0, n.lo as u128
-	}
-	if d.lo == 0 {
-		if d.hi == 0 {
-			return (n.hi / d.lo) as u128, (n.hi % d.lo) as u128
-		}
-		if n.lo == 0 {
-			r.hi = n.hi % d.hi
-			r.lo = 0
-			return (n.hi / d.hi) as u128, r.all
-		}
-		if (d.hi & (d.hi-1)) == 0 {
-			r.lo = n.lo
-			r.hi = n.hi & (d.hi-1)
-			return (n.hi >> ctz(d.hi)) as u128, r.all
-		}
+// 	if n.hi == 0 {
+// 		if d.hi == 0 {
+// 			return (n.lo / d.lo) as u128, (n.lo % d.lo) as u128
+// 		}
+// 		return 0, n.lo as u128
+// 	}
+// 	if d.lo == 0 {
+// 		if d.hi == 0 {
+// 			return (n.hi / d.lo) as u128, (n.hi % d.lo) as u128
+// 		}
+// 		if n.lo == 0 {
+// 			r.hi = n.hi % d.hi
+// 			r.lo = 0
+// 			return (n.hi / d.hi) as u128, r.all
+// 		}
+// 		if (d.hi & (d.hi-1)) == 0 {
+// 			r.lo = n.lo
+// 			r.hi = n.hi & (d.hi-1)
+// 			return (n.hi >> ctz(d.hi)) as u128, r.all
+// 		}
 
-		sr = clz(d.hi) - clz(n.hi)
-		if sr > 64 - 2 {
-			return 0, n.all
-		}
-		sr++
-		q.lo = 0
-		q.hi = n.lo << (64-sr)
-		r.hi = n.hi >> sr
-		r.lo = (n.hi << (64-sr)) | (n.lo >> sr)
-	} else {
-		if d.hi == 0 {
-			if (d.lo & (d.lo - 1)) == 0 {
-				rem := (n.lo % (d.lo - 1)) as u128
-				if d.lo == 1 {
-					return n.all, rem
-				}
-				sr = ctz(d.lo)
-				q.hi = n.hi >> sr
-				q.lo = (n.hi << (64-sr)) | (n.lo >> sr);
-				return q.all, rem
-			}
+// 		sr = clz(d.hi) - clz(n.hi)
+// 		if sr > 64 - 2 {
+// 			return 0, n.all
+// 		}
+// 		sr++
+// 		q.lo = 0
+// 		q.hi = n.lo << (64-sr)
+// 		r.hi = n.hi >> sr
+// 		r.lo = (n.hi << (64-sr)) | (n.lo >> sr)
+// 	} else {
+// 		if d.hi == 0 {
+// 			if (d.lo & (d.lo - 1)) == 0 {
+// 				var rem := (n.lo % (d.lo - 1)) as u128
+// 				if d.lo == 1 {
+// 					return n.all, rem
+// 				}
+// 				sr = ctz(d.lo)
+// 				q.hi = n.hi >> sr
+// 				q.lo = (n.hi << (64-sr)) | (n.lo >> sr)
+// 				return q.all, rem
+// 			}
 
-			sr = 1 + 64 + clz(d.lo) - clz(n.hi)
+// 			sr = 1 + 64 + clz(d.lo) - clz(n.hi)
 
-			q.all = n.all << (128-sr)
-			r.all = n.all >> sr
-			if sr == 64 {
-				q.lo = 0
-				q.hi = n.lo
-				r.hi = 0
-				r.lo = n.hi
-			} else if sr < 64 {
-				q.lo = 0
-				q.hi = n.lo << (64-sr)
-				r.hi = n.hi >> sr
-				r.lo = (n.hi << (64-sr)) | (n.lo >> sr)
-			} else {
-				q.lo = n.lo << (128-sr)
-				q.hi = (n.hi << (128-sr)) | (n.lo >> (sr-64))
-				r.hi = 0
-				r.lo = n.hi >> (sr-64)
-			}
-		} else {
-			sr = clz(d.hi) - clz(n.hi)
-			if sr > 64-1 {
-				return 0, n.all
-			}
-			sr++
-			q.lo = 0
-			q.hi = n.lo << (64-sr)
-			r.all = n.all >> sr
-			if sr < 64 {
-				r.hi = n.hi >> sr
-				r.lo = (n.hi << (64-sr)) | (n.lo >> sr)
-			} else {
-				r.hi = 0
-				r.lo = n.hi
-			}
-		}
-	}
+// 			q.all = n.all << (128-sr)
+// 			r.all = n.all >> sr
+// 			if sr == 64 {
+// 				q.lo = 0
+// 				q.hi = n.lo
+// 				r.hi = 0
+// 				r.lo = n.hi
+// 			} else if sr < 64 {
+// 				q.lo = 0
+// 				q.hi = n.lo << (64-sr)
+// 				r.hi = n.hi >> sr
+// 				r.lo = (n.hi << (64-sr)) | (n.lo >> sr)
+// 			} else {
+// 				q.lo = n.lo << (128-sr)
+// 				q.hi = (n.hi << (128-sr)) | (n.lo >> (sr-64))
+// 				r.hi = 0
+// 				r.lo = n.hi >> (sr-64)
+// 			}
+// 		} else {
+// 			sr = clz(d.hi) - clz(n.hi)
+// 			if sr > 64-1 {
+// 				return 0, n.all
+// 			}
+// 			sr++
+// 			q.lo = 0
+// 			q.hi = n.lo << (64-sr)
+// 			r.all = n.all >> sr
+// 			if sr < 64 {
+// 				r.hi = n.hi >> sr
+// 				r.lo = (n.hi << (64-sr)) | (n.lo >> sr)
+// 			} else {
+// 				r.hi = 0
+// 				r.lo = n.hi
+// 			}
+// 		}
+// 	}
 
-	carry: u64
-	for ; sr > 0; sr-- {
-		r.hi = (r.hi << 1) | (r.lo >> (64-1))
-		r.lo = (r.lo << 1) | (r.hi >> (64-1))
-		q.hi = (q.hi << 1) | (q.lo >> (64-1))
-		q.lo = (q.lo << 1) | carry
+// 	carry: u64
+// 	for ; sr > 0; sr-- {
+// 		r.hi = (r.hi << 1) | (r.lo >> (64-1))
+// 		r.lo = (r.lo << 1) | (r.hi >> (64-1))
+// 		q.hi = (q.hi << 1) | (q.lo >> (64-1))
+// 		q.lo = (q.lo << 1) | carry
 
-		carry = 0
-		if r.all >= d.all {
-			r.all -= d.all
-			carry = 1
-		}
-	}
+// 		carry = 0
+// 		if r.all >= d.all {
+// 			r.all -= d.all
+// 			carry = 1
+// 		}
+// 	}
+
+// 	q.all = (q.all << 1) | (carry as u128)
+// 	return q.all, r.all
+// }
 
-	q.all = (q.all << 1) | (carry as u128)
-	return q.all, r.all
-}

core/atomic.odin

@@ -0,0 +1,100 @@
+// TODO(bill): Use assembly instead here to implement atomics
+// Inline vs external file?
+
+#import win32 "sys/windows.odin" when ODIN_OS == "windows";
+_ := compile_assert(ODIN_ARCH == "amd64"); // TODO(bill): x86 version
+
+
+yield_thread :: proc() { win32._mm_pause(); }
+mfence       :: proc() { win32.ReadWriteBarrier(); }
+sfence       :: proc() { win32.WriteBarrier(); }
+lfence       :: proc() { win32.ReadBarrier(); }
+
+
+load :: proc(a: ^i32) -> i32 {
+	return a^;
+}
+store :: proc(a: ^i32, value: i32) {
+	a^ = value;
+}
+compare_exchange :: proc(a: ^i32, expected, desired: i32) -> i32 {
+	return win32.InterlockedCompareExchange(a, desired, expected);
+}
+exchanged :: proc(a: ^i32, desired: i32) -> i32 {
+	return win32.InterlockedExchange(a, desired);
+}
+fetch_add :: proc(a: ^i32, operand: i32) -> i32 {
+	return win32.InterlockedExchangeAdd(a, operand);
+
+}
+fetch_and :: proc(a: ^i32, operand: i32) -> i32 {
+	return win32.InterlockedAnd(a, operand);
+}
+fetch_or :: proc(a: ^i32, operand: i32) -> i32 {
+	return win32.InterlockedOr(a, operand);
+}
+spin_lock :: proc(a: ^i32, time_out: int) -> bool { // NOTE(bill) time_out = -1 as default
+	old_value := compare_exchange(a, 1, 0);
+	counter := 0;
+	for old_value != 0 && (time_out < 0 || counter < time_out) {
+		counter += 1;
+		yield_thread();
+		old_value = compare_exchange(a, 1, 0);
+		mfence();
+	}
+	return old_value == 0;
+}
+spin_unlock :: proc(a: ^i32) {
+	store(a, 0);
+	mfence();
+}
+try_acquire_lock :: proc(a: ^i32) -> bool {
+	yield_thread();
+	old_value := compare_exchange(a, 1, 0);
+	mfence();
+	return old_value == 0;
+}
+
+
+load :: proc(a: ^i64) -> i64 {
+	return a^;
+}
+store :: proc(a: ^i64, value: i64) {
+	a^ = value;
+}
+compare_exchange :: proc(a: ^i64, expected, desired: i64) -> i64 {
+	return win32.InterlockedCompareExchange64(a, desired, expected);
+}
+exchanged :: proc(a: ^i64, desired: i64) -> i64 {
+	return win32.InterlockedExchange64(a, desired);
+}
+fetch_add :: proc(a: ^i64, operand: i64) -> i64 {
+	return win32.InterlockedExchangeAdd64(a, operand);
+}
+fetch_and :: proc(a: ^i64, operand: i64) -> i64 {
+	return win32.InterlockedAnd64(a, operand);
+}
+fetch_or :: proc(a: ^i64, operand: i64) -> i64 {
+	return win32.InterlockedOr64(a, operand);
+}
+spin_lock :: proc(a: ^i64, time_out: int) -> bool { // NOTE(bill) time_out = -1 as default
+	old_value := compare_exchange(a, 1, 0);
+	counter := 0;
+	for old_value != 0 && (time_out < 0 || counter < time_out) {
+		counter += 1;
+		yield_thread();
+		old_value = compare_exchange(a, 1, 0);
+		mfence();
+	}
+	return old_value == 0;
+}
+spin_unlock :: proc(a: ^i64) {
+	store(a, 0);
+	mfence();
+}
+try_acquire_lock :: proc(a: ^i64) -> bool {
+	yield_thread();
+	old_value := compare_exchange(a, 1, 0);
+	mfence();
+	return old_value == 0;
+}

core/hash.odin

@@ -1,164 +1,164 @@
 crc32 :: proc(data: rawptr, len: int) -> u32 {
-	result := ~(0 as u32)
-	s := slice_ptr(data as ^u8, len)
-	for i := 0; i < len; i++ {
-		b := s[i] as u32
-		result = result>>8 ~ __CRC32_TABLE[(result ~ b) & 0xff]
+	result := ~cast(u32)0;
+	s := slice_ptr(cast(^u8)data, len);
+	for i in 0..<len {
+		b := cast(u32)s[i];
+		result = result>>8 ~ __CRC32_TABLE[(result ~ b) & 0xff];
 	}
-	return ~result
+	return ~result;
 }
 crc64 :: proc(data: rawptr, len: int) -> u64 {
-	result := ~(0 as u64)
-	s := slice_ptr(data as ^u8, len)
-	for i := 0; i < len; i++ {
-		b := s[i] as u64
-		result = result>>8 ~ __CRC64_TABLE[(result ~ b) & 0xff]
+	result := ~cast(u64)0;
+	s := slice_ptr(cast(^u8)data, len);
+	for i in 0..<len {
+		b := cast(u64)s[i];
+		result = result>>8 ~ __CRC64_TABLE[(result ~ b) & 0xff];
 	}
-	return ~result
+	return ~result;
 }
 
 fnv32 :: proc(data: rawptr, len: int) -> u32 {
-	s := slice_ptr(data as ^u8, len)
+	s := slice_ptr(cast(^u8)data, len);
 
-	h: u32 = 0x811c9dc5
-	for i := 0; i < len; i++ {
-		h = (h * 0x01000193) ~ s[i] as u32
+	h: u32 = 0x811c9dc5;
+	for i in 0..<len {
+		h = (h * 0x01000193) ~ cast(u32)s[i];
 	}
-	return h
+	return h;
 }
 
 fnv64 :: proc(data: rawptr, len: int) -> u64 {
-	s := slice_ptr(data as ^u8, len)
+	s := slice_ptr(cast(^u8)data, len);
 
-	h: u64 = 0xcbf29ce484222325
-	for i := 0; i < len; i++ {
-		h = (h * 0x100000001b3) ~ s[i] as u64
+	h: u64 = 0xcbf29ce484222325;
+	for i in 0..<len {
+		h = (h * 0x100000001b3) ~ cast(u64)s[i];
 	}
-	return h
+	return h;
 }
 
 fnv32a :: proc(data: rawptr, len: int) -> u32 {
-	s := slice_ptr(data as ^u8, len)
+	s := slice_ptr(cast(^u8)data, len);
 
-	h: u32 = 0x811c9dc5
-	for i := 0; i < len; i++ {
-		h = (h ~ s[i] as u32) * 0x01000193
+	h: u32 = 0x811c9dc5;
+	for i in 0..<len {
+		h = (h ~ cast(u32)s[i]) * 0x01000193;
 	}
-	return h
+	return h;
 }
 
 fnv64a :: proc(data: rawptr, len: int) -> u64 {
-	s := slice_ptr(data as ^u8, len)
+	s := slice_ptr(cast(^u8)data, len);
 
-	h: u64 = 0xcbf29ce484222325
-	for i := 0; i < len; i++ {
-		h = (h ~ s[i] as u64) * 0x100000001b3
+	h :u64 = 0xcbf29ce484222325;
+	for i in 0..<len {
+		h = (h ~ cast(u64)s[i]) * 0x100000001b3;
 	}
-	return h
+	return h;
 }
 
 
 murmur64 :: proc(data_: rawptr, len: int) -> u64 {
-	SEED :: 0x9747b28c
+	SEED :: 0x9747b28c;
 
-	if size_of(int) == 8 {
-		m :: 0xc6a4a7935bd1e995
-		r :: 47
+	when size_of(int) == 8 {
+		m :: 0xc6a4a7935bd1e995;
+		r :: 47;
 
-		h: u64 = SEED ~ (len as u64 * m)
+		h: u64 = SEED ~ (cast(u64)len * m);
 
-		data := slice_ptr(data_ as ^u64, len/size_of(u64))
-		data2 := slice_ptr(data_ as ^u8, len)
+		data := slice_ptr(cast(^u64)data_, len/size_of(u64));
+		data2 := slice_ptr(cast(^u8)data_, len);
 
-		for i := 0; i < data.count; i++ {
-			k := data[i]
+		for i in 0 ..< data.count {
+			k := data[i];
 
-			k *= m
-			k ~= k>>r
-			k *= m
+			k *= m;
+			k ~= k>>r;
+			k *= m;
 
-			h ~= k
-			h *= m
+			h ~= k;
+			h *= m;
 		}
 
 		match len & 7 {
-		case 7: h ~= data2[6] as u64 << 48; fallthrough
-		case 6: h ~= data2[5] as u64 << 40; fallthrough
-		case 5: h ~= data2[4] as u64 << 32; fallthrough
-		case 4: h ~= data2[3] as u64 << 24; fallthrough
-		case 3: h ~= data2[2] as u64 << 16; fallthrough
-		case 2: h ~= data2[1] as u64 << 8;  fallthrough
+		case 7: h ~= cast(u64)data2[6] << 48; fallthrough;
+		case 6: h ~= cast(u64)data2[5] << 40; fallthrough;
+		case 5: h ~= cast(u64)data2[4] << 32; fallthrough;
+		case 4: h ~= cast(u64)data2[3] << 24; fallthrough;
+		case 3: h ~= cast(u64)data2[2] << 16; fallthrough;
+		case 2: h ~= cast(u64)data2[1] << 8;  fallthrough;
 		case 1:
-			h ~= data2[0] as u64
-			h *= m
+			h ~= cast(u64)data2[0];
+			h *= m;
 		}
 
-		h ~= h>>r
-		h *= m
-		h ~= h>>r
+		h ~= h>>r;
+		h *= m;
+		h ~= h>>r;
 
-		return h
+		return h;
 	} else {
-		m :: 0x5bd1e995
-		r :: 24
+		m :: 0x5bd1e995;
+		r :: 24;
 
-		h1: u32 = SEED as u32 ~ len as u32
-		h2: u32 = SEED >> 32
+		h1: u32 = cast(u32)SEED ~ cast(u32)len;
+		h2: u32 = SEED >> 32;
 
-		data := slice_ptr(data_ as ^u32, len/size_of(u32))
+		data := slice_ptr(cast(^u32)data_, len/size_of(u32));
 
-		i := 0
+		i := 0;
 		for len >= 8 {
-			k1, k2: u32
-			k1 = data[i]; i++
-			k1 *= m
-			k1 ~= k1>>r
-			k1 *= m
-			h1 *= m
-			h1 ~= k1
-			len -= 4
+			k1, k2: u32;
+			k1 = data[i]; i += 1;
+			k1 *= m;
+			k1 ~= k1>>r;
+			k1 *= m;
+			h1 *= m;
+			h1 ~= k1;
+			len -= 4;
 
-			k2 = data[i]; i++
-			k2 *= m
-			k2 ~= k2>>r
-			k2 *= m
-			h2 *= m
-			h2 ~= k2
-			len -= 4
+			k2 = data[i]; i += 1;
+			k2 *= m;
+			k2 ~= k2>>r;
+			k2 *= m;
+			h2 *= m;
+			h2 ~= k2;
+			len -= 4;
 		}
 
-		if (len >= 4) {
-			k1: u32
-			k1 = data[i]; i++
-			k1 *= m
-			k1 ~= k1>>r
-			k1 *= m
-			h1 *= m
-			h1 ~= k1
-			len -= 4
+		if len >= 4 {
+			k1: u32;
+			k1 = data[i]; i += 1;
+			k1 *= m;
+			k1 ~= k1>>r;
+			k1 *= m;
+			h1 *= m;
+			h1 ~= k1;
+			len -= 4;
 		}
 
-		data8 := slice_ptr((data.data+i) as ^u8, 3) // NOTE(bill): This is unsafe
+		data8 := slice_ptr(cast(^u8)(data.data+i), 3); // NOTE(bill): This is unsafe
 
 		match len {
-		case 3: h2 ~= data8[2] as u32 << 16; fallthrough
-		case 2: h2 ~= data8[1] as u32 << 8;  fallthrough
+		case 3: h2 ~= cast(u32)data8[2] << 16; fallthrough;
+		case 2: h2 ~= cast(u32)data8[1] << 8;  fallthrough;
 		case 1:
-			h2 ~= data8[0] as u32
-			h2 *= m
+			h2 ~= cast(u32)data8[0];
+			h2 *= m;
 		}
 
-		h1 ~= h2>>18
-		h1 *= m
-		h2 ~= h1>>22
-		h2 *= m
-		h1 ~= h2>>17
-		h1 *= m
-		h2 ~= h1>>19
-		h2 *= m
+		h1 ~= h2>>18;
+		h1 *= m;
+		h2 ~= h1>>22;
+		h2 *= m;
+		h1 ~= h2>>17;
+		h1 *= m;
+		h2 ~= h1>>19;
+		h2 *= m;
 
-		h := (h1 as u64)<<32 | h2 as u64
-		return h
+		h := cast(u64)(h1)<<32 | cast(u64)(h2);
+		return h;
 	}
 }
 
@@ -229,7 +229,7 @@ __CRC32_TABLE := [256]u32{
 	0xbad03605, 0xcdd70693, 0x54de5729, 0x23d967bf,
 	0xb3667a2e, 0xc4614ab8, 0x5d681b02, 0x2a6f2b94,
 	0xb40bbe37, 0xc30c8ea1, 0x5a05df1b, 0x2d02ef8d,
-}
+};
 __CRC64_TABLE := [256]u64{
 	0x0000000000000000, 0x42f0e1eba9ea3693, 0x85e1c3d753d46d26, 0xc711223cfa3e5bb5,
 	0x493366450e42ecdf, 0x0bc387aea7a8da4c, 0xccd2a5925d9681f9, 0x8e224479f47cb76a,
@@ -295,4 +295,4 @@ __CRC64_TABLE := [256]u64{
 	0xcf8b0890283e370c, 0x8d7be97b81d4019f, 0x4a6acb477bea5a2a, 0x089a2aacd2006cb9,
 	0x14dea25f3af9026d, 0x562e43b4931334fe, 0x913f6188692d6f4b, 0xd3cf8063c0c759d8,
 	0x5dedc41a34bbeeb2, 0x1f1d25f19d51d821, 0xd80c07cd676f8394, 0x9afce626ce85b507,
-}
+};

core/math.odin

@@ -1,141 +1,146 @@
-TAU          :: 6.28318530717958647692528676655900576
-PI           :: 3.14159265358979323846264338327950288
-ONE_OVER_TAU :: 0.636619772367581343075535053490057448
-ONE_OVER_PI  :: 0.159154943091895335768883763372514362
+TAU          :: 6.28318530717958647692528676655900576;
+PI           :: 3.14159265358979323846264338327950288;
+ONE_OVER_TAU :: 0.636619772367581343075535053490057448;
+ONE_OVER_PI  :: 0.159154943091895335768883763372514362;
 
-E            :: 2.71828182845904523536
-SQRT_TWO     :: 1.41421356237309504880168872420969808
-SQRT_THREE   :: 1.73205080756887729352744634150587236
-SQRT_FIVE    :: 2.23606797749978969640917366873127623
+E            :: 2.71828182845904523536;
+SQRT_TWO     :: 1.41421356237309504880168872420969808;
+SQRT_THREE   :: 1.73205080756887729352744634150587236;
+SQRT_FIVE    :: 2.23606797749978969640917366873127623;
 
-LOG_TWO      :: 0.693147180559945309417232121458176568
-LOG_TEN      :: 2.30258509299404568401799145468436421
+LOG_TWO      :: 0.693147180559945309417232121458176568;
+LOG_TEN      :: 2.30258509299404568401799145468436421;
 
-EPSILON      :: 1.19209290e-7
+EPSILON      :: 1.19209290e-7;
 
-τ :: TAU
-π :: PI
+τ :: TAU;
+π :: PI;
+
+Vec2 :: [vector 2]f32;
+Vec3 :: [vector 3]f32;
+Vec4 :: [vector 4]f32;
+
+Mat2 :: [2]Vec2;
+Mat3 :: [3]Vec3;
+Mat4 :: [4]Vec4;
+
+sqrt :: proc(x: f32) -> f32 #foreign __llvm_core "llvm.sqrt.f32";
+sqrt :: proc(x: f64) -> f64 #foreign __llvm_core "llvm.sqrt.f64";
+
+sin :: proc(x: f32) -> f32 #foreign __llvm_core "llvm.sin.f32";
+sin :: proc(x: f64) -> f64 #foreign __llvm_core "llvm.sin.f64";
+
+cos :: proc(x: f32) -> f32 #foreign __llvm_core "llvm.cos.f32";
+cos :: proc(x: f64) -> f64 #foreign __llvm_core "llvm.cos.f64";
+
+tan :: proc(x: f32) -> f32 #inline { return sin(x)/cos(x); }
+tan :: proc(x: f64) -> f64 #inline { return sin(x)/cos(x); }
+
+lerp :: proc(a, b, t: f32) -> f32 { return a*(1-t) + b*t; }
+lerp :: proc(a, b, t: f64) -> f64 { return a*(1-t) + b*t; }
+
+sign :: proc(x: f32) -> f32 { if x >= 0 { return +1; } return -1; }
+sign :: proc(x: f64) -> f64 { if x >= 0 { return +1; } return -1; }
+
+bit_reverse :: proc(b: u16) -> u16 #foreign __llvm_core "llvm.bitreverse.i16";
+bit_reverse :: proc(b: u32) -> u32 #foreign __llvm_core "llvm.bitreverse.i32";
+bit_reverse :: proc(b: u64) -> u64 #foreign __llvm_core "llvm.bitreverse.i64";
+
+byte_swap :: proc(b: u16) -> u16 #foreign __llvm_core "llvm.bswap.i16";
+byte_swap :: proc(b: u32) -> u32 #foreign __llvm_core "llvm.bswap.i32";
+byte_swap :: proc(b: u64) -> u64 #foreign __llvm_core "llvm.bswap.i64";
+
+fmuladd :: proc(a, b, c: f32) -> f32 #foreign __llvm_core "llvm.fmuladd.f32";
+fmuladd :: proc(a, b, c: f64) -> f64 #foreign __llvm_core "llvm.fmuladd.f64";
 
 
-Vec2 :: type {2}f32
-Vec3 :: type {3}f32
-Vec4 :: type {4}f32
-
-Mat2 :: type [2]Vec2
-Mat3 :: type [3]Vec3
-Mat4 :: type [4]Vec4
-
-
-sqrt32  :: proc(x: f32) -> f32 #foreign "llvm.sqrt.f32"
-sqrt64  :: proc(x: f64) -> f64 #foreign "llvm.sqrt.f64"
-
-sin32   :: proc(x: f32) -> f32 #foreign "llvm.sin.f32"
-sin64   :: proc(x: f64) -> f64 #foreign "llvm.sin.f64"
-
-cos32   :: proc(x: f32) -> f32 #foreign "llvm.cos.f32"
-cos64   :: proc(x: f64) -> f64 #foreign "llvm.cos.f64"
-
-tan32   :: proc(x: f32) -> f32 #inline { return sin32(x)/cos32(x) }
-tan64   :: proc(x: f64) -> f64 #inline { return sin64(x)/cos64(x) }
-
-lerp32  :: proc(a, b, t: f32) -> f32 { return a*(1-t) + b*t }
-lerp64  :: proc(a, b, t: f64) -> f64 { return a*(1-t) + b*t }
-
-clamp32 :: proc(x, lower, upper: f32) -> f32 { return min(max(x, lower), upper) }
-clamp64 :: proc(x, lower, upper: f64) -> f64 { return min(max(x, lower), upper) }
-
-sign32  :: proc(x: f32) -> f32 { if x >= 0 { return +1 } return -1 }
-sign64  :: proc(x: f64) -> f64 { if x >= 0 { return +1 } return -1 }
-
-
-
-copy_sign32 :: proc(x, y: f32) -> f32 {
-	ix := x transmute u32
-	iy := y transmute u32
-	ix &= 0x7fffffff
-	ix |= iy & 0x80000000
-	return ix transmute f32
+copy_sign :: proc(x, y: f32) -> f32 {
+	ix := transmute(u32)x;
+	iy := transmute(u32)y;
+	ix &= 0x7fffffff;
+	ix |= iy & 0x80000000;
+	return transmute(f32)ix;
 }
-round32 :: proc(x: f32) -> f32 {
+round :: proc(x: f32) -> f32 {
 	if x >= 0 {
-		return floor32(x + 0.5)
+		return floor(x + 0.5);
 	}
-	return ceil32(x - 0.5)
+	return ceil(x - 0.5);
 }
-floor32 :: proc(x: f32) -> f32 {
+floor :: proc(x: f32) -> f32 {
 	if x >= 0 {
-		return x as int as f32
+		return cast(f32)cast(int)x;
 	}
-	return (x-0.5) as int as f32
+	return cast(f32)cast(int)(x-0.5);
 }
-ceil32 :: proc(x: f32) -> f32 {
+ceil :: proc(x: f32) -> f32 {
 	if x < 0 {
-		return x as int as f32
+		return cast(f32)cast(int)x;
 	}
-	return ((x as int)+1) as f32
+	return cast(f32)cast(int)(x+1);
 }
 
 remainder32 :: proc(x, y: f32) -> f32 {
-	return x - round32(x/y) * y
+	return x - round(x/y) * y;
 }
 
 fmod32 :: proc(x, y: f32) -> f32 {
-	y = abs(y)
-	result := remainder32(abs(x), y)
-	if sign32(result) < 0 {
-		result += y
+	y = abs(y);
+	result := remainder32(abs(x), y);
+	if sign(result) < 0 {
+		result += y;
 	}
-	return copy_sign32(result, x)
+	return copy_sign(result, x);
 }
 
 
-to_radians :: proc(degrees: f32) -> f32 { return degrees * TAU / 360 }
-to_degrees :: proc(radians: f32) -> f32 { return radians * 360 / TAU }
+to_radians :: proc(degrees: f32) -> f32 { return degrees * TAU / 360; }
+to_degrees :: proc(radians: f32) -> f32 { return radians * 360 / TAU; }
 
 
 
 
-dot2 :: proc(a, b: Vec2) -> f32 { c := a*b; return c.x + c.y }
-dot3 :: proc(a, b: Vec3) -> f32 { c := a*b; return c.x + c.y + c.z }
-dot4 :: proc(a, b: Vec4) -> f32 { c := a*b; return c.x + c.y + c.z + c.w }
+dot :: proc(a, b: Vec2) -> f32 { c := a*b; return c.x + c.y; }
+dot :: proc(a, b: Vec3) -> f32 { c := a*b; return c.x + c.y + c.z; }
+dot :: proc(a, b: Vec4) -> f32 { c := a*b; return c.x + c.y + c.z + c.w; }
 
-cross3 :: proc(x, y: Vec3) -> Vec3 {
-	a := swizzle(x, 1, 2, 0) * swizzle(y, 2, 0, 1)
-	b := swizzle(x, 2, 0, 1) * swizzle(y, 1, 2, 0)
-	return a - b
+cross :: proc(x, y: Vec3) -> Vec3 {
+	a := swizzle(x, 1, 2, 0) * swizzle(y, 2, 0, 1);
+	b := swizzle(x, 2, 0, 1) * swizzle(y, 1, 2, 0);
+	return a - b;
 }
 
 
-vec2_mag :: proc(v: Vec2) -> f32 { return sqrt32(dot2(v, v)) }
-vec3_mag :: proc(v: Vec3) -> f32 { return sqrt32(dot3(v, v)) }
-vec4_mag :: proc(v: Vec4) -> f32 { return sqrt32(dot4(v, v)) }
+mag :: proc(v: Vec2) -> f32 { return sqrt(dot(v, v)); }
+mag :: proc(v: Vec3) -> f32 { return sqrt(dot(v, v)); }
+mag :: proc(v: Vec4) -> f32 { return sqrt(dot(v, v)); }
 
-vec2_norm :: proc(v: Vec2) -> Vec2 { return v / Vec2{vec2_mag(v)} }
-vec3_norm :: proc(v: Vec3) -> Vec3 { return v / Vec3{vec3_mag(v)} }
-vec4_norm :: proc(v: Vec4) -> Vec4 { return v / Vec4{vec4_mag(v)} }
+norm :: proc(v: Vec2) -> Vec2 { return v / Vec2{mag(v)}; }
+norm :: proc(v: Vec3) -> Vec3 { return v / Vec3{mag(v)}; }
+norm :: proc(v: Vec4) -> Vec4 { return v / Vec4{mag(v)}; }
 
-vec2_norm0 :: proc(v: Vec2) -> Vec2 {
-	m := vec2_mag(v)
+norm0 :: proc(v: Vec2) -> Vec2 {
+	m := mag(v);
 	if m == 0 {
-		return Vec2{0}
+		return Vec2{0};
 	}
-	return v / Vec2{m}
+	return v / Vec2{m};
 }
 
-vec3_norm0 :: proc(v: Vec3) -> Vec3 {
-	m := vec3_mag(v)
+norm0 :: proc(v: Vec3) -> Vec3 {
+	m := mag(v);
 	if m == 0 {
-		return Vec3{0}
+		return Vec3{0};
 	}
-	return v / Vec3{m}
+	return v / Vec3{m};
 }
 
-vec4_norm0 :: proc(v: Vec4) -> Vec4 {
-	m := vec4_mag(v)
+norm0 :: proc(v: Vec4) -> Vec4 {
+	m := mag(v);
 	if m == 0 {
-		return Vec4{0}
+		return Vec4{0};
 	}
-	return v / Vec4{m}
+	return v / Vec4{m};
 }
 
 
@@ -146,228 +151,226 @@ mat4_identity :: proc() -> Mat4 {
 		{0, 1, 0, 0},
 		{0, 0, 1, 0},
 		{0, 0, 0, 1},
-	}
+	};
 }
 
 mat4_transpose :: proc(m: Mat4) -> Mat4 {
-	for j := 0; j < 4; j++ {
-		for i := 0; i < 4; i++ {
-			m[i][j], m[j][i] = m[j][i], m[i][j]
+	for j in 0..<4 {
+		for i in 0..<4 {
+			m[i][j], m[j][i] = m[j][i], m[i][j];
 		}
 	}
-	return m
+	return m;
 }
 
-mat4_mul :: proc(a, b: Mat4) -> Mat4 {
-	c: Mat4
-	for j := 0; j < 4; j++ {
-		for i := 0; i < 4; i++ {
-			c[j][i] = a[0][i]*b[j][0]
-			        + a[1][i]*b[j][1]
-			        + a[2][i]*b[j][2]
-			        + a[3][i]*b[j][3]
+mul :: proc(a, b: Mat4) -> Mat4 {
+	c: Mat4;
+	for j in 0..<4 {
+		for i in 0..<4 {
+			c[j][i] = a[0][i]*b[j][0] +
+			          a[1][i]*b[j][1] +
+			          a[2][i]*b[j][2] +
+			          a[3][i]*b[j][3];
 		}
 	}
-	return c
+	return c;
 }
 
