Fix match statements for the new AstNodeArray type

This commit is contained in:
Ginger Bill
2016-09-08 18:28:18 +01:00
parent c6d02e4778
commit 56dd12c54c
12 changed files with 1530 additions and 187 deletions
+8 -8
View File
@@ -183,10 +183,10 @@ print_any_to_buffer :: proc(buf: ^[]byte, arg: any) {
u: uint = 0;
if arg.data != null {
match info.size {
case 1: u = (arg.data as ^u8)^ as uint
case 2: u = (arg.data as ^u16)^ as uint
case 4: u = (arg.data as ^u32)^ as uint
case 8: u = (arg.data as ^u64)^ as uint
case 1: u = (arg.data as ^u8)^ as uint
case 2: u = (arg.data as ^u16)^ as uint
case 4: u = (arg.data as ^u32)^ as uint
case 8: u = (arg.data as ^u64)^ as uint
case 16: u = (arg.data as ^u128)^ as uint
}
}
@@ -195,10 +195,10 @@ print_any_to_buffer :: proc(buf: ^[]byte, arg: any) {
v: int = 0;
if arg.data != null {
match info.size {
case 1: v = (arg.data as ^i8)^ as int
case 2: v = (arg.data as ^i16)^ as int
case 4: v = (arg.data as ^i32)^ as int
case 8: v = (arg.data as ^i64)^ as int
case 1: v = (arg.data as ^i8)^ as int
case 2: v = (arg.data as ^i16)^ as int
case 4: v = (arg.data as ^i32)^ as int
case 8: v = (arg.data as ^i64)^ as int
case 16: v = (arg.data as ^i128)^ as int
}
}
-2
View File
@@ -1,7 +1,5 @@
#load "basic.odin"
#load "math.odin"
main :: proc() {
a: any = 1
println(137, "Hello", 1.25, true)
}
+10 -9
View File
@@ -16,9 +16,7 @@ time_now :: proc() -> f64 {
win32_print_last_error :: proc() {
err_code := GetLastError() as int
if err_code != 0 {
print_string("GetLastError: ")
print_int(err_code)
print_string("\n")
println("GetLastError:", err_code)
}
}
@@ -46,7 +44,8 @@ make_window :: proc(title: string, msg, height: int, window_proc: WNDPROC) -> (W
class_name := "Win32-Odin-Window\x00"
c_class_name := ^class_name[0]
w.c_title = to_c_string(title)
// w.c_title = to_c_string(title)
w.c_title = "Title\x00" as []byte
instance := GetModuleHandleA(null)
@@ -59,6 +58,7 @@ make_window :: proc(title: string, msg, height: int, window_proc: WNDPROC) -> (W
};
if RegisterClassExA(^w.wc) == 0 {
win32_print_last_error( )
return w, false
}
@@ -129,6 +129,7 @@ run_game :: proc() {
return DefWindowProcA(hwnd, msg, wparam, lparam)
}
window, window_success := make_window("Odin Language Demo", 854, 480, win32_proc)
if !window_success {
return
@@ -155,7 +156,7 @@ run_game :: proc() {
_ = DispatchMessageA(^msg)
}
if is_key_down(VK_ESCAPE) {
if is_key_down(Key_Code.ESCAPE) {
running = false
}
@@ -163,10 +164,10 @@ run_game :: proc() {
SPEED :: 500
v: Vec2
if is_key_down(VK_RIGHT) { v[0] += 1 }
if is_key_down(VK_LEFT) { v[0] -= 1 }
if is_key_down(VK_UP) { v[1] += 1 }
if is_key_down(VK_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)
+900
View File
@@ -0,0 +1,900 @@
// Demo 002
#load "basic.odin"
#load "math.odin"
// #load "game.odin"
#thread_local tls_int: int
main :: proc() {
// Forenotes
// Semicolons are now optional
// Rule for when a semicolon is expected after a statement
// - If the next token is not on the same line
// - if the next token is a closing brace }
// - Otherwise, a semicolon is needed
//
// Expections:
// for, if, match
// if x := thing(); x < 123 {}
// for i := 0; i < 123; i++ {}
// Q: Should I use the new rule or go back to the old one without optional semicolons?
// #thread_local - see runtime.odin and above at `tls_int`
// #foreign_system_library - see win32.odin
// struct_compound_literals()
// enumerations()
// variadic_procedures()
// new_builtins()
// match_statement()
// namespacing()
// subtyping()
// tagged_unions()
}
struct_compound_literals :: proc() {
Thing :: type struct {
id: int
x: f32
name: string
}
{
t1: Thing
t1.id = 1
t3 := Thing{}
t4 := Thing{1, 2, "Fred"}
// t5 := Thing{1, 2}
t6 := Thing{
name = "Tom",
x = 23,
}
}
}
enumerations :: proc() {
{
Fruit :: type enum {
APPLE, // 0
BANANA, // 1
PEAR, // 2
}
f := Fruit.APPLE
// g12: int = Fruit.BANANA
g: int = Fruit.BANANA as int
// However, you can use enums are index values as _any_ integer allowed
}
{
Fruit1 :: type enum int {
APPLE,
BANANA,
PEAR,
}
Fruit2 :: type enum u8 {
APPLE,
BANANA,
PEAR,
}
Fruit3 :: type enum u8 {
APPLE = 1,
BANANA, // 2
PEAR = 5,
TOMATO, // 6
}
}
// Q: remove the need for `type` if it's a record (struct/enum/raw_union/union)?
}
variadic_procedures :: proc() {
print_ints :: proc(args: ..int) {
for i := 0; i < len(args); i++ {
if i > 0 {
print_string(", ")
}
print_int(args[i])
}
}
print_ints(); // nl()
print_ints(1); nl()
print_ints(1, 2, 3); nl()
print_prefix_f32s :: proc(prefix: string, args: ..f32) {
print_string(prefix)
print_string(": ")
for i := 0; i < len(args); i++ {
if i > 0 {
print_string(", ")
}
print_f32(args[i])
}
}
print_prefix_f32s("a"); nl()
print_prefix_f32s("b", 1); nl()
print_prefix_f32s("c", 1, 2, 3); nl()
// Internally, the variadic procedures get allocated to an array on the stack,
// and this array is passed a slice
// This is first step for a `print` procedure but I do not have an `any` type
// yet as this requires a few other things first - i.e. introspection
// NOTE(bill): I haven't yet added the feature of expanding a slice or array into
// a variadic a parameter but it's pretty trivial to add
}
new_builtins :: proc() {
{
a := new(int)
b := new_slice(int, 12)
c := new_slice(int, 12, 16)
defer delete(a)
defer delete(b)
defer delete(c)
// NOTE(bill): These use the current context's allocator not the default allocator
// see runtime.odin
// Q: Should this be `free` rather than `delete` and should I overload it for slices too?
{
prev_context := context
defer context = prev_context
// Q: Should I add a `push_context` feature to the language?
context.allocator = __default_allocator()
a := new(int)
defer delete(a)
// Do whatever
}
}
{
a: int = 123
b: type_of_val(a) = 321
// NOTE(bill): This matches the current naming scheme
// size_of
// align_of
// offset_of
//
// size_of_val
// align_of_val
// offset_of_val
// type_of_val
}
{
// Compile time assert
COND :: true
assert(COND)
// assert(!COND)
// Runtime assert
x := true
assert(x)
// assert(!x)
}
{
x: ^u32 = null;
y := ptr_offset(x, 100)
z := ptr_sub(y, x)
w := slice_ptr(x, 12)
t := slice_ptr(x, 12, 16)
// NOTE(bill): These are here because I've removed:
// pointer arithmetic
// pointer indexing
// pointer slicing
// Reason
a: [16]int
a[1] = 1;
b := ^a
// Auto pointer deref
// consistent with record members
assert(b[1] == 1)
// Q: Should I add them back in at the cost of inconsitency?
}
{
a, b := -1, 2
print_int(min(a, b)); nl()
print_int(max(a, b)); nl()
print_int(abs(a)); nl()
// These work at compile time too
A :: -1
B :: 2
C :: min(A, B)
D :: max(A, B)
E :: abs(A)
print_int(C); nl()
print_int(D); nl()
print_int(E); nl()
}
}
match_statement :: proc() {
// NOTE(bill): `match` statements are similar to `switch` statements
// in other languages but there are few differences
{
match x := 5; x {
case 1: // cases must be constant expression
print_string("1!\n")
// break by default
case 2:
s := "2!\n"; // Each case has its own scope
print_string(s)
break // explicit break
case 3, 4: // multiple cases
print_string("3 or 4!\n")
case 5:
print_string("5!\n")
fallthrough // explicit fallthrough
default:
print_string("default!\n")
}
match x := 1.5; x {
case 1.5:
print_string("1.5!\n")
// break by default
case MATH_TAU:
print_string("τ!\n")
default:
print_string("default!\n")
}
match x := "Hello"; x {
case "Hello":
print_string("greeting\n")
// break by default
case "Goodbye":
print_string("farewell\n")
default:
print_string("???\n")
}
a := 53
match {
case a == 1:
print_string("one\n")
case a == 2:
print_string("a couple\n")
case a < 7, a == 7:
print_string("a few\n")
case a < 12: // intentional bug
print_string("several\n")
case a >= 12 && a < 100:
print_string("dozens\n")
case a >= 100 && a < 1000:
print_string("hundreds\n")
default:
print_string("a fuck ton\n")
}
// Identical to this
b := 53
if b == 1 {
print_string("one\n")
} else if b == 2 {
print_string("a couple\n")
} else if b < 7 || b == 7 {
print_string("a few\n")
} else if b < 12 { // intentional bug
print_string("several\n")
} else if b >= 12 && b < 100 {
print_string("dozens\n")
} else if b >= 100 && b < 1000 {
print_string("hundreds\n")
} else {
print_string("a fuck ton\n")
}
// However, match statements allow for `break` and `fallthrough` unlike
// an if statement
}
}
Vector3 :: type struct {
x, y, z: f32
}
print_floats :: proc(args: ..f32) {
for i := 0; i < len(args); i++ {
if i > 0 {
print_string(", ")
}
print_f32(args[i])
}
print_nl()
}
namespacing :: proc() {
{
Thing :: type struct {
x: f32
name: string
}
a: Thing
a.x = 3
{
Thing :: type struct {
y: int
test: bool
}
b: Thing // Uses this scope's Thing
b.test = true
}
}
{
Entity :: type struct {
Guid :: type int
Nested :: type struct {
MyInt :: type int
i: int
}
CONSTANT :: 123
guid: Guid
name: string
pos: Vector3
vel: Vector3
nested: Nested
}
guid: Entity.Guid = Entity.CONSTANT
i: Entity.Nested.MyInt
{
using Entity
guid: Guid = CONSTANT
using Nested
i: MyInt
}
{
using Entity.Nested
guid: Entity.Guid = Entity.CONSTANT
i: MyInt
}
{
e: Entity
using e
guid = 27832
name = "Bob"
print_int(e.guid as int); nl()
print_string(e.name); nl()
}
{
using e: Entity
guid = 78456
name = "Thing"
print_int(e.guid as int); nl()
print_string(e.name); nl()
}
}
{