-mat4_mul_vec4 :: proc(m: Mat4, v: Vec4) -> Vec4 {
+mul :: proc(m: Mat4, v: Vec4) -> Vec4 {
 	return Vec4{
 		m[0][0]*v.x + m[1][0]*v.y + m[2][0]*v.z + m[3][0]*v.w,
 		m[0][1]*v.x + m[1][1]*v.y + m[2][1]*v.z + m[3][1]*v.w,
 		m[0][2]*v.x + m[1][2]*v.y + m[2][2]*v.z + m[3][2]*v.w,
 		m[0][3]*v.x + m[1][3]*v.y + m[2][3]*v.z + m[3][3]*v.w,
-	}
+	};
 }
 
-mat4_inverse :: proc(m: Mat4) -> Mat4 {
-	o: Mat4
+inverse :: proc(m: Mat4) -> Mat4 {
+	o: Mat4;
 
-	sf00 := m[2][2] * m[3][3] - m[3][2] * m[2][3]
-	sf01 := m[2][1] * m[3][3] - m[3][1] * m[2][3]
-	sf02 := m[2][1] * m[3][2] - m[3][1] * m[2][2]
-	sf03 := m[2][0] * m[3][3] - m[3][0] * m[2][3]
-	sf04 := m[2][0] * m[3][2] - m[3][0] * m[2][2]
-	sf05 := m[2][0] * m[3][1] - m[3][0] * m[2][1]
-	sf06 := m[1][2] * m[3][3] - m[3][2] * m[1][3]
-	sf07 := m[1][1] * m[3][3] - m[3][1] * m[1][3]
-	sf08 := m[1][1] * m[3][2] - m[3][1] * m[1][2]
-	sf09 := m[1][0] * m[3][3] - m[3][0] * m[1][3]
-	sf10 := m[1][0] * m[3][2] - m[3][0] * m[1][2]
-	sf11 := m[1][1] * m[3][3] - m[3][1] * m[1][3]
-	sf12 := m[1][0] * m[3][1] - m[3][0] * m[1][1]
-	sf13 := m[1][2] * m[2][3] - m[2][2] * m[1][3]
-	sf14 := m[1][1] * m[2][3] - m[2][1] * m[1][3]
-	sf15 := m[1][1] * m[2][2] - m[2][1] * m[1][2]
-	sf16 := m[1][0] * m[2][3] - m[2][0] * m[1][3]
-	sf17 := m[1][0] * m[2][2] - m[2][0] * m[1][2]
-	sf18 := m[1][0] * m[2][1] - m[2][0] * m[1][1]
+	sf00 := m[2][2] * m[3][3] - m[3][2] * m[2][3];
+	sf01 := m[2][1] * m[3][3] - m[3][1] * m[2][3];
+	sf02 := m[2][1] * m[3][2] - m[3][1] * m[2][2];
+	sf03 := m[2][0] * m[3][3] - m[3][0] * m[2][3];
+	sf04 := m[2][0] * m[3][2] - m[3][0] * m[2][2];
+	sf05 := m[2][0] * m[3][1] - m[3][0] * m[2][1];
+	sf06 := m[1][2] * m[3][3] - m[3][2] * m[1][3];
+	sf07 := m[1][1] * m[3][3] - m[3][1] * m[1][3];
+	sf08 := m[1][1] * m[3][2] - m[3][1] * m[1][2];
+	sf09 := m[1][0] * m[3][3] - m[3][0] * m[1][3];
+	sf10 := m[1][0] * m[3][2] - m[3][0] * m[1][2];
+	sf11 := m[1][1] * m[3][3] - m[3][1] * m[1][3];
+	sf12 := m[1][0] * m[3][1] - m[3][0] * m[1][1];
+	sf13 := m[1][2] * m[2][3] - m[2][2] * m[1][3];
+	sf14 := m[1][1] * m[2][3] - m[2][1] * m[1][3];
+	sf15 := m[1][1] * m[2][2] - m[2][1] * m[1][2];
+	sf16 := m[1][0] * m[2][3] - m[2][0] * m[1][3];
+	sf17 := m[1][0] * m[2][2] - m[2][0] * m[1][2];
+	sf18 := m[1][0] * m[2][1] - m[2][0] * m[1][1];
 
-	o[0][0] = +(m[1][1] * sf00 - m[1][2] * sf01 + m[1][3] * sf02)
-	o[0][1] = -(m[1][0] * sf00 - m[1][2] * sf03 + m[1][3] * sf04)
-	o[0][2] = +(m[1][0] * sf01 - m[1][1] * sf03 + m[1][3] * sf05)
-	o[0][3] = -(m[1][0] * sf02 - m[1][1] * sf04 + m[1][2] * sf05)
+	o[0][0] = +(m[1][1] * sf00 - m[1][2] * sf01 + m[1][3] * sf02);
+	o[0][1] = -(m[1][0] * sf00 - m[1][2] * sf03 + m[1][3] * sf04);
+	o[0][2] = +(m[1][0] * sf01 - m[1][1] * sf03 + m[1][3] * sf05);
+	o[0][3] = -(m[1][0] * sf02 - m[1][1] * sf04 + m[1][2] * sf05);
 
-	o[1][0] = -(m[0][1] * sf00 - m[0][2] * sf01 + m[0][3] * sf02)
-	o[1][1] = +(m[0][0] * sf00 - m[0][2] * sf03 + m[0][3] * sf04)
-	o[1][2] = -(m[0][0] * sf01 - m[0][1] * sf03 + m[0][3] * sf05)
-	o[1][3] = +(m[0][0] * sf02 - m[0][1] * sf04 + m[0][2] * sf05)
+	o[1][0] = -(m[0][1] * sf00 - m[0][2] * sf01 + m[0][3] * sf02);
+	o[1][1] = +(m[0][0] * sf00 - m[0][2] * sf03 + m[0][3] * sf04);
+	o[1][2] = -(m[0][0] * sf01 - m[0][1] * sf03 + m[0][3] * sf05);
+	o[1][3] = +(m[0][0] * sf02 - m[0][1] * sf04 + m[0][2] * sf05);
 
-	o[2][0] = +(m[0][1] * sf06 - m[0][2] * sf07 + m[0][3] * sf08)
-	o[2][1] = -(m[0][0] * sf06 - m[0][2] * sf09 + m[0][3] * sf10)
-	o[2][2] = +(m[0][0] * sf11 - m[0][1] * sf09 + m[0][3] * sf12)
-	o[2][3] = -(m[0][0] * sf08 - m[0][1] * sf10 + m[0][2] * sf12)
+	o[2][0] = +(m[0][1] * sf06 - m[0][2] * sf07 + m[0][3] * sf08);
+	o[2][1] = -(m[0][0] * sf06 - m[0][2] * sf09 + m[0][3] * sf10);
+	o[2][2] = +(m[0][0] * sf11 - m[0][1] * sf09 + m[0][3] * sf12);
+	o[2][3] = -(m[0][0] * sf08 - m[0][1] * sf10 + m[0][2] * sf12);
 
-	o[3][0] = -(m[0][1] * sf13 - m[0][2] * sf14 + m[0][3] * sf15)
-	o[3][1] = +(m[0][0] * sf13 - m[0][2] * sf16 + m[0][3] * sf17)
-	o[3][2] = -(m[0][0] * sf14 - m[0][1] * sf16 + m[0][3] * sf18)
-	o[3][3] = +(m[0][0] * sf15 - m[0][1] * sf17 + m[0][2] * sf18)
+	o[3][0] = -(m[0][1] * sf13 - m[0][2] * sf14 + m[0][3] * sf15);
+	o[3][1] = +(m[0][0] * sf13 - m[0][2] * sf16 + m[0][3] * sf17);
+	o[3][2] = -(m[0][0] * sf14 - m[0][1] * sf16 + m[0][3] * sf18);
+	o[3][3] = +(m[0][0] * sf15 - m[0][1] * sf17 + m[0][2] * sf18);
 
 	ood := 1.0 / (m[0][0] * o[0][0] +
 	              m[0][1] * o[0][1] +
 	              m[0][2] * o[0][2] +
-	              m[0][3] * o[0][3])
+	              m[0][3] * o[0][3]);
 
-	o[0][0] *= ood
-	o[0][1] *= ood
-	o[0][2] *= ood
-	o[0][3] *= ood
-	o[1][0] *= ood
-	o[1][1] *= ood
-	o[1][2] *= ood
-	o[1][3] *= ood
-	o[2][0] *= ood
-	o[2][1] *= ood
-	o[2][2] *= ood
-	o[2][3] *= ood
-	o[3][0] *= ood
-	o[3][1] *= ood
-	o[3][2] *= ood
-	o[3][3] *= ood
+	o[0][0] *= ood;
+	o[0][1] *= ood;
+	o[0][2] *= ood;
+	o[0][3] *= ood;
+	o[1][0] *= ood;
+	o[1][1] *= ood;
+	o[1][2] *= ood;
+	o[1][3] *= ood;
+	o[2][0] *= ood;
+	o[2][1] *= ood;
+	o[2][2] *= ood;
+	o[2][3] *= ood;
+	o[3][0] *= ood;
+	o[3][1] *= ood;
+	o[3][2] *= ood;
+	o[3][3] *= ood;
 
-	return o
+	return o;
 }
 
 
 mat4_translate :: proc(v: Vec3) -> Mat4 {
-	m := mat4_identity()
-	m[3][0] = v.x
-	m[3][1] = v.y
-	m[3][2] = v.z
-	m[3][3] = 1
-	return m
+	m := mat4_identity();
+	m[3][0] = v.x;
+	m[3][1] = v.y;
+	m[3][2] = v.z;
+	m[3][3] = 1;
+	return m;
 }
 
 mat4_rotate :: proc(v: Vec3, angle_radians: f32) -> Mat4 {
-	c := cos32(angle_radians)
-	s := sin32(angle_radians)
+	c := cos(angle_radians);
+	s := sin(angle_radians);
 
-	a := vec3_norm(v)
-	t := a * Vec3{1-c}
+	a := norm(v);
+	t := a * Vec3{1-c};
 
-	rot := mat4_identity()
+	rot := mat4_identity();
 
-	rot[0][0] = c + t.x*a.x
-	rot[0][1] = 0 + t.x*a.y + s*a.z
-	rot[0][2] = 0 + t.x*a.z - s*a.y
-	rot[0][3] = 0
+	rot[0][0] = c + t.x*a.x;
+	rot[0][1] = 0 + t.x*a.y + s*a.z;
+	rot[0][2] = 0 + t.x*a.z - s*a.y;
+	rot[0][3] = 0;
 
-	rot[1][0] = 0 + t.y*a.x - s*a.z
-	rot[1][1] = c + t.y*a.y
-	rot[1][2] = 0 + t.y*a.z + s*a.x
-	rot[1][3] = 0
+	rot[1][0] = 0 + t.y*a.x - s*a.z;
+	rot[1][1] = c + t.y*a.y;
+	rot[1][2] = 0 + t.y*a.z + s*a.x;
+	rot[1][3] = 0;
 
-	rot[2][0] = 0 + t.z*a.x + s*a.y
-	rot[2][1] = 0 + t.z*a.y - s*a.x
-	rot[2][2] = c + t.z*a.z
-	rot[2][3] = 0
+	rot[2][0] = 0 + t.z*a.x + s*a.y;
+	rot[2][1] = 0 + t.z*a.y - s*a.x;
+	rot[2][2] = c + t.z*a.z;
+	rot[2][3] = 0;
 
-	return rot
+	return rot;
 }
 
-mat4_scale :: proc(m: Mat4, v: Vec3) -> Mat4 {
-	m[0][0] = v.x
-	m[1][1] = v.y
-	m[2][2] = v.z
-	return m
+scale :: proc(m: Mat4, v: Vec3) -> Mat4 {
+	m[0][0] *= v.x;
+	m[1][1] *= v.y;
+	m[2][2] *= v.z;
+	return m;
 }
 
-mat4_scalef :: proc(m: Mat4, s: f32) -> Mat4 {
-	m[0][0] = s
-	m[1][1] = s
-	m[2][2] = s
-	return m
+scale :: proc(m: Mat4, s: f32) -> Mat4 {
+	m[0][0] *= s;
+	m[1][1] *= s;
+	m[2][2] *= s;
+	return m;
 }
 
 
-mat4_look_at :: proc(eye, centre, up: Vec3) -> Mat4 {
-	f := vec3_norm(centre - eye)
-	s := vec3_norm(cross3(f, up))
-	u := cross3(s, f)
+look_at :: proc(eye, centre, up: Vec3) -> Mat4 {
+	f := norm(centre - eye);
+	s := norm(cross(f, up));
+	u := cross(s, f);
 
-	m: Mat4
+	m: Mat4;
 
-	m[0] = Vec4{+s.x, +s.y, +s.z, 0}
-	m[1] = Vec4{+u.x, +u.y, +u.z, 0}
-	m[2] = Vec4{-f.x, -f.y, -f.z, 0}
-	m[3] = Vec4{dot3(s, eye), dot3(u, eye), dot3(f, eye), 1}
+	m[0] = Vec4{+s.x, +s.y, +s.z, 0};
+	m[1] = Vec4{+u.x, +u.y, +u.z, 0};
+	m[2] = Vec4{-f.x, -f.y, -f.z, 0};
+	m[3] = Vec4{dot(s, eye), dot(u, eye), dot(f, eye), 1};
 
-	return m
+	return m;
 }
-mat4_perspective :: proc(fovy, aspect, near, far: f32) -> Mat4 {
-	m: Mat4
-	tan_half_fovy := tan32(0.5 * fovy)
-	m[0][0] = 1.0 / (aspect*tan_half_fovy)
-	m[1][1] = 1.0 / (tan_half_fovy)
-	m[2][2] = -(far + near) / (far - near)
-	m[2][3] = -1.0
-	m[3][2] = -2.0*far*near / (far - near)
-	return m
+perspective :: proc(fovy, aspect, near, far: f32) -> Mat4 {
+	m: Mat4;
+	tan_half_fovy := tan(0.5 * fovy);
+	m[0][0] = 1.0 / (aspect*tan_half_fovy);
+	m[1][1] = 1.0 / (tan_half_fovy);
+	m[2][2] = -(far + near) / (far - near);
+	m[2][3] = -1.0;
+	m[3][2] = -2.0*far*near / (far - near);
+	return m;
 }
 
 
-mat4_ortho3d :: proc(left, right, bottom, top, near, far: f32) -> Mat4 {
-	m := mat4_identity()
-
-	m[0][0] = +2.0 / (right - left)
-	m[1][1] = +2.0 / (top - bottom)
-	m[2][2] = -2.0 / (far - near)
-	m[3][0] = -(right + left)   / (right - left)
-	m[3][1] = -(top   + bottom) / (top   - bottom)
-	m[3][2] = -(far + near) / (far - near)
-
-	return m
+ortho3d :: proc(left, right, bottom, top, near, far: f32) -> Mat4 {
+	m := mat4_identity();
+	m[0][0] = +2.0 / (right - left);
+	m[1][1] = +2.0 / (top - bottom);
+	m[2][2] = -2.0 / (far - near);
+	m[3][0] = -(right + left)   / (right - left);
+	m[3][1] = -(top   + bottom) / (top   - bottom);
+	m[3][2] = -(far + near) / (far - near);
+	return m;
 }
 
 
 
 
 
-F32_DIG        :: 6
-F32_EPSILON    :: 1.192092896e-07
-F32_GUARD      :: 0
-F32_MANT_DIG   :: 24
-F32_MAX        :: 3.402823466e+38
-F32_MAX_10_EXP :: 38
-F32_MAX_EXP    :: 128
-F32_MIN        :: 1.175494351e-38
-F32_MIN_10_EXP :: -37
-F32_MIN_EXP    :: -125
-F32_NORMALIZE  :: 0
-F32_RADIX      :: 2
-F32_ROUNDS     :: 1
+F32_DIG        :: 6;
+F32_EPSILON    :: 1.192092896e-07;
+F32_GUARD      :: 0;
+F32_MANT_DIG   :: 24;
+F32_MAX        :: 3.402823466e+38;
+F32_MAX_10_EXP :: 38;
+F32_MAX_EXP    :: 128;
+F32_MIN        :: 1.175494351e-38;
+F32_MIN_10_EXP :: -37;
+F32_MIN_EXP    :: -125;
+F32_NORMALIZE  :: 0;
+F32_RADIX      :: 2;
+F32_ROUNDS     :: 1;
 
-F64_DIG        :: 15                      // # of decimal digits of precision
-F64_EPSILON    :: 2.2204460492503131e-016 // smallest such that 1.0+F64_EPSILON != 1.0
-F64_MANT_DIG   :: 53                      // # of bits in mantissa
-F64_MAX        :: 1.7976931348623158e+308 // max value
-F64_MAX_10_EXP :: 308                     // max decimal exponent
-F64_MAX_EXP    :: 1024                    // max binary exponent
-F64_MIN        :: 2.2250738585072014e-308 // min positive value
-F64_MIN_10_EXP :: -307                    // min decimal exponent
-F64_MIN_EXP    :: -1021                   // min binary exponent
-F64_RADIX      :: 2                       // exponent radix
-F64_ROUNDS     :: 1                       // addition rounding: near
+F64_DIG        :: 15;                       // # of decimal digits of precision
+F64_EPSILON    :: 2.2204460492503131e-016;  // smallest such that 1.0+F64_EPSILON != 1.0
+F64_MANT_DIG   :: 53;                       // # of bits in mantissa
+F64_MAX        :: 1.7976931348623158e+308;  // max value
+F64_MAX_10_EXP :: 308;                      // max decimal exponent
+F64_MAX_EXP    :: 1024;                     // max binary exponent
+F64_MIN        :: 2.2250738585072014e-308;  // min positive value
+F64_MIN_10_EXP :: -307;                     // min decimal exponent
+F64_MIN_EXP    :: -1021;                    // min binary exponent
+F64_RADIX      :: 2;                        // exponent radix
+F64_ROUNDS     :: 1;                        // addition rounding: near
 
 
 

core/mem.odin

@@ -1,111 +1,90 @@
-#import "fmt.odin"
-#import "os.odin"
+#import "fmt.odin";
+#import "os.odin";
 
 set :: proc(data: rawptr, value: i32, len: int) -> rawptr #link_name "__mem_set" {
-	llvm_memset_64bit :: proc(dst: rawptr, val: byte, len: int, align: i32, is_volatile: bool) #foreign "llvm.memset.p0i8.i64"
-	llvm_memset_64bit(data, value as byte, len, 1, false)
-	return data
+	llvm_memset_64bit :: proc(dst: rawptr, val: byte, len: int, align: i32, is_volatile: bool) #foreign __llvm_core "llvm.memset.p0i8.i64";
+	llvm_memset_64bit(data, cast(byte)value, len, 1, false);
+	return data;
 }
 
-zero :: proc(data: rawptr, len: int) -> rawptr {
-	return set(data, 0, len)
+zero :: proc(data: rawptr, len: int) -> rawptr #link_name "__mem_zero" {
+	return set(data, 0, len);
 }
 
 copy :: proc(dst, src: rawptr, len: int) -> rawptr #link_name "__mem_copy" {
 	// NOTE(bill): This _must_ implemented like C's memmove
-	llvm_memmove_64bit :: proc(dst, src: rawptr, len: int, align: i32, is_volatile: bool) #foreign "llvm.memmove.p0i8.p0i8.i64"
-	llvm_memmove_64bit(dst, src, len, 1, false)
-	return dst
+	llvm_memmove_64bit :: proc(dst, src: rawptr, len: int, align: i32, is_volatile: bool) #foreign __llvm_core "llvm.memmove.p0i8.p0i8.i64";
+	llvm_memmove_64bit(dst, src, len, 1, false);
+	return dst;
 }
 
 copy_non_overlapping :: proc(dst, src: rawptr, len: int) -> rawptr #link_name "__mem_copy_non_overlapping" {
 	// NOTE(bill): This _must_ implemented like C's memcpy
-	llvm_memcpy_64bit :: proc(dst, src: rawptr, len: int, align: i32, is_volatile: bool) #foreign "llvm.memcpy.p0i8.p0i8.i64"
-	llvm_memcpy_64bit(dst, src, len, 1, false)
-	return dst
+	llvm_memcpy_64bit :: proc(dst, src: rawptr, len: int, align: i32, is_volatile: bool) #foreign __llvm_core "llvm.memcpy.p0i8.p0i8.i64";
+	llvm_memcpy_64bit(dst, src, len, 1, false);
+	return dst;
 }
 
-
 compare :: proc(dst, src: rawptr, n: int) -> int #link_name "__mem_compare" {
-	// Translation of http://mgronhol.github.io/fast-strcmp/
-	a := slice_ptr(dst as ^byte, n)
-	b := slice_ptr(src as ^byte, n)
-
-	fast := n/size_of(int) + 1
-	offset := (fast-1)*size_of(int)
-	curr_block := 0
-	if n <= size_of(int) {
-		fast = 0
-	}
-
-	la := slice_ptr(^a[0] as ^int, fast)
-	lb := slice_ptr(^b[0] as ^int, fast)
-
-	for ; curr_block < fast; curr_block++ {
-		if (la[curr_block] ~ lb[curr_block]) != 0 {
-			for pos := curr_block*size_of(int); pos < n; pos++ {
-				if (a[pos] ~ b[pos]) != 0 {
-					return a[pos] as int - b[pos] as int
-				}
-			}
-		}
-
-	}
-
-	for ; offset < n; offset++ {
-		if (a[offset] ~ b[offset]) != 0 {
-			return a[offset] as int - b[offset] as int
+	a := slice_ptr(cast(^byte)dst, n);
+	b := slice_ptr(cast(^byte)src, n);
+	for i in 0..<n {
+		match {
+		case a[i] < b[i]:
+			return -1;
+		case a[i] > b[i]:
+			return +1;
 		}
 	}
-
-	return 0
+	return 0;
 }
 
 
 
-kilobytes :: proc(x: int) -> int #inline { return          (x) * 1024 }
-megabytes :: proc(x: int) -> int #inline { return kilobytes(x) * 1024 }
-gigabytes :: proc(x: int) -> int #inline { return gigabytes(x) * 1024 }
-terabytes :: proc(x: int) -> int #inline { return terabytes(x) * 1024 }
+kilobytes :: proc(x: int) -> int #inline { return          (x) * 1024; }
+megabytes :: proc(x: int) -> int #inline { return kilobytes(x) * 1024; }
+gigabytes :: proc(x: int) -> int #inline { return gigabytes(x) * 1024; }
+terabytes :: proc(x: int) -> int #inline { return terabytes(x) * 1024; }
 
 is_power_of_two :: proc(x: int) -> bool {
 	if x <= 0 {
-		return false
+		return false;
 	}
-	return (x & (x-1)) == 0
+	return (x & (x-1)) == 0;
 }
 
 align_forward :: proc(ptr: rawptr, align: int) -> rawptr {
-	assert(is_power_of_two(align))
+	assert(is_power_of_two(align));
 
-	a := align as uint
-	p := ptr as uint
-	modulo := p & (a-1)
+	a := cast(uint)align;
+	p := cast(uint)ptr;
+	modulo := p & (a-1);
 	if modulo != 0 {
-		p += a - modulo
+		p += a - modulo;
 	}
-	return p as rawptr
+	return cast(rawptr)p;
 }
 
 
 
-AllocationHeader :: struct {
-	size: int
+Allocation_Header :: struct {
+	size: int,
 }
-allocation_header_fill :: proc(header: ^AllocationHeader, data: rawptr, size: int) {
-	header.size = size
-	ptr := (header+1) as ^int
 
-	for i := 0; ptr as rawptr < data; i++ {
-		(ptr+i)^ = -1
+allocation_header_fill :: proc(header: ^Allocation_Header, data: rawptr, size: int) {
+	header.size = size;
+	ptr := cast(^int)(header+1);
+
+	for i := 0; cast(rawptr)ptr < data; i += 1 {
+		(ptr+i)^ = -1;
 	}
 }
-allocation_header :: proc(data: rawptr) -> ^AllocationHeader {
-	p := data as ^int
+allocation_header :: proc(data: rawptr) -> ^Allocation_Header {
+	p := cast(^int)data;
 	for (p-1)^ == -1 {
-		p = (p-1)
+		p = (p-1);
 	}
-	return (p as ^AllocationHeader)-1
+	return cast(^Allocation_Header)p-1;
 }
 
 
@@ -113,16 +92,16 @@ allocation_header :: proc(data: rawptr) -> ^AllocationHeader {
 
 
 // Custom allocators
-
 Arena :: struct {
-	backing:    Allocator
-	memory:     []byte
-	temp_count: int
+	backing:    Allocator,
+	offset:     int,
+	memory:     []byte,
+	temp_count: int,
+}
 
-	Temp_Memory :: struct {
-		arena:          ^Arena
-		original_count: int
-	}
+Arena_Temp_Memory :: struct {
+	arena:          ^Arena,
+	original_count: int,
 }
 
 
@@ -130,22 +109,23 @@ Arena :: struct {
 
 
 init_arena_from_memory :: proc(using a: ^Arena, data: []byte) {
-	backing    = Allocator{}
-	memory     = data[:0]
-	temp_count = 0
+	backing    = Allocator{};
+	memory     = data[:0];
+	temp_count = 0;
 }
 
 init_arena_from_context :: proc(using a: ^Arena, size: int) {
-	backing = context.allocator
-	memory = new_slice(byte, 0, size)
-	temp_count = 0
+	backing = context.allocator;
+	memory = new_slice(byte, size);
+	temp_count = 0;
 }
 
 free_arena :: proc(using a: ^Arena) {
 	if backing.procedure != nil {
 		push_allocator backing {
-			free(memory.data)
-			memory = memory[0:0:0]
+			free(memory);
+			memory = nil;
+			offset = 0;
 		}
 	}
 }
@@ -154,57 +134,57 @@ arena_allocator :: proc(arena: ^Arena) -> Allocator {
 	return Allocator{
 		procedure = arena_allocator_proc,
 		data = arena,
-	}
+	};
 }
 
-arena_allocator_proc :: proc(allocator_data: rawptr, mode: Allocator.Mode,
-                             size, alignment: int,
-                             old_memory: rawptr, old_size: int, flags: u64) -> rawptr {
-	arena := allocator_data as ^Arena
+arena_allocator_proc :: proc(allocator_data: rawptr, mode: Allocator_Mode,
+                          size, alignment: int,
+                          old_memory: rawptr, old_size: int, flags: u64) -> rawptr {
+	using Allocator_Mode;
+	arena := cast(^Arena)allocator_data;
 
-	using Allocator.Mode
 	match mode {
 	case ALLOC:
-		total_size := size + alignment
+		total_size := size + alignment;
 
-		if arena.memory.count + total_size > arena.memory.capacity {
-			fmt.fprintln(os.stderr, "Arena out of memory")
-			return nil
+		if arena.offset + total_size > arena.memory.count {
+			fmt.fprintln(os.stderr, "Arena out of memory");
+			return nil;
 		}
 
-		#no_bounds_check end := ^arena.memory[arena.memory.count]
+		#no_bounds_check end := ^arena.memory[arena.offset];
 
-		ptr := align_forward(end, alignment)
-		arena.memory.count += total_size
-		return zero(ptr, size)
+		ptr := align_forward(end, alignment);
+		arena.offset += total_size;
+		return zero(ptr, size);
 
 	case FREE:
 		// NOTE(bill): Free all at once
-		// Use Arena.Temp_Memory if you want to free a block
+		// Use Arena_Temp_Memory if you want to free a block
 
 	case FREE_ALL:
-		arena.memory.count = 0
+		arena.offset = 0;
 
 	case RESIZE:
-		return default_resize_align(old_memory, old_size, size, alignment)
+		return default_resize_align(old_memory, old_size, size, alignment);
 	}
 
-	return nil
+	return nil;
 }
 
-begin_arena_temp_memory :: proc(a: ^Arena) -> Arena.Temp_Memory {
-	tmp: Arena.Temp_Memory
-	tmp.arena = a
-	tmp.original_count = a.memory.count
-	a.temp_count++
-	return tmp
+begin_arena_temp_memory :: proc(a: ^Arena) -> Arena_Temp_Memory {
+	tmp: Arena_Temp_Memory;
+	tmp.arena = a;
+	tmp.original_count = a.memory.count;
+	a.temp_count += 1;
+	return tmp;
 }
 
-end_arena_temp_memory :: proc(using tmp: Arena.Temp_Memory) {
-	assert(arena.memory.count >= original_count)
-	assert(arena.temp_count > 0)
-	arena.memory.count = original_count
-	arena.temp_count--
+end_arena_temp_memory :: proc(using tmp: Arena_Temp_Memory) {
+	assert(arena.memory.count >= original_count);
+	assert(arena.temp_count > 0);
+	arena.memory.count = original_count;
+	arena.temp_count -= 1;
 }
 
 
@@ -214,119 +194,131 @@ end_arena_temp_memory :: proc(using tmp: Arena.Temp_Memory) {
 
 
 align_of_type_info :: proc(type_info: ^Type_Info) -> int {
-	WORD_SIZE :: size_of(int)
-	using Type_Info
-
-	match type info : type_info {
-	case Named:
-		return align_of_type_info(info.base)
-	case Integer:
-		return info.size
-	case Float:
-		return info.size
-	case String:
-		return WORD_SIZE
-	case Boolean:
-		return 1
-	case Pointer:
-		return WORD_SIZE
-	case Maybe:
-		return max(align_of_type_info(info.elem), 1)
-	case Procedure:
-		return WORD_SIZE
-	case Array:
-		return align_of_type_info(info.elem)
-	case Slice:
-		return WORD_SIZE
-	case Vector:
-		return align_of_type_info(info.elem)
-	case Struct:
-		return info.align
-	case Union:
-		return info.align
-	case Raw_Union:
-		return info.align
-	case Enum:
-		return align_of_type_info(info.base)
+	prev_pow2 :: proc(n: i64) -> i64 {
+		if n <= 0 {
+			return 0;
+		}
+		n |= n >> 1;
+		n |= n >> 2;
+		n |= n >> 4;
+		n |= n >> 8;
+		n |= n >> 16;
+		n |= n >> 32;
+		return n - (n >> 1);
 	}
 
-	return 0
+	WORD_SIZE :: size_of(int);
+	MAX_ALIGN :: size_of([vector 64]f64); // TODO(bill): Should these constants be builtin constants?
+	using Type_Info;
+
+	match type info in type_info {
+	case Named:
+		return align_of_type_info(info.base);
+	case Integer:
+		return info.size;
+	case Float:
+		return info.size;
+	case String:
+		return WORD_SIZE;
+	case Boolean:
+		return 1;
+	case Pointer:
+		return WORD_SIZE;
+	case Maybe:
+		return max(align_of_type_info(info.elem), 1);
+	case Procedure:
+		return WORD_SIZE;
+	case Array:
+		return align_of_type_info(info.elem);
+	case Slice:
+		return WORD_SIZE;
+	case Vector:
+		size := size_of_type_info(info.elem);
+		count := cast(int)max(prev_pow2(cast(i64)info.count), 1);
+		total := size * count;
+		return clamp(total, 1, MAX_ALIGN);
+	case Struct:
+		return info.align;
+	case Union:
+		return info.align;
+	case Raw_Union:
+		return info.align;
+	}
+
+	return 0;
 }
 
 align_formula :: proc(size, align: int) -> int {
-	result := size + align-1
-	return result - result%align
+	result := size + align-1;
+	return result - result%align;
 }
 
 size_of_type_info :: proc(type_info: ^Type_Info) -> int {
-	WORD_SIZE :: size_of(int)
-	using Type_Info
-
-	match type info : type_info {
+	WORD_SIZE :: size_of(int);
+	using Type_Info;
+	match type info in type_info {
 	case Named:
-		return size_of_type_info(info.base)
+		return size_of_type_info(info.base);
 	case Integer:
-		return info.size
+		return info.size;
 	case Float:
-		return info.size
+		return info.size;
 	case Any:
-		return 2*WORD_SIZE
+		return 2*WORD_SIZE;
 	case String:
-		return 2*WORD_SIZE
+		return 2*WORD_SIZE;
 	case Boolean:
-		return 1
+		return 1;
 	case Pointer:
-		return WORD_SIZE
+		return WORD_SIZE;
 	case Maybe:
-		return size_of_type_info(info.elem) + 1
+		return size_of_type_info(info.elem) + 1;
 	case Procedure:
-		return WORD_SIZE
+		return WORD_SIZE;
 	case Array:
-		count := info.count
+		count := info.count;
 		if count == 0 {
-			return 0
+			return 0;
 		}
-		size      := size_of_type_info(info.elem)
-		align     := align_of_type_info(info.elem)
-		alignment := align_formula(size, align)
-		return alignment*(count-1) + size
+		size      := size_of_type_info(info.elem);
+		align     := align_of_type_info(info.elem);
+		alignment := align_formula(size, align);
+		return alignment*(count-1) + size;
 	case Slice:
-		return 3*WORD_SIZE
+		return 3*WORD_SIZE;
 	case Vector:
 		is_bool :: proc(type_info: ^Type_Info) -> bool {
-			match type info : type_info {
+			match type info in type_info {
 			case Named:
-				return is_bool(info.base)
+				return is_bool(info.base);
 			case Boolean:
-				return true
+				return true;
 			}
-			return false
+			return false;
 		}
 
-		count := info.count
+		count := info.count;
 		if count == 0 {
-			return 0
+			return 0;
 		}
-		bit_size := 8*size_of_type_info(info.elem)
+		bit_size := 8*size_of_type_info(info.elem);
 		if is_bool(info.elem) {
 			// NOTE(bill): LLVM can store booleans as 1 bit because a boolean _is_ an `i1`
 			// Silly LLVM spec
-			bit_size = 1
+			bit_size = 1;
 		}
-		total_size_in_bits := bit_size * count
-		total_size := (total_size_in_bits+7)/8
-		return total_size
+		total_size_in_bits := bit_size * count;
+		total_size := (total_size_in_bits+7)/8;
+		return total_size;
 
 	case Struct:
-		return info.size
+		return info.size;
 	case Union:
-		return info.size
+		return info.size;
 	case Raw_Union:
-		return info.size
-	case Enum:
-		return size_of_type_info(info.base)
+		return info.size;
 	}
 