Entity :: type struct {
Guid :: type int
Nested :: type struct {
MyInt :: type int
i: int
}
CONSTANT :: 123
guid: Guid
name: string
using pos: Vector3
vel: Vector3
using nested: ^Nested
}
e := Entity{nested = new(Entity.Nested)}
e.x = 123
e.i = Entity.CONSTANT
}
{
Entity :: type struct {
position: Vector3
}
print_pos_1 :: proc(entity: ^Entity) {
print_string("print_pos_1: ")
print_floats(entity.position.x, entity.position.y, entity.position.z)
}
print_pos_2 :: proc(entity: ^Entity) {
using entity
print_string("print_pos_2: ")
print_floats(position.x, position.y, position.z)
}
print_pos_3 :: proc(using entity: ^Entity) {
print_string("print_pos_3: ")
print_floats(position.x, position.y, position.z)
}
print_pos_4 :: proc(using entity: ^Entity) {
using position
print_string("print_pos_4: ")
print_floats(x, y, z)
}
e := Entity{position = Vector3{1, 2, 3}}
print_pos_1(^e)
print_pos_2(^e)
print_pos_3(^e)
print_pos_4(^e)
// This is similar to C++'s `this` pointer that is implicit and only available in methods
}
}
subtyping :: proc() {
{
// C way for subtyping/subclassing
Entity :: type struct {
position: Vector3
}
Frog :: type struct {
entity: Entity
jump_height: f32
}
f: Frog
f.entity.position = Vector3{1, 2, 3}
using f.entity
position = Vector3{1, 2, 3}
}
{
// C++ way for subtyping/subclassing
Entity :: type struct {
position: Vector3
}
Frog :: type struct {
using entity: Entity
jump_height: f32
}
f: Frog
f.position = Vector3{1, 2, 3}
print_pos :: proc(using entity: Entity) {
print_string("print_pos: ")
print_floats(position.x, position.y, position.z)
}
print_pos(f.entity)
print_pos(f)
// Subtype Polymorphism
}
{
// More than C++ way for subtyping/subclassing
Entity :: type struct {
position: Vector3
}
Frog :: type struct {
jump_height: f32
using entity: ^Entity // Doesn't have to be first member!
}
f: Frog
f.entity = new(Entity)
f.position = Vector3{1, 2, 3}
print_pos :: proc(using entity: ^Entity) {
print_string("print_pos: ")
print_floats(position.x, position.y, position.z)
}
print_pos(f.entity)
print_pos(^f)
print_pos(f)
}
{
// More efficient subtyping
Entity :: type struct {
position: Vector3
}
Frog :: type struct {
jump_height: f32
using entity: ^Entity
}
MAX_ENTITES :: 64
entities: [MAX_ENTITES]Entity
entity_count := 0
next_entity :: proc(entities: []Entity, entity_count: ^int) -> ^Entity {
e := ^entities[entity_count^]
entity_count^++
return e
}
f: Frog
f.entity = next_entity(entities[:], ^entity_count)
f.position = Vector3{3, 4, 6}
using f.position
print_floats(x, y, z)
}
{
// Down casting
Entity :: type struct {
position: Vector3
}
Frog :: type struct {
jump_height: f32
using entity: Entity
}
f: Frog
f.jump_height = 564
e := ^f.entity
frog := e down_cast ^Frog
print_string("down_cast: ")
print_f32(frog.jump_height); nl()
// NOTE(bill): `down_cast` is unsafe and there are not check are compile time or run time
// Q: Should I completely remove `down_cast` as I added it in about 30 minutes
}
{
// Multiple "inheritance"/subclassing
Entity :: type struct {
position: Vector3
}
Climber :: type struct {
speed: f32
}
Frog :: type struct {
using entity: Entity
using climber: Climber
}
}
}
tagged_unions :: proc() {
{
EntityKind :: type enum {
INVALID,
FROG,
GIRAFFE,
HELICOPTER,
}
Entity :: type struct {
kind: EntityKind
using data: raw_union {
frog: struct {
jump_height: f32
colour: u32
}
giraffe: struct {
neck_length: f32
spot_count: int
}
helicopter: struct {
blade_count: int
weight: f32
pilot_name: string
}
}
}
e: Entity
e.kind = EntityKind.FROG
e.frog.jump_height = 12
f: type_of_val(e.frog);
// But this is very unsafe and extremely cumbersome to write
// In C++, I use macros to alleviate this but it's not a solution
}
{
Entity :: type union {
Frog: struct {
jump_height: f32
colour: u32
}
Giraffe: struct {
neck_length: f32
spot_count: int
}
Helicopter: struct {
blade_count: int
weight: f32
pilot_name: string
}
}
using Entity
f1: Frog = Frog{12, 0xff9900}
f2: Entity = Frog{12, 0xff9900} // Implicit cast
f3 := Frog{12, 0xff9900} as Entity // Explicit cast
// f3.Frog.jump_height = 12 // There are "members" of a union
e, f, g, h: Entity
f = Frog{12, 0xff9900}
g = Giraffe{2.1, 23}
h = Helicopter{4, 1000, "Frank"}
// Requires a pointer to the union
// `x` will be a pointer to type of the case
match type x : ^f {
case Frog:
print_string("Frog!\n")
print_f32(x.jump_height); nl()
x.jump_height = 3
print_f32(x.jump_height); nl()
case Giraffe:
print_string("Giraffe!\n")
case Helicopter:
print_string("ROFLCOPTER!\n")
default:
print_string("invalid entity\n")
}
// Q: Allow for a non pointer version with takes a copy instead?
// Or it takes the pointer the data and not a copy
fp := ^f as ^Frog // Unsafe
print_f32(fp.jump_height); nl()
// Internals of a tagged union
/*
struct {
data: [size_of_biggest_tag]u8
tag_index: int
}
*/
// This is to allow for pointer casting if needed
// Advantage over subtyping version
MAX_ENTITES :: 64
entities: [MAX_ENTITES]Entity
entities[0] = Frog{}
entities[1] = Helicopter{}
// etc.
}
{
// Transliteration of code from this actual compiler
// Some stuff is missing
Type :: type struct {}
Scope :: type struct {}
Token :: type struct {}
AstNode :: type struct {}
ExactValue :: type struct {}
EntityKind :: type enum {
Invalid,
Constant,
Variable,
UsingVariable,
TypeName,
Procedure,
Builtin,
Count,
}
Entity :: type struct {
Guid :: type i64
kind: EntityKind
guid: Guid
scope: ^Scope
token: Token
type_: ^Type
using data: raw_union {
Constant: struct {
value: ExactValue
}
Variable: struct {
visited: bool // Cycle detection
used: bool // Variable is used
is_field: bool // Is struct field
anonymous: bool // Variable is an anonymous
}
UsingVariable: struct {
}
TypeName: struct {
}
Procedure: struct {
used: bool
}
Builtin: struct {
id: int
}
}
}
// Plus all the constructing procedures that go along with them!!!!
// It's a nightmare
}
{
Type :: type struct {}
Scope :: type struct {}
Token :: type struct {}
AstNode :: type struct {}
ExactValue :: type struct {}
Entity :: type union {
Base :: type struct {
Guid :: type i64
guid: Guid
scope: ^Scope
token: Token
type_: ^Type
}
Constant: struct {
using base: Base
value: ExactValue
}
Variable: struct {
using base: Base
visited: bool // Cycle detection
used: bool // Variable is used
is_field: bool // Is struct field
anonymous: bool // Variable is an anonymous
}
UsingVariable: struct {
using base: Base
}
TypeName: struct {
using base: Base
}
Procedure: struct {
using base: Base
used: bool
}
Builtin: struct {
using base: Base
id: int
}
}
using Entity
e: Entity
e = Variable{
base = Base{},
used = true,
anonymous = false,
}
// Q: Allow a "base" type to be added to a union?
// Or even `using` on union to get the same properties?
}
{
// `Raw` unions still have uses, especially for mathematic types
Vector2 :: type raw_union {
using xy_: struct { x, y: f32 }
e: [2]f32
v: {2}f32
}
Vector3 :: type raw_union {
using xyz_: struct { x, y, z: f32 }
xy: Vector2
e: [3]f32
v: {3}f32
}
v2: Vector2
v2.x = 1
v2.e[0] = 1
v2.v[0] = 1
v3: Vector3
v3.x = 1
v3.e[0] = 1
v3.v[0] = 1
v3.xy.x = 1
}
}
nl :: proc() { print_nl() }
+412
View File
@@ -0,0 +1,412 @@
#load "win32.odin"
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"
fmuladd_f32 :: proc(a, b, c: f32) -> f32 #foreign "llvm.fmuladd.f32"
fmuladd_f64 :: proc(a, b, c: f64) -> f64 #foreign "llvm.fmuladd.f64"
// TODO(bill): make custom heap procedures
heap_alloc :: proc(len: int) -> rawptr #foreign "malloc"
heap_dealloc :: proc(ptr: rawptr) #foreign "free"
memory_zero :: proc(data: rawptr, len: int) {
d := slice_ptr(data as ^byte, len)
for i := 0; i < len; i++ {
d[i] = 0
}
}
memory_compare :: proc(dst, src: rawptr, len: int) -> int {
s1, s2: ^byte = dst, src
for i := 0; i < len; i++ {
a := ptr_offset(s1, i)^
b := ptr_offset(s2, i)^
if a != b {
return (a - b) as int
}
}
return 0
}
memory_copy :: proc(dst, src: rawptr, n: int) #inline {
if dst == src {
return
}
v128b :: type {4}u32
assert(align_of(v128b) == 16)
d, s: ^byte = dst, src
for ; s as uint % 16 != 0 && n != 0; n-- {
d^ = s^
d, s = ptr_offset(d, 1), ptr_offset(s, 1)
}
if d as uint % 16 == 0 {
for ; n >= 16; d, s, n = ptr_offset(d, 16), ptr_offset(s, 16), n-16 {
(d as ^v128b)^ = (s as ^v128b)^
}
if n&8 != 0 {
(d as ^u64)^ = (s as ^u64)^
d, s = ptr_offset(d, 8), ptr_offset(s, 8)
}
if n&4 != 0 {
(d as ^u32)^ = (s as ^u32)^;
d, s = ptr_offset(d, 4), ptr_offset(s, 4)
}
if n&2 != 0 {
(d as ^u16)^ = (s as ^u16)^
d, s = ptr_offset(d, 2), ptr_offset(s, 2)
}
if n&1 != 0 {
d^ = s^
d, s = ptr_offset(d, 1), ptr_offset(s, 1)
}
return;
}
// IMPORTANT NOTE(bill): Little endian only
LS :: proc(a, b: u32) -> u32 #inline { return a << b }
RS :: proc(a, b: u32) -> u32 #inline { return a >> b }
/* NOTE(bill): Big endian version
LS :: proc(a, b: u32) -> u32 #inline { return a >> b; }
RS :: proc(a, b: u32) -> u32 #inline { return a << b; }
*/
w, x: u32
if d as uint % 4 == 1 {
w = (s as ^u32)^
d^ = s^; d = ptr_offset(d, 1); s = ptr_offset(s, 1)
d^ = s^; d = ptr_offset(d, 1); s = ptr_offset(s, 1)
d^ = s^; d = ptr_offset(d, 1); s = ptr_offset(s, 1)