-	return 0
+	return 0;
 }
 

core/opengl.odin

@@ -1,155 +1,155 @@
-#foreign_system_library "opengl32"
-#import "win32.odin"
-#load "opengl_constants.odin"
+#foreign_system_library lib "opengl32.lib" when ODIN_OS == "windows";
+#import win32 "sys/windows.odin" when ODIN_OS == "windows";
+#include "opengl_constants.odin";
 
-Clear          :: proc(mask: u32)                                #foreign "glClear"
-ClearColor     :: proc(r, g, b, a: f32)                          #foreign "glClearColor"
-Begin          :: proc(mode: i32)                                #foreign "glBegin"
-End            :: proc()                                         #foreign "glEnd"
-Finish         :: proc()                                         #foreign "glFinish"
-BlendFunc      :: proc(sfactor, dfactor: i32)                    #foreign "glBlendFunc"
-Enable         :: proc(cap: i32)                                 #foreign "glEnable"
-Disable        :: proc(cap: i32)                                 #foreign "glDisable"
-GenTextures    :: proc(count: i32, result: ^u32)                 #foreign "glGenTextures"
-DeleteTextures :: proc(count: i32, result: ^u32)                 #foreign "glDeleteTextures"
-TexParameteri  :: proc(target, pname, param: i32)                #foreign "glTexParameteri"
-TexParameterf  :: proc(target: i32, pname: i32, param: f32)      #foreign "glTexParameterf"
-BindTexture    :: proc(target: i32, texture: u32)                #foreign "glBindTexture"
-LoadIdentity   :: proc()                                         #foreign "glLoadIdentity"
-Viewport       :: proc(x, y, width, height: i32)                 #foreign "glViewport"
-Ortho          :: proc(left, right, bottom, top, near, far: f64) #foreign "glOrtho"
-Color3f        :: proc(r, g, b: f32)                             #foreign "glColor3f"
-Vertex3f       :: proc(x, y, z: f32)                             #foreign "glVertex3f"
-TexImage2D     :: proc(target, level, internal_format,
-                       width, height, border,
-                       format, _type: i32, pixels: rawptr) #foreign "glTexImage2D"
+Clear         :: proc(mask: u32)                                #foreign lib "glClear";
+ClearColor    :: proc(r, g, b, a: f32)                          #foreign lib "glClearColor";
+Begin         :: proc(mode: i32)                                #foreign lib "glBegin";
+End           :: proc()                                         #foreign lib "glEnd";
+Finish        :: proc()                                         #foreign lib "glFinish";
+BlendFunc     :: proc(sfactor, dfactor: i32)                    #foreign lib "glBlendFunc";
+Enable        :: proc(cap: i32)                                 #foreign lib "glEnable";
+Disable       :: proc(cap: i32)                                 #foreign lib "glDisable";
+GenTextures   :: proc(count: i32, result: ^u32)                 #foreign lib "glGenTextures";
+DeleteTextures:: proc(count: i32, result: ^u32)                 #foreign lib "glDeleteTextures";
+TexParameteri :: proc(target, pname, param: i32)                #foreign lib "glTexParameteri";
+TexParameterf :: proc(target: i32, pname: i32, param: f32)      #foreign lib "glTexParameterf";
+BindTexture   :: proc(target: i32, texture: u32)                #foreign lib "glBindTexture";
+LoadIdentity  :: proc()                                         #foreign lib "glLoadIdentity";
+Viewport      :: proc(x, y, width, height: i32)                 #foreign lib "glViewport";
+Ortho         :: proc(left, right, bottom, top, near, far: f64) #foreign lib "glOrtho";
+Color3f       :: proc(r, g, b: f32)                             #foreign lib "glColor3f";
+Vertex3f      :: proc(x, y, z: f32)                             #foreign lib "glVertex3f";
+TexImage2D    :: proc(target, level, internal_format,
+                      width, height, border,
+                      format, _type: i32, pixels: rawptr) #foreign lib "glTexImage2D";
 
-GetError    :: proc() -> i32            #foreign "glGetError"
-GetString   :: proc(name: i32) -> ^byte #foreign "glGetString"
-GetIntegerv :: proc(name: i32, v: ^i32) #foreign "glGetIntegerv"
+GetError    :: proc() -> i32            #foreign lib "glGetError";
+GetString   :: proc(name: i32) -> ^byte #foreign lib "glGetString";
+GetIntegerv :: proc(name: i32, v: ^i32) #foreign lib "glGetIntegerv";
 
 
+string_data :: proc(s: string) -> ^u8 #inline { return ^s[0]; }
 
-_libgl := win32.LoadLibraryA(("opengl32.dll\x00" as string).data)
+_libgl := win32.LoadLibraryA(string_data("opengl32.dll\x00"));
 
-GetProcAddress :: proc(name: string) -> proc() {
-	assert(name[name.count-1] == 0)
-	res := win32.wglGetProcAddress(name.data)
+GetProcAddress :: proc(name: string) -> proc() #cc_c {
+	assert(name[name.count-1] == 0);
+	res := win32.wglGetProcAddress(name.data);
 	if res == nil {
 		res = win32.GetProcAddress(_libgl, name.data);
 	}
-	return res
+	return res;
 }
 
+GenBuffers:       proc(count: i32, buffers: ^u32) #cc_c;
+GenVertexArrays:  proc(count: i32, buffers: ^u32) #cc_c;
+GenSamplers:      proc(count: i32, buffers: ^u32) #cc_c;
+BindBuffer:       proc(target: i32, buffer: u32) #cc_c;
+BindVertexArray:  proc(buffer: u32) #cc_c;
+BindSampler:      proc(position: i32, sampler: u32) #cc_c;
+BufferData:       proc(target: i32, size: int, data: rawptr, usage: i32) #cc_c;
+BufferSubData:    proc(target: i32, offset, size: int, data: rawptr) #cc_c;
 
-GenBuffers:      proc(count: i32, buffers: ^u32)
-GenVertexArrays: proc(count: i32, buffers: ^u32)
-GenSamplers:     proc(count: i32, buffers: ^u32)
-BindBuffer:      proc(target: i32, buffer: u32)
-BindVertexArray: proc(buffer: u32)
-BindSampler:     proc(position: i32, sampler: u32)
-BufferData:      proc(target: i32, size: int, data: rawptr, usage: i32)
-BufferSubData:   proc(target: i32, offset, size: int, data: rawptr)
+DrawArrays:       proc(mode, first: i32, count: u32) #cc_c;
+DrawElements:     proc(mode: i32, count: u32, type_: i32, indices: rawptr) #cc_c;
 
-DrawArrays:      proc(mode, first: i32, count: u32)
-DrawElements:    proc(mode: i32, count: u32, type_: i32, indices: rawptr)
+MapBuffer:        proc(target, access: i32) -> rawptr #cc_c;
+UnmapBuffer:      proc(target: i32) #cc_c;
 
-MapBuffer:       proc(target, access: i32) -> rawptr
-UnmapBuffer:     proc(target: i32)
+VertexAttribPointer:  proc(index: u32, size, type_: i32, normalized: i32, stride: u32, pointer: rawptr) #cc_c;
+EnableVertexAttribArray:  proc(index: u32) #cc_c;
 
-VertexAttribPointer: proc(index: u32, size, type_: i32, normalized: i32, stride: u32, pointer: rawptr)
-EnableVertexAttribArray: proc(index: u32)
-
-CreateShader:  proc(shader_type: i32) -> u32
-ShaderSource:  proc(shader: u32, count: u32, string: ^^byte, length: ^i32)
-CompileShader: proc(shader: u32)
-CreateProgram: proc() -> u32
-AttachShader:  proc(program, shader: u32)
-DetachShader:  proc(program, shader: u32)
-DeleteShader:  proc(shader: u32)
-LinkProgram:   proc(program: u32)
-UseProgram:    proc(program: u32)
-DeleteProgram: proc(program: u32)
+CreateShader:   proc(shader_type: i32) -> u32 #cc_c;
+ShaderSource:   proc(shader: u32, count: u32, str: ^^byte, length: ^i32) #cc_c;
+CompileShader:  proc(shader: u32) #cc_c;
+CreateProgram:  proc() -> u32 #cc_c;
+AttachShader:   proc(program, shader: u32) #cc_c;
+DetachShader:   proc(program, shader: u32) #cc_c;
+DeleteShader:   proc(shader:  u32) #cc_c;
+LinkProgram:    proc(program: u32) #cc_c;
+UseProgram:     proc(program: u32) #cc_c;
+DeleteProgram:  proc(program: u32) #cc_c;
 
 
-GetShaderiv:       proc(shader:  u32, pname: i32, params: ^i32)
-GetProgramiv:      proc(program: u32, pname: i32, params: ^i32)
-GetShaderInfoLog:  proc(shader:  u32, max_length: u32, length: ^u32, info_long: ^byte)
-GetProgramInfoLog: proc(program: u32, max_length: u32, length: ^u32, info_long: ^byte)
+GetShaderiv:        proc(shader:  u32, pname: i32, params: ^i32) #cc_c;
+GetProgramiv:       proc(program: u32, pname: i32, params: ^i32) #cc_c;
+GetShaderInfoLog:   proc(shader:  u32, max_length: u32, length: ^u32, info_long: ^byte) #cc_c;
+GetProgramInfoLog:  proc(program: u32, max_length: u32, length: ^u32, info_long: ^byte) #cc_c;
 
-ActiveTexture:  proc(texture: i32)
-GenerateMipmap: proc(target: i32)
+ActiveTexture:   proc(texture: i32) #cc_c;
+GenerateMipmap:  proc(target:  i32) #cc_c;
 
-SamplerParameteri:    proc(sampler: u32, pname: i32, param: i32)
-SamplerParameterf:    proc(sampler: u32, pname: i32, param: f32)
-SamplerParameteriv:   proc(sampler: u32, pname: i32, params: ^i32)
-SamplerParameterfv:   proc(sampler: u32, pname: i32, params: ^f32)
-SamplerParameterIiv:  proc(sampler: u32, pname: i32, params: ^i32)
-SamplerParameterIuiv: proc(sampler: u32, pname: i32, params: ^u32)
+SamplerParameteri:     proc(sampler: u32, pname: i32, param: i32) #cc_c;
+SamplerParameterf:     proc(sampler: u32, pname: i32, param: f32) #cc_c;
+SamplerParameteriv:    proc(sampler: u32, pname: i32, params: ^i32) #cc_c;
+SamplerParameterfv:    proc(sampler: u32, pname: i32, params: ^f32) #cc_c;
+SamplerParameterIiv:   proc(sampler: u32, pname: i32, params: ^i32) #cc_c;
+SamplerParameterIuiv:  proc(sampler: u32, pname: i32, params: ^u32) #cc_c;
 
 
-Uniform1i:        proc(loc: i32, v0: i32)
-Uniform2i:        proc(loc: i32, v0, v1: i32)
-Uniform3i:        proc(loc: i32, v0, v1, v2: i32)
-Uniform4i:        proc(loc: i32, v0, v1, v2, v3: i32)
-Uniform1f:        proc(loc: i32, v0: f32)
-Uniform2f:        proc(loc: i32, v0, v1: f32)
-Uniform3f:        proc(loc: i32, v0, v1, v2: f32)
-Uniform4f:        proc(loc: i32, v0, v1, v2, v3: f32)
-UniformMatrix4fv: proc(loc: i32, count: u32, transpose: i32, value: ^f32)
+Uniform1i:         proc(loc: i32, v0: i32) #cc_c;
+Uniform2i:         proc(loc: i32, v0, v1: i32) #cc_c;
+Uniform3i:         proc(loc: i32, v0, v1, v2: i32) #cc_c;
+Uniform4i:         proc(loc: i32, v0, v1, v2, v3: i32) #cc_c;
+Uniform1f:         proc(loc: i32, v0: f32) #cc_c;
+Uniform2f:         proc(loc: i32, v0, v1: f32) #cc_c;
+Uniform3f:         proc(loc: i32, v0, v1, v2: f32) #cc_c;
+Uniform4f:         proc(loc: i32, v0, v1, v2, v3: f32) #cc_c;
+UniformMatrix4fv:  proc(loc: i32, count: u32, transpose: i32, value: ^f32) #cc_c;
 
-GetUniformLocation: proc(program: u32, name: ^byte) -> i32
+GetUniformLocation:  proc(program: u32, name: ^byte) -> i32 #cc_c;
 
 init :: proc() {
-	set_proc_address :: proc(p: rawptr, name: string) #inline { (p as ^proc())^ = GetProcAddress(name) }
+	set_proc_address :: proc(p: rawptr, name: string) #inline { (cast(^(proc() #cc_c))p)^ = GetProcAddress(name); }
 
-	set_proc_address(^GenBuffers,      "glGenBuffers\x00")
-	set_proc_address(^GenVertexArrays, "glGenVertexArrays\x00")
-	set_proc_address(^GenSamplers,     "glGenSamplers\x00")
-	set_proc_address(^BindBuffer,      "glBindBuffer\x00")
-	set_proc_address(^BindSampler,     "glBindSampler\x00")
-	set_proc_address(^BindVertexArray, "glBindVertexArray\x00")
-	set_proc_address(^BufferData,      "glBufferData\x00")
-	set_proc_address(^BufferSubData,   "glBufferSubData\x00")
+	set_proc_address(^GenBuffers,      "glGenBuffers\x00");
+	set_proc_address(^GenVertexArrays, "glGenVertexArrays\x00");
+	set_proc_address(^GenSamplers,     "glGenSamplers\x00");
+	set_proc_address(^BindBuffer,      "glBindBuffer\x00");
+	set_proc_address(^BindSampler,     "glBindSampler\x00");
+	set_proc_address(^BindVertexArray, "glBindVertexArray\x00");
+	set_proc_address(^BufferData,      "glBufferData\x00");
+	set_proc_address(^BufferSubData,   "glBufferSubData\x00");
 
-	set_proc_address(^DrawArrays,      "glDrawArrays\x00")
-	set_proc_address(^DrawElements,    "glDrawElements\x00")
+	set_proc_address(^DrawArrays,      "glDrawArrays\x00");
+	set_proc_address(^DrawElements,    "glDrawElements\x00");
 
-	set_proc_address(^MapBuffer,   "glMapBuffer\x00")
-	set_proc_address(^UnmapBuffer, "glUnmapBuffer\x00")
+	set_proc_address(^MapBuffer,   "glMapBuffer\x00");
+	set_proc_address(^UnmapBuffer, "glUnmapBuffer\x00");
 
-	set_proc_address(^VertexAttribPointer,     "glVertexAttribPointer\x00")
-	set_proc_address(^EnableVertexAttribArray, "glEnableVertexAttribArray\x00")
+	set_proc_address(^VertexAttribPointer,     "glVertexAttribPointer\x00");
+	set_proc_address(^EnableVertexAttribArray, "glEnableVertexAttribArray\x00");
 
-	set_proc_address(^CreateShader,  "glCreateShader\x00")
-	set_proc_address(^ShaderSource,  "glShaderSource\x00")
-	set_proc_address(^CompileShader, "glCompileShader\x00")
-	set_proc_address(^CreateProgram, "glCreateProgram\x00")
-	set_proc_address(^AttachShader,  "glAttachShader\x00")
-	set_proc_address(^DetachShader,  "glDetachShader\x00")
-	set_proc_address(^DeleteShader,  "glDeleteShader\x00")
-	set_proc_address(^LinkProgram,   "glLinkProgram\x00")
-	set_proc_address(^UseProgram,    "glUseProgram\x00")
-	set_proc_address(^DeleteProgram, "glDeleteProgram\x00")
+	set_proc_address(^CreateShader,  "glCreateShader\x00");
+	set_proc_address(^ShaderSource,  "glShaderSource\x00");
+	set_proc_address(^CompileShader, "glCompileShader\x00");
+	set_proc_address(^CreateProgram, "glCreateProgram\x00");
+	set_proc_address(^AttachShader,  "glAttachShader\x00");
+	set_proc_address(^DetachShader,  "glDetachShader\x00");
+	set_proc_address(^DeleteShader,  "glDeleteShader\x00");
+	set_proc_address(^LinkProgram,   "glLinkProgram\x00");
+	set_proc_address(^UseProgram,    "glUseProgram\x00");
+	set_proc_address(^DeleteProgram, "glDeleteProgram\x00");
 
-	set_proc_address(^GetShaderiv,       "glGetShaderiv\x00")
-	set_proc_address(^GetProgramiv,      "glGetProgramiv\x00")
-	set_proc_address(^GetShaderInfoLog,  "glGetShaderInfoLog\x00")
-	set_proc_address(^GetProgramInfoLog, "glGetProgramInfoLog\x00")
+	set_proc_address(^GetShaderiv,       "glGetShaderiv\x00");
+	set_proc_address(^GetProgramiv,      "glGetProgramiv\x00");
+	set_proc_address(^GetShaderInfoLog,  "glGetShaderInfoLog\x00");
+	set_proc_address(^GetProgramInfoLog, "glGetProgramInfoLog\x00");
 
-	set_proc_address(^ActiveTexture,  "glActiveTexture\x00")
-	set_proc_address(^GenerateMipmap, "glGenerateMipmap\x00")
+	set_proc_address(^ActiveTexture,  "glActiveTexture\x00");
+	set_proc_address(^GenerateMipmap, "glGenerateMipmap\x00");
 
-	set_proc_address(^Uniform1i,        "glUniform1i\x00")
-	set_proc_address(^UniformMatrix4fv, "glUniformMatrix4fv\x00")
+	set_proc_address(^Uniform1i,        "glUniform1i\x00");
+	set_proc_address(^UniformMatrix4fv, "glUniformMatrix4fv\x00");
 
-	set_proc_address(^GetUniformLocation, "glGetUniformLocation\x00")
+	set_proc_address(^GetUniformLocation, "glGetUniformLocation\x00");
 
-	set_proc_address(^SamplerParameteri,    "glSamplerParameteri\x00")
-	set_proc_address(^SamplerParameterf,    "glSamplerParameterf\x00")
-	set_proc_address(^SamplerParameteriv,   "glSamplerParameteriv\x00")
-	set_proc_address(^SamplerParameterfv,   "glSamplerParameterfv\x00")
-	set_proc_address(^SamplerParameterIiv,  "glSamplerParameterIiv\x00")
-	set_proc_address(^SamplerParameterIuiv, "glSamplerParameterIuiv\x00")
+	set_proc_address(^SamplerParameteri,    "glSamplerParameteri\x00");
+	set_proc_address(^SamplerParameterf,    "glSamplerParameterf\x00");
+	set_proc_address(^SamplerParameteriv,   "glSamplerParameteriv\x00");
+	set_proc_address(^SamplerParameterfv,   "glSamplerParameterfv\x00");
+	set_proc_address(^SamplerParameterIiv,  "glSamplerParameterIiv\x00");
+	set_proc_address(^SamplerParameterIuiv, "glSamplerParameterIuiv\x00");
 }
 

core/os.odin

@@ -1,172 +1,2 @@
-#import "win32.odin"
-#import "fmt.odin"
-
-File_Time :: type u64
-
-File :: struct {
-	Handle :: type win32.HANDLE
-	handle:          Handle
-	last_write_time: File_Time
-}
-
-open :: proc(name: string) -> (File, bool) {
-	using win32
-	buf: [300]byte
-	copy(buf[:], name as []byte)
-	f := File{
-		handle = CreateFileA(^buf[0], FILE_GENERIC_READ, FILE_SHARE_READ, nil, OPEN_EXISTING, 0, nil),
-	}
-	success := f.handle != INVALID_HANDLE_VALUE as File.Handle
-	f.last_write_time = last_write_time(^f)
-	return f, success
-}
-
-create :: proc(name: string) -> (File, bool) {
-	using win32
-	buf: [300]byte
-	copy(buf[:], name as []byte)
-	f := File{
-		handle = CreateFileA(^buf[0], FILE_GENERIC_WRITE, FILE_SHARE_READ, nil, CREATE_ALWAYS, 0, nil),
-	}
-	success := f.handle != INVALID_HANDLE_VALUE as File.Handle
-	f.last_write_time = last_write_time(^f)
-	return f, success
-}
-
-close :: proc(using f: ^File) {
-	win32.CloseHandle(handle)
-}
-
-write :: proc(using f: ^File, buf: []byte) -> bool {
-	bytes_written: i32
-	return win32.WriteFile(handle, buf.data, buf.count as i32, ^bytes_written, nil) != 0
-}
-
-file_has_changed :: proc(f: ^File) -> bool {
-	last_write_time := last_write_time(f)
-	if f.last_write_time != last_write_time {
-		f.last_write_time = last_write_time
-		return true
-	}
-	return false
-}
-
-
-
-last_write_time :: proc(f: ^File) -> File_Time {
-	file_info: win32.BY_HANDLE_FILE_INFORMATION
-	win32.GetFileInformationByHandle(f.handle, ^file_info)
-	l := file_info.last_write_time.low_date_time as File_Time
-	h := file_info.last_write_time.high_date_time as File_Time
-	return l | h << 32
-}
-
-last_write_time_by_name :: proc(name: string) -> File_Time {
-	last_write_time: win32.FILETIME
-	data: win32.WIN32_FILE_ATTRIBUTE_DATA
-
-	buf: [1024]byte
-	path := buf[:0]
-	fmt.bprint(^path, name, "\x00")
-
-	if win32.GetFileAttributesExA(path.data, win32.GetFileExInfoStandard, ^data) != 0 {
-		last_write_time = data.last_write_time
-	}
-
-	l := last_write_time.low_date_time as File_Time
-	h := last_write_time.high_date_time as File_Time
-	return l | h << 32
-}
-
-
-
-
-File_Standard :: type enum {
-	INPUT,
-	OUTPUT,
-	ERROR,
-}
-
-// NOTE(bill): Uses startup to initialize it
-__std_files := [File_Standard.count]File{
-	{handle = win32.GetStdHandle(win32.STD_INPUT_HANDLE)},
-	{handle = win32.GetStdHandle(win32.STD_OUTPUT_HANDLE)},
-	{handle = win32.GetStdHandle(win32.STD_ERROR_HANDLE)},
-}
-
-stdin  := ^__std_files[File_Standard.INPUT]
-stdout := ^__std_files[File_Standard.OUTPUT]
-stderr := ^__std_files[File_Standard.ERROR]
-
-
-
-read_entire_file :: proc(name: string) -> ([]byte, bool) {
-	buf: [300]byte
-	copy(buf[:], name as []byte)
-
-	f, file_ok := open(name)
-	if !file_ok {
-		return nil, false
-	}
-	defer close(^f)
-
-	length: i64
-	file_size_ok := win32.GetFileSizeEx(f.handle as win32.HANDLE, ^length) != 0
-	if !file_size_ok {
-		return nil, false
-	}
-
-	data := new_slice(u8, length)
-	if data.data == nil {
-		return nil, false
-	}
-
-	single_read_length: i32
-	total_read: i64
-
-	for total_read < length {
-		remaining := length - total_read
-		to_read: u32
-		MAX :: 1<<32-1
-		if remaining <= MAX {
-			to_read = remaining as u32
-		} else {
-			to_read = MAX
-		}
-
-		win32.ReadFile(f.handle as win32.HANDLE, ^data[total_read], to_read, ^single_read_length, nil)
-		if single_read_length <= 0 {
-			free(data.data)
-			return nil, false
-		}
-
-		total_read += single_read_length as i64
-	}
-
-	return data, true
-}
-
-
-
-heap_alloc :: proc(size: int) -> rawptr {
-	return win32.HeapAlloc(win32.GetProcessHeap(), win32.HEAP_ZERO_MEMORY, size)
-}
-heap_resize :: proc(ptr: rawptr, new_size: int) -> rawptr {
-	return win32.HeapReAlloc(win32.GetProcessHeap(), win32.HEAP_ZERO_MEMORY, ptr, new_size)
-}
-heap_free :: proc(ptr: rawptr) {
-	win32.HeapFree(win32.GetProcessHeap(), 0, ptr)
-}
-
-
-exit :: proc(code: int) {
-	win32.ExitProcess(code as u32)
-}
-
-
-
-current_thread_id :: proc() -> int {
-	GetCurrentThreadId :: proc() -> u32 #foreign #dll_import
-	return GetCurrentThreadId() as int
-}
+#include "os_windows.odin" when ODIN_OS == "windows"
 

core/os_windows.odin

@@ -0,0 +1,272 @@
+#import win32 "sys/windows.odin";
+#import "fmt.odin";
+
+
+Handle    :: int;
+File_Time :: u64;
+Errno     :: int;
+
+INVALID_HANDLE: Handle : -1;
+
+
+O_RDONLY   :: 0x00000;
+O_WRONLY   :: 0x00001;
+O_RDWR     :: 0x00002;
+O_CREAT    :: 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;
+
+ERROR_NONE:                Errno : 0;
+ERROR_FILE_NOT_FOUND:      Errno : 2;
+ERROR_PATH_NOT_FOUND:      Errno : 3;
+ERROR_ACCESS_DENIED:       Errno : 5;
+ERROR_NO_MORE_FILES:       Errno : 18;
+ERROR_HANDLE_EOF:          Errno : 38;
+ERROR_NETNAME_DELETED:     Errno : 64;
+ERROR_FILE_EXISTS:         Errno : 80;
+ERROR_BROKEN_PIPE:         Errno : 109;
+ERROR_BUFFER_OVERFLOW:     Errno : 111;
+ERROR_INSUFFICIENT_BUFFER: Errno : 122;
+ERROR_MOD_NOT_FOUND:       Errno : 126;
+ERROR_PROC_NOT_FOUND:      Errno : 127;
+ERROR_DIR_NOT_EMPTY:       Errno : 145;
+ERROR_ALREADY_EXISTS:      Errno : 183;
+ERROR_ENVVAR_NOT_FOUND:    Errno : 203;
+ERROR_MORE_DATA:           Errno : 234;
+ERROR_OPERATION_ABORTED:   Errno : 995;
+ERROR_IO_PENDING:          Errno : 997;
+ERROR_NOT_FOUND:           Errno : 1168;
+ERROR_PRIVILEGE_NOT_HELD:  Errno : 1314;
+WSAEACCES:                 Errno : 10013;
+WSAECONNRESET:             Errno : 10054;
+
+// Windows reserves errors >= 1<<29 for application use
+ERROR_FILE_IS_PIPE: Errno : 1<<29 + 0;
+
+
+
+
+open :: proc(path: string, mode: int, perm: u32) -> (Handle, Errno) {
+	using win32;
+	if path.count == 0 {
+		return INVALID_HANDLE, ERROR_FILE_NOT_FOUND;
+	}
+
+	access: u32;
+	match mode & (O_RDONLY|O_WRONLY|O_RDWR) {
+	case O_RDONLY: access = FILE_GENERIC_READ;
+	case O_WRONLY: access = FILE_GENERIC_WRITE;
+	case O_RDWR:   access = FILE_GENERIC_READ | FILE_GENERIC_WRITE;
+	}
+
+	if mode&O_CREAT != 0 {
+		access |= FILE_GENERIC_WRITE;
+	}
+	if mode&O_APPEND != 0 {
+		access &~= FILE_GENERIC_WRITE;
+		access |= FILE_APPEND_DATA;
+	}
+
+	share_mode := cast(u32)(FILE_SHARE_READ|FILE_SHARE_WRITE);
+	sa: ^SECURITY_ATTRIBUTES = nil;
+	sa_inherit := SECURITY_ATTRIBUTES{length = size_of(SECURITY_ATTRIBUTES), inherit_handle = 1};
+	if mode&O_CLOEXEC == 0 {
+		sa = ^sa_inherit;
+	}
+
+	create_mode: u32;
+	match {
+	case mode&(O_CREAT|O_EXCL) == (O_CREAT | O_EXCL):
+		create_mode = CREATE_NEW;
+	case mode&(O_CREAT|O_TRUNC) == (O_CREAT | O_TRUNC):
+		create_mode = CREATE_ALWAYS;
+	case mode&O_CREAT == O_CREAT:
+		create_mode = OPEN_ALWAYS;
+	case mode&O_TRUNC == O_TRUNC:
+		create_mode = TRUNCATE_EXISTING;
+	default:
+		create_mode = OPEN_EXISTING;
+	}
+
+	buf: [300]byte;
+	copy(buf[:], cast([]byte)path);
+
+	handle := cast(Handle)CreateFileA(^buf[0], access, share_mode, sa, create_mode, FILE_ATTRIBUTE_NORMAL, nil);
+	if handle != INVALID_HANDLE {
+		return handle, ERROR_NONE;
+	}
+	err := GetLastError();
+	return INVALID_HANDLE, cast(Errno)err;
+}
+
+close :: proc(fd: Handle) {
+	win32.CloseHandle(cast(win32.HANDLE)fd);
+}
+
+write :: proc(fd: Handle, data: []byte) -> (int, Errno) {
+	bytes_written: i32;
+	e := win32.WriteFile(cast(win32.HANDLE)fd, data.data, cast(i32)data.count, ^bytes_written, nil);
+	if e == win32.FALSE {
+		err := win32.GetLastError();
+		return 0, cast(Errno)err;
+	}
+	return cast(int)bytes_written, ERROR_NONE;
+}
+
+read :: proc(fd: Handle, data: []byte) -> (int, Errno) {
+	bytes_read: i32;
+	e := win32.ReadFile(cast(win32.HANDLE)fd, data.data, cast(u32)data.count, ^bytes_read, nil);
+	if e == win32.FALSE {
+		err := win32.GetLastError();
+		return 0, cast(Errno)err;
+	}
+	return cast(int)bytes_read, ERROR_NONE;
+}
+
+seek :: proc(fd: Handle, offset: i64, whence: int) -> (i64, Errno) {
+	using win32;
+	w: u32;
+	match whence {
+	case 0: w = FILE_BEGIN;
+	case 1: w = FILE_CURRENT;
+	case 2: w = FILE_END;
+	}
+	hi := cast(i32)(offset>>32);
+	lo := cast(i32)(offset);
+	ft := GetFileType(cast(HANDLE)fd);
+	if ft == FILE_TYPE_PIPE {
+		return 0, ERROR_FILE_IS_PIPE;
+	}
+	dw_ptr := SetFilePointer(cast(HANDLE)fd, lo, ^hi, w);
+	if dw_ptr == INVALID_SET_FILE_POINTER {
+		err := GetLastError();
+		return 0, cast(Errno)err;
+	}
+	return cast(i64)hi<<32 + cast(i64)dw_ptr, ERROR_NONE;
+}
+
+
+// NOTE(bill): Uses startup to initialize it
+stdin  := get_std_handle(win32.STD_INPUT_HANDLE);
+stdout := get_std_handle(win32.STD_OUTPUT_HANDLE);
+stderr := get_std_handle(win32.STD_ERROR_HANDLE);
+
+
+get_std_handle :: proc(h: int) -> Handle {
+	fd := win32.GetStdHandle(cast(i32)h);
+	win32.SetHandleInformation(fd, win32.HANDLE_FLAG_INHERIT, 0);
+	return cast(Handle)fd;
+}
+
+
+
+
+
+
+last_write_time :: proc(fd: Handle) -> File_Time {
+	file_info: win32.BY_HANDLE_FILE_INFORMATION;
+	win32.GetFileInformationByHandle(cast(win32.HANDLE)fd, ^file_info);
+	lo := cast(File_Time)file_info.last_write_time.lo;
+	hi := cast(File_Time)file_info.last_write_time.hi;
+	return lo | hi << 32;
+}
+
+last_write_time_by_name :: proc(name: string) -> File_Time {
+	last_write_time: win32.FILETIME;
+	data: win32.FILE_ATTRIBUTE_DATA;
+	buf: [1024]byte;
+
+	assert(buf.count > name.count);
+
+	copy(buf[:], cast([]byte)name);
+
+	if win32.GetFileAttributesExA(^buf[0], win32.GetFileExInfoStandard, ^data) != 0 {
+		last_write_time = data.last_write_time;
+	}
+
+	l := cast(File_Time)last_write_time.lo;
+	h := cast(File_Time)last_write_time.hi;
+	return l | h << 32;
+}
+
+
+
+
+
+read_entire_file :: proc(name: string) -> ([]byte, bool) {
+	buf: [300]byte;
+	copy(buf[:], cast([]byte)name);
+
+	fd, err := open(name, O_RDONLY, 0);
+	if err != ERROR_NONE {
+		return nil, false;
+	}
+	defer close(fd);
+
+	length: i64;
+	file_size_ok := win32.GetFileSizeEx(cast(win32.HANDLE)fd, ^length) != 0;
+	if !file_size_ok {
+		return nil, false;
+	}
+
+	data := new_slice(u8, length);
+	if data.data == nil {
+		return nil, false;
+	}
+
+	single_read_length: i32;
+	total_read: i64;
+
+	for total_read < length {
+		remaining := length - total_read;
+		to_read: u32;
+		MAX :: 1<<32-1;
+		if remaining <= MAX {
+			to_read = cast(u32)remaining;
+		} else {
+			to_read = MAX;
+		}
+
+		win32.ReadFile(cast(win32.HANDLE)fd, ^data[total_read], to_read, ^single_read_length, nil);
+		if single_read_length <= 0 {
+			free(data);
+			return nil, false;
+		}
+
+		total_read += cast(i64)single_read_length;
+	}
+
+	return data, true;
+}
+
+
+
+heap_alloc :: proc(size: int) -> rawptr {
+	return win32.HeapAlloc(win32.GetProcessHeap(), win32.HEAP_ZERO_MEMORY, size);
+}
+heap_resize :: proc(ptr: rawptr, new_size: int) -> rawptr {
+	return win32.HeapReAlloc(win32.GetProcessHeap(), win32.HEAP_ZERO_MEMORY, ptr, new_size);
+}
+heap_free :: proc(ptr: rawptr) {
+	win32.HeapFree(win32.GetProcessHeap(), 0, ptr);
+}
+
+
+exit :: proc(code: int) {
+	win32.ExitProcess(cast(u32)code);
+}
+
+
+
+current_thread_id :: proc() -> int {
+	return cast(int)win32.GetCurrentThreadId();
+}
+
+
+