n -= 3
for n > 16 {
d32 := d as ^u32
s32 := ptr_offset(s, 1) as ^u32
x = s32^; d32^ = LS(w, 24) | RS(x, 8)
d32, s32 = ptr_offset(d32, 1), ptr_offset(s32, 1)
w = s32^; d32^ = LS(x, 24) | RS(w, 8)
d32, s32 = ptr_offset(d32, 1), ptr_offset(s32, 1)
x = s32^; d32^ = LS(w, 24) | RS(x, 8)
d32, s32 = ptr_offset(d32, 1), ptr_offset(s32, 1)
w = s32^; d32^ = LS(x, 24) | RS(w, 8)
d32, s32 = ptr_offset(d32, 1), ptr_offset(s32, 1)
d, s, n = ptr_offset(d, 16), ptr_offset(s, 16), n-16
}
} else if d as uint % 4 == 2 {
w = (s as ^u32)^
d^ = s^; d = ptr_offset(d, 1); s = ptr_offset(s, 1)
d^ = s^; d = ptr_offset(d, 1); s = ptr_offset(s, 1)
n -= 2
for n > 17 {
d32 := d as ^u32
s32 := ptr_offset(s, 2) as ^u32
x = s32^; d32^ = LS(w, 16) | RS(x, 16)
d32, s32 = ptr_offset(d32, 1), ptr_offset(s32, 1)
w = s32^; d32^ = LS(x, 16) | RS(w, 16)
d32, s32 = ptr_offset(d32, 1), ptr_offset(s32, 1)
x = s32^; d32^ = LS(w, 16) | RS(x, 16)
d32, s32 = ptr_offset(d32, 1), ptr_offset(s32, 1)
w = s32^; d32^ = LS(x, 16) | RS(w, 16)
d32, s32 = ptr_offset(d32, 1), ptr_offset(s32, 1)
d, s, n = ptr_offset(d, 16), ptr_offset(s, 16), n-16
}
} else if d as uint % 4 == 3 {
w = (s as ^u32)^
d^ = s^
n -= 1
for n > 18 {
d32 := d as ^u32
s32 := ptr_offset(s, 3) as ^u32
x = s32^; d32^ = LS(w, 8) | RS(x, 24)
d32, s32 = ptr_offset(d32, 1), ptr_offset(s32, 1)
w = s32^; d32^ = LS(x, 8) | RS(w, 24)
d32, s32 = ptr_offset(d32, 1), ptr_offset(s32, 1)
x = s32^; d32^ = LS(w, 8) | RS(x, 24)
d32, s32 = ptr_offset(d32, 1), ptr_offset(s32, 1)
w = s32^; d32^ = LS(x, 8) | RS(w, 24)
d32, s32 = ptr_offset(d32, 1), ptr_offset(s32, 1)
d, s, n = ptr_offset(d, 16), ptr_offset(s, 16), n-16
}
}
if n&16 != 0 {
(d as ^v128b)^ = (s as ^v128b)^
d, s = ptr_offset(d, 16), ptr_offset(s, 16)
}
if n&8 != 0 {
(d as ^u64)^ = (s as ^u64)^
d, s = ptr_offset(d, 8), ptr_offset(s, 8)
}
if n&4 != 0 {
(d as ^u32)^ = (s as ^u32)^;
d, s = ptr_offset(d, 4), ptr_offset(s, 4)
}
if n&2 != 0 {
(d as ^u16)^ = (s as ^u16)^
d, s = ptr_offset(d, 2), ptr_offset(s, 2)
}
if n&1 != 0 {
d^ = s^
}
}
memory_move :: proc(dst, src: rawptr, n: int) #inline {
d, s: ^byte = dst, src
if d == s {
return
}
if d >= ptr_offset(s, n) || ptr_offset(d, n) <= s {
memory_copy(d, s, n)
return
}
// TODO(bill): Vectorize the shit out of this
if d < s {
if s as int % size_of(int) == d as int % size_of(int) {
for d as int % size_of(int) != 0 {
if n == 0 {
return
}
n--
d^ = s^
d, s = ptr_offset(d, 1), ptr_offset(s, 1)
}
di, si := d as ^int, s as ^int
for n >= size_of(int) {
di^ = si^
di, si = ptr_offset(di, 1), ptr_offset(si, 1)
n -= size_of(int)
}
}
for ; n > 0; n-- {
d^ = s^
d, s = ptr_offset(d, 1), ptr_offset(s, 1)
}
} else {
if s as int % size_of(int) == d as int % size_of(int) {
for ptr_offset(d, n) as int % size_of(int) != 0 {
if n == 0 {
return
}
n--
d^ = s^
d, s = ptr_offset(d, 1), ptr_offset(s, 1)
}
for n >= size_of(int) {
n -= size_of(int)
di := ptr_offset(d, n) as ^int
si := ptr_offset(s, n) as ^int
di^ = si^
}
for ; n > 0; n-- {
d^ = s^
d, s = ptr_offset(d, 1), ptr_offset(s, 1)
}
}
for n > 0 {
n--
dn := ptr_offset(d, n)
sn := ptr_offset(s, n)
dn^ = sn^
}
}
}
__string_eq :: proc(a, b: string) -> bool {
if len(a) != len(b) {
return false
}
if ^a[0] == ^b[0] {
return true
}
return memory_compare(^a[0], ^b[0], len(a)) == 0
}
__string_cmp :: proc(a, b : string) -> int {
min_len := len(a)
if len(b) < min_len {
min_len = len(b)
}
for i := 0; i < min_len; i++ {
x := a[i]
y := b[i]
if x < y {
return -1
} else if x > y {
return +1
}
}
if len(a) < len(b) {
return -1
} else if len(a) > len(b) {
return +1
}
return 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 }
Allocation_Mode :: type enum {
ALLOC,
DEALLOC,
DEALLOC_ALL,
RESIZE,
}
Allocator_Proc :: type proc(allocator_data: rawptr, mode: Allocation_Mode,
size, alignment: int,
old_memory: rawptr, old_size: int, flags: u64) -> rawptr
Allocator :: type struct {
procedure: Allocator_Proc;
data: rawptr
}
Context :: type struct {
thread_ptr: rawptr
user_data: rawptr
user_index: int
allocator: Allocator
}
#thread_local context: Context