core/sync.odin

@@ -0,0 +1,91 @@
+#import win32 "sys/windows.odin" when ODIN_OS == "windows";
+#import "atomic.odin";
+
+Semaphore :: struct {
+	handle: win32.HANDLE,
+}
+
+Mutex :: struct {
+	semaphore: Semaphore,
+	counter:   i32,
+	owner:     i32,
+	recursion: i32,
+}
+
+current_thread_id :: proc() -> i32 {
+	return cast(i32)win32.GetCurrentThreadId();
+}
+
+semaphore_init :: proc(s: ^Semaphore) {
+	s.handle = win32.CreateSemaphoreA(nil, 0, 1<<31-1, nil);
+}
+
+semaphore_destroy :: proc(s: ^Semaphore) {
+	win32.CloseHandle(s.handle);
+}
+
+semaphore_post :: proc(s: ^Semaphore, count: int) {
+	win32.ReleaseSemaphore(s.handle, cast(i32)count, nil);
+}
+
+semaphore_release :: proc(s: ^Semaphore) #inline { semaphore_post(s, 1); }
+
+semaphore_wait :: proc(s: ^Semaphore) {
+	win32.WaitForSingleObject(s.handle, win32.INFINITE);
+}
+
+
+mutex_init :: proc(m: ^Mutex) {
+	atomic.store(^m.counter, 0);
+	atomic.store(^m.owner, current_thread_id());
+	semaphore_init(^m.semaphore);
+	m.recursion = 0;
+}
+mutex_destroy :: proc(m: ^Mutex) {
+	semaphore_destroy(^m.semaphore);
+}
+mutex_lock :: proc(m: ^Mutex) {
+	thread_id := current_thread_id();
+	if atomic.fetch_add(^m.counter, 1) > 0 {
+		if thread_id != atomic.load(^m.owner) {
+			semaphore_wait(^m.semaphore);
+		}
+	}
+	atomic.store(^m.owner, thread_id);
+	m.recursion += 1;
+}
+mutex_try_lock :: proc(m: ^Mutex) -> bool {
+	thread_id := current_thread_id();
+	if atomic.load(^m.owner) == thread_id {
+		atomic.fetch_add(^m.counter, 1);
+	} else {
+		expected: i32 = 0;
+		if atomic.load(^m.counter) != 0 {
+			return false;
+		}
+		if atomic.compare_exchange(^m.counter, expected, 1) == 0 {
+			return false;
+		}
+		atomic.store(^m.owner, thread_id);
+	}
+	m.recursion += 1;
+	return true;
+}
+mutex_unlock :: proc(m: ^Mutex) {
+	recursion: i32;
+	thread_id := current_thread_id();
+	assert(thread_id == atomic.load(^m.owner));
+
+	m.recursion -= 1;
+	recursion = m.recursion;
+	if recursion == 0 {
+		atomic.store(^m.owner, thread_id);
+	}
+
+	if atomic.fetch_add(^m.counter, -1) > 1 {
+		if recursion == 0 {
+			semaphore_release(^m.semaphore);
+		}
+	}
+}
+

core/sys/windows.odin

@@ -0,0 +1,566 @@
+#foreign_system_library "kernel32.lib";
+#foreign_system_library "user32.lib";
+#foreign_system_library "gdi32.lib";
+#foreign_system_library "winmm.lib";
+#foreign_system_library "opengl32.lib";
+
+HANDLE    :: rawptr;
+HWND      :: HANDLE;
+HDC       :: HANDLE;
+HINSTANCE :: HANDLE;
+HICON     :: HANDLE;
+HCURSOR   :: HANDLE;
+HMENU     :: HANDLE;
+HBRUSH    :: HANDLE;
+HGDIOBJ   :: HANDLE;
+HMODULE   :: HANDLE;
+WPARAM    :: uint;
+LPARAM    :: int;
+LRESULT   :: int;
+ATOM      :: i16;
+BOOL      :: i32;
+WNDPROC   :: type proc(HWND, u32, WPARAM, LPARAM) -> LRESULT #cc_c;
+
+
+INVALID_HANDLE_VALUE :: cast(HANDLE)(~cast(int)0);
+
+FALSE: BOOL : 0;
+TRUE:  BOOL : 1;
+
+CS_VREDRAW    :: 0x0001;
+CS_HREDRAW    :: 0x0002;
+CS_OWNDC      :: 0x0020;
+CW_USEDEFAULT :: -0x80000000;
+
+WS_OVERLAPPED       :: 0;
+WS_MAXIMIZEBOX      :: 0x00010000;
+WS_MINIMIZEBOX      :: 0x00020000;
+WS_THICKFRAME       :: 0x00040000;
+WS_SYSMENU          :: 0x00080000;
+WS_CAPTION          :: 0x00C00000;
+WS_VISIBLE          :: 0x10000000;
+WS_OVERLAPPEDWINDOW :: WS_OVERLAPPED|WS_CAPTION|WS_SYSMENU|WS_THICKFRAME|WS_MINIMIZEBOX|WS_MAXIMIZEBOX;
+
+WM_DESTROY :: 0x0002;
+WM_CLOSE   :: 0x0010;
+WM_QUIT    :: 0x0012;
+WM_KEYDOWN :: 0x0100;
+WM_KEYUP   :: 0x0101;
+
+PM_REMOVE :: 1;
+
+COLOR_BACKGROUND :: cast(HBRUSH)(cast(int)1);
+BLACK_BRUSH :: 4;
+
+SM_CXSCREEN :: 0;
+SM_CYSCREEN :: 1;
+
+SW_SHOW :: 5;
+
+
+POINT :: struct #ordered {
+	x, y: i32,
+}
+
+WNDCLASSEXA :: struct #ordered {
+	size, style:           u32,
+	wnd_proc:              WNDPROC,
+	cls_extra, wnd_extra:  i32,
+	instance:              HINSTANCE,
+	icon:                  HICON,
+	cursor:                HCURSOR,
+	background:            HBRUSH,
+	menu_name, class_name: ^u8,
+	sm:                    HICON,
+}
+
+MSG :: struct #ordered {
+	hwnd:    HWND,
+	message: u32,
+	wparam:  WPARAM,
+	lparam:  LPARAM,
+	time:    u32,
+	pt:      POINT,
+}
+
+RECT :: struct #ordered {
+	left:   i32,
+	top:    i32,
+	right:  i32,
+	bottom: i32,
+}
+
+FILETIME :: struct #ordered {
+	lo, hi: u32,
+}
+
+SYSTEMTIME :: struct #ordered {
+	year, month: u16,
+	day_of_week, day: u16,
+	hour, minute, second, millisecond: u16,
+}
+
+BY_HANDLE_FILE_INFORMATION :: struct #ordered {
+	file_attributes:      u32,
+	creation_time,
+	last_access_time,
+	last_write_time:      FILETIME,
+	volume_serial_number,
+	file_size_high,
+	file_size_low,
+	number_of_links,
+	file_index_high,
+	file_index_low:       u32,
+}
+
+FILE_ATTRIBUTE_DATA :: struct #ordered {
+	file_attributes:  u32,
+	creation_time,
+	last_access_time,
+	last_write_time:  FILETIME,
+	file_size_high,
+	file_size_low:    u32,
+}
+
+GET_FILEEX_INFO_LEVELS :: i32;
+
+GetFileExInfoStandard: GET_FILEEX_INFO_LEVELS : 0;
+GetFileExMaxInfoLevel: GET_FILEEX_INFO_LEVELS : 1;
+
+GetLastError     :: proc() -> i32                            #foreign kernel32;
+ExitProcess      :: proc(exit_code: u32)                     #foreign kernel32;
+GetDesktopWindow :: proc() -> HWND                           #foreign user32;
+GetCursorPos     :: proc(p: ^POINT) -> i32                   #foreign user32;
+ScreenToClient   :: proc(h: HWND, p: ^POINT) -> i32          #foreign user32;
+GetModuleHandleA :: proc(module_name: ^u8) -> HINSTANCE      #foreign kernel32;
+GetStockObject   :: proc(fn_object: i32) -> HGDIOBJ          #foreign gdi32;
+PostQuitMessage  :: proc(exit_code: i32)                     #foreign user32;
+SetWindowTextA   :: proc(hwnd: HWND, c_string: ^u8) -> BOOL  #foreign user32;
+
+QueryPerformanceFrequency :: proc(result: ^i64) -> i32 #foreign kernel32;
+QueryPerformanceCounter   :: proc(result: ^i64) -> i32 #foreign kernel32;
+
+Sleep :: proc(ms: i32) -> i32 #foreign kernel32;
+
+OutputDebugStringA :: proc(c_str: ^u8) #foreign kernel32;
+
+
+RegisterClassExA :: proc(wc: ^WNDCLASSEXA) -> ATOM #foreign user32;
+CreateWindowExA  :: proc(ex_style: u32,
+                         class_name, title: ^u8,
+                         style: u32,
+                         x, y, w, h: i32,
+                         parent: HWND, menu: HMENU, instance: HINSTANCE,
+                         param: rawptr) -> HWND #foreign user32;
+
+ShowWindow       :: proc(hwnd: HWND, cmd_show: i32) -> BOOL #foreign user32;
+TranslateMessage :: proc(msg: ^MSG) -> BOOL                 #foreign user32;
+DispatchMessageA :: proc(msg: ^MSG) -> LRESULT              #foreign user32;
+UpdateWindow     :: proc(hwnd: HWND) -> BOOL                #foreign user32;
+PeekMessageA     :: proc(msg: ^MSG, hwnd: HWND,
+                         msg_filter_min, msg_filter_max, remove_msg: u32) -> BOOL #foreign user32;
+
+DefWindowProcA :: proc(hwnd: HWND, msg: u32, wparam: WPARAM, lparam: LPARAM) -> LRESULT #foreign user32;
+
+AdjustWindowRect :: proc(rect: ^RECT, style: u32, menu: BOOL) -> BOOL #foreign user32;
+GetActiveWindow  :: proc() -> HWND #foreign user32;
+
+
+GetQueryPerformanceFrequency :: proc() -> i64 {
+	r: i64;
+	QueryPerformanceFrequency(^r);
+	return r;
+}
+
+GetCommandLineA    :: proc() -> ^u8 #foreign kernel32;
+GetSystemMetrics   :: proc(index: i32) -> i32 #foreign kernel32;
+GetCurrentThreadId :: proc() -> u32 #foreign kernel32;
+
+timeGetTime             :: proc() -> u32 #foreign winmm;
+GetSystemTimeAsFileTime :: proc(system_time_as_file_time: ^FILETIME) #foreign kernel32;
+FileTimeToLocalFileTime :: proc(file_time: ^FILETIME, local_file_time: ^FILETIME) -> BOOL #foreign kernel32;
+FileTimeToSystemTime    :: proc(file_time: ^FILETIME, system_time: ^SYSTEMTIME) -> BOOL #foreign kernel32;
+SystemTimeToFileTime    :: proc(system_time: ^SYSTEMTIME, file_time: ^FILETIME) -> BOOL #foreign kernel32;
+
+// File Stuff
+
+CloseHandle  :: proc(h: HANDLE) -> i32 #foreign kernel32;
+GetStdHandle :: proc(h: i32) -> HANDLE #foreign kernel32;
+CreateFileA  :: proc(filename: ^u8, desired_access, share_mode: u32,
+                     security: rawptr,
+                     creation, flags_and_attribs: u32, template_file: HANDLE) -> HANDLE #foreign kernel32;
+ReadFile  :: proc(h: HANDLE, buf: rawptr, to_read: u32, bytes_read: ^i32, overlapped: rawptr) -> BOOL #foreign kernel32;
+WriteFile :: proc(h: HANDLE, buf: rawptr, len: i32, written_result: ^i32, overlapped: rawptr) -> BOOL #foreign kernel32;
+
+GetFileSizeEx              :: proc(file_handle: HANDLE, file_size: ^i64) -> BOOL #foreign kernel32;
+GetFileAttributesExA       :: proc(filename: ^u8, info_level_id: GET_FILEEX_INFO_LEVELS, file_info: rawptr) -> BOOL #foreign kernel32;
+GetFileInformationByHandle :: proc(file_handle: HANDLE, file_info: ^BY_HANDLE_FILE_INFORMATION) -> BOOL #foreign kernel32;
+
+GetFileType    :: proc(file_handle: HANDLE) -> u32 #foreign kernel32;
+SetFilePointer :: proc(file_handle: HANDLE, distance_to_move: i32, distance_to_move_high: ^i32, move_method: u32) -> u32 #foreign kernel32;
+
+SetHandleInformation :: proc(obj: HANDLE, mask, flags: u32) -> BOOL #foreign kernel32;
+
+HANDLE_FLAG_INHERIT :: 1;
+HANDLE_FLAG_PROTECT_FROM_CLOSE :: 2;
+
+
+FILE_BEGIN   :: 0;
+FILE_CURRENT :: 1;
+FILE_END     :: 2;
+
+FILE_SHARE_READ      :: 0x00000001;
+FILE_SHARE_WRITE     :: 0x00000002;
+FILE_SHARE_DELETE    :: 0x00000004;
+FILE_GENERIC_ALL     :: 0x10000000;
+FILE_GENERIC_EXECUTE :: 0x20000000;
+FILE_GENERIC_WRITE   :: 0x40000000;
+FILE_GENERIC_READ    :: 0x80000000;
+
+FILE_APPEND_DATA :: 0x0004;
+
+STD_INPUT_HANDLE  :: -10;
+STD_OUTPUT_HANDLE :: -11;
+STD_ERROR_HANDLE  :: -12;
+
+CREATE_NEW        :: 1;
+CREATE_ALWAYS     :: 2;
+OPEN_EXISTING     :: 3;
+OPEN_ALWAYS       :: 4;
+TRUNCATE_EXISTING :: 5;
+
+FILE_ATTRIBUTE_READONLY             :: 0x00000001;
+FILE_ATTRIBUTE_HIDDEN               :: 0x00000002;
+FILE_ATTRIBUTE_SYSTEM               :: 0x00000004;
+FILE_ATTRIBUTE_DIRECTORY            :: 0x00000010;
+FILE_ATTRIBUTE_ARCHIVE              :: 0x00000020;
+FILE_ATTRIBUTE_DEVICE               :: 0x00000040;
+FILE_ATTRIBUTE_NORMAL               :: 0x00000080;
+FILE_ATTRIBUTE_TEMPORARY            :: 0x00000100;
+FILE_ATTRIBUTE_SPARSE_FILE          :: 0x00000200;
+FILE_ATTRIBUTE_REPARSE_POINT        :: 0x00000400;
+FILE_ATTRIBUTE_COMPRESSED           :: 0x00000800;
+FILE_ATTRIBUTE_OFFLINE              :: 0x00001000;
+FILE_ATTRIBUTE_NOT_CONTENT_INDEXED  :: 0x00002000;
+FILE_ATTRIBUTE_ENCRYPTED            :: 0x00004000;
+
+FILE_TYPE_DISK :: 0x0001;
+FILE_TYPE_CHAR :: 0x0002;
+FILE_TYPE_PIPE :: 0x0003;
+
+INVALID_SET_FILE_POINTER :: ~cast(u32)0;
+
+
+
+
+HeapAlloc      :: proc (h: HANDLE, flags: u32, bytes: int) -> rawptr                 #foreign kernel32;
+HeapReAlloc    :: proc (h: HANDLE, flags: u32, memory: rawptr, bytes: int) -> rawptr #foreign kernel32;
+HeapFree       :: proc (h: HANDLE, flags: u32, memory: rawptr) -> BOOL               #foreign kernel32;
+GetProcessHeap :: proc () -> HANDLE #foreign kernel32;
+
+
+HEAP_ZERO_MEMORY :: 0x00000008;
+
+// Synchronization
+
+SECURITY_ATTRIBUTES :: struct #ordered {
+	length:              u32,
+	security_descriptor: rawptr,
+	inherit_handle:      BOOL,
+}
+
+INFINITE :: 0xffffffff;
+
+CreateSemaphoreA    :: proc(attributes: ^SECURITY_ATTRIBUTES, initial_count, maximum_count: i32, name: ^byte) -> HANDLE #foreign kernel32;
+ReleaseSemaphore    :: proc(semaphore: HANDLE, release_count: i32, previous_count: ^i32) -> BOOL #foreign kernel32;
+WaitForSingleObject :: proc(handle: HANDLE, milliseconds: u32) -> u32 #foreign kernel32;
+
+
+InterlockedCompareExchange :: proc(dst: ^i32, exchange, comparand: i32) -> i32 #foreign kernel32;
+InterlockedExchange        :: proc(dst: ^i32, desired: i32) -> i32 #foreign kernel32;
+InterlockedExchangeAdd     :: proc(dst: ^i32, desired: i32) -> i32 #foreign kernel32;
+InterlockedAnd             :: proc(dst: ^i32, desired: i32) -> i32 #foreign kernel32;
+InterlockedOr              :: proc(dst: ^i32, desired: i32) -> i32 #foreign kernel32;
+
+InterlockedCompareExchange64 :: proc(dst: ^i64, exchange, comparand: i64) -> i64 #foreign kernel32;
+InterlockedExchange64        :: proc(dst: ^i64, desired: i64) -> i64 #foreign kernel32;
+InterlockedExchangeAdd64     :: proc(dst: ^i64, desired: i64) -> i64 #foreign kernel32;
+InterlockedAnd64             :: proc(dst: ^i64, desired: i64) -> i64 #foreign kernel32;
+InterlockedOr64              :: proc(dst: ^i64, desired: i64) -> i64 #foreign kernel32;
+
+_mm_pause        :: proc() #foreign kernel32;
+ReadWriteBarrier :: proc() #foreign kernel32;
+WriteBarrier     :: proc() #foreign kernel32;
+ReadBarrier      :: proc() #foreign kernel32;
+
+
+
+BITMAPINFOHEADER :: struct #ordered {
+	size:              u32,
+	width, height:     i32,
+	planes, bit_count: i16,
+	compression:       u32,
+	size_image:        u32,
+	x_pels_per_meter:  i32,
+	y_pels_per_meter:  i32,
+	clr_used:          u32,
+	clr_important:     u32,
+}
+BITMAPINFO :: struct #ordered {
+	using header: BITMAPINFOHEADER,
+	colors:       [1]RGBQUAD,
+}
+
+
+RGBQUAD :: struct #ordered { blue, green, red, reserved: byte }
+
+BI_RGB         :: 0;
+DIB_RGB_COLORS :: 0x00;
+SRCCOPY: u32    : 0x00cc0020;
+
+
+StretchDIBits :: proc (hdc: HDC,
+                       x_dst, y_dst, width_dst, height_dst: i32,
+                       x_src, y_src, width_src, header_src: i32,
+                       bits: rawptr, bits_info: ^BITMAPINFO,
+                       usage: u32,
+                       rop: u32) -> i32 #foreign gdi32;
+
+
+
+LoadLibraryA   :: proc (c_str: ^u8) -> HMODULE #foreign kernel32;
+FreeLibrary    :: proc (h: HMODULE) #foreign kernel32;
+GetProcAddress :: proc (h: HMODULE, c_str: ^u8) -> PROC #foreign kernel32;
+
+GetClientRect :: proc(hwnd: HWND, rect: ^RECT) -> BOOL #foreign user32;
+
+// Windows OpenGL
+PFD_TYPE_RGBA             :: 0;
+PFD_TYPE_COLORINDEX       :: 1;
+PFD_MAIN_PLANE            :: 0;
+PFD_OVERLAY_PLANE         :: 1;
+PFD_UNDERLAY_PLANE        :: -1;
+PFD_DOUBLEBUFFER          :: 1;
+PFD_STEREO                :: 2;
+PFD_DRAW_TO_WINDOW        :: 4;
+PFD_DRAW_TO_BITMAP        :: 8;
+PFD_SUPPORT_GDI           :: 16;
+PFD_SUPPORT_OPENGL        :: 32;
+PFD_GENERIC_FORMAT        :: 64;
+PFD_NEED_PALETTE          :: 128;
+PFD_NEED_SYSTEM_PALETTE   :: 0x00000100;
+PFD_SWAP_EXCHANGE         :: 0x00000200;
+PFD_SWAP_COPY             :: 0x00000400;
+PFD_SWAP_LAYER_BUFFERS    :: 0x00000800;
+PFD_GENERIC_ACCELERATED   :: 0x00001000;
+PFD_DEPTH_DONTCARE        :: 0x20000000;
+PFD_DOUBLEBUFFER_DONTCARE :: 0x40000000;
+PFD_STEREO_DONTCARE       :: 0x80000000;
+
+HGLRC :: HANDLE;
+PROC  :: type proc() #cc_c;
+wglCreateContextAttribsARBType :: type proc(hdc: HDC, hshareContext: rawptr, attribList: ^i32) -> HGLRC;
+
+
+PIXELFORMATDESCRIPTOR :: struct #ordered {
+	size,
+	version,
+	flags: u32,
+
+	pixel_type,
+	color_bits,
+	red_bits,
+	red_shift,
+	green_bits,
+	green_shift,
+	blue_bits,
+	blue_shift,
+	alpha_bits,
+	alpha_shift,
+	accum_bits,
+	accum_red_bits,
+	accum_green_bits,
+	accum_blue_bits,
+	accum_alpha_bits,
+	depth_bits,
+	stencil_bits,
+	aux_buffers,
+	layer_type,
+	reserved: byte,
+
+	layer_mask,
+	visible_mask,
+	damage_mask: u32,
+}
+
+GetDC             :: proc(h: HANDLE) -> HDC #foreign user32;
+SetPixelFormat    :: proc(hdc: HDC, pixel_format: i32, pfd: ^PIXELFORMATDESCRIPTOR ) -> BOOL #foreign user32;
+ChoosePixelFormat :: proc(hdc: HDC, pfd: ^PIXELFORMATDESCRIPTOR) -> i32 #foreign user32;
+SwapBuffers       :: proc(hdc: HDC) -> BOOL #foreign user32;
+ReleaseDC         :: proc(wnd: HWND, hdc: HDC) -> i32 #foreign user32;
+
+WGL_CONTEXT_MAJOR_VERSION_ARB             :: 0x2091;
+WGL_CONTEXT_MINOR_VERSION_ARB             :: 0x2092;
+WGL_CONTEXT_PROFILE_MASK_ARB              :: 0x9126;
+WGL_CONTEXT_CORE_PROFILE_BIT_ARB          :: 0x0001;
+WGL_CONTEXT_COMPATIBILITY_PROFILE_BIT_ARB :: 0x0002;
+
+wglCreateContext  :: proc(hdc: HDC) -> HGLRC              #foreign opengl32;
+wglMakeCurrent    :: proc(hdc: HDC, hglrc: HGLRC) -> BOOL #foreign opengl32;
+wglGetProcAddress :: proc(c_str: ^u8) -> PROC             #foreign opengl32;
+wglDeleteContext  :: proc(hglrc: HGLRC) -> BOOL           #foreign opengl32;
+
+
+
+GetKeyState      :: proc(v_key: i32) -> i16 #foreign user32;
+GetAsyncKeyState :: proc(v_key: i32) -> i16 #foreign user32;
+
+is_key_down :: proc(key: Key_Code) -> bool #inline { return GetAsyncKeyState(cast(i32)key) < 0; }
+
+Key_Code :: enum i32 {
+	LBUTTON    = 0x01,
+	RBUTTON    = 0x02,
+	CANCEL     = 0x03,
+	MBUTTON    = 0x04,
+	BACK       = 0x08,
+	TAB        = 0x09,
+	CLEAR      = 0x0C,
+	RETURN     = 0x0D,
+
+	SHIFT      = 0x10,
+	CONTROL    = 0x11,
+	MENU       = 0x12,
+	PAUSE      = 0x13,
+	CAPITAL    = 0x14,
+	KANA       = 0x15,
+	HANGEUL    = 0x15,
+	HANGUL     = 0x15,
+	JUNJA      = 0x17,
+	FINAL      = 0x18,
+	HANJA      = 0x19,
+	KANJI      = 0x19,
+	ESCAPE     = 0x1B,
+	CONVERT    = 0x1C,
+	NONCONVERT = 0x1D,
+	ACCEPT     = 0x1E,
+	MODECHANGE = 0x1F,
+	SPACE      = 0x20,
+	PRIOR      = 0x21,
+	NEXT       = 0x22,
+	END        = 0x23,
+	HOME       = 0x24,
+	LEFT       = 0x25,
+	UP         = 0x26,
+	RIGHT      = 0x27,
+	DOWN       = 0x28,
+	SELECT     = 0x29,
+	PRINT      = 0x2A,
+	EXECUTE    = 0x2B,
+	SNAPSHOT   = 0x2C,
+	INSERT     = 0x2D,
+	DELETE     = 0x2E,
+	HELP       = 0x2F,
+
+	NUM0 = '0',
+	NUM1 = '1',
+	NUM2 = '2',
+	NUM3 = '3',
+	NUM4 = '4',
+	NUM5 = '5',
+	NUM6 = '6',
+	NUM7 = '7',
+	NUM8 = '8',
+	NUM9 = '9',
+	A = 'A',
+	B = 'B',
+	C = 'C',
+	D = 'D',
+	E = 'E',
+	F = 'F',
+	G = 'G',
+	H = 'H',
+	I = 'I',
+	J = 'J',
+	K = 'K',
+	L = 'L',
+	M = 'M',
+	N = 'N',
+	O = 'O',
+	P = 'P',
+	Q = 'Q',
+	R = 'R',
+	S = 'S',
+	T = 'T',
+	U = 'U',
+	V = 'V',
+	W = 'W',
+	X = 'X',
+	Y = 'Y',
+	Z = 'Z',
+
+	LWIN       = 0x5B,
+	RWIN       = 0x5C,
+	APPS       = 0x5D,
+
+	NUMPAD0    = 0x60,
+	NUMPAD1    = 0x61,
+	NUMPAD2    = 0x62,
+	NUMPAD3    = 0x63,
+	NUMPAD4    = 0x64,
+	NUMPAD5    = 0x65,
+	NUMPAD6    = 0x66,
+	NUMPAD7    = 0x67,
+	NUMPAD8    = 0x68,
+	NUMPAD9    = 0x69,
+	MULTIPLY   = 0x6A,
+	ADD        = 0x6B,
+	SEPARATOR  = 0x6C,
+	SUBTRACT   = 0x6D,
+	DECIMAL    = 0x6E,
+	DIVIDE     = 0x6F,
+
+	F1         = 0x70,
+	F2         = 0x71,
+	F3         = 0x72,
+	F4         = 0x73,
+	F5         = 0x74,
+	F6         = 0x75,
+	F7         = 0x76,
+	F8         = 0x77,
+	F9         = 0x78,
+	F10        = 0x79,
+	F11        = 0x7A,
+	F12        = 0x7B,
+	F13        = 0x7C,
+	F14        = 0x7D,
+	F15        = 0x7E,
+	F16        = 0x7F,
+	F17        = 0x80,
+	F18        = 0x81,
+	F19        = 0x82,
+	F20        = 0x83,
+	F21        = 0x84,
+	F22        = 0x85,
+	F23        = 0x86,
+	F24        = 0x87,
+
+	NUMLOCK    = 0x90,
+	SCROLL     = 0x91,
+	LSHIFT     = 0xA0,
+	RSHIFT     = 0xA1,
+	LCONTROL   = 0xA2,
+	RCONTROL   = 0xA3,
+	LMENU      = 0xA4,
+	RMENU      = 0xA5,
+	PROCESSKEY = 0xE5,
+	ATTN       = 0xF6,
+	CRSEL      = 0xF7,
+	EXSEL      = 0xF8,
+	EREOF      = 0xF9,
+	PLAY       = 0xFA,
+	ZOOM       = 0xFB,
+	NONAME     = 0xFC,
+	PA1        = 0xFD,
+	OEM_CLEAR  = 0xFE,
+}
+

core/utf8.odin

@@ -1,28 +1,44 @@
-RUNE_ERROR :: '\ufffd'
-RUNE_SELF  :: 0x80
-RUNE_BOM   :: 0xfeff
-RUNE_EOF   :: ~(0 as rune)
-MAX_RUNE   :: '\U0010ffff'
-UTF_MAX    :: 4
+RUNE_ERROR :: '\ufffd';
+RUNE_SELF  :: 0x80;
+RUNE_BOM   :: 0xfeff;
+RUNE_EOF   :: ~cast(rune)0;
+MAX_RUNE   :: '\U0010ffff';
+UTF_MAX    :: 4;
 
+SURROGATE_MIN :: 0xd800;
+SURROGATE_MAX :: 0xdfff;
 
-SURROGATE_MIN :: 0xd800
-SURROGATE_MAX :: 0xdfff
+T1 :: 0b0000_0000;
+TX :: 0b1000_0000;
+T2 :: 0b1100_0000;
+T3 :: 0b1110_0000;
+T4 :: 0b1111_0000;
+T5 :: 0b1111_1000;
 
+MASKX :: 0b0011_1111;
+MASK2 :: 0b0001_1111;
+MASK3 :: 0b0000_1111;
+MASK4 :: 0b0000_0111;
 
-Accept_Range :: struct {
-	lo, hi: u8
-}
+RUNE1_MAX :: 1<<7 - 1;
+RUNE2_MAX :: 1<<11 - 1;
+RUNE3_MAX :: 1<<16 - 1;
 
-accept_ranges := [5]Accept_Range{
+// The default lowest and highest continuation byte.
+LOCB :: 0b1000_0000;
+HICB :: 0b1011_1111;
+
+Accept_Range :: struct { lo, hi: u8 }
+
+immutable accept_ranges := [5]Accept_Range{
 	{0x80, 0xbf},
 	{0xa0, 0xbf},
 	{0x80, 0x9f},
 	{0x90, 0xbf},
 	{0x80, 0x8f},
-}
+};
 
-accept_sizes := [256]byte{
+immutable accept_sizes := [256]byte{
 	0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, // 0x00-0x0f
 	0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, // 0x10-0x1f
 	0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, // 0x20-0x2f
@@ -40,177 +56,171 @@ accept_sizes := [256]byte{
 	0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, // 0xd0-0xdf
 	0x13, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x23, 0x03, 0x03, // 0xe0-0xef
 	0x34, 0x04, 0x04, 0x04, 0x44, 0xf1, 0xf1, 0xf1, 0xf1, 0xf1, 0xf1, 0xf1, 0xf1, 0xf1, 0xf1, 0xf1, // 0xf0-0xff
-}
+};
 
-encode_rune :: proc(r_: rune) -> ([4]byte, int) {
-	r := r_
-	buf: [4]byte
-	i := r as u32
-	mask: byte : 0x3f
+encode_rune :: proc(r: rune) -> ([4]byte, int) {
+	buf: [4]byte;
+	i := cast(u32)r;
+	mask: byte : 0x3f;
 	if i <= 1<<7-1 {
-		buf[0] = r as byte
-		return buf, 1
+		buf[0] = cast(byte)r;
+		return buf, 1;
 	}
 	if i <= 1<<11-1 {
-		buf[0] = 0xc0 | (r>>6) as byte
-		buf[1] = 0x80 | (r)    as byte & mask
-		return buf, 2
+		buf[0] = 0xc0 | cast(byte)(r>>6);
+		buf[1] = 0x80 | cast(byte)r & mask;
+		return buf, 2;
 	}
 
 	// Invalid or Surrogate range
 	if i > 0x0010ffff ||
 	   (0xd800 <= i && i <= 0xdfff) {
-		r = 0xfffd
+		r = 0xfffd;
 	}
 
 	if i <= 1<<16-1 {
-		buf[0] = 0xe0 | (r>>12) as byte
-		buf[1] = 0x80 | (r>>6)  as byte & mask
-		buf[2] = 0x80 | (r)     as byte & mask
-		return buf, 3
+		buf[0] = 0xe0 | cast(byte)(r>>12);
+		buf[1] = 0x80 | cast(byte)(r>>6) & mask;
+		buf[2] = 0x80 | cast(byte)r    & mask;
+		return buf, 3;
 	}
 
-	buf[0] = 0xf0 | (r>>18) as byte
-	buf[1] = 0x80 | (r>>12) as byte & mask
-	buf[2] = 0x80 | (r>>6)  as byte & mask
-	buf[3] = 0x80 | (r)     as byte & mask
-	return buf, 4
+	buf[0] = 0xf0 | cast(byte)(r>>18);
+	buf[1] = 0x80 | cast(byte)(r>>12) & mask;
+	buf[2] = 0x80 | cast(byte)(r>>6)  & mask;
+	buf[3] = 0x80 | cast(byte)r       & mask;
+	return buf, 4;
 }
 
 decode_rune :: proc(s: string) -> (rune, int) {
-	n := s.count
+	n := s.count;
 	if n < 1 {
-		return RUNE_ERROR, 0
+		return RUNE_ERROR, 0;
 	}
-	b0 := s[0]
-	x := accept_sizes[b0]
-	if x >= 0xf0 {
-		mask := (x as rune << 31) >> 31 // all zeros or all ones
-		return (b0 as rune) &~ mask | RUNE_ERROR&mask, 1
+	s0 := s[0];
+	x := accept_sizes[s0];
+	if x >= 0xF0 {
+		mask := cast(rune)(x) << 31 >> 31; // NOTE(bill): Create 0x0000 or 0xffff.
+		return cast(rune)(s[0])&~mask | RUNE_ERROR&mask, 1;
 	}
-	size := x & 7
-	ar := accept_ranges[x>>4]
-	if n < size as int {
-		return RUNE_ERROR, 1
+	sz := x & 7;
+	accept := accept_ranges[x>>4];
+	if n < cast(int)sz {
+		return RUNE_ERROR, 1;
 	}
-	b1 := s[1]
-	if b1 < ar.lo || ar.hi < b1 {
-		return RUNE_ERROR, 1
+	b1 := s[1];
+	if b1 < accept.lo || accept.hi < b1 {
+		return RUNE_ERROR, 1;
 	}
-
-	MASK_X :: 0b00111111
-	MASK_2 :: 0b00011111
-	MASK_3 :: 0b00001111
-	MASK_4 :: 0b00000111
-
-	if size == 2 {
-		return (b0&MASK_2) as rune <<6 | (b1&MASK_X) as rune, 2
+	if sz == 2 {
+		return cast(rune)(s0&MASK2)<<6 | cast(rune)(b1&MASKX), 2;
 	}
-	b2 := s[2]
-	if b2 < 0x80 || 0xbf < b2 {
-		return RUNE_ERROR, 1
+	b2 := s[2];
+	if b2 < LOCB || HICB < b2 {
+		return RUNE_ERROR, 1;
 	}
-	if size == 3 {
-		return (b0&MASK_3) as rune <<12 | (b1&MASK_X) as rune <<6 | (b2&MASK_X) as rune, 3
+	if sz == 3 {
+		return cast(rune)(s0&MASK3)<<12 | cast(rune)(b1&MASKX)<<6 | cast(rune)(b2&MASKX), 3;
 	}
-	b3 := s[3]
-	if b3 < 0x80 || 0xbf < b3 {
-		return RUNE_ERROR, 1
+	b3 := s[3];
+	if b3 < LOCB || HICB < b3 {
+		return RUNE_ERROR, 1;
 	}
-	return (b0&MASK_4) as rune <<18 | (b1&MASK_X) as rune <<12 | (b3&MASK_X) as rune <<6 | (b3&MASK_X) as rune, 4
-
+	return cast(rune)(s0&MASK4)<<18 | cast(rune)(b1&MASKX)<<12 | cast(rune)(b2&MASKX)<<6 | cast(rune)(b3&MASKX), 4;
 }
 
 
 valid_rune :: proc(r: rune) -> bool {
 	if r < 0 {
-		return false
+		return false;
 	} else if SURROGATE_MIN <= r && r <= SURROGATE_MAX {
-		return false
+		return false;
 	} else if r > MAX_RUNE {
-		return false
+		return false;
 	}
-	return true
+	return true;
 }
 
 valid_string :: proc(s: string) -> bool {
-	n := s.count
+	n := s.count;
 	for i := 0; i < n; {
-		si := s[i]
+		si := s[i];
 		if si < RUNE_SELF { // ascii
-			i++
-			continue
+			i += 1;
+			continue;
 		}
-		x := accept_sizes[si]
+		x := accept_sizes[si];
 		if x == 0xf1 {
-			return false
+			return false;
 		}
-		size := (x & 7) as int
+		size := cast(int)(x & 7);
 		if i+size > n {
-			return false
+			return false;
 		}
-		ar := accept_ranges[x>>4]
+		ar := accept_ranges[x>>4];
 		if b := s[i+1]; b < ar.lo || ar.hi < b {
-			return false
+			return false;
 		} else if size == 2 {
 			// Okay
 		} else if b := s[i+2]; b < 0x80 || 0xbf < b {
-			return false
+			return false;
 		} else if size == 3 {
 			// Okay
 		} else if b := s[i+3]; b < 0x80 || 0xbf < b {
-			return false
+			return false;
 		}
-		i += size
+		i += size;
 	}
-	return true
+	return true;
 }
 
 rune_count :: proc(s: string) -> int {
-	count := 0
-	n := s.count
-	for i := 0; i < n; count++ {
-		si := s[i]
+	count := 0;
+	n := s.count;
+
+	for i := 0; i < n; {
+		defer count += 1;
+		si := s[i];
 		if si < RUNE_SELF { // ascii
-			i++
-			continue
+			i += 1;
+			continue;
 		}
-		x := accept_sizes[si]
+		x := accept_sizes[si];
 		if x == 0xf1 {
-			i++
-			continue
+			i += 1;
+			continue;
 		}
-		size := (x & 7) as int
+		size := cast(int)(x & 7);
 		if i+size > n {
-			i++
-			continue
+			i += 1;
+			continue;
 		}
-		ar := accept_ranges[x>>4]
+		ar := accept_ranges[x>>4];
 		if b := s[i+1]; b < ar.lo || ar.hi < b {
-			size = 1
+			size = 1;
 		} else if size == 2 {
 			// Okay
 		} else if b := s[i+2]; b < 0x80 || 0xbf < b {
-			size = 1
+			size = 1;
 		} else if size == 3 {
 			// Okay
 		} else if b := s[i+3]; b < 0x80 || 0xbf < b {
-			size = 1
+			size = 1;
 		}
-		i += size
+		i += size;
 	}
-	return count
+	return count;
 }
 
 
 rune_size :: proc(r: rune) -> int {
 	match {
-	case r < 0:          return -1
-	case r <= 1<<7  - 1: return 1
-	case r <= 1<<11 - 1: return 2
-	case SURROGATE_MIN <= r && r <= SURROGATE_MAX: return -1
-	case r <= 1<<16 - 1: return 3
-	case r <= MAX_RUNE:  return 4
+	case r < 0:          return -1;
+	case r <= 1<<7  - 1: return 1;
+	case r <= 1<<11 - 1: return 2;
+	case SURROGATE_MIN <= r && r <= SURROGATE_MAX: return -1;
+	case r <= 1<<16 - 1: return 3;
+	case r <= MAX_RUNE:  return 4;
 	}
-	return -1
+	return -1;
 }

core/win32.odin

@@ -1,495 +0,0 @@
-#foreign_system_library "user32"
-#foreign_system_library "gdi32"
-
-_:= compile_assert(ODIN_OS == "windows")
-
-HANDLE    :: type rawptr
-HWND      :: type HANDLE
-HDC       :: type HANDLE
-HINSTANCE :: type HANDLE
-HICON     :: type HANDLE
-HCURSOR   :: type HANDLE
-HMENU     :: type HANDLE
-HBRUSH    :: type HANDLE
-HGDIOBJ   :: type HANDLE
-HMODULE   :: type HANDLE
-WPARAM    :: type uint
-LPARAM    :: type int
-LRESULT   :: type int
-ATOM      :: type i16
-BOOL      :: type i32
-WNDPROC   :: type proc(hwnd: HWND, msg: u32, wparam: WPARAM, lparam: LPARAM) -> LRESULT
-
-INVALID_HANDLE_VALUE :: (-1 as int) as HANDLE
-
-CS_VREDRAW    :: 0x0001
-CS_HREDRAW    :: 0x0002
-CS_OWNDC      :: 0x0020
-CW_USEDEFAULT :: -0x80000000
-
-WS_OVERLAPPED       :: 0
-WS_MAXIMIZEBOX      :: 0x00010000
-WS_MINIMIZEBOX      :: 0x00020000
-WS_THICKFRAME       :: 0x00040000
-WS_SYSMENU          :: 0x00080000
-WS_CAPTION          :: 0x00C00000
-WS_VISIBLE          :: 0x10000000
-WS_OVERLAPPEDWINDOW :: WS_OVERLAPPED|WS_CAPTION|WS_SYSMENU|WS_THICKFRAME|WS_MINIMIZEBOX|WS_MAXIMIZEBOX
-
-WM_DESTROY :: 0x0002
-WM_CLOSE   :: 0x0010
-WM_QUIT    :: 0x0012
-WM_KEYDOWN :: 0x0100
-WM_KEYUP   :: 0x0101
-
-PM_REMOVE :: 1
-
-COLOR_BACKGROUND :: 1 as HBRUSH
-BLACK_BRUSH :: 4
-
-SM_CXSCREEN :: 0
-SM_CYSCREEN :: 1
-
-SW_SHOW :: 5
-
-POINT :: struct #ordered {
-	x, y: i32
-}
-
-
-WNDCLASSEXA :: struct #ordered {
-	size, style:           u32
-	wnd_proc:              WNDPROC
-	cls_extra, wnd_extra:  i32
-	instance:              HINSTANCE
-	icon:                  HICON
-	cursor:                HCURSOR
-	background:            HBRUSH
-	menu_name, class_name: ^u8
-	sm:                    HICON
-}
-
-MSG :: struct #ordered {
-	hwnd:    HWND
-	message: u32
-	wparam:  WPARAM
-	lparam:  LPARAM
-	time:    u32
-	pt:      POINT
-}
-
-RECT :: struct #ordered {
-	left:   i32
-	top:    i32
-	right:  i32
-	bottom: i32
-}
-
-FILETIME :: struct #ordered {
-	low_date_time, high_date_time: u32
-}
-
-BY_HANDLE_FILE_INFORMATION :: struct #ordered {
-	file_attributes:      u32
-	creation_time,
-	last_access_time,
-	last_write_time:      FILETIME
-	volume_serial_number,
-	file_size_high,
-	file_size_low,
-	number_of_links,
-	file_index_high,
-	file_index_low:       u32
-}
-
-WIN32_FILE_ATTRIBUTE_DATA :: struct #ordered {
-	file_attributes:  u32
-	creation_time,
-	last_access_time,
-	last_write_time:  FILETIME
-	file_size_high,
-	file_size_low:    u32
-}
-
-GET_FILEEX_INFO_LEVELS :: type i32
-GetFileExInfoStandard : GET_FILEEX_INFO_LEVELS : 0
-GetFileExMaxInfoLevel : GET_FILEEX_INFO_LEVELS : 1
-
-GetLastError     :: proc() -> i32                           #foreign #dll_import
-ExitProcess      :: proc(exit_code: u32)                    #foreign #dll_import
-GetDesktopWindow :: proc() -> HWND                          #foreign #dll_import
-GetCursorPos     :: proc(p: ^POINT) -> i32                  #foreign #dll_import
-ScreenToClient   :: proc(h: HWND, p: ^POINT) -> i32         #foreign #dll_import
-GetModuleHandleA :: proc(module_name: ^u8) -> HINSTANCE     #foreign #dll_import
-GetStockObject   :: proc(fn_object: i32) -> HGDIOBJ         #foreign #dll_import
-PostQuitMessage  :: proc(exit_code: i32)                    #foreign #dll_import
-SetWindowTextA   :: proc(hwnd: HWND, c_string: ^u8) -> BOOL #foreign #dll_import
-
-QueryPerformanceFrequency :: proc(result: ^i64) -> i32 #foreign #dll_import
-QueryPerformanceCounter   :: proc(result: ^i64) -> i32 #foreign #dll_import
-
-Sleep :: proc(ms: i32) -> i32 #foreign #dll_import
-
-OutputDebugStringA :: proc(c_str: ^u8) #foreign #dll_import
-
-
-RegisterClassExA :: proc(wc: ^WNDCLASSEXA) -> ATOM #foreign #dll_import
-CreateWindowExA  :: proc(ex_style: u32,
-                         class_name, title: ^u8,
-                         style: u32,
-                         x, y, w, h: i32,
-                         parent: HWND, menu: HMENU, instance: HINSTANCE,
-                         param: rawptr) -> HWND #foreign #dll_import
-
-ShowWindow       :: proc(hwnd: HWND, cmd_show: i32) -> BOOL #foreign #dll_import
-TranslateMessage :: proc(msg: ^MSG) -> BOOL                 #foreign #dll_import
-DispatchMessageA :: proc(msg: ^MSG) -> LRESULT              #foreign #dll_import
-UpdateWindow     :: proc(hwnd: HWND) -> BOOL                #foreign #dll_import
-PeekMessageA     :: proc(msg: ^MSG, hwnd: HWND,
-                         msg_filter_min, msg_filter_max, remove_msg: u32) -> BOOL #foreign #dll_import
-
-DefWindowProcA   :: proc(hwnd: HWND, msg: u32, wparam: WPARAM, lparam: LPARAM) -> LRESULT #foreign #dll_import
-
-AdjustWindowRect :: proc(rect: ^RECT, style: u32, menu: BOOL) -> BOOL #foreign #dll_import
-
-
-GetQueryPerformanceFrequency :: proc() -> i64 {
-	r: i64
-	QueryPerformanceFrequency(^r)
-	return r
-}
-
-GetCommandLineA :: proc() -> ^u8 #foreign #dll_import
-GetSystemMetrics :: proc(index: i32) -> i32 #foreign #dll_import
-GetCurrentThreadId :: proc() -> u32 #foreign #dll_import
-
-// File Stuff
-
-CloseHandle  :: proc(h: HANDLE) -> i32 #foreign #dll_import
-GetStdHandle :: proc(h: i32) -> HANDLE #foreign #dll_import
-CreateFileA  :: proc(filename: ^u8, desired_access, share_mode: u32,
-                     security: rawptr,
-                     creation, flags_and_attribs: u32, template_file: HANDLE) -> HANDLE #foreign #dll_import
-ReadFile     :: proc(h: HANDLE, buf: rawptr, to_read: u32, bytes_read: ^i32, overlapped: rawptr) -> BOOL #foreign #dll_import
-WriteFile    :: proc(h: HANDLE, buf: rawptr, len: i32, written_result: ^i32, overlapped: rawptr) -> i32 #foreign #dll_import
-
-GetFileSizeEx              :: proc(file_handle: HANDLE, file_size: ^i64) -> BOOL #foreign #dll_import
-GetFileAttributesExA       :: proc(filename: ^u8, info_level_id: GET_FILEEX_INFO_LEVELS, file_info: rawptr) -> BOOL #foreign #dll_import
-GetFileInformationByHandle :: proc(file_handle: HANDLE, file_info: ^BY_HANDLE_FILE_INFORMATION) -> BOOL #foreign #dll_import
-
-FILE_SHARE_READ      :: 0x00000001
-FILE_SHARE_WRITE     :: 0x00000002
-FILE_SHARE_DELETE    :: 0x00000004
-FILE_GENERIC_ALL     :: 0x10000000
-FILE_GENERIC_EXECUTE :: 0x20000000
-FILE_GENERIC_WRITE   :: 0x40000000
-FILE_GENERIC_READ    :: 0x80000000
-
-STD_INPUT_HANDLE  :: -10
-STD_OUTPUT_HANDLE :: -11
-STD_ERROR_HANDLE  :: -12
-
-CREATE_NEW        :: 1
-CREATE_ALWAYS     :: 2
-OPEN_EXISTING     :: 3
-OPEN_ALWAYS       :: 4
-TRUNCATE_EXISTING :: 5
-
-
-
-
-
-HeapAlloc   :: proc(h: HANDLE, flags: u32, bytes: int) -> rawptr                 #foreign #dll_import
-HeapReAlloc :: proc(h: HANDLE, flags: u32, memory: rawptr, bytes: int) -> rawptr #foreign #dll_import
-HeapFree    :: proc(h: HANDLE, flags: u32, memory: rawptr) -> BOOL               #foreign #dll_import
-GetProcessHeap :: proc() -> HANDLE #foreign #dll_import
-
-
-HEAP_ZERO_MEMORY :: 0x00000008
-
-
-
-// GDI
-
-BITMAPINFO :: struct #ordered {
-	HEADER :: struct #ordered {
-		size:              u32
-		width, height:     i32
-		planes, bit_count: i16
-		compression:       u32
-		size_image:        u32
-		x_pels_per_meter:  i32
-		y_pels_per_meter:  i32
-		clr_used:          u32
-		clr_important:     u32
-	}
-	using header: HEADER
-	colors:       [1]RGBQUAD
-}
-
-
-RGBQUAD :: struct #ordered {
-	blue, green, red, reserved: byte
-}
-
-BI_RGB         :: 0
-DIB_RGB_COLORS :: 0x00
-SRCCOPY        : u32 : 0x00cc0020
-
-StretchDIBits :: proc(hdc: HDC,
-                      x_dst, y_dst, width_dst, height_dst: i32,
-                      x_src, y_src, width_src, header_src: i32,
-                      bits: rawptr, bits_info: ^BITMAPINFO,
-                      usage: u32,
-                      rop: u32) -> i32 #foreign #dll_import
-
-
-
-LoadLibraryA   :: proc(c_str: ^u8) -> HMODULE #foreign
-FreeLibrary    :: proc(h: HMODULE) #foreign
-GetProcAddress :: proc(h: HMODULE, c_str: ^u8) -> proc() #foreign
-
-GetClientRect :: proc(hwnd: HWND, rect: ^RECT) -> BOOL #foreign
-
-
-
-// Windows OpenGL
-
-PFD_TYPE_RGBA             :: 0
-PFD_TYPE_COLORINDEX       :: 1
-PFD_MAIN_PLANE            :: 0
-PFD_OVERLAY_PLANE         :: 1
-PFD_UNDERLAY_PLANE        :: -1
-PFD_DOUBLEBUFFER          :: 1
-PFD_STEREO                :: 2
-PFD_DRAW_TO_WINDOW        :: 4
-PFD_DRAW_TO_BITMAP        :: 8
-PFD_SUPPORT_GDI           :: 16
-PFD_SUPPORT_OPENGL        :: 32
-PFD_GENERIC_FORMAT        :: 64
-PFD_NEED_PALETTE          :: 128
-PFD_NEED_SYSTEM_PALETTE   :: 0x00000100
-PFD_SWAP_EXCHANGE         :: 0x00000200
-PFD_SWAP_COPY             :: 0x00000400
-PFD_SWAP_LAYER_BUFFERS    :: 0x00000800
-PFD_GENERIC_ACCELERATED   :: 0x00001000
-PFD_DEPTH_DONTCARE        :: 0x20000000
-PFD_DOUBLEBUFFER_DONTCARE :: 0x40000000
-PFD_STEREO_DONTCARE       :: 0x80000000
-
-HGLRC :: type HANDLE
-PROC  :: type proc()
-wglCreateContextAttribsARBType :: type proc(hdc: HDC, hshareContext: rawptr, attribList: ^i32) -> HGLRC
-
-
-PIXELFORMATDESCRIPTOR :: struct #ordered {
-	size,
-	version,
-	flags: u32
-
-	pixel_type,
-	color_bits,
-	red_bits,
-	red_shift,
-	green_bits,
-	green_shift,
-	blue_bits,
-	blue_shift,
-	alpha_bits,
-	alpha_shift,
-	accum_bits,
-	accum_red_bits,
-	accum_green_bits,
-	accum_blue_bits,
-	accum_alpha_bits,
-	depth_bits,
-	stencil_bits,
-	aux_buffers,
-	layer_type,
-	reserved: byte
-
-	layer_mask,
-	visible_mask,
-	damage_mask: u32
-}
-
-GetDC             :: proc(h: HANDLE) -> HDC #foreign
-SetPixelFormat    :: proc(hdc: HDC, pixel_format: i32, pfd: ^PIXELFORMATDESCRIPTOR ) -> BOOL #foreign #dll_import
-ChoosePixelFormat :: proc(hdc: HDC, pfd: ^PIXELFORMATDESCRIPTOR) -> i32 #foreign #dll_import
-SwapBuffers       :: proc(hdc: HDC) -> BOOL #foreign #dll_import
-ReleaseDC         :: proc(wnd: HWND, hdc: HDC) -> i32 #foreign #dll_import
-
-WGL_CONTEXT_MAJOR_VERSION_ARB             :: 0x2091
-WGL_CONTEXT_MINOR_VERSION_ARB             :: 0x2092
-WGL_CONTEXT_PROFILE_MASK_ARB              :: 0x9126
-WGL_CONTEXT_CORE_PROFILE_BIT_ARB          :: 0x0001
-WGL_CONTEXT_COMPATIBILITY_PROFILE_BIT_ARB :: 0x0002
-
-wglCreateContext  :: proc(hdc: HDC) -> HGLRC #foreign #dll_import
-wglMakeCurrent    :: proc(hdc: HDC, hglrc: HGLRC) -> BOOL #foreign #dll_import
-wglGetProcAddress :: proc(c_str: ^u8) -> PROC #foreign #dll_import
-wglDeleteContext  :: proc(hglrc: HGLRC) -> BOOL #foreign #dll_import
-
-
-
-GetKeyState      :: proc(v_key: i32) -> i16 #foreign #dll_import
-GetAsyncKeyState :: proc(v_key: i32) -> i16 #foreign #dll_import
-
-is_key_down :: proc(key: Key_Code) -> bool {
-	return GetAsyncKeyState(key as i32) < 0
-}
-
-Key_Code :: enum i32 {
-	LBUTTON    = 0x01,
-	RBUTTON    = 0x02,
-	CANCEL     = 0x03,
-	MBUTTON    = 0x04,
-
-	BACK       = 0x08,
-	TAB        = 0x09,
-
-	CLEAR      = 0x0C,
-	RETURN     = 0x0D,
-
-	SHIFT      = 0x10,
-	CONTROL    = 0x11,
-	MENU       = 0x12,
-	PAUSE      = 0x13,
-	CAPITAL    = 0x14,
-
-	KANA       = 0x15,
-	HANGEUL    = 0x15,
-	HANGUL     = 0x15,
-	JUNJA      = 0x17,
-	FINAL      = 0x18,
-	HANJA      = 0x19,
-	KANJI      = 0x19,
-
-	ESCAPE     = 0x1B,
-
-	CONVERT    = 0x1C,
-	NONCONVERT = 0x1D,
-	ACCEPT     = 0x1E,
-	MODECHANGE = 0x1F,
-
-	SPACE      = 0x20,
-	PRIOR      = 0x21,
-	NEXT       = 0x22,
-	END        = 0x23,
-	HOME       = 0x24,
-	LEFT       = 0x25,
-	UP         = 0x26,
-	RIGHT      = 0x27,
-	DOWN       = 0x28,
-	SELECT     = 0x29,
-	PRINT      = 0x2A,
-	EXECUTE    = 0x2B,
-	SNAPSHOT   = 0x2C,
-	INSERT     = 0x2D,
-	DELETE     = 0x2E,
-	HELP       = 0x2F,
-
-	NUM0 = '0',
-	NUM1 = '1',
-	NUM2 = '2',
-	NUM3 = '3',
-	NUM4 = '4',
-	NUM5 = '5',
-	NUM6 = '6',
-	NUM7 = '7',
-	NUM8 = '8',
-	NUM9 = '9',
-
-	A = 'A',
-	B = 'B',
-	C = 'C',
-	D = 'D',
-	E = 'E',
-	F = 'F',
-	G = 'G',
-	H = 'H',
-	I = 'I',
-	J = 'J',
-	K = 'K',
-	L = 'L',
-	M = 'M',
-	N = 'N',
-	O = 'O',
-	P = 'P',
-	Q = 'Q',
-	R = 'R',
-	S = 'S',
-	T = 'T',
-	U = 'U',
-	V = 'V',
-	W = 'W',
-	X = 'X',
-	Y = 'Y',
-	Z = 'Z',
-
-	LWIN       = 0x5B,
-	RWIN       = 0x5C,
-	APPS       = 0x5D,
-
-	NUMPAD0    = 0x60,
-	NUMPAD1    = 0x61,
-	NUMPAD2    = 0x62,
-	NUMPAD3    = 0x63,
-	NUMPAD4    = 0x64,
-	NUMPAD5    = 0x65,
-	NUMPAD6    = 0x66,
-	NUMPAD7    = 0x67,
-	NUMPAD8    = 0x68,
-	NUMPAD9    = 0x69,
-	MULTIPLY   = 0x6A,
-	ADD        = 0x6B,
-	SEPARATOR  = 0x6C,
-	SUBTRACT   = 0x6D,
-	DECIMAL    = 0x6E,
-	DIVIDE     = 0x6F,
-	F1         = 0x70,
-	F2         = 0x71,
-	F3         = 0x72,
-	F4         = 0x73,
-	F5         = 0x74,
-	F6         = 0x75,
-	F7         = 0x76,
-	F8         = 0x77,
-	F9         = 0x78,
-	F10        = 0x79,
-	F11        = 0x7A,
-	F12        = 0x7B,
-	F13        = 0x7C,
-	F14        = 0x7D,
-	F15        = 0x7E,
-	F16        = 0x7F,
-	F17        = 0x80,
-	F18        = 0x81,
-	F19        = 0x82,
-	F20        = 0x83,
-	F21        = 0x84,
-	F22        = 0x85,
-	F23        = 0x86,
-	F24        = 0x87,
-
-	NUMLOCK    = 0x90,
-	SCROLL     = 0x91,
-
-	LSHIFT     = 0xA0,
-	RSHIFT     = 0xA1,
-	LCONTROL   = 0xA2,
-	RCONTROL   = 0xA3,
-	LMENU      = 0xA4,
-	RMENU      = 0xA5,
-	PROCESSKEY = 0xE5,
-	ATTN       = 0xF6,
-	CRSEL      = 0xF7,
-	EXSEL      = 0xF8,
-	EREOF      = 0xF9,
-	PLAY       = 0xFA,
-	ZOOM       = 0xFB,
-	NONAME     = 0xFC,
-	PA1        = 0xFD,
-	OEM_CLEAR  = 0xFE,
-}
-

roadmap.md

@@ -2,23 +2,20 @@
 
 Not in any particular order
 
-* Compile Time Execution (CTE)
-	- More metaprogramming madness
-	- Compiler as a library
-	- AST inspection and modification
-* CTE-based build system
-* Replace LLVM backend with my own custom backend
-* Improve SSA design to accommodate for lowering to a "bytecode"
-* SSA optimizations
-* Parametric Polymorphism
-* Documentation Generator for "Entities"
-* Multiple Architecture support
-* Linking Options
+* Custom backend to replace LLVM
+	- Improve SSA design to accommodate for lowering to a "bytecode"
+	- SSA optimizations
+	- COFF generation
+	- linker
+* Type safe "macros"
+* Documentation generator for "Entities"
+* Multiple architecture support
+* Inline assembly
+* Linking options
 	- Executable
 	- Static/Dynamic Library
-* Debug Information
+* Debug information
 	- pdb format too
-* Command Line Tooling
-* Compiler Internals:
+* Command line tooling
+* Compiler internals:
 	- Big numbers library
-	- Cyclic Type Checking (at the moment will cause compiler to go into an infinite loop)

src/build.c

@@ -0,0 +1,172 @@
+typedef struct BuildContext {
+	String ODIN_OS;      // target operating system
+	String ODIN_ARCH;    // target architecture
+	String ODIN_VENDOR;  // compiler vendor
+	String ODIN_VERSION; // compiler version
+	String ODIN_ROOT;    // Odin ROOT
+
+	i64    word_size;
+	i64    max_align;
+	String llc_flags;
+	String link_flags;
+	bool   is_dll;
+} BuildContext;
+
+// TODO(bill): OS dependent versions for the BuildContext
+// join_path
+// is_dir
+// is_file
+// is_abs_path
+// has_subdir
+
+String const WIN32_SEPARATOR_STRING = {cast(u8 *)"\\", 1};
+String const NIX_SEPARATOR_STRING   = {cast(u8 *)"/",  1};
+
+String odin_root_dir(void) {
+	String path = global_module_path;
+	Array(wchar_t) path_buf;
+	isize len, i;
+	gbTempArenaMemory tmp;
+	wchar_t *text;
+
+	if (global_module_path_set) {
+		return global_module_path;
+	}
+
+	array_init_count(&path_buf, heap_allocator(), 300);
+
+	len = 0;
+	for (;;) {
+		len = GetModuleFileNameW(NULL, &path_buf.e[0], path_buf.count);
+		if (len == 0) {
+			return make_string(NULL, 0);
+		}
+		if (len < path_buf.count) {
+			break;
+		}
+		array_resize(&path_buf, 2*path_buf.count + 300);
+	}
+
+	tmp = gb_temp_arena_memory_begin(&string_buffer_arena);
+
+	text = gb_alloc_array(string_buffer_allocator, wchar_t, len+1);
+
+	GetModuleFileNameW(NULL, text, len);
+	path = string16_to_string(heap_allocator(), make_string16(text, len));
+	for (i = path.len-1; i >= 0; i--) {
+		u8 c = path.text[i];
+		if (c == '/' || c == '\\') {
+			break;
+		}
+		path.len--;
+	}
+
+	global_module_path = path;
+	global_module_path_set = true;
+
+	gb_temp_arena_memory_end(tmp);
+
+	array_free(&path_buf);
+
+	return path;
+}
+
+String path_to_fullpath(gbAllocator a, String s) {
+	gbTempArenaMemory tmp = gb_temp_arena_memory_begin(&string_buffer_arena);
+	String16 string16 = string_to_string16(string_buffer_allocator, s);
+	String result = {0};
+
+	DWORD len = GetFullPathNameW(string16.text, 0, NULL, NULL);
+	if (len != 0) {
+		wchar_t *text = gb_alloc_array(string_buffer_allocator, wchar_t, len+1);
+		GetFullPathNameW(string16.text, len, text, NULL);
+		text[len] = 0;
+		result = string16_to_string(a, make_string16(text, len));
+	}
+	gb_temp_arena_memory_end(tmp);
+	return result;
+}
+
+
+String get_fullpath_relative(gbAllocator a, String base_dir, String path) {
+	String res = {0};
+	isize str_len = base_dir.len+path.len;
+
+	u8 *str = gb_alloc_array(heap_allocator(), u8, str_len+1);
+
+	isize i = 0;
+	gb_memmove(str+i, base_dir.text, base_dir.len); i += base_dir.len;
+	gb_memmove(str+i, path.text, path.len);
+	str[str_len] = '\0';
+	res = path_to_fullpath(a, make_string(str, str_len));
+	gb_free(heap_allocator(), str);
+	return res;
+}
+
+String get_fullpath_core(gbAllocator a, String path) {
+	String module_dir = odin_root_dir();
+	String res = {0};
+
+	char core[] = "core/";
+	isize core_len = gb_size_of(core)-1;
+
+	isize str_len = module_dir.len + core_len + path.len;
+	u8 *str = gb_alloc_array(heap_allocator(), u8, str_len+1);
+
+	gb_memmove(str, module_dir.text, module_dir.len);
+	gb_memmove(str+module_dir.len, core, core_len);
+	gb_memmove(str+module_dir.len+core_len, path.text, path.len);
+	str[str_len] = '\0';
+
+	res = path_to_fullpath(a, make_string(str, str_len));
+	gb_free(heap_allocator(), str);
+	return res;
+}
+
+String get_filepath_extension(String path) {
+	isize dot = 0;
+	bool seen_slash = false;
+	for (isize i = path.len-1; i >= 0; i--) {
+		u8 c = path.text[i];
+		if (c == '/' || c == '\\') {
+			seen_slash = true;
+		}
+
+		if (c == '.') {
+			if (seen_slash) {
+				return str_lit("");
+			}
+
+			dot = i;
+			break;
+		}
+	}
+	return make_string(path.text, dot);
+}
+
+
+
+void init_build_context(BuildContext *bc) {
+	bc->ODIN_VENDOR  = str_lit("odin");
+	bc->ODIN_VERSION = str_lit("0.0.5e");
+	bc->ODIN_ROOT    = odin_root_dir();
+
+#if defined(GB_SYSTEM_WINDOWS)
+	bc->ODIN_OS      = str_lit("windows");
+	bc->ODIN_ARCH    = str_lit("amd64");
+#else
+#error Implement system
+#endif
+
+	if (str_eq(bc->ODIN_ARCH, str_lit("amd64"))) {
+		bc->word_size = 8;
+		bc->max_align = 16;
+		bc->llc_flags = str_lit("-march=x86-64 ");
+		bc->link_flags = str_lit("/machine:x64 ");
+	} else if (str_eq(bc->ODIN_ARCH, str_lit("x86"))) {
+		bc->word_size = 4;
+		bc->max_align = 8;
+		bc->llc_flags = str_lit("-march=x86 ");
+		bc->link_flags = str_lit("/machine:x86 ");
+	}
+}

src/check_decl.c

@@ -1,10 +1,6 @@
 bool check_is_terminating(AstNode *node);
-void check_stmt         (Checker *c, AstNode *node, u32 flags);
-void check_stmt_list    (Checker *c, AstNodeArray stmts, u32 flags);
-void check_type_decl    (Checker *c, Entity *e, AstNode *type_expr, Type *def, CycleChecker *cycle_checker);
-void check_const_decl   (Checker *c, Entity *e, AstNode *type_expr, AstNode *init_expr);
-void check_proc_decl    (Checker *c, Entity *e, DeclInfo *d);
-void check_var_decl     (Checker *c, Entity *e, Entity **entities, isize entity_count, AstNode *type_expr, AstNode *init_expr);
+void check_stmt          (Checker *c, AstNode *node, u32 flags);
+void check_stmt_list     (Checker *c, AstNodeArray stmts, u32 flags);
 
 // NOTE(bill): `content_name` is for debugging and error messages
 Type *check_init_variable(Checker *c, Entity *e, Operand *operand, String context_name) {
@@ -16,7 +12,7 @@ Type *check_init_variable(Checker *c, Entity *e, Operand *operand, String contex
 			gbString expr_str = expr_to_string(operand->expr);
 
 			// TODO(bill): is this a good enough error message?
-			error(ast_node_token(operand->expr),
+			error_node(operand->expr,
 			      "Cannot assign builtin procedure `%s` in %.*s",
 			      expr_str,
 			      LIT(context_name));
@@ -44,6 +40,7 @@ Type *check_init_variable(Checker *c, Entity *e, Operand *operand, String contex
 			}
 			t = default_type(t);
 		}
+		GB_ASSERT(is_type_typed(t));
 		e->type = t;
 	}
 
@@ -67,6 +64,7 @@ void check_init_variables(Checker *c, Entity **lhs, isize lhs_count, AstNodeArra
 	Array(Operand) operands;
 	array_init_reserve(&operands, c->tmp_allocator, 2*lhs_count);
 