DEFAULT_ALIGNMENT :: 2*size_of(int)
__check_context :: proc() {
if context.allocator.procedure == null {
context.allocator = __default_allocator()
}
if context.thread_ptr == null {
// TODO(bill):
// context.thread_ptr = current_thread_pointer()
}
}
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, Allocation_Mode.ALLOC, size, alignment, null, 0, 0)
}
dealloc :: proc(ptr: rawptr) #inline {
__check_context()
a := context.allocator
_ = a.procedure(a.data, Allocation_Mode.DEALLOC, 0, 0, ptr, 0, 0)
}
dealloc_all :: proc(ptr: rawptr) #inline {
__check_context()
a := context.allocator
_ = a.procedure(a.data, Allocation_Mode.DEALLOC_ALL, 0, 0, ptr, 0, 0)
}
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, Allocation_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 == null {
return alloc_align(new_size, alignment)
}
if new_size == 0 {
dealloc(old_memory)
return null
}
if new_size == old_size {
return old_memory
}
new_memory := alloc_align(new_size, alignment)
if new_memory == null {
return null
}
memory_copy(new_memory, old_memory, min(old_size, new_size));
dealloc(old_memory)
return new_memory
}
__default_allocator_proc :: proc(allocator_data: rawptr, mode: Allocation_Mode,
size, alignment: int,
old_memory: rawptr, old_size: int, flags: u64) -> rawptr {
using Allocation_Mode
match mode {
case ALLOC:
return heap_alloc(size)
case RESIZE:
return default_resize_align(old_memory, old_size, size, alignment)
case DEALLOC:
heap_dealloc(old_memory)
case DEALLOC_ALL:
// NOTE(bill): Does nothing
}
return null
}
__default_allocator :: proc() -> Allocator {
return Allocator{
__default_allocator_proc,
null,
}
}
__assert :: proc(msg: string) {
file_write(file_get_standard(File_Standard.ERROR), msg as []byte)
// TODO(bill): Which is better?
// __trap()
__debug_trap()
}
+8 -3
View File
@@ -68,9 +68,13 @@ byte_swap64 :: proc(b: u64) -> u64 #foreign "llvm.bswap.i64"
fmuladd_f32 :: proc(a, b, c: f32) -> f32 #foreign "llvm.fmuladd.f32"
fmuladd_f64 :: proc(a, b, c: f64) -> f64 #foreign "llvm.fmuladd.f64"
// TODO(bill): make custom heap procedures
heap_alloc :: proc(len: int) -> rawptr #foreign "malloc"
heap_dealloc :: proc(ptr: rawptr) #foreign "free"
heap_alloc :: proc(len: int) -> rawptr {
return HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, len)
}
heap_dealloc :: proc(ptr: rawptr) {
_ = HeapFree(GetProcessHeap(), 0, ptr)
}
memory_zero :: proc(data: rawptr, len: int) {
llvm_memset_64bit :: proc(dst: rawptr, val: byte, len: int, align: i32, is_volatile: bool) #foreign "llvm.memset.p0i8.i64"
@@ -258,6 +262,7 @@ __default_allocator_proc :: proc(allocator_data: rawptr, mode: Allocation_Mode,
return default_resize_align(old_memory, old_size, size, alignment)
case DEALLOC:
heap_dealloc(old_memory)
return null
case DEALLOC_ALL:
// NOTE(bill): Does nothing
}
+141 -141
View File
@@ -242,160 +242,160 @@ wglDeleteContext :: proc(hglrc: HGLRC) -> BOOL #foreign
GetAsyncKeyState :: proc(v_key: i32) -> i16 #foreign
is_key_down :: proc(key: int) -> bool {
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,
VK_LBUTTON :: 0x01
VK_RBUTTON :: 0x02
VK_CANCEL :: 0x03
VK_MBUTTON :: 0x04
BACK = 0x08,
TAB = 0x09,
VK_BACK :: 0x08
VK_TAB :: 0x09
CLEAR = 0x0C,
RETURN = 0x0D,
VK_CLEAR :: 0x0C
VK_RETURN :: 0x0D
SHIFT = 0x10,
CONTROL = 0x11,
MENU = 0x12,
PAUSE = 0x13,
CAPITAL = 0x14,
VK_SHIFT :: 0x10
VK_CONTROL :: 0x11
VK_MENU :: 0x12
VK_PAUSE :: 0x13
VK_CAPITAL :: 0x14
KANA = 0x15,
HANGEUL = 0x15,
HANGUL = 0x15,
JUNJA = 0x17,
FINAL = 0x18,
HANJA = 0x19,
KANJI = 0x19,
VK_KANA :: 0x15
VK_HANGEUL :: 0x15
VK_HANGUL :: 0x15
VK_JUNJA :: 0x17
VK_FINAL :: 0x18
VK_HANJA :: 0x19
VK_KANJI :: 0x19
ESCAPE = 0x1B,
VK_ESCAPE :: 0x1B
CONVERT = 0x1C,
NONCONVERT = 0x1D,
ACCEPT = 0x1E,
MODECHANGE = 0x1F,
VK_CONVERT :: 0x1C
VK_NONCONVERT :: 0x1D
VK_ACCEPT :: 0x1E
VK_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,
VK_SPACE :: 0x20
VK_PRIOR :: 0x21
VK_NEXT :: 0x22
VK_END :: 0x23
VK_HOME :: 0x24
VK_LEFT :: 0x25
VK_UP :: 0x26
VK_RIGHT :: 0x27
VK_DOWN :: 0x28
VK_SELECT :: 0x29
VK_PRINT :: 0x2A
VK_EXECUTE :: 0x2B