+	// TODO(bill): Allow for type hints from the entities
 	for_array(i, inits) {
 		AstNode *rhs = inits.e[i];
 		Operand o = {0};
@@ -96,125 +94,21 @@ void check_init_variables(Checker *c, Entity **lhs, isize lhs_count, AstNodeArra
 	}
 
 	if (rhs_count > 0 && lhs_count != rhs_count) {
-		error(lhs[0]->token, "Assignment count mismatch `%td` := `%td`", lhs_count, rhs_count);
+		error(lhs[0]->token, "Assignment count mismatch `%td` = `%td`", lhs_count, rhs_count);
 	}
 
+#if 0
+	if (lhs[0]->kind == Entity_Variable &&
+	    lhs[0]->Variable.is_let) {
+		if (lhs_count != rhs_count) {
+			error(lhs[0]->token, "`let` variables must be initialized, `%td` = `%td`", lhs_count, rhs_count);
+		}
+	}
+#endif
+
 	gb_temp_arena_memory_end(tmp);
 }
 
-
-
-void check_entity_decl(Checker *c, Entity *e, DeclInfo *d, Type *named_type, CycleChecker *cycle_checker) {
-	if (e->type != NULL) {
-		return;
-	}
-
-	if (d == NULL) {
-		DeclInfo **found = map_decl_info_get(&c->info.entities, hash_pointer(e));
-		if (found) {
-			d = *found;
-		} else {
-			e->type = t_invalid;
-			set_base_type(named_type, t_invalid);
-			return;
-			// GB_PANIC("`%.*s` should been declared!", LIT(e->token.string));
-		}
-	}
-
-	if (e->kind == Entity_Procedure) {
-		check_proc_decl(c, e, d);
-		return;
-	}
-	CheckerContext prev = c->context;
-	c->context.scope = d->scope;
-	c->context.decl  = d;
-
-	switch (e->kind) {
-	case Entity_Constant:
-		check_const_decl(c, e, d->type_expr, d->init_expr);
-		break;
-	case Entity_Variable:
-		check_var_decl(c, e, d->entities, d->entity_count, d->type_expr, d->init_expr);
-		break;
-	case Entity_TypeName:
-		check_type_decl(c, e, d->type_expr, named_type, cycle_checker);
-		break;
-	}
-
-	c->context = prev;
-}
-
-
-
-void check_var_decl_node(Checker *c, AstNode *node) {
-	ast_node(vd, VarDecl, node);
-	isize entity_count = vd->names.count;
-	isize entity_index = 0;
-	Entity **entities = gb_alloc_array(c->allocator, Entity *, entity_count);
-
-	for_array(i, vd->names) {
-		AstNode *name = vd->names.e[i];
-		Entity *entity = NULL;
-		if (name->kind == AstNode_Ident) {
-			Token token = name->Ident;
-			String str = token.string;
-			Entity *found = NULL;
-			// NOTE(bill): Ignore assignments to `_`
-			if (str_ne(str, str_lit("_"))) {
-				found = current_scope_lookup_entity(c->context.scope, str);
-			}
-			if (found == NULL) {
-				entity = make_entity_variable(c->allocator, c->context.scope, token, NULL);
-				add_entity_definition(&c->info, name, entity);
-			} else {
-				TokenPos pos = found->token.pos;
-				error(token,
-				      "Redeclaration of `%.*s` in this scope\n"
-				      "\tat %.*s(%td:%td)",
-				      LIT(str), LIT(pos.file), pos.line, pos.column);
-				entity = found;
-			}
-		} else {
-			error(ast_node_token(name), "A variable declaration must be an identifier");
-		}
-		if (entity == NULL) {
-			entity = make_entity_dummy_variable(c->allocator, c->global_scope, ast_node_token(name));
-		}
-		entities[entity_index++] = entity;
-	}
-
-	Type *init_type = NULL;
-	if (vd->type) {
-		init_type = check_type_extra(c, vd->type, NULL, NULL);
-		if (init_type == NULL)
-			init_type = t_invalid;
-	}
-
-	for (isize i = 0; i < entity_count; i++) {
-		Entity *e = entities[i];
-		GB_ASSERT(e != NULL);
-		if (e->flags & EntityFlag_Visited) {
-			e->type = t_invalid;
-			continue;
-		}
-		e->flags |= EntityFlag_Visited;
-
-		if (e->type == NULL)
-			e->type = init_type;
-	}
-
-	check_init_variables(c, entities, entity_count, vd->values, str_lit("variable declaration"));
-
-	for_array(i, vd->names) {
-		if (entities[i] != NULL) {
-			add_entity(c, c->context.scope, vd->names.e[i], entities[i]);
-		}
-	}
-
-}
-
-
-
 void check_init_constant(Checker *c, Entity *e, Operand *operand) {
 	if (operand->mode == Addressing_Invalid ||
 	    operand->type == t_invalid ||
@@ -227,23 +121,23 @@ void check_init_constant(Checker *c, Entity *e, Operand *operand) {
 
 	if (operand->mode != Addressing_Constant) {
 		// TODO(bill): better error
-		error(ast_node_token(operand->expr),
-		      "`%.*s` is not a constant", LIT(ast_node_token(operand->expr).string));
+		gbString str = expr_to_string(operand->expr);
+		error_node(operand->expr, "`%s` is not a constant", str);
+		gb_string_free(str);
+		if (e->type == NULL) {
+			e->type = t_invalid;
+		}
+		return;
+	}
+	if (!is_type_constant_type(operand->type)) {
+		gbString type_str = type_to_string(operand->type);
+		error_node(operand->expr, "Invalid constant type: `%s`", type_str);
+		gb_string_free(type_str);
 		if (e->type == NULL) {
 			e->type = t_invalid;
 		}
 		return;
 	}
-	// if (!is_type_constant_type(operand->type)) {
-	// 	gbString type_str = type_to_string(operand->type);
-	// 	defer (gb_string_free(type_str));
-	// 	error(ast_node_token(operand->expr),
-	// 	      "Invalid constant type: `%s`", type_str);
-	// 	if (e->type == NULL) {
-	// 		e->type = t_invalid;
-	// 	}
-	// 	return;
-	// }
 
 	if (e->type == NULL) { // NOTE(bill): type inference
 		e->type = operand->type;
@@ -257,9 +151,27 @@ void check_init_constant(Checker *c, Entity *e, Operand *operand) {
 	e->Constant.value = operand->value;
 }
 
-
-void check_const_decl(Checker *c, Entity *e, AstNode *type_expr, AstNode *init_expr) {
+void check_type_decl(Checker *c, Entity *e, AstNode *type_expr, Type *def) {
 	GB_ASSERT(e->type == NULL);
+	Type *named = make_type_named(c->allocator, e->token.string, NULL, e);
+	named->Named.type_name = e;
+	if (def != NULL && def->kind == Type_Named) {
+		def->Named.base = named;
+	}
+	e->type = named;
+
+	// gb_printf_err("%.*s %p\n", LIT(e->token.string), e);
+
+	Type *bt = check_type_extra(c, type_expr, named);
+	named->Named.base = base_type(bt);
+	if (named->Named.base == t_invalid) {
+		// gb_printf("check_type_decl: %s\n", type_to_string(named));
+	}
+}
+
+void check_const_decl(Checker *c, Entity *e, AstNode *type_expr, AstNode *init, Type *named_type) {
+	GB_ASSERT(e->type == NULL);
+	GB_ASSERT(e->kind == Entity_Constant);
 
 	if (e->flags & EntityFlag_Visited) {
 		e->type = t_invalid;
@@ -269,47 +181,37 @@ void check_const_decl(Checker *c, Entity *e, AstNode *type_expr, AstNode *init_e
 
 	if (type_expr) {
 		Type *t = check_type(c, type_expr);
-		// if (!is_type_constant_type(t)) {
-		// 	gbString str = type_to_string(t);
-		// 	defer (gb_string_free(str));
-		// 	error(ast_node_token(type_expr),
-		// 	      "Invalid constant type `%s`", str);
-		// 	e->type = t_invalid;
-		// 	return;
-		// }
+		if (!is_type_constant_type(t)) {
+			gbString str = type_to_string(t);
+			error_node(type_expr, "Invalid constant type `%s`", str);
+			gb_string_free(str);
+			e->type = t_invalid;
+			return;
+		}
 		e->type = t;
 	}
 
 	Operand operand = {0};
-	if (init_expr) {
-		check_expr(c, &operand, init_expr);
+	if (init != NULL) {
+		check_expr_or_type(c, &operand, init);
 	}
+	if (operand.mode == Addressing_Type) {
+		e->kind = Entity_TypeName;
+
+		DeclInfo *d = c->context.decl;
+		d->type_expr = d->init_expr;
+		check_type_decl(c, e, d->type_expr, named_type);
+		return;
+	}
+
 	check_init_constant(c, e, &operand);
+
+	if (operand.mode == Addressing_Invalid ||
+	    base_type(operand.type) == t_invalid) {
+		error(e->token, "Invalid declaration type");
+	}
 }
 
-void check_type_decl(Checker *c, Entity *e, AstNode *type_expr, Type *def, CycleChecker *cycle_checker) {
-	GB_ASSERT(e->type == NULL);
-	Type *named = make_type_named(c->allocator, e->token.string, NULL, e);
-	named->Named.type_name = e;
-	if (def != NULL && def->kind == Type_Named) {
-		def->Named.base = named;
-	}
-	e->type = named;
-
-	CycleChecker local_cycle_checker = {0};
-	if (cycle_checker == NULL) {
-		cycle_checker = &local_cycle_checker;
-	}
-
-	Type *bt = check_type_extra(c, type_expr, named, cycle_checker_add(cycle_checker, e));
-	named->Named.base = bt;
-	named->Named.base = base_type(named->Named.base);
-	if (named->Named.base == t_invalid) {
-		gb_printf("check_type_decl: %s\n", type_to_string(named));
-	}
-
-	cycle_checker_destroy(&local_cycle_checker);
-}
 
 
 bool are_signatures_similar_enough(Type *a_, Type *b_) {
@@ -350,18 +252,24 @@ bool are_signatures_similar_enough(Type *a_, Type *b_) {
 	return true;
 }
 
-void check_proc_decl(Checker *c, Entity *e, DeclInfo *d) {
+void check_proc_lit(Checker *c, Entity *e, DeclInfo *d) {
 	GB_ASSERT(e->type == NULL);
+	if (d->proc_lit->kind != AstNode_ProcLit) {
+		// TOOD(bill): Better error message
+		error_node(d->proc_lit, "Expected a procedure to check");
+		return;
+	}
 
-	Type *proc_type = make_type_proc(c->allocator, e->scope, NULL, 0, NULL, 0, false);
+	Type *proc_type = make_type_proc(c->allocator, e->scope, NULL, 0, NULL, 0, false, ProcCC_Odin);
 	e->type = proc_type;
-	ast_node(pd, ProcDecl, d->proc_decl);
+	ast_node(pd, ProcLit, d->proc_lit);
 
 	check_open_scope(c, pd->type);
 	check_procedure_type(c, proc_type, pd->type);
 
 	bool is_foreign      = (pd->tags & ProcTag_foreign)   != 0;
 	bool is_link_name    = (pd->tags & ProcTag_link_name) != 0;
+	bool is_export       = (pd->tags & ProcTag_export)    != 0;
 	bool is_inline       = (pd->tags & ProcTag_inline)    != 0;
 	bool is_no_inline    = (pd->tags & ProcTag_no_inline) != 0;
 
@@ -370,31 +278,36 @@ void check_proc_decl(Checker *c, Entity *e, DeclInfo *d) {
 		if (proc_type != NULL) {
 			TypeProc *pt = &proc_type->Proc;
 			if (pt->param_count != 0 ||
-			    pt->result_count) {
+			    pt->result_count != 0) {
 				gbString str = type_to_string(proc_type);
-				error(e->token,
-				      "Procedure type of `main` was expected to be `proc()`, got %s", str);
+				error(e->token, "Procedure type of `main` was expected to be `proc()`, got %s", str);
 				gb_string_free(str);
 			}
 		}
 	}
 
 	if (is_inline && is_no_inline) {
-		error(ast_node_token(pd->type),
-		      "You cannot apply both `inline` and `no_inline` to a procedure");
+		error_node(pd->type, "You cannot apply both `inline` and `no_inline` to a procedure");
 	}
 
 	if (is_foreign && is_link_name) {
-		error(ast_node_token(pd->type),
-		      "You cannot apply both `foreign` and `link_name` to a procedure");
+		error_node(pd->type, "You cannot apply both `foreign` and `link_name` to a procedure");
+	} else if (is_foreign && is_export) {
+		error_node(pd->type, "You cannot apply both `foreign` and `export` to a procedure");
 	}
 
+
 	if (pd->body != NULL) {
 		if (is_foreign) {
-			error(ast_node_token(pd->body),
-			      "A procedure tagged as `#foreign` cannot have a body");
+			error_node(pd->body, "A procedure tagged as `#foreign` cannot have a body");
 		}
 
+		// TODO(bill): Is this the best option? What about passing to external shit?!
+		// if (proc_type->Proc.calling_convention != ProcCC_Odin) {
+		// 	error_node(d->proc_lit, "An internal procedure may only have the Odin calling convention");
+		// 	proc_type->Proc.calling_convention = ProcCC_Odin;
+		// }
+
 		d->scope = c->context.scope;
 
 		GB_ASSERT(pd->body->kind == AstNode_BlockStmt);
@@ -403,11 +316,37 @@ void check_proc_decl(Checker *c, Entity *e, DeclInfo *d) {
 
 	if (is_foreign) {
 		MapEntity *fp = &c->info.foreign_procs;
-		AstNodeProcDecl *proc_decl = &d->proc_decl->ProcDecl;
-		String name = proc_decl->name->Ident.string;
-		if (proc_decl->foreign_name.len > 0) {
-			name = proc_decl->foreign_name;
+		String name = e->token.string;
+		if (pd->foreign_name.len > 0) {
+			name = pd->foreign_name;
 		}
+
+		AstNode *foreign_library = d->proc_lit->ProcLit.foreign_library;
+		if (foreign_library == NULL) {
+			error(e->token, "#foreign procedures must declare which library they are from");
+		} else if (foreign_library->kind != AstNode_Ident) {
+			error_node(foreign_library, "#foreign library names must be an identifier");
+		} else {
+			String name = foreign_library->Ident.string;
+			Entity *found = scope_lookup_entity(c->context.scope, name);
+			if (found == NULL) {
+				if (str_eq(name, str_lit("_"))) {
+					error_node(foreign_library, "`_` cannot be used as a value type");
+				} else {
+					error_node(foreign_library, "Undeclared name: %.*s", LIT(name));
+				}
+			} else if (found->kind != Entity_LibraryName) {
+				error_node(foreign_library, "`_` cannot be used as a library name");
+			} else {
+				// TODO(bill): Extra stuff to do with library names?
+				e->Procedure.foreign_library = found;
+				add_entity_use(c, foreign_library, found);
+			}
+		}
+
+		e->Procedure.is_foreign = true;
+		e->Procedure.foreign_name = name;
+
 		HashKey key = hash_string(name);
 		Entity **found = map_entity_get(fp, key);
 		if (found) {
@@ -416,30 +355,38 @@ void check_proc_decl(Checker *c, Entity *e, DeclInfo *d) {
 			Type *this_type = base_type(e->type);
 			Type *other_type = base_type(f->type);
 			if (!are_signatures_similar_enough(this_type, other_type)) {
-				error(ast_node_token(d->proc_decl),
-				      "Redeclaration of #foreign procedure `%.*s` with different type signatures\n"
-				      "\tat %.*s(%td:%td)",
-				      LIT(name), LIT(pos.file), pos.line, pos.column);
+				error_node(d->proc_lit,
+				           "Redeclaration of #foreign procedure `%.*s` with different type signatures\n"
+				           "\tat %.*s(%td:%td)",
+				           LIT(name), LIT(pos.file), pos.line, pos.column);
 			}
 		} else {
 			map_entity_set(fp, key, e);
 		}
-	} else if (is_link_name) {
-		MapEntity *fp = &c->info.foreign_procs;
-		AstNodeProcDecl *proc_decl = &d->proc_decl->ProcDecl;
-		String name = proc_decl->link_name;
+	} else {
+		String name = e->token.string;
+		if (is_link_name) {
+			name = pd->link_name;
+		}
 
-		HashKey key = hash_string(name);
-		Entity **found = map_entity_get(fp, key);
-		if (found) {
-			Entity *f = *found;
-			TokenPos pos = f->token.pos;
-			error(ast_node_token(d->proc_decl),
-			      "Non unique #link_name for procedure `%.*s`\n"
-			      "\tother at %.*s(%td:%td)",
-			      LIT(name), LIT(pos.file), pos.line, pos.column);
-		} else {
-			map_entity_set(fp, key, e);
+		if (is_link_name || is_export) {
+			MapEntity *fp = &c->info.foreign_procs;
+
+			e->Procedure.link_name = name;
+
+			HashKey key = hash_string(name);
+			Entity **found = map_entity_get(fp, key);
+			if (found) {
+				Entity *f = *found;
+				TokenPos pos = f->token.pos;
+				// TODO(bill): Better error message?
+				error_node(d->proc_lit,
+				           "Non unique linking name for procedure `%.*s`\n"
+				           "\tother at %.*s(%td:%td)",
+				           LIT(name), LIT(pos.file), pos.line, pos.column);
+			} else {
+				map_entity_set(fp, key, e);
+			}
 		}
 	}
 
@@ -456,12 +403,14 @@ void check_var_decl(Checker *c, Entity *e, Entity **entities, isize entity_count
 	}
 	e->flags |= EntityFlag_Visited;
 
-	if (type_expr != NULL)
-		e->type = check_type_extra(c, type_expr, NULL, NULL);
+	if (type_expr != NULL) {
+		e->type = check_type_extra(c, type_expr, NULL);
+	}
 
 	if (init_expr == NULL) {
-		if (type_expr == NULL)
+		if (type_expr == NULL) {
 			e->type = t_invalid;
+		}
 		return;
 	}
 
@@ -473,8 +422,9 @@ void check_var_decl(Checker *c, Entity *e, Entity **entities, isize entity_count
 	}
 
 	if (type_expr != NULL) {
-		for (isize i = 0; i < entity_count; i++)
+		for (isize i = 0; i < entity_count; i++) {
 			entities[i]->type = e->type;
+		}
 	}
 
 	AstNodeArray inits;
@@ -483,12 +433,65 @@ void check_var_decl(Checker *c, Entity *e, Entity **entities, isize entity_count
 	check_init_variables(c, entities, entity_count, inits, str_lit("variable declaration"));
 }
 
+
+void check_entity_decl(Checker *c, Entity *e, DeclInfo *d, Type *named_type) {
+	if (e->type != NULL) {
+		return;
+	}
+
+	if (d == NULL) {
+		DeclInfo **found = map_decl_info_get(&c->info.entities, hash_pointer(e));
+		if (found) {
+			d = *found;
+		} else {
+			// TODO(bill): Err here?
+			e->type = t_invalid;
+			set_base_type(named_type, t_invalid);
+			return;
+			// GB_PANIC("`%.*s` should been declared!", LIT(e->token.string));
+		}
+	}
+
+	CheckerContext prev = c->context;
+	c->context.scope = d->scope;
+	c->context.decl  = d;
+
+	switch (e->kind) {
+	case Entity_Variable:
+		check_var_decl(c, e, d->entities, d->entity_count, d->type_expr, d->init_expr);
+		break;
+	case Entity_Constant:
+		check_const_decl(c, e, d->type_expr, d->init_expr, named_type);
+		break;
+	case Entity_TypeName:
+		check_type_decl(c, e, d->type_expr, named_type);
+		break;
+	case Entity_Procedure:
+		check_proc_lit(c, e, d);
+		break;
+	}
+
+	c->context = prev;
+}
+
+
+
 void check_proc_body(Checker *c, Token token, DeclInfo *decl, Type *type, AstNode *body) {
 	GB_ASSERT(body->kind == AstNode_BlockStmt);
 
+	String proc_name = {0};
+	if (token.kind == Token_Ident) {
+		proc_name = token.string;
+	} else {
+		// TODO(bill): Better name
+		proc_name = str_lit("(anonymous-procedure)");
+	}
+
 	CheckerContext old_context = c->context;
 	c->context.scope = decl->scope;
 	c->context.decl = decl;
+	c->context.proc_name = proc_name;
+
 
 	GB_ASSERT(type->kind == Type_Proc);
 	if (type->Proc.param_count > 0) {
@@ -499,6 +502,7 @@ void check_proc_body(Checker *c, Token token, DeclInfo *decl, Type *type, AstNod
 			if (!(e->flags & EntityFlag_Anonymous)) {
 				continue;
 			}
+			bool is_immutable = e->Variable.is_immutable;
 			String name = e->token.string;
 			Type *t = base_type(type_deref(e->type));
 			if (is_type_struct(t) || is_type_raw_union(t)) {
@@ -508,6 +512,7 @@ void check_proc_body(Checker *c, Token token, DeclInfo *decl, Type *type, AstNod
 					Entity *f = (*found)->elements.entries.e[i].value;
 					if (f->kind == Entity_Variable) {
 						Entity *uvar = make_entity_using_variable(c->allocator, e, f->token, f->type);
+						uvar->Variable.is_immutable = is_immutable;
 						Entity *prev = scope_insert_entity(c->context.scope, uvar);
 						if (prev != NULL) {
 							error(e->token, "Namespace collision while `using` `%.*s` of: %.*s", LIT(name), LIT(prev->token.string));
@@ -525,11 +530,14 @@ void check_proc_body(Checker *c, Token token, DeclInfo *decl, Type *type, AstNod
 	push_procedure(c, type);
 	{
 		ast_node(bs, BlockStmt, body);
-		// TODO(bill): Check declarations first (except mutable variable declarations)
 		check_stmt_list(c, bs->stmts, 0);
 		if (type->Proc.result_count > 0) {
 			if (!check_is_terminating(body)) {
-				error(bs->close, "Missing return statement at the end of the procedure");
+				if (token.kind == Token_Ident) {
+					error(bs->close, "Missing return statement at the end of the procedure `%.*s`", LIT(token.string));
+				} else {
+					error(bs->close, "Missing return statement at the end of the procedure");
+				}
 			}
 		}
 	}

src/common.c

@@ -12,72 +12,18 @@ gbAllocator heap_allocator(void) {
 gb_global String global_module_path = {0};
 gb_global bool global_module_path_set = false;
 
+gb_global gbScratchMemory scratch_memory = {0};
 
-String get_module_dir() {
-	String path = global_module_path;
-	Array(wchar_t) path_buf;
-	isize len, i;
-	gbTempArenaMemory tmp;
-	wchar_t *text;
-
-	if (global_module_path_set) {
-		return global_module_path;
-	}
-
-	array_init_count(&path_buf, heap_allocator(), 300);
-
-	len = 0;
-	for (;;) {
-		len = GetModuleFileNameW(NULL, &path_buf.e[0], path_buf.count);
-		if (len == 0) {
-			return make_string(NULL, 0);
-		}
-		if (len < path_buf.count) {
-			break;
-		}
-		array_resize(&path_buf, 2*path_buf.count + 300);
-	}
-
-	tmp = gb_temp_arena_memory_begin(&string_buffer_arena);
-
-	text = gb_alloc_array(string_buffer_allocator, wchar_t, len+1);
-
-	GetModuleFileNameW(NULL, text, len);
-	path = string16_to_string(heap_allocator(), make_string16(text, len));
-	for (i = path.len-1; i >= 0; i--) {
-		u8 c = path.text[i];
-		if (c == '/' || c == '\\') {
-			break;
-		}
-		path.len--;
-	}
-
-	global_module_path = path;
-	global_module_path_set = true;
-
-	gb_temp_arena_memory_end(tmp);
-
-	array_free(&path_buf);
-
-	return path;
+void init_scratch_memory(isize size) {
+	void *memory = gb_alloc(heap_allocator(), size);
+	gb_scratch_memory_init(&scratch_memory, memory, size);
 }
 
-String path_to_fullpath(gbAllocator a, String s) {
-	gbTempArenaMemory tmp = gb_temp_arena_memory_begin(&string_buffer_arena);
-	String16 string16 = string_to_string16(string_buffer_allocator, s);
-	String result = {0};
-
-	DWORD len = GetFullPathNameW(string16.text, 0, NULL, NULL);
-	if (len != 0) {
-		wchar_t *text = gb_alloc_array(string_buffer_allocator, wchar_t, len+1);
-		GetFullPathNameW(string16.text, len, text, NULL);
-		text[len] = 0;
-		result = string16_to_string(a, make_string16(text, len));
-	}
-	gb_temp_arena_memory_end(tmp);
-	return result;
+gbAllocator scratch_allocator(void) {
+	return gb_scratch_allocator(&scratch_memory);
 }
 
+
 i64 next_pow2(i64 n) {
 	if (n <= 0) {
 		return 0;

src/entity.c

@@ -12,6 +12,7 @@ typedef enum ImplicitValueId ImplicitValueId;
 	ENTITY_KIND(Procedure) \
 	ENTITY_KIND(Builtin) \
 	ENTITY_KIND(ImportName) \
+	ENTITY_KIND(LibraryName) \
 	ENTITY_KIND(Nil) \
 	ENTITY_KIND(ImplicitValue) \
 	ENTITY_KIND(Count)
@@ -35,8 +36,16 @@ typedef enum EntityFlag {
 	EntityFlag_Field      = 1<<3,
 	EntityFlag_Param      = 1<<4,
 	EntityFlag_VectorElem = 1<<5,
+	EntityFlag_Ellipsis   = 1<<6,
+	EntityFlag_NoAlias    = 1<<7,
 } EntityFlag;
 
+typedef enum OverloadKind {
+	Overload_No      = -1,
+	Overload_Unknown = 0,
+	Overload_Yes     = +1,
+} OverloadKind;
+
 typedef struct Entity Entity;
 struct Entity {
 	EntityKind kind;
@@ -55,11 +64,20 @@ struct Entity {
 			ExactValue value;
 		} Constant;
 		struct {
-			i32 field_index;
-			i32 field_src_index;
+			i32  field_index;
+			i32  field_src_index;
+			bool is_immutable;
+			bool is_thread_local;
 		} Variable;
 		i32 TypeName;
-		i32 Procedure;
+		struct {
+			bool         is_foreign;
+			String       foreign_name;
+			Entity *     foreign_library;
+			String       link_name;
+			u64          tags;
+			OverloadKind overload_kind;
+		} Procedure;
 		struct {
 			BuiltinProcId id;
 		} Builtin;
@@ -67,8 +85,13 @@ struct Entity {
 			String path;
 			String name;
 			Scope *scope;
-			bool    used;
+			bool   used;
 		} ImportName;
+		struct {
+			String path;
+			String name;
+			bool   used;
+		} LibraryName;
 		i32 Nil;
 		struct {
 			// TODO(bill): Should this be a user-level construct rather than compiler-level?
@@ -78,6 +101,7 @@ struct Entity {
 	};
 };
 
+
 Entity *alloc_entity(gbAllocator a, EntityKind kind, Scope *scope, Token token, Type *type) {
 	Entity *entity = gb_alloc_item(a, Entity);
 	entity->kind   = kind;
@@ -87,13 +111,15 @@ Entity *alloc_entity(gbAllocator a, EntityKind kind, Scope *scope, Token token,
 	return entity;
 }
 
-Entity *make_entity_variable(gbAllocator a, Scope *scope, Token token, Type *type) {
+Entity *make_entity_variable(gbAllocator a, Scope *scope, Token token, Type *type, bool is_immutable) {
 	Entity *entity = alloc_entity(a, Entity_Variable, scope, token, type);
+	entity->Variable.is_immutable = is_immutable;
 	return entity;
 }
 
 Entity *make_entity_using_variable(gbAllocator a, Entity *parent, Token token, Type *type) {
 	GB_ASSERT(parent != NULL);
+	token.pos = parent->token.pos;
 	Entity *entity = alloc_entity(a, Entity_Variable, parent->scope, token, type);
 	entity->using_parent = parent;
 	entity->flags |= EntityFlag_Anonymous;
@@ -112,16 +138,16 @@ Entity *make_entity_type_name(gbAllocator a, Scope *scope, Token token, Type *ty
 	return entity;
 }
 
-Entity *make_entity_param(gbAllocator a, Scope *scope, Token token, Type *type, bool anonymous) {
-	Entity *entity = make_entity_variable(a, scope, token, type);
+Entity *make_entity_param(gbAllocator a, Scope *scope, Token token, Type *type, bool anonymous, bool is_immutable) {
+	Entity *entity = make_entity_variable(a, scope, token, type, is_immutable);
 	entity->flags |= EntityFlag_Used;
-	entity->flags |= EntityFlag_Anonymous*(anonymous != 0);
+	if (anonymous) entity->flags |= EntityFlag_Anonymous;
 	entity->flags |= EntityFlag_Param;
 	return entity;
 }
 
 Entity *make_entity_field(gbAllocator a, Scope *scope, Token token, Type *type, bool anonymous, i32 field_src_index) {
-	Entity *entity = make_entity_variable(a, scope, token, type);
+	Entity *entity = make_entity_variable(a, scope, token, type, false);
 	entity->Variable.field_src_index = field_src_index;
 	entity->Variable.field_index = field_src_index;
 	entity->flags |= EntityFlag_Field;
@@ -130,7 +156,7 @@ Entity *make_entity_field(gbAllocator a, Scope *scope, Token token, Type *type,
 }
 
 Entity *make_entity_vector_elem(gbAllocator a, Scope *scope, Token token, Type *type, i32 field_src_index) {
-	Entity *entity = make_entity_variable(a, scope, token, type);
+	Entity *entity = make_entity_variable(a, scope, token, type, false);
 	entity->Variable.field_src_index = field_src_index;
 	entity->Variable.field_index = field_src_index;
 	entity->flags |= EntityFlag_Field;
@@ -138,8 +164,9 @@ Entity *make_entity_vector_elem(gbAllocator a, Scope *scope, Token token, Type *
 	return entity;
 }
 
-Entity *make_entity_procedure(gbAllocator a, Scope *scope, Token token, Type *signature_type) {
+Entity *make_entity_procedure(gbAllocator a, Scope *scope, Token token, Type *signature_type, u64 tags) {
 	Entity *entity = alloc_entity(a, Entity_Procedure, scope, token, signature_type);
+	entity->Procedure.tags = tags;
 	return entity;
 }
 
@@ -158,6 +185,14 @@ Entity *make_entity_import_name(gbAllocator a, Scope *scope, Token token, Type *
 	return entity;
 }
 
+Entity *make_entity_library_name(gbAllocator a, Scope *scope, Token token, Type *type,
+                                 String path, String name) {
+	Entity *entity = alloc_entity(a, Entity_LibraryName, scope, token, type);
+	entity->LibraryName.path = path;
+	entity->LibraryName.name = name;
+	return entity;
+}
+
 Entity *make_entity_nil(gbAllocator a, String name, Type *type) {
 	Token token = make_token_ident(name);
 	Entity *entity = alloc_entity(a, Entity_Nil, NULL, token, type);
@@ -172,8 +207,8 @@ Entity *make_entity_implicit_value(gbAllocator a, String name, Type *type, Impli
 }
 
 
-Entity *make_entity_dummy_variable(gbAllocator a, Scope *file_scope, Token token) {
+Entity *make_entity_dummy_variable(gbAllocator a, Scope *scope, Token token) {
 	token.string = str_lit("_");
-	return make_entity_variable(a, file_scope, token, NULL);
+	return make_entity_variable(a, scope, token, NULL, false);
 }
 

src/exact_value.c

@@ -21,7 +21,7 @@ typedef enum ExactValueKind {
 typedef struct ExactValue {
 	ExactValueKind kind;
 	union {
-		bool      value_bool;
+		bool     value_bool;
 		String   value_string;
 		i64      value_integer; // NOTE(bill): This must be an integer and not a pointer
 		f64      value_float;
@@ -54,30 +54,57 @@ ExactValue make_exact_value_string(String string) {
 	return result;
 }
 
-ExactValue make_exact_value_integer_from_string(String string) {
-	// TODO(bill): Allow for numbers with underscores in them
-	ExactValue result = {ExactValue_Integer};
-	i32 base = 10;
-	if (string.text[0] == '0') {
-		switch (string.text[1]) {
-		case 'b': base = 2;  break;
-		case 'o': base = 8;  break;
-		case 'd': base = 10; break;
-		case 'x': base = 16; break;
-		}
-	}
-
-	result.value_integer = gb_str_to_i64(cast(char *)string.text, NULL, base);
-
-	return result;
-}
-
 ExactValue make_exact_value_integer(i64 i) {
 	ExactValue result = {ExactValue_Integer};
 	result.value_integer = i;
 	return result;
 }
 
+ExactValue make_exact_value_integer_from_string(String string) {
+	// TODO(bill): Allow for numbers with underscores in them
+	i32 base = 10;
+	bool has_prefix = false;
+	if (string.len > 2 && string.text[0] == '0') {
+		switch (string.text[1]) {
+		case 'b': base = 2;  has_prefix = true; break;
+		case 'o': base = 8;  has_prefix = true; break;
+		case 'd': base = 10; has_prefix = true; break;
+		case 'x': base = 16; has_prefix = true; break;
+		}
+	}
+
+	u8 *text = string.text;
+	isize len = string.len;
+	if (has_prefix) {
+		text += 2;
+		len -= 2;
+	}
+
+	i64 result = 0;
+	for (isize i = 0; i < len; i++) {
+		Rune r = cast(Rune)text[i];
+		if (r == '_') {
+			continue;
+		}
+		i64 v = 0;
+		if (gb_char_is_digit(r)) {
+			v = r - '0';
+		} else if (gb_char_is_hex_digit(r)) {
+			v = gb_hex_digit_to_int(r);
+		} else {
+			break;
+		}
+
+		result *= base;
+		result += v;
+	}
+
+
+	return make_exact_value_integer(result);
+}
+
+
+
 ExactValue make_exact_value_float_from_string(String string) {
 	// TODO(bill): Allow for numbers with underscores in them
 	ExactValue result = {ExactValue_Float};
@@ -306,6 +333,7 @@ ExactValue exact_binary_operator_value(TokenKind op, ExactValue x, ExactValue y)
 		case Token_Shr:    c = a >> b; break;
 		default: goto error;
 		}
+
 		return make_exact_value_integer(c);
 	} break;
 

src/gb/gb.h

@@ -4112,7 +4112,7 @@ gb_inline i64 gb_atomic64_fetch_and(gbAtomic64 volatile *a, i64 operand) {
 
 gb_inline i64 gb_atomic64_fetch_or(gbAtomic64 volatile *a, i64 operand) {
 #if defined(GB_ARCH_64_BIT)
-	return _InterlockedAnd64(cast(i64 volatile *)a, operand);
+	return _InterlockedOr64(cast(i64 volatile *)a, operand);
 #elif GB_CPU_X86
 	i64 expected = a->value;
 	for (;;) {
@@ -4819,14 +4819,10 @@ GB_ALLOCATOR_PROC(gb_heap_allocator_proc) {
 #else
 	// TODO(bill): *nix version that's decent
 	case gbAllocation_Alloc: {
-		gbAllocationHeader *header;
-		isize total_size = size + alignment + gb_size_of(gbAllocationHeader);
-		ptr = malloc(total_size);
-		header = cast(gbAllocationHeader *)ptr;
-		ptr = gb_align_forward(header+1, alignment);
-		gb_allocation_header_fill(header, ptr, size);
-		if (flags & gbAllocatorFlag_ClearToZero)
+		ptr = aligned_alloc(alignment, size);
+		if (flags & gbAllocatorFlag_ClearToZero) {
 			gb_zero_size(ptr, size);
+		}
 	} break;
 
 	case gbAllocation_Free: {

src/ir_opt.c

@@ -1,95 +1,93 @@
-// Optimizations for the SSA code
+// Optimizations for the IR code
 
-void ssa_opt_add_operands(ssaValueArray *ops, ssaInstr *i) {
+void ir_opt_add_operands(irValueArray *ops, irInstr *i) {
 	switch (i->kind) {
-	case ssaInstr_Comment:
+	case irInstr_Comment:
 		break;
-	case ssaInstr_Local:
+	case irInstr_Local:
 		break;
-	case ssaInstr_ZeroInit:
+	case irInstr_ZeroInit:
 		array_add(ops, i->ZeroInit.address);
 		break;
-	case ssaInstr_Store:
+	case irInstr_Store:
 		array_add(ops, i->Store.address);
 		array_add(ops, i->Store.value);
 		break;
-	case ssaInstr_Load:
+	case irInstr_Load:
 		array_add(ops, i->Load.address);
 		break;
-	case ssaInstr_ArrayElementPtr:
+	case irInstr_ArrayElementPtr:
 		array_add(ops, i->ArrayElementPtr.address);
 		array_add(ops, i->ArrayElementPtr.elem_index);
 		break;
-	case ssaInstr_StructElementPtr:
+	case irInstr_StructElementPtr:
 		array_add(ops, i->StructElementPtr.address);
 		break;
-	case ssaInstr_PtrOffset:
+	case irInstr_PtrOffset:
 		array_add(ops, i->PtrOffset.address);
 		array_add(ops, i->PtrOffset.offset);
 		break;
-	case ssaInstr_ArrayExtractValue:
-		array_add(ops, i->ArrayExtractValue.address);
-		break;
-	case ssaInstr_StructExtractValue:
+	case irInstr_StructExtractValue:
 		array_add(ops, i->StructExtractValue.address);
 		break;
-	case ssaInstr_Conv:
+	case irInstr_Conv:
 		array_add(ops, i->Conv.value);
 		break;
-	case ssaInstr_Jump:
+	case irInstr_Jump:
 		break;
-	case ssaInstr_If:
+	case irInstr_If:
 		array_add(ops, i->If.cond);
 		break;
-	case ssaInstr_Return:
+	case irInstr_Return:
 		if (i->Return.value != NULL) {
 			array_add(ops, i->Return.value);
 		}
 		break;
-	case ssaInstr_Select:
+	case irInstr_Select:
 		array_add(ops, i->Select.cond);
 		break;
-	case ssaInstr_Phi:
+	case irInstr_Phi:
 		for_array(j, i->Phi.edges) {
 			array_add(ops, i->Phi.edges.e[j]);
 		}
 		break;
-	case ssaInstr_Unreachable: break;
-	case ssaInstr_BinaryOp:
+	case irInstr_Unreachable:
+		break;
+	case irInstr_UnaryOp:
+		array_add(ops, i->UnaryOp.expr);
+		break;
+	case irInstr_BinaryOp:
 		array_add(ops, i->BinaryOp.left);
 		array_add(ops, i->BinaryOp.right);
 		break;
-	case ssaInstr_Call:
+	case irInstr_Call:
 		array_add(ops, i->Call.value);
 		for (isize j = 0; j < i->Call.arg_count; j++) {
 			array_add(ops, i->Call.args[j]);
 		}
 		break;
-	case ssaInstr_VectorExtractElement:
+	case irInstr_VectorExtractElement:
 		array_add(ops, i->VectorExtractElement.vector);
 		array_add(ops, i->VectorExtractElement.index);
 		break;
-	case ssaInstr_VectorInsertElement:
+	case irInstr_VectorInsertElement:
 		array_add(ops, i->VectorInsertElement.vector);
 		array_add(ops, i->VectorInsertElement.elem);
 		array_add(ops, i->VectorInsertElement.index);
 		break;
-	case ssaInstr_VectorShuffle:
+	case irInstr_VectorShuffle:
 		array_add(ops, i->VectorShuffle.vector);
 		break;
-	case ssaInstr_StartupRuntime:
+	case irInstr_StartupRuntime:
 		break;
-	case ssaInstr_BoundsCheck:
+	case irInstr_BoundsCheck:
 		array_add(ops, i->BoundsCheck.index);
 		array_add(ops, i->BoundsCheck.len);
 		break;
-	case ssaInstr_SliceBoundsCheck:
+	case irInstr_SliceBoundsCheck:
 		array_add(ops, i->SliceBoundsCheck.low);
 		array_add(ops, i->SliceBoundsCheck.high);
-		array_add(ops, i->SliceBoundsCheck.max);
 		break;
-
-
 	}
 }
 
@@ -97,26 +95,26 @@ void ssa_opt_add_operands(ssaValueArray *ops, ssaInstr *i) {
 
 
 
-void ssa_opt_block_replace_pred(ssaBlock *b, ssaBlock *from, ssaBlock *to) {
+void ir_opt_block_replace_pred(irBlock *b, irBlock *from, irBlock *to) {
 	for_array(i, b->preds) {
-		ssaBlock *pred = b->preds.e[i];
+		irBlock *pred = b->preds.e[i];
 		if (pred == from) {
 			b->preds.e[i] = to;
 		}
 	}
 }
 
-void ssa_opt_block_replace_succ(ssaBlock *b, ssaBlock *from, ssaBlock *to) {
+void ir_opt_block_replace_succ(irBlock *b, irBlock *from, irBlock *to) {
 	for_array(i, b->succs) {
-		ssaBlock *succ = b->succs.e[i];
+		irBlock *succ = b->succs.e[i];
 		if (succ == from) {
 			b->succs.e[i] = to;
 		}
 	}
 }
 
-bool ssa_opt_block_has_phi(ssaBlock *b) {
-	return b->instrs.e[0]->Instr.kind == ssaInstr_Phi;
+bool ir_opt_block_has_phi(irBlock *b) {
+	return b->instrs.e[0]->Instr.kind == irInstr_Phi;
 }
 
 
@@ -128,11 +126,11 @@ bool ssa_opt_block_has_phi(ssaBlock *b) {
 
 
 
-ssaValueArray ssa_get_block_phi_nodes(ssaBlock *b) {
-	ssaValueArray phis = {0};
+irValueArray ir_get_block_phi_nodes(irBlock *b) {
+	irValueArray phis = {0};
 	for_array(i, b->instrs) {
-		ssaInstr *instr = &b->instrs.e[i]->Instr;
-		if (instr->kind != ssaInstr_Phi) {
+		irInstr *instr = &b->instrs.e[i]->Instr;
+		if (instr->kind != irInstr_Phi) {
 			phis = b->instrs;
 			phis.count = i;
 			return phis;
@@ -141,15 +139,15 @@ ssaValueArray ssa_get_block_phi_nodes(ssaBlock *b) {
 	return phis;
 }
 
-void ssa_remove_pred(ssaBlock *b, ssaBlock *p) {
-	ssaValueArray phis = ssa_get_block_phi_nodes(b);
+void ir_remove_pred(irBlock *b, irBlock *p) {
+	irValueArray phis = ir_get_block_phi_nodes(b);
 	isize i = 0;
 	for_array(j, b->preds) {
-		ssaBlock *pred = b->preds.e[j];
+		irBlock *pred = b->preds.e[j];
 		if (pred != p) {
 			b->preds.e[i] = b->preds.e[j];
 			for_array(k, phis) {
-				ssaInstrPhi *phi = &phis.e[k]->Instr.Phi;
+				irInstrPhi *phi = &phis.e[k]->Instr.Phi;
 				phi->edges.e[i] = phi->edges.e[j];
 			}
 			i++;
@@ -157,16 +155,16 @@ void ssa_remove_pred(ssaBlock *b, ssaBlock *p) {
 	}
 	b->preds.count = i;
 	for_array(k, phis) {
-		ssaInstrPhi *phi = &phis.e[k]->Instr.Phi;
+		irInstrPhi *phi = &phis.e[k]->Instr.Phi;
 		phi->edges.count = i;
 	}
 
 }
 
-void ssa_remove_dead_blocks(ssaProcedure *proc) {
+void ir_remove_dead_blocks(irProcedure *proc) {
 	isize j = 0;
 	for_array(i, proc->blocks) {
-		ssaBlock *b = proc->blocks.e[i];
+		irBlock *b = proc->blocks.e[i];
 		if (b == NULL) {
 			continue;
 		}
@@ -177,34 +175,34 @@ void ssa_remove_dead_blocks(ssaProcedure *proc) {
 	proc->blocks.count = j;
 }
 
-void ssa_mark_reachable(ssaBlock *b) {
+void ir_mark_reachable(irBlock *b) {
 	isize const WHITE =  0;
 	isize const BLACK = -1;
 	b->index = BLACK;
 	for_array(i, b->succs) {
-		ssaBlock *succ = b->succs.e[i];
+		irBlock *succ = b->succs.e[i];
 		if (succ->index == WHITE) {
-			ssa_mark_reachable(succ);
+			ir_mark_reachable(succ);
 		}
 	}
 }
 
-void ssa_remove_unreachable_blocks(ssaProcedure *proc) {
+void ir_remove_unreachable_blocks(irProcedure *proc) {
 	isize const WHITE =  0;
 	isize const BLACK = -1;
 	for_array(i, proc->blocks) {
 		proc->blocks.e[i]->index = WHITE;
 	}
 
-	ssa_mark_reachable(proc->blocks.e[0]);
+	ir_mark_reachable(proc->blocks.e[0]);
 
 	for_array(i, proc->blocks) {
-		ssaBlock *b = proc->blocks.e[i];
+		irBlock *b = proc->blocks.e[i];
 		if (b->index == WHITE) {
 			for_array(j, b->succs) {
-				ssaBlock *c = b->succs.e[j];
+				irBlock *c = b->succs.e[j];
 				if (c->index == BLACK) {
-					ssa_remove_pred(c, b);
+					ir_remove_pred(c, b);
 				}
 			}
 			// NOTE(bill): Mark as empty but don't actually free it
@@ -212,26 +210,26 @@ void ssa_remove_unreachable_blocks(ssaProcedure *proc) {
 			proc->blocks.e[i] = NULL;
 		}
 	}
-	ssa_remove_dead_blocks(proc);
+	ir_remove_dead_blocks(proc);
 }
 
-bool ssa_opt_block_fusion(ssaProcedure *proc, ssaBlock *a) {
+bool ir_opt_block_fusion(irProcedure *proc, irBlock *a) {
 	if (a->succs.count != 1) {
 		return false;
 	}
-	ssaBlock *b = a->succs.e[0];
+	irBlock *b = a->succs.e[0];
 	if (b->preds.count != 1) {
 		return false;
 	}
 
-	if (ssa_opt_block_has_phi(b)) {
+	if (ir_opt_block_has_phi(b)) {
 		return false;
 	}
 
 	array_pop(&a->instrs); // Remove branch at end
 	for_array(i, b->instrs) {
 		array_add(&a->instrs, b->instrs.e[i]);
-		ssa_set_instr_parent(b->instrs.e[i], a);
+		ir_set_instr_parent(b->instrs.e[i], a);
 	}
 
 	array_clear(&a->succs);
@@ -241,28 +239,28 @@ bool ssa_opt_block_fusion(ssaProcedure *proc, ssaBlock *a) {
 
 	// Fix preds links
 	for_array(i, b->succs) {
-		ssa_opt_block_replace_pred(b->succs.e[i], b, a);
+		ir_opt_block_replace_pred(b->succs.e[i], b, a);
 	}
 
 	proc->blocks.e[b->index] = NULL;
 	return true;
 }
 
-void ssa_opt_blocks(ssaProcedure *proc) {
-	ssa_remove_unreachable_blocks(proc);
+void ir_opt_blocks(irProcedure *proc) {
+	ir_remove_unreachable_blocks(proc);
 
 #if 1
 	bool changed = true;
 	while (changed) {
 		changed = false;
 		for_array(i, proc->blocks) {
-			ssaBlock *b = proc->blocks.e[i];
+			irBlock *b = proc->blocks.e[i];
 			if (b == NULL) {
 				continue;
 			}
 			GB_ASSERT(b->index == i);
 
-			if (ssa_opt_block_fusion(proc, b)) {
+			if (ir_opt_block_fusion(proc, b)) {
 				changed = true;
 			}
 			// TODO(bill): other simple block optimizations
@@ -270,25 +268,25 @@ void ssa_opt_blocks(ssaProcedure *proc) {
 	}
 #endif
 
-	ssa_remove_dead_blocks(proc);
+	ir_remove_dead_blocks(proc);
 }
-void ssa_opt_build_referrers(ssaProcedure *proc) {
+void ir_opt_build_referrers(irProcedure *proc) {
 	gbTempArenaMemory tmp = gb_temp_arena_memory_begin(&proc->module->tmp_arena);
 
-	ssaValueArray ops = {0}; // NOTE(bill): Act as a buffer
+	irValueArray ops = {0}; // NOTE(bill): Act as a buffer
 	array_init_reserve(&ops, proc->module->tmp_allocator, 64); // HACK(bill): This _could_ overflow the temp arena
 	for_array(i, proc->blocks) {
-		ssaBlock *b = proc->blocks.e[i];
+		irBlock *b = proc->blocks.e[i];
 		for_array(j, b->instrs) {
-			ssaValue *instr = b->instrs.e[j];
+			irValue *instr = b->instrs.e[j];
 			array_clear(&ops);
-			ssa_opt_add_operands(&ops, &instr->Instr);
+			ir_opt_add_operands(&ops, &instr->Instr);
 			for_array(k, ops) {
-				ssaValue *op = ops.e[k];
+				irValue *op = ops.e[k];
 				if (op == NULL) {
 					continue;
 				}
-				ssaValueArray *refs = ssa_value_referrers(op);
+				irValueArray *refs = ir_value_referrers(op);
 				if (refs != NULL) {
 					array_add(refs, instr);
 				}
@@ -307,36 +305,36 @@ void ssa_opt_build_referrers(ssaProcedure *proc) {
 
 // State of Lengauer-Tarjan algorithm
 // Based on this paper: http://jgaa.info/accepted/2006/GeorgiadisTarjanWerneck2006.10.1.pdf
-typedef struct ssaLTState {
+typedef struct irLTState {
 	isize count;
 	// NOTE(bill): These are arrays
-	ssaBlock **sdom;     // Semidominator
-	ssaBlock **parent;   // Parent in DFS traversal of CFG
-	ssaBlock **ancestor;
-} ssaLTState;
+	irBlock **sdom;     // Semidominator
+	irBlock **parent;   // Parent in DFS traversal of CFG
+	irBlock **ancestor;
+} irLTState;
 
 // §2.2 - bottom of page
-void ssa_lt_link(ssaLTState *lt, ssaBlock *p, ssaBlock *q) {
+void ir_lt_link(irLTState *lt, irBlock *p, irBlock *q) {
 	lt->ancestor[q->index] = p;
 }
 
-i32 ssa_lt_depth_first_search(ssaLTState *lt, ssaBlock *p, i32 i, ssaBlock **preorder) {
+i32 ir_lt_depth_first_search(irLTState *lt, irBlock *p, i32 i, irBlock **preorder) {
 	preorder[i] = p;
 	p->dom.pre = i++;
 	lt->sdom[p->index] = p;
-	ssa_lt_link(lt, NULL, p);
+	ir_lt_link(lt, NULL, p);
 	for_array(index, p->succs) {
-		ssaBlock *q = p->succs.e[index];
+		irBlock *q = p->succs.e[index];
 		if (lt->sdom[q->index] == NULL) {
 			lt->parent[q->index] = p;
-			i = ssa_lt_depth_first_search(lt, q, i, preorder);
+			i = ir_lt_depth_first_search(lt, q, i, preorder);
 		}
 	}
 	return i;
 }
 
-ssaBlock *ssa_lt_eval(ssaLTState *lt, ssaBlock *v) {
-	ssaBlock *u = v;
+irBlock *ir_lt_eval(irLTState *lt, irBlock *v) {
+	irBlock *u = v;
 	for (;
 	     lt->ancestor[v->index] != NULL;
 	     v = lt->ancestor[v->index]) {
@@ -347,16 +345,16 @@ ssaBlock *ssa_lt_eval(ssaLTState *lt, ssaBlock *v) {
 	return u;
 }
 
-typedef struct ssaDomPrePost {
+typedef struct irDomPrePost {
 	i32 pre, post;
-} ssaDomPrePost;
+} irDomPrePost;
 
-ssaDomPrePost ssa_opt_number_dom_tree(ssaBlock *v, i32 pre, i32 post) {
-	ssaDomPrePost result = {pre, post};
+irDomPrePost ir_opt_number_dom_tree(irBlock *v, i32 pre, i32 post) {
+	irDomPrePost result = {pre, post};
 
 	v->dom.pre = pre++;
 	for_array(i, v->dom.children) {
-		result = ssa_opt_number_dom_tree(v->dom.children.e[i], result.pre, result.post);
+		result = ir_opt_number_dom_tree(v->dom.children.e[i], result.pre, result.post);
 	}
 	v->dom.post = post++;
 
@@ -366,35 +364,35 @@ ssaDomPrePost ssa_opt_number_dom_tree(ssaBlock *v, i32 pre, i32 post) {
 }
 
 
-// NOTE(bill): Requires `ssa_opt_blocks` to be called before this
-void ssa_opt_build_dom_tree(ssaProcedure *proc) {
+// NOTE(bill): Requires `ir_opt_blocks` to be called before this
+void ir_opt_build_dom_tree(irProcedure *proc) {
 	// Based on this paper: http://jgaa.info/accepted/2006/GeorgiadisTarjanWerneck2006.10.1.pdf
 
 	gbTempArenaMemory tmp = gb_temp_arena_memory_begin(&proc->module->tmp_arena);
 
 	isize n = proc->blocks.count;
-	ssaBlock **buf = gb_alloc_array(proc->module->tmp_allocator, ssaBlock *, 5*n);
+	irBlock **buf = gb_alloc_array(proc->module->tmp_allocator, irBlock *, 5*n);
 
-	ssaLTState lt = {0};
+	irLTState lt = {0};
 	lt.count    = n;
 	lt.sdom     = &buf[0*n];
 	lt.parent   = &buf[1*n];
 	lt.ancestor = &buf[2*n];
 
-	ssaBlock **preorder = &buf[3*n];
-	ssaBlock **buckets  = &buf[4*n];
-	ssaBlock *root = proc->blocks.e[0];
+	irBlock **preorder = &buf[3*n];
+	irBlock **buckets  = &buf[4*n];
+	irBlock *root = proc->blocks.e[0];
 
 	// Step 1 - number vertices
-	i32 pre_num = ssa_lt_depth_first_search(&lt, root, 0, preorder);
+	i32 pre_num = ir_lt_depth_first_search(&lt, root, 0, preorder);
 	gb_memmove(buckets, preorder, n*gb_size_of(preorder[0]));
 
 	for (i32 i = n-1; i > 0; i--) {
-		ssaBlock *w = preorder[i];
+		irBlock *w = preorder[i];
 
 		// Step 3 - Implicitly define idom for nodes
-		for (ssaBlock *v = buckets[i]; v != w; v = buckets[v->dom.pre]) {
-			ssaBlock *u = ssa_lt_eval(&lt, v);
+		for (irBlock *v = buckets[i]; v != w; v = buckets[v->dom.pre]) {
+			irBlock *u = ir_lt_eval(&lt, v);
 			if (lt.sdom[u->index]->dom.pre < i) {
 				v->dom.idom = u;
 			} else {
@@ -405,14 +403,14 @@ void ssa_opt_build_dom_tree(ssaProcedure *proc) {
 		// Step 2 - Compute all sdoms
 		lt.sdom[w->index] = lt.parent[w->index];
 		for_array(pred_index, w->preds) {
-			ssaBlock *v = w->preds.e[pred_index];
-			ssaBlock *u = ssa_lt_eval(&lt, v);
+			irBlock *v = w->preds.e[pred_index];
+			irBlock *u = ir_lt_eval(&lt, v);
 			if (lt.sdom[u->index]->dom.pre < lt.sdom[w->index]->dom.pre) {
 				lt.sdom[w->index] = lt.sdom[u->index];
 			}
 		}
 
-		ssa_lt_link(&lt, lt.parent[w->index], w);
+		ir_lt_link(&lt, lt.parent[w->index], w);
 
 		if (lt.parent[w->index] == lt.sdom[w->index]) {
 			w->dom.idom = lt.parent[w->index];
@@ -423,13 +421,13 @@ void ssa_opt_build_dom_tree(ssaProcedure *proc) {
 	}
 
 	// The rest of Step 3
-	for (ssaBlock *v = buckets[0]; v != root; v = buckets[v->dom.pre]) {
+	for (irBlock *v = buckets[0]; v != root; v = buckets[v->dom.pre]) {
 		v->dom.idom = root;
 	}
 
 	// Step 4 - Explicitly define idom for nodes (in preorder)
 	for (isize i = 1; i < n; i++) {
-		ssaBlock *w = preorder[i];
+		irBlock *w = preorder[i];
 		if (w == root) {
 			w->dom.idom = NULL;
 		} else {
@@ -448,32 +446,32 @@ void ssa_opt_build_dom_tree(ssaProcedure *proc) {
 		}
 	}
 
-	ssa_opt_number_dom_tree(root, 0, 0);
+	ir_opt_number_dom_tree(root, 0, 0);
 
 	gb_temp_arena_memory_end(tmp);
 }
 
-void ssa_opt_mem2reg(ssaProcedure *proc) {
-	// TODO(bill): ssa_opt_mem2reg
+void ir_opt_mem2reg(irProcedure *proc) {
+	// TODO(bill): ir_opt_mem2reg
 }
 
 
 
-void ssa_opt_tree(ssaGen *s) {
+void ir_opt_tree(irGen *s) {
 	s->opt_called = true;
 
 	for_array(member_index, s->module.procs) {
-		ssaProcedure *proc = s->module.procs.e[member_index];
+		irProcedure *proc = s->module.procs.e[member_index];
 		if (proc->blocks.count == 0) { // Prototype/external procedure
 			continue;
 		}
 
-		ssa_opt_blocks(proc);
+		ir_opt_blocks(proc);
 	#if 1
-		ssa_opt_build_referrers(proc);
-		ssa_opt_build_dom_tree(proc);
+		ir_opt_build_referrers(proc);
+		ir_opt_build_dom_tree(proc);
 
-		// TODO(bill): ssa optimization
+		// TODO(bill): ir optimization
 		// [ ] cse (common-subexpression) elim
 		// [ ] copy elim
 		// [ ] dead code elim
@@ -484,10 +482,10 @@ void ssa_opt_tree(ssaGen *s) {
 		// [ ] lift/mem2reg
 		// [ ] lift/mem2reg
 
-		ssa_opt_mem2reg(proc);
+		ir_opt_mem2reg(proc);
 	#endif
 
 		GB_ASSERT(proc->blocks.count > 0);
-		ssa_number_proc_registers(proc);
+		ir_number_proc_registers(proc);
 	}
 }

src/main.c

@@ -1,22 +1,23 @@
 #if defined(__cplusplus)
 extern "C" {
 #endif
-#define VERSION_STRING "v0.0.3d"
 
 #include "common.c"
 #include "timings.c"
 #include "unicode.c"
+#include "build.c"
 #include "tokenizer.c"
 #include "parser.c"
 // #include "printer.c"
-#include "checker/checker.c"
-#include "ssa.c"
-#include "ssa_opt.c"
-#include "ssa_print.c"
+#include "checker.c"
+// #include "ssa.c"
+#include "ir.c"
+#include "ir_opt.c"
+#include "ir_print.c"
 // #include "vm.c"
 
 // NOTE(bill): `name` is used in debugging and profiling modes
-i32 win32_exec_command_line_app(char *name, char *fmt, ...) {
+i32 win32_exec_command_line_app(char *name, bool is_silent, char *fmt, ...) {
 	STARTUPINFOW start_info = {gb_size_of(STARTUPINFOW)};
 	PROCESS_INFORMATION pi = {0};
 	char cmd_line[4096] = {0};
@@ -59,49 +60,26 @@ i32 win32_exec_command_line_app(char *name, char *fmt, ...) {
 	return exit_code;
 }
 
-typedef enum ArchKind {
-	ArchKind_x64,
-	ArchKind_x86,
-} ArchKind;
-
-typedef struct ArchData {
-	BaseTypeSizes sizes;
-	String llc_flags;
-	String link_flags;
-} ArchData;
-
-ArchData make_arch_data(ArchKind kind) {
-	ArchData data = {0};
-
-	switch (kind) {
-	case ArchKind_x64:
-	default:
-		data.sizes.word_size = 8;
-		data.sizes.max_align = 16;
-		data.llc_flags = str_lit("-march=x86-64 ");
-		data.link_flags = str_lit("/machine:x64 ");
-		break;
-
-	case ArchKind_x86:
-		data.sizes.word_size = 4;
-		data.sizes.max_align = 8;
-		data.llc_flags = str_lit("-march=x86 ");
-		data.link_flags = str_lit("/machine:x86 ");
-		break;
+void print_usage_line(i32 indent, char *fmt, ...) {
+	while (indent --> 0) {
+		gb_printf_err("\t");
 	}
-
-	return data;
+	va_list va;
+	va_start(va, fmt);
+	gb_printf_err_va(fmt, va);
+	va_end(va);
+	gb_printf_err("\n");
 }
 
 void usage(char *argv0) {
-	gb_printf_err("%s is a tool for managing Odin source code\n", argv0);
-	gb_printf_err("Usage:");
-	gb_printf_err("\n\t%s command [arguments]\n", argv0);
-	gb_printf_err("Commands:");
-	gb_printf_err("\n\tbuild   compile .odin file");
-	gb_printf_err("\n\trun     compile and run .odin file");
-	gb_printf_err("\n\tversion print Odin version");
-	gb_printf_err("\n\n");
+	print_usage_line(0, "%s is a tool for managing Odin source code", argv0);
+	print_usage_line(0, "Usage:");
+	print_usage_line(1, "%s command [arguments]", argv0);
+	print_usage_line(0, "Commands:");
+	print_usage_line(1, "build        compile .odin file as executable");
+	print_usage_line(1, "build_dll    compile .odin file as dll");
+	print_usage_line(1, "run          compile and run .odin file");
+	print_usage_line(1, "version      print version");
 }
 
 int main(int argc, char **argv) {
@@ -113,25 +91,42 @@ int main(int argc, char **argv) {
 	Timings timings = {0};
 	timings_init(&timings, str_lit("Total Time"), 128);
 	// defer (timings_destroy(&timings));
-
-#if 1
 	init_string_buffer_memory();
+	init_scratch_memory(gb_megabytes(10));
 	init_global_error_collector();
 
-	String module_dir = get_module_dir();
+#if 1
 
-	init_universal_scope();
+	BuildContext build_context = {0};
+	init_build_context(&build_context);
+
+	init_universal_scope(&build_context);
 
 	char *init_filename = NULL;
 	bool run_output = false;
 	String arg1 = make_string_c(argv[1]);
 	if (str_eq(arg1, str_lit("run"))) {
-		run_output = true;
+		if (argc != 3) {
+			usage(argv[0]);
+			return 1;
+		}
 		init_filename = argv[2];
+		run_output = true;
+	} else if (str_eq(arg1, str_lit("build_dll"))) {
+		if (argc != 3) {
+			usage(argv[0]);
+			return 1;
+		}
+		init_filename = argv[2];
+		build_context.is_dll = true;
 	} else if (str_eq(arg1, str_lit("build"))) {
+		if (argc != 3) {
+			usage(argv[0]);
+			return 1;
+		}
 		init_filename = argv[2];
 	} else if (str_eq(arg1, str_lit("version"))) {
-		gb_printf("%s version %s", argv[0], VERSION_STRING);
+		gb_printf("%s version %.*s", argv[0], LIT(build_context.ODIN_VERSION));
 		return 0;
 	} else {
 		usage(argv[0]);
@@ -157,38 +152,48 @@ int main(int argc, char **argv) {
 	timings_start_section(&timings, str_lit("type check"));
 
 	Checker checker = {0};
-	ArchData arch_data = make_arch_data(ArchKind_x64);
 
-	init_checker(&checker, &parser, arch_data.sizes);
+	init_checker(&checker, &parser, &build_context);
 	// defer (destroy_checker(&checker));
 
 	check_parsed_files(&checker);
 
 
 #endif
-#if 1
-
-	ssaGen ssa = {0};
-	if (!ssa_gen_init(&ssa, &checker)) {
+#if 0
+	if (global_error_collector.count != 0) {
 		return 1;
 	}
-	// defer (ssa_gen_destroy(&ssa));
 
-	timings_start_section(&timings, str_lit("ssa gen"));
-	ssa_gen_tree(&ssa);
+	if (checker.parser->total_token_count < 2) {
+		return 1;
+	}
 
-	timings_start_section(&timings, str_lit("ssa opt"));
-	ssa_opt_tree(&ssa);
+	ssa_generate(&checker.info, &build_context);
+#endif
+#if 1
 
-	timings_start_section(&timings, str_lit("ssa print"));
-	ssa_print_llvm_ir(&ssa);
+	irGen ir_gen = {0};
+	if (!ir_gen_init(&ir_gen, &checker, &build_context)) {
+		return 1;
+	}
+	// defer (ssa_gen_destroy(&ir_gen));
+
+	timings_start_section(&timings, str_lit("llvm ir gen"));
+	ir_gen_tree(&ir_gen);
+
+	timings_start_section(&timings, str_lit("llvm ir opt tree"));
+	ir_opt_tree(&ir_gen);
+
+	timings_start_section(&timings, str_lit("llvm ir print"));
+	print_llvm_ir(&ir_gen);
 
 	// prof_print_all();
 
 #if 1
 	timings_start_section(&timings, str_lit("llvm-opt"));
 
-	char const *output_name = ssa.output_file.filename;
+	char const *output_name = ir_gen.output_file.filename;
 	isize base_name_len = gb_path_extension(output_name)-1 - output_name;
 	String output = make_string(cast(u8 *)output_name, base_name_len);
 
@@ -197,8 +202,8 @@ int main(int argc, char **argv) {
 
 	i32 exit_code = 0;
 	// For more passes arguments: http://llvm.org/docs/Passes.html
-	exit_code = win32_exec_command_line_app("llvm-opt",
-		"%.*sbin/opt %s -o %.*s.bc "
+	exit_code = win32_exec_command_line_app("llvm-opt", false,
+		"\"%.*sbin/opt\" \"%s\" -o \"%.*s\".bc "
 		"-mem2reg "
 		"-memcpyopt "
 		"-die "
@@ -206,7 +211,7 @@ int main(int argc, char **argv) {
 		// "-dce "
 		// "-S "
 		"",
-		LIT(module_dir),
+		LIT(build_context.ODIN_ROOT),
 		output_name, LIT(output));
 	if (exit_code != 0) {
 		return exit_code;
@@ -215,39 +220,52 @@ int main(int argc, char **argv) {
 	#if 1
 	timings_start_section(&timings, str_lit("llvm-llc"));
 	// For more arguments: http://llvm.org/docs/CommandGuide/llc.html
-	exit_code = win32_exec_command_line_app("llvm-llc",
-		"%.*sbin/llc %.*s.bc -filetype=obj -O%d "
+	exit_code = win32_exec_command_line_app("llvm-llc", false,
+		"\"%.*sbin/llc\" \"%.*s.bc\" -filetype=obj -O%d "
 		"%.*s "
 		// "-debug-pass=Arguments "
 		"",
-		LIT(module_dir),
+		LIT(build_context.ODIN_ROOT),
 		LIT(output),
 		optimization_level,
-		LIT(arch_data.llc_flags));
+		LIT(build_context.llc_flags));
 	if (exit_code != 0) {
 		return exit_code;
 	}
 
 	timings_start_section(&timings, str_lit("msvc-link"));
 