VK_SNAPSHOT :: 0x2C
VK_INSERT :: 0x2D
VK_DELETE :: 0x2E
VK_HELP :: 0x2F
NUM0 = #rune "0",
NUM1 = #rune "1",
NUM2 = #rune "2",
NUM3 = #rune "3",
NUM4 = #rune "4",
NUM5 = #rune "5",
NUM6 = #rune "6",
NUM7 = #rune "7",
NUM8 = #rune "8",
NUM9 = #rune "9",
VK_0 :: #rune "0"
VK_1 :: #rune "1"
VK_2 :: #rune "2"
VK_3 :: #rune "3"
VK_4 :: #rune "4"
VK_5 :: #rune "5"
VK_6 :: #rune "6"
VK_7 :: #rune "7"
VK_8 :: #rune "8"
VK_9 :: #rune "9"
A = #rune "A",
B = #rune "B",
C = #rune "C",
D = #rune "D",
E = #rune "E",
F = #rune "F",
G = #rune "G",
H = #rune "H",
I = #rune "I",
J = #rune "J",
K = #rune "K",
L = #rune "L",
M = #rune "M",
N = #rune "N",
O = #rune "O",
P = #rune "P",
Q = #rune "Q",
R = #rune "R",
S = #rune "S",
T = #rune "T",
U = #rune "U",
V = #rune "V",
W = #rune "W",
X = #rune "X",
Y = #rune "Y",
Z = #rune "Z",
VK_A :: #rune "A"
VK_B :: #rune "B"
VK_C :: #rune "C"
VK_D :: #rune "D"
VK_E :: #rune "E"
VK_F :: #rune "F"
VK_G :: #rune "G"
VK_H :: #rune "H"
VK_I :: #rune "I"
VK_J :: #rune "J"
VK_K :: #rune "K"
VK_L :: #rune "L"
VK_M :: #rune "M"
VK_N :: #rune "N"
VK_O :: #rune "O"
VK_P :: #rune "P"
VK_Q :: #rune "Q"
VK_R :: #rune "R"
VK_S :: #rune "S"
VK_T :: #rune "T"
VK_U :: #rune "U"
VK_V :: #rune "V"
VK_W :: #rune "W"
VK_X :: #rune "X"
VK_Y :: #rune "Y"
VK_Z :: #rune "Z"
LWIN = 0x5B,
RWIN = 0x5C,
APPS = 0x5D,
VK_LWIN :: 0x5B
VK_RWIN :: 0x5C
VK_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,
VK_NUMPAD0 :: 0x60
VK_NUMPAD1 :: 0x61
VK_NUMPAD2 :: 0x62
VK_NUMPAD3 :: 0x63
VK_NUMPAD4 :: 0x64
VK_NUMPAD5 :: 0x65
VK_NUMPAD6 :: 0x66
VK_NUMPAD7 :: 0x67
VK_NUMPAD8 :: 0x68
VK_NUMPAD9 :: 0x69
VK_MULTIPLY :: 0x6A
VK_ADD :: 0x6B
VK_SEPARATOR :: 0x6C
VK_SUBTRACT :: 0x6D
VK_DECIMAL :: 0x6E
VK_DIVIDE :: 0x6F
VK_F1 :: 0x70
VK_F2 :: 0x71
VK_F3 :: 0x72
VK_F4 :: 0x73
VK_F5 :: 0x74
VK_F6 :: 0x75
VK_F7 :: 0x76
VK_F8 :: 0x77
VK_F9 :: 0x78
VK_F10 :: 0x79
VK_F11 :: 0x7A
VK_F12 :: 0x7B
VK_F13 :: 0x7C
VK_F14 :: 0x7D
VK_F15 :: 0x7E
VK_F16 :: 0x7F
VK_F17 :: 0x80
VK_F18 :: 0x81
VK_F19 :: 0x82
VK_F20 :: 0x83
VK_F21 :: 0x84
VK_F22 :: 0x85
VK_F23 :: 0x86
VK_F24 :: 0x87
VK_NUMLOCK :: 0x90
VK_SCROLL :: 0x91
VK_LSHIFT :: 0xA0
VK_RSHIFT :: 0xA1
VK_LCONTROL :: 0xA2
VK_RCONTROL :: 0xA3
VK_LMENU :: 0xA4
VK_RMENU :: 0xA5
VK_PROCESSKEY :: 0xE5
VK_ATTN :: 0xF6
VK_CRSEL :: 0xF7
VK_EXSEL :: 0xF8
VK_EREOF :: 0xF9
VK_PLAY :: 0xFA
VK_ZOOM :: 0xFB
VK_NONAME :: 0xFC
VK_PA1 :: 0xFD
VK_OEM_CLEAR :: 0xFE
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,
}
+31 -11
View File
@@ -57,11 +57,31 @@ void add_type_info_type(Checker *c, Type *t) {
}
map_set(&c->info.type_info_types, hash_pointer(t), t);
if (t->kind == Type_Named) {
// NOTE(bill): Just in case
add_type_info_type(c, t->Named.base);
return;
}
Type *bt = get_base_type(t);
switch (bt->kind) {
case Type_Named: add_type_info_type(c, bt->Named.base); break;
case Type_Array: add_type_info_type(c, bt->Array.elem); break;
case Type_Slice: add_type_info_type(c, bt->Slice.elem); break;
case Type_Basic: {
if (bt->Basic.kind == Basic_string) {
add_type_info_type(c, make_type_pointer(c->allocator, t_u8));
add_type_info_type(c, t_int);
}
} break;
case Type_Array:
add_type_info_type(c, bt->Array.elem);
add_type_info_type(c, make_type_pointer(c->allocator, bt->Array.elem));
add_type_info_type(c, t_int);
break;
case Type_Slice:
add_type_info_type(c, bt->Slice.elem);
add_type_info_type(c, make_type_pointer(c->allocator, bt->Slice.elem));
add_type_info_type(c, t_int);
break;
case Type_Vector: add_type_info_type(c, bt->Vector.elem); break;
case Type_Pointer: add_type_info_type(c, bt->Pointer.elem); break;
case Type_Record: {
@@ -1372,7 +1392,7 @@ void check_shift(Checker *c, Operand *x, Operand *y, AstNode *node) {
x->mode = Addressing_Value;
}
b32 check_castable_to(Checker *c, Operand *operand, Type *y) {
b32 check_is_castable_to(Checker *c, Operand *operand, Type *y) {
if (check_is_assignable_to(c, operand, y))
return true;
@@ -1387,20 +1407,20 @@ b32 check_castable_to(Checker *c, Operand *operand, Type *y) {
// Cast between booleans and integers
if (is_type_boolean(x) || is_type_integer(x)) {