-	gbString lib_str = gb_string_make(heap_allocator(), "Kernel32.lib");
+	gbString lib_str = gb_string_make(heap_allocator(), "");
 	// defer (gb_string_free(lib_str));
 	char lib_str_buf[1024] = {0};
-	for_array(i, parser.foreign_libraries) {
-		String lib = parser.foreign_libraries.e[i];
+	for_array(i, ir_gen.module.foreign_library_paths) {
+		String lib = ir_gen.module.foreign_library_paths.e[i];
+		// gb_printf_err("Linking lib: %.*s\n", LIT(lib));
 		isize len = gb_snprintf(lib_str_buf, gb_size_of(lib_str_buf),
-		                        " %.*s.lib", LIT(lib));
+		                        " \"%.*s\"", LIT(lib));
 		lib_str = gb_string_appendc(lib_str, lib_str_buf);
 	}
 
-	exit_code = win32_exec_command_line_app("msvc-link",
-		"link %.*s.obj -OUT:%.*s.exe %s "
+	char *output_ext = "exe";
+	char *link_settings = "";
+	if (build_context.is_dll) {
+		output_ext = "dll";
+		link_settings = "/DLL";
+	} else {
+		link_settings = "/ENTRY:mainCRTStartup";
+	}
+
+	exit_code = win32_exec_command_line_app("msvc-link", true,
+		"link \"%.*s\".obj -OUT:\"%.*s.%s\" %s "
 		"/defaultlib:libcmt "
-		"/nologo /incremental:no /opt:ref /subsystem:console "
+		"/nologo /incremental:no /opt:ref /subsystem:CONSOLE "
 		" %.*s "
+		" %s "
 		"",
-		LIT(output), LIT(output),
-		lib_str, LIT(arch_data.link_flags));
+		LIT(output), LIT(output), output_ext,
+		lib_str, LIT(build_context.link_flags),
+		link_settings
+		);
 	if (exit_code != 0) {
 		return exit_code;
 	}
@@ -255,8 +273,7 @@ int main(int argc, char **argv) {
 	// timings_print_all(&timings);
 
 	if (run_output) {
-		win32_exec_command_line_app("odin run",
-			"%.*s.exe", cast(int)base_name_len, output_name);
+		win32_exec_command_line_app("odin run", false, "%.*s.exe", cast(int)base_name_len, output_name);
 	}
 	#endif
 #endif

src/map.c

@@ -320,6 +320,7 @@ void _J2(MAP_PROC,multi_insert)(MAP_NAME *h, HashKey key, MAP_TYPE value) {
 	if (h->hashes.count == 0) {
 		_J2(MAP_PROC,grow)(h);
 	}
+	// Make
 	fr = _J2(MAP_PROC,_find)(h, key);
 	i = _J2(MAP_PROC,_add_entry)(h, key);
 	if (fr.entry_prev < 0) {
@@ -329,6 +330,7 @@ void _J2(MAP_PROC,multi_insert)(MAP_NAME *h, HashKey key, MAP_TYPE value) {
 	}
 	h->entries.e[i].next = fr.entry_index;
 	h->entries.e[i].value = value;
+	// Grow if needed
 	if (_J2(MAP_PROC,_full)(h)) {
 		_J2(MAP_PROC,grow)(h);
 	}

src/string.c

@@ -46,7 +46,7 @@ gb_inline String make_string_c(char *text) {
 	return make_string(cast(u8 *)cast(void *)text, gb_strlen(text));
 }
 
-#define str_lit(c_str) make_string(cast(u8 *)c_str, gb_size_of(c_str)-1)
+#define str_lit(c_str) (String){cast(u8 *)c_str, gb_size_of(c_str)-1}
 
 
 
@@ -108,19 +108,6 @@ GB_COMPARE_PROC(string_cmp_proc) {
 	return string_compare(x, y);
 }
 
-
-// gb_inline bool operator ==(String a, String b) { return are_strings_equal(a, b) != 0; }
-// gb_inline bool operator !=(String a, String b) { return !operator==(a, b); }
-// gb_inline bool operator < (String a, String b) { return string_compare(a, b) < 0; }
-// gb_inline bool operator > (String a, String b) { return string_compare(a, b) > 0; }
-// gb_inline bool operator <=(String a, String b) { return string_compare(a, b) <= 0; }
-// gb_inline bool operator >=(String a, String b) { return string_compare(a, b) >= 0; }
-
-// template <size_t N> gb_inline bool operator ==(String a, char const (&b)[N]) { return a == make_string(cast(u8 *)b, N-1); }
-// template <size_t N> gb_inline bool operator !=(String a, char const (&b)[N]) { return a != make_string(cast(u8 *)b, N-1); }
-// template <size_t N> gb_inline bool operator ==(char const (&a)[N], String b) { return make_string(cast(u8 *)a, N-1) == b; }
-// template <size_t N> gb_inline bool operator !=(char const (&a)[N], String b) { return make_string(cast(u8 *)a, N-1) != b; }
-
 gb_inline bool str_eq(String a, String b) { return a.len == b.len ? gb_memcompare(a.text, b.text, a.len) == 0 : false; }
 gb_inline bool str_ne(String a, String b) { return !str_eq(a, b);                }
 gb_inline bool str_lt(String a, String b) { return string_compare(a, b) < 0;     }

src/tokenizer.c

@@ -1,89 +1,88 @@
 #define TOKEN_KINDS \
 	TOKEN_KIND(Token_Invalid, "Invalid"), \
-	TOKEN_KIND(Token_EOF, "EOF"), \
+	TOKEN_KIND(Token_EOF,     "EOF"), \
 	TOKEN_KIND(Token_Comment, "Comment"), \
 \
 TOKEN_KIND(Token__LiteralBegin, "_LiteralBegin"), \
-	TOKEN_KIND(Token_Identifier, "Identifier"), \
-	TOKEN_KIND(Token_Integer, "Integer"), \
-	TOKEN_KIND(Token_Float, "Float"), \
-	TOKEN_KIND(Token_Rune, "Rune"), \
-	TOKEN_KIND(Token_String, "String"), \
-TOKEN_KIND(Token__LiteralEnd, "_LiteralEnd"), \
+	TOKEN_KIND(Token_Ident,     "identifier"), \
+	TOKEN_KIND(Token_Integer,   "integer"), \
+	TOKEN_KIND(Token_Float,     "float"), \
+	TOKEN_KIND(Token_Rune,      "rune"), \
+	TOKEN_KIND(Token_String,    "string"), \
+TOKEN_KIND(Token__LiteralEnd,   "_LiteralEnd"), \
 \
 TOKEN_KIND(Token__OperatorBegin, "_OperatorBegin"), \
-	TOKEN_KIND(Token_Eq, "="), \
-	TOKEN_KIND(Token_Not, "!"), \
-	TOKEN_KIND(Token_Hash, "#"), \
-	TOKEN_KIND(Token_At, "@"), \
+	TOKEN_KIND(Token_Eq,      "="), \
+	TOKEN_KIND(Token_Not,     "!"), \
+	TOKEN_KIND(Token_Hash,    "#"), \
+	TOKEN_KIND(Token_At,      "@"), \
 	TOKEN_KIND(Token_Pointer, "^"), \
-	TOKEN_KIND(Token_Maybe, "?"), \
-	TOKEN_KIND(Token_Add, "+"), \
-	TOKEN_KIND(Token_Sub, "-"), \
-	TOKEN_KIND(Token_Mul, "*"), \
-	TOKEN_KIND(Token_Quo, "/"), \
-	TOKEN_KIND(Token_Mod, "%"), \
-	TOKEN_KIND(Token_And, "&"), \
-	TOKEN_KIND(Token_Or, "|"), \
-	TOKEN_KIND(Token_Xor, "~"), \
-	TOKEN_KIND(Token_AndNot, "&~"), \
-	TOKEN_KIND(Token_Shl, "<<"), \
-	TOKEN_KIND(Token_Shr, ">>"), \
+	TOKEN_KIND(Token_Maybe,   "?"), \
+	TOKEN_KIND(Token_Add,     "+"), \
+	TOKEN_KIND(Token_Sub,     "-"), \
+	TOKEN_KIND(Token_Mul,     "*"), \
+	TOKEN_KIND(Token_Quo,     "/"), \
+	TOKEN_KIND(Token_Mod,     "%"), \
+	TOKEN_KIND(Token_And,     "&"), \
+	TOKEN_KIND(Token_Or,      "|"), \
+	TOKEN_KIND(Token_Xor,     "~"), \
+	TOKEN_KIND(Token_AndNot,  "&~"), \
+	TOKEN_KIND(Token_Shl,     "<<"), \
+	TOKEN_KIND(Token_Shr,     ">>"), \
 \
-	TOKEN_KIND(Token_as,         "as"), \
-	TOKEN_KIND(Token_transmute,  "transmute"), \
-	TOKEN_KIND(Token_down_cast,  "down_cast"), \
-	TOKEN_KIND(Token_union_cast, "union_cast"), \
+	/*TOKEN_KIND(Token_as,         "as"), */\
+	/*TOKEN_KIND(Token_transmute,  "transmute"), */\
+	/*TOKEN_KIND(Token_down_cast,  "down_cast"), */\
+	/*TOKEN_KIND(Token_union_cast, "union_cast"), */\
 \
 	TOKEN_KIND(Token_CmpAnd, "&&"), \
-	TOKEN_KIND(Token_CmpOr, "||"), \
+	TOKEN_KIND(Token_CmpOr,  "||"), \
 \
 TOKEN_KIND(Token__AssignOpBegin, "_AssignOpBegin"), \
-	TOKEN_KIND(Token_AddEq, "+="), \
-	TOKEN_KIND(Token_SubEq, "-="), \
-	TOKEN_KIND(Token_MulEq, "*="), \
-	TOKEN_KIND(Token_QuoEq, "/="), \
-	TOKEN_KIND(Token_ModEq, "%="), \
-	TOKEN_KIND(Token_AndEq, "&="), \
-	TOKEN_KIND(Token_OrEq, "|="), \
-	TOKEN_KIND(Token_XorEq, "~="), \
-	TOKEN_KIND(Token_AndNotEq, "&~="), \
-	TOKEN_KIND(Token_ShlEq, "<<="), \
-	TOKEN_KIND(Token_ShrEq, ">>="), \
-	TOKEN_KIND(Token_CmpAndEq, "&&="), \
-	TOKEN_KIND(Token_CmpOrEq, "||="), \
-TOKEN_KIND(Token__AssignOpEnd, "_AssignOpEnd"), \
-	TOKEN_KIND(Token_Increment, "++"), \
-	TOKEN_KIND(Token_Decrement, "--"), \
+	TOKEN_KIND(Token_AddEq,      "+="), \
+	TOKEN_KIND(Token_SubEq,      "-="), \
+	TOKEN_KIND(Token_MulEq,      "*="), \
+	TOKEN_KIND(Token_QuoEq,      "/="), \
+	TOKEN_KIND(Token_ModEq,      "%="), \
+	TOKEN_KIND(Token_AndEq,      "&="), \
+	TOKEN_KIND(Token_OrEq,       "|="), \
+	TOKEN_KIND(Token_XorEq,      "~="), \
+	TOKEN_KIND(Token_AndNotEq,   "&~="), \
+	TOKEN_KIND(Token_ShlEq,      "<<="), \
+	TOKEN_KIND(Token_ShrEq,      ">>="), \
+	TOKEN_KIND(Token_CmpAndEq,   "&&="), \
+	TOKEN_KIND(Token_CmpOrEq,    "||="), \
+TOKEN_KIND(Token__AssignOpEnd,   "_AssignOpEnd"), \
 	TOKEN_KIND(Token_ArrowRight, "->"), \
-	TOKEN_KIND(Token_ArrowLeft, "<-"), \
+	TOKEN_KIND(Token_ArrowLeft,  "<-"), \
 \
 TOKEN_KIND(Token__ComparisonBegin, "_ComparisonBegin"), \
 	TOKEN_KIND(Token_CmpEq, "=="), \
 	TOKEN_KIND(Token_NotEq, "!="), \
-	TOKEN_KIND(Token_Lt, "<"), \
-	TOKEN_KIND(Token_Gt, ">"), \
-	TOKEN_KIND(Token_LtEq, "<="), \
-	TOKEN_KIND(Token_GtEq, ">="), \
+	TOKEN_KIND(Token_Lt,    "<"), \
+	TOKEN_KIND(Token_Gt,    ">"), \
+	TOKEN_KIND(Token_LtEq,  "<="), \
+	TOKEN_KIND(Token_GtEq,  ">="), \
 TOKEN_KIND(Token__ComparisonEnd, "_ComparisonEnd"), \
 \
-	TOKEN_KIND(Token_OpenParen, "("), \
-	TOKEN_KIND(Token_CloseParen, ")"), \
-	TOKEN_KIND(Token_OpenBracket, "["), \
-	TOKEN_KIND(Token_CloseBracket, "]"), \
-	TOKEN_KIND(Token_OpenBrace, "{"), \
-	TOKEN_KIND(Token_CloseBrace, "}"), \
-	TOKEN_KIND(Token_Colon, ":"), \
-	TOKEN_KIND(Token_Semicolon, ";"), \
-	TOKEN_KIND(Token_Period, "."), \
-	TOKEN_KIND(Token_Comma, ","), \
-	TOKEN_KIND(Token_Ellipsis, ".."), \
-	TOKEN_KIND(Token_RangeExclusive, "..<"), \
+	TOKEN_KIND(Token_OpenParen,     "("), \
+	TOKEN_KIND(Token_CloseParen,    ")"), \
+	TOKEN_KIND(Token_OpenBracket,   "["), \
+	TOKEN_KIND(Token_CloseBracket,  "]"), \
+	TOKEN_KIND(Token_OpenBrace,     "{"), \
+	TOKEN_KIND(Token_CloseBrace,    "}"), \
+	TOKEN_KIND(Token_Colon,         ":"), \
+	TOKEN_KIND(Token_Semicolon,     ";"), \
+	TOKEN_KIND(Token_Period,        "."), \
+	TOKEN_KIND(Token_Comma,         ","), \
+	TOKEN_KIND(Token_Ellipsis,      "..."), \
+	TOKEN_KIND(Token_HalfOpenRange, "..<"), \
 TOKEN_KIND(Token__OperatorEnd, "_OperatorEnd"), \
 \
 TOKEN_KIND(Token__KeywordBegin, "_KeywordBegin"), \
 	TOKEN_KIND(Token_type,           "type"), \
 	TOKEN_KIND(Token_proc,           "proc"), \
+	TOKEN_KIND(Token_macro,          "macro"), \
 	TOKEN_KIND(Token_match,          "match"), \
 	TOKEN_KIND(Token_break,          "break"), \
 	TOKEN_KIND(Token_continue,       "continue"), \
@@ -94,19 +93,28 @@ TOKEN_KIND(Token__KeywordBegin, "_KeywordBegin"), \
 	TOKEN_KIND(Token_if,             "if"), \
 	TOKEN_KIND(Token_else,           "else"), \
 	TOKEN_KIND(Token_for,            "for"), \
+	TOKEN_KIND(Token_in,             "in"), \
+	TOKEN_KIND(Token_when,           "when"), \
 	TOKEN_KIND(Token_range,          "range"), \
 	TOKEN_KIND(Token_defer,          "defer"), \
 	TOKEN_KIND(Token_return,         "return"), \
+	TOKEN_KIND(Token_give,           "give"), \
 	TOKEN_KIND(Token_struct,         "struct"), \
 	TOKEN_KIND(Token_union,          "union"), \
 	TOKEN_KIND(Token_raw_union,      "raw_union"), \
 	TOKEN_KIND(Token_enum,           "enum"), \
+	TOKEN_KIND(Token_vector,         "vector"), \
 	TOKEN_KIND(Token_using,          "using"), \
+	TOKEN_KIND(Token_no_alias,       "no_alias"), \
+	TOKEN_KIND(Token_immutable,      "immutable"), \
+	TOKEN_KIND(Token_thread_local,   "thread_local"), \
 	TOKEN_KIND(Token_asm,            "asm"), \
-	TOKEN_KIND(Token_volatile,       "volatile"), \
-	TOKEN_KIND(Token_atomic,         "atomic"), \
 	TOKEN_KIND(Token_push_allocator, "push_allocator"), \
 	TOKEN_KIND(Token_push_context,   "push_context"), \
+	TOKEN_KIND(Token_cast,           "cast"), \
+	TOKEN_KIND(Token_transmute,      "transmute"), \
+	TOKEN_KIND(Token_down_cast,      "down_cast"), \
+	TOKEN_KIND(Token_union_cast,     "union_cast"), \
 TOKEN_KIND(Token__KeywordEnd, "_KeywordEnd"), \
 	TOKEN_KIND(Token_Count, "")
 
@@ -141,11 +149,10 @@ i32 token_pos_cmp(TokenPos a, TokenPos b) {
 	return (a.line < b.line) ? -1 : +1;
 }
 
-bool token_pos_are_equal(TokenPos a, TokenPos b) {
+bool token_pos_eq(TokenPos a, TokenPos b) {
 	return token_pos_cmp(a, b) == 0;
 }
 
-// NOTE(bill): Text is UTF-8, thus why u8 and not char
 typedef struct Token {
 	TokenKind kind;
 	String string;
@@ -153,10 +160,10 @@ typedef struct Token {
 } Token;
 
 Token empty_token = {Token_Invalid};
-Token blank_token = {Token_Identifier, {cast(u8 *)"_", 1}};
+Token blank_token = {Token_Ident, {cast(u8 *)"_", 1}};
 
 Token make_token_ident(String s) {
-	Token t = {Token_Identifier, s};
+	Token t = {Token_Ident, s};
 	return t;
 }
 
@@ -174,68 +181,75 @@ void init_global_error_collector(void) {
 	gb_mutex_init(&global_error_collector.mutex);
 }
 
-
-void warning(Token token, char *fmt, ...) {
+void warning_va(Token token, char *fmt, va_list va) {
 	gb_mutex_lock(&global_error_collector.mutex);
-
 	global_error_collector.warning_count++;
 	// NOTE(bill): Duplicate error, skip it
-	if (!token_pos_are_equal(global_error_collector.prev, token.pos)) {
-		va_list va;
-
+	if (!token_pos_eq(global_error_collector.prev, token.pos)) {
 		global_error_collector.prev = token.pos;
-
-		va_start(va, fmt);
 		gb_printf_err("%.*s(%td:%td) Warning: %s\n",
 		              LIT(token.pos.file), token.pos.line, token.pos.column,
 		              gb_bprintf_va(fmt, va));
-		va_end(va);
 	}
 
 	gb_mutex_unlock(&global_error_collector.mutex);
 }
 
-void error(Token token, char *fmt, ...) {
+void error_va(Token token, char *fmt, va_list va) {
 	gb_mutex_lock(&global_error_collector.mutex);
-
 	global_error_collector.count++;
 	// NOTE(bill): Duplicate error, skip it
-	if (!token_pos_are_equal(global_error_collector.prev, token.pos)) {
-		va_list va;
-
+	if (!token_pos_eq(global_error_collector.prev, token.pos)) {
 		global_error_collector.prev = token.pos;
-
-		va_start(va, fmt);
 		gb_printf_err("%.*s(%td:%td) %s\n",
 		              LIT(token.pos.file), token.pos.line, token.pos.column,
 		              gb_bprintf_va(fmt, va));
-		va_end(va);
+	} else if (token.pos.line == 0) {
+		gb_printf_err("Error: %s\n", gb_bprintf_va(fmt, va));
 	}
 
 	gb_mutex_unlock(&global_error_collector.mutex);
 }
 
-void syntax_error(Token token, char *fmt, ...) {
+void syntax_error_va(Token token, char *fmt, va_list va) {
 	gb_mutex_lock(&global_error_collector.mutex);
-
 	global_error_collector.count++;
 	// NOTE(bill): Duplicate error, skip it
-	if (!token_pos_are_equal(global_error_collector.prev, token.pos)) {
-		va_list va;
-
+	if (!token_pos_eq(global_error_collector.prev, token.pos)) {
 		global_error_collector.prev = token.pos;
-
-		va_start(va, fmt);
 		gb_printf_err("%.*s(%td:%td) Syntax Error: %s\n",
 		              LIT(token.pos.file), token.pos.line, token.pos.column,
 		              gb_bprintf_va(fmt, va));
-		va_end(va);
+	} else if (token.pos.line == 0) {
+		gb_printf_err("Error: %s\n", gb_bprintf_va(fmt, va));
 	}
 
 	gb_mutex_unlock(&global_error_collector.mutex);
 }
 
 
+void warning(Token token, char *fmt, ...) {
+	va_list va;
+	va_start(va, fmt);
+	warning_va(token, fmt, va);
+	va_end(va);
+}
+
+void error(Token token, char *fmt, ...) {
+	va_list va;
+	va_start(va, fmt);
+	error_va(token, fmt, va);
+	va_end(va);
+}
+
+void syntax_error(Token token, char *fmt, ...) {
+	va_list va;
+	va_start(va, fmt);
+	syntax_error_va(token, fmt, va);
+	va_end(va);
+}
+
+
 void compiler_error(char *fmt, ...) {
 	va_list va;
 
@@ -281,6 +295,14 @@ typedef enum TokenizerInitError {
 } TokenizerInitError;
 
 
+typedef struct TokenizerState {
+	Rune  curr_rune;   // current character
+	u8 *  curr;        // character pos
+	u8 *  read_curr;   // pos from start
+	u8 *  line;        // current line pos
+	isize line_count;
+} TokenizerState;
+
 typedef struct Tokenizer {
 	String fullpath;
 	u8 *start;
@@ -297,11 +319,31 @@ typedef struct Tokenizer {
 } Tokenizer;
 
 
+TokenizerState save_tokenizer_state(Tokenizer *t) {
+	TokenizerState state = {0};
+	state.curr_rune  = t->curr_rune;
+	state.curr       = t->curr;
+	state.read_curr  = t->read_curr;
+	state.line       = t->line;
+	state.line_count = t->line_count;
+	return state;
+}
+
+void restore_tokenizer_state(Tokenizer *t, TokenizerState *state) {
+	 t->curr_rune  = state->curr_rune;
+	 t->curr       = state->curr;
+	 t->read_curr  = state->read_curr;
+	 t->line       = state->line;
+	 t->line_count = state->line_count;
+}
+
+
 void tokenizer_err(Tokenizer *t, char *msg, ...) {
 	va_list va;
 	isize column = t->read_curr - t->line+1;
-	if (column < 1)
+	if (column < 1) {
 		column = 1;
+	}
 
 	gb_printf_err("%.*s(%td:%td) Syntax error: ", LIT(t->fullpath), t->line_count, column);
 
@@ -401,7 +443,10 @@ gb_inline void destroy_tokenizer(Tokenizer *t) {
 }
 
 void tokenizer_skip_whitespace(Tokenizer *t) {
-	while (rune_is_whitespace(t->curr_rune)) {
+	while (t->curr_rune == ' ' ||
+	       t->curr_rune == '\t' ||
+	       t->curr_rune == '\n' ||
+	       t->curr_rune == '\r') {
 		advance_to_next_rune(t);
 	}
 }
@@ -417,12 +462,15 @@ gb_inline i32 digit_value(Rune r) {
 	return 16; // NOTE(bill): Larger than highest possible
 }
 
-gb_inline void scan_mantissa(Tokenizer *t, i32 base) {
-	// TODO(bill): Allow for underscores in numbers as a number separator
-	// TODO(bill): Is this a good idea?
-	// while (digit_value(t->curr_rune) < base || t->curr_rune == '_')
-	while (digit_value(t->curr_rune) < base) {
-		advance_to_next_rune(t);
+gb_inline void scan_mantissa(Tokenizer *t, i32 base, bool allow_underscore) {
+	if (allow_underscore) {
+		while (digit_value(t->curr_rune) < base || t->curr_rune == '_') {
+			advance_to_next_rune(t);
+		}
+	} else {
+		while (digit_value(t->curr_rune) < base) {
+			advance_to_next_rune(t);
+		}
 	}
 }
 
@@ -437,7 +485,7 @@ Token scan_number_to_token(Tokenizer *t, bool seen_decimal_point) {
 
 	if (seen_decimal_point) {
 		token.kind = Token_Float;
-		scan_mantissa(t, 10);
+		scan_mantissa(t, 10, true);
 		goto exponent;
 	}
 
@@ -446,27 +494,31 @@ Token scan_number_to_token(Tokenizer *t, bool seen_decimal_point) {
 		advance_to_next_rune(t);
 		if (t->curr_rune == 'b') { // Binary
 			advance_to_next_rune(t);
-			scan_mantissa(t, 2);
-			if (t->curr - prev <= 2)
+			scan_mantissa(t, 2, true);
+			if (t->curr - prev <= 2) {
 				token.kind = Token_Invalid;
+			}
 		} else if (t->curr_rune == 'o') { // Octal
 			advance_to_next_rune(t);
-			scan_mantissa(t, 8);
-			if (t->curr - prev <= 2)
+			scan_mantissa(t, 8, true);
+			if (t->curr - prev <= 2) {
 				token.kind = Token_Invalid;
+			}
 		} else if (t->curr_rune == 'd') { // Decimal
 			advance_to_next_rune(t);
-			scan_mantissa(t, 10);
-			if (t->curr - prev <= 2)
+			scan_mantissa(t, 10, true);
+			if (t->curr - prev <= 2) {
 				token.kind = Token_Invalid;
+			}
 		} else if (t->curr_rune == 'x') { // Hexadecimal
 			advance_to_next_rune(t);
-			scan_mantissa(t, 16);
-			if (t->curr - prev <= 2)
+			scan_mantissa(t, 16, true);
+			if (t->curr - prev <= 2) {
 				token.kind = Token_Invalid;
+			}
 		} else {
 			seen_decimal_point = false;
-			scan_mantissa(t, 10);
+			scan_mantissa(t, 10, true);
 
 			if (t->curr_rune == '.' || t->curr_rune == 'e' || t->curr_rune == 'E') {
 				seen_decimal_point = true;
@@ -478,13 +530,20 @@ Token scan_number_to_token(Tokenizer *t, bool seen_decimal_point) {
 		return token;
 	}
 
-	scan_mantissa(t, 10);
+	scan_mantissa(t, 10, true);
 
 fraction:
 	if (t->curr_rune == '.') {
-		token.kind = Token_Float;
+		// HACK(bill): This may be inefficient
+		TokenizerState state = save_tokenizer_state(t);
 		advance_to_next_rune(t);
-		scan_mantissa(t, 10);
+		if (digit_value(t->curr_rune) >= 10) {
+			// TODO(bill): Clean up this shit
+			restore_tokenizer_state(t, &state);
+			goto end;
+		}
+		token.kind = Token_Float;
+		scan_mantissa(t, 10, true);
 	}
 
 exponent:
@@ -494,9 +553,10 @@ exponent:
 		if (t->curr_rune == '-' || t->curr_rune == '+') {
 			advance_to_next_rune(t);
 		}
-		scan_mantissa(t, 10);
+		scan_mantissa(t, 10, false);
 	}
 
+end:
 	token.string.len = t->curr - token.string.text;
 	return token;
 }
@@ -605,19 +665,63 @@ gb_inline TokenKind token_kind_dub_eq(Tokenizer *t, Rune sing_rune, TokenKind si
 	return sing;
 }
 
-Token tokenizer_get_token(Tokenizer *t) {
-	Token token = {0};
-	Rune curr_rune;
+void tokenizer__fle_update(Tokenizer *t) {
+	t->curr_rune = '/';
+	t->curr      = t->curr-1;
+	t->read_curr = t->curr+1;
+	advance_to_next_rune(t);
+}
 
+// NOTE(bill): needed if comment is straight after a "semicolon"
+bool tokenizer_find_line_end(Tokenizer *t) {
+	while (t->curr_rune == '/' || t->curr_rune == '*') {
+		if (t->curr_rune == '/') {
+			tokenizer__fle_update(t);
+			return true;
+		}
+
+		advance_to_next_rune(t);
+		while (t->curr_rune >= 0) {
+			Rune r = t->curr_rune;
+			if (r == '\n') {
+				tokenizer__fle_update(t);
+				return true;
+			}
+			advance_to_next_rune(t);
+			if (r == '*' && t->curr_rune == '/') {
+				advance_to_next_rune(t);
+				break;
+			}
+		}
+
+		tokenizer_skip_whitespace(t);
+		if (t->curr_rune < 0 || t->curr_rune == '\n') {
+			tokenizer__fle_update(t);
+			return true;
+		}
+		if (t->curr_rune != '/') {
+			tokenizer__fle_update(t);
+			return false;
+		}
+		advance_to_next_rune(t);
+	}
+
+	tokenizer__fle_update(t);
+	return false;
+}
+
+Token tokenizer_get_token(Tokenizer *t) {
 	tokenizer_skip_whitespace(t);
+
+	Token token = {0};
 	token.string = make_string(t->curr, 1);
 	token.pos.file = t->fullpath;
 	token.pos.line = t->line_count;
 	token.pos.column = t->curr - t->line + 1;
 
-	curr_rune = t->curr_rune;
+	Rune curr_rune = t->curr_rune;
 	if (rune_is_letter(curr_rune)) {
-		token.kind = Token_Identifier;
+		token.kind = Token_Ident;
 		while (rune_is_letter(t->curr_rune) || rune_is_digit(t->curr_rune)) {
 			advance_to_next_rune(t);
 		}
@@ -626,7 +730,7 @@ Token tokenizer_get_token(Tokenizer *t) {
 
 		// NOTE(bill): All keywords are > 1
 		if (token.string.len > 1) {
-			if (str_eq(token.string, token_strings[Token_as])) {
+			/* if (str_eq(token.string, token_strings[Token_as])) {
 				token.kind = Token_as;
 			} else if (str_eq(token.string, token_strings[Token_transmute])) {
 				token.kind = Token_transmute;
@@ -634,7 +738,7 @@ Token tokenizer_get_token(Tokenizer *t) {
 				token.kind = Token_down_cast;
 			} else if (str_eq(token.string, token_strings[Token_union_cast])) {
 				token.kind = Token_union_cast;
-			} else {
+			} else  */{
 				for (i32 k = Token__KeywordBegin+1; k < Token__KeywordEnd; k++) {
 					if (str_eq(token.string, token_strings[k])) {
 						token.kind = cast(TokenKind)k;
@@ -741,42 +845,72 @@ Token tokenizer_get_token(Tokenizer *t) {
 
 		case '.':
 			token.kind = Token_Period; // Default
-			if (gb_is_between(t->curr_rune, '0', '9')) { // Might be a number
-				token = scan_number_to_token(t, true);
-			} else if (t->curr_rune == '.') { // Could be an ellipsis
+			if (t->curr_rune == '.') { // Could be an ellipsis
 				advance_to_next_rune(t);
-				token.kind = Token_Ellipsis;
 				if (t->curr_rune == '<') {
 					advance_to_next_rune(t);
-					token.kind = Token_RangeExclusive;
+					token.kind = Token_HalfOpenRange;
+				} else if (t->curr_rune == '.') {
+					advance_to_next_rune(t);
+					token.kind = Token_Ellipsis;
 				}
 			}
 			break;
 
-		case '#': token.kind = Token_Hash;         break;
-		case '@': token.kind = Token_At;           break;
-		case '^': token.kind = Token_Pointer;      break;
-		case '?': token.kind = Token_Maybe;        break;
-		case ';': token.kind = Token_Semicolon;    break;
-		case ',': token.kind = Token_Comma;        break;
-		case '(': token.kind = Token_OpenParen;    break;
-		case ')': token.kind = Token_CloseParen;   break;
-		case '[': token.kind = Token_OpenBracket;  break;
-		case ']': token.kind = Token_CloseBracket; break;
-		case '{': token.kind = Token_OpenBrace;    break;
-		case '}': token.kind = Token_CloseBrace;   break;
-		case ':': token.kind = Token_Colon;        break;
+		case '#':
+			token.kind = Token_Hash;
+			break;
+		case '@':
+			token.kind = Token_At;
+			break;
+		case '^':
+			token.kind = Token_Pointer;
+			break;
+		case '?':
+			token.kind = Token_Maybe;
+			break;
+		case ';':
+			token.kind = Token_Semicolon;
+			break;
+		case ',':
+			token.kind = Token_Comma;
+			break;
+		case ':':
+			token.kind = Token_Colon;
+			break;
+		case '(':
+			token.kind = Token_OpenParen;
+			break;
+		case ')':
+			token.kind = Token_CloseParen;
+			break;
+		case '[':
+			token.kind = Token_OpenBracket;
+			break;
+		case ']':
+			token.kind = Token_CloseBracket;
+			break;
+		case '{':
+			token.kind = Token_OpenBrace;
+			break;
+		case '}':
+			token.kind = Token_CloseBrace;
+			break;
 
 		case '*': token.kind = token_kind_variant2(t, Token_Mul,   Token_MulEq);     break;
 		case '%': token.kind = token_kind_variant2(t, Token_Mod,   Token_ModEq);     break;
 		case '=': token.kind = token_kind_variant2(t, Token_Eq,    Token_CmpEq);     break;
 		case '~': token.kind = token_kind_variant2(t, Token_Xor,   Token_XorEq);     break;
 		case '!': token.kind = token_kind_variant2(t, Token_Not,   Token_NotEq);     break;
-		case '+': token.kind = token_kind_variant3(t, Token_Add,   Token_AddEq, '+', Token_Increment); break;
-		case '-': token.kind = token_kind_variant4(t, Token_Sub,   Token_SubEq, '-', Token_Decrement, '>', Token_ArrowRight); break;
+		case '+':
+			token.kind = token_kind_variant2(t, Token_Add, Token_AddEq);
+			break;
+		case '-':
+			token.kind = token_kind_variant3(t, Token_Sub, Token_SubEq, '>', Token_ArrowRight);
+			break;
 		case '/': {
 			if (t->curr_rune == '/') {
-				while (t->curr_rune != '\n') {
+				while (t->curr_rune != '\n' && t->curr_rune != GB_RUNE_EOF) {
 					advance_to_next_rune(t);
 				}
 				token.kind = Token_Comment;