if (is_type_boolean(y) || is_type_integer(y))
if (is_type_boolean(xb) || is_type_integer(xb)) {
if (is_type_boolean(yb) || is_type_integer(yb))
return true;
}
// Cast between numbers
if (is_type_integer(x) || is_type_float(x)) {
if (is_type_integer(y) || is_type_float(y))
if (is_type_integer(xb) || is_type_float(xb)) {
if (is_type_integer(yb) || is_type_float(yb))
return true;
}
// Cast between pointers
if (is_type_pointer(x)) {
if (is_type_pointer(y))
if (is_type_pointer(xb)) {
if (is_type_pointer(yb))
return true;
}
@@ -1494,7 +1514,7 @@ void check_binary_expr(Checker *c, Operand *x, AstNode *node) {
can_convert = true;
}
}
} else if (check_castable_to(c, x, type)) {
} else if (check_is_castable_to(c, x, type)) {
x->mode = Addressing_Value;
can_convert = true;
}
+15 -10
View File
@@ -706,8 +706,8 @@ void selection_add_index(Selection *s, isize index) {
gb_array_append(s->index, index);
}
gb_global Entity *entity_any_type_info = NULL;
gb_global Entity *entity_any_data = NULL;
gb_global Entity *entity__any_type_info = NULL;
gb_global Entity *entity__any_data = NULL;
Selection lookup_field(Type *type_, String field_name, b32 is_type, Selection sel = empty_selection) {
GB_ASSERT(type_ != NULL);
@@ -721,29 +721,31 @@ Selection lookup_field(Type *type_, String field_name, b32 is_type, Selection se
type = get_base_type(type);
if (type->kind == Type_Basic) {
if (type->Basic.kind == Basic_any) {
switch (type->Basic.kind) {
case Basic_any: {
String type_info_str = make_string("type_info");
String data_str = make_string("data");
if (entity_any_type_info == NULL) {
if (entity__any_type_info == NULL) {
Token token = {Token_Identifier};
token.string = type_info_str;
entity_any_type_info = make_entity_field(gb_heap_allocator(), NULL, token, t_type_info_ptr, false);
entity__any_type_info = make_entity_field(gb_heap_allocator(), NULL, token, t_type_info_ptr, false);
}
if (entity_any_data == NULL) {
if (entity__any_data == NULL) {
Token token = {Token_Identifier};
token.string = data_str;
entity_any_data = make_entity_field(gb_heap_allocator(), NULL, token, t_type_info_ptr, false);
entity__any_data = make_entity_field(gb_heap_allocator(), NULL, token, t_rawptr, false);
}
if (are_strings_equal(field_name, type_info_str)) {
selection_add_index(&sel, 0);
sel.entity = entity_any_type_info;
sel.entity = entity__any_type_info;
return sel;
} else if (are_strings_equal(field_name, data_str)) {
selection_add_index(&sel, 1);
sel.entity = entity_any_data;
sel.entity = entity__any_data;
return sel;
}
} break;
}
return sel;
@@ -916,8 +918,11 @@ i64 type_size_of(BaseTypeSizes s, gbAllocator allocator, Type *t) {
if (size > 0)
return size;
}
if (kind == Basic_string)
if (kind == Basic_string) {
return 2 * s.word_size;
} else if (kind == Basic_any) {
return 2 * s.word_size;
}
} break;
case Type_Array: {
+2 -2
View File
@@ -3184,9 +3184,9 @@ void ssa_build_stmt(ssaProcedure *proc, AstNode *node) {
fall = ssa__make_block(proc, clause, make_string("match.fall.body"));
}
if (gb_array_count(cc->list)) {
if (gb_array_count(cc->list) == 0) {
// default case
default_stmts = cc->stmts;
default_stmts = cc->stmts;
default_fall = fall;
default_block = body;
continue;
+2 -1
View File
@@ -78,6 +78,7 @@ enum CallExprKind {
AstNodeArray make_ast_node_array(AstFile *f) {
AstNodeArray a;
gb_array_init(a, gb_arena_allocator(&f->arena));
GB_ASSERT(a != NULL);
return a;
}
@@ -2220,7 +2221,7 @@ AstNode *parse_for_stmt(AstFile *f) {
AstNode *parse_case_clause(AstFile *f) {
Token token = f->cursor[0];
AstNodeArray list = NULL;
AstNodeArray list = make_ast_node_array(f);
if (allow_token(f, Token_case)) {
list = parse_rhs_expr_list(f);
} else {
+1
View File
@@ -323,6 +323,7 @@ TokenizerInitError init_tokenizer(Tokenizer *t, String fullpath) {
char *c_str = gb_alloc_array(gb_heap_allocator(), char, fullpath.len+1);
memcpy(c_str, fullpath.text, fullpath.len);
c_str[fullpath.len] = '\0';
defer (gb_free(gb_heap_allocator(), c_str));
gbFileContents fc = gb_file_read_contents(gb_heap_allocator(), true, c_str);