wasm shell + destructuring

This commit is contained in:
agra
2026-03-03 13:21:54 +02:00
parent 6c5672c7df
commit 004aff5f67
18 changed files with 219 additions and 32 deletions

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@@ -296,6 +296,13 @@ Builder :: struct {
}
}
// Global variable for address-of test
g_smoke_val : s32 = 42;
write_to_ptr :: (p: *s32) {
p.* = 99;
}
main :: () {
// ========================================================
@@ -724,6 +731,10 @@ END;
print("str-suffix: {}\n", msg[6..]);
// --- Pointers ---
// Address-of global variable
write_to_ptr(@g_smoke_val);
print("global-addr-of: {}\n", g_smoke_val);
pv := Point.{ 10, 20 };
ptr := @pv;
print("deref: {}\n", ptr.*);
@@ -750,6 +761,13 @@ END;
print("ptr2==null: {}\n", np2 == null);
print("ptr2!=null: {}\n", np2 != null);
// Pointer to nested struct field
Inner3 :: struct { a: f32; b: f32; c: f32; }
Outer3 :: struct { key: s32; inner: Inner3; }
out3 := Outer3.{ key = 42, inner = Inner3.{ a = 1.0, b = 2.0, c = 3.0 } };
ip3 := @out3.inner;
print("ptr-nested-field: {} {} {}\n", ip3.a, ip3.b, ip3.c);
// --- Vectors ---
vc := vec3(1, 3, 2);
print("vec-construct: {}\n", vc);
@@ -1291,6 +1309,34 @@ END;
print("3-way: {} {} {}\n", ra, rb, rc);
}
// --- Tuple destructuring ---
print("--- destructure ---\n");
// Basic tuple destructuring
{
da, db := (10, 20);
print("basic: {} {}\n", da, db);
}
// Destructure from function return
{
dswap :: (a: s64, b: s64) -> (s64, s64) { (b, a); }
dx, dy := dswap(1, 2);
print("fn: {} {}\n", dx, dy);
}
// Discard with _
{
_, dsecond := (100, 200);
print("discard: {}\n", dsecond);
}
// Three elements
{
da3, db3, dc3 := (1, 2, 3);
print("triple: {} {} {}\n", da3, db3, dc3);
}
// ========================================================
// 15. FOREIGN FUNCTION BINDING
// ========================================================

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@@ -8,6 +8,7 @@ POINTER_SIZE : s64 = 8;
BuildOptions :: struct {
add_link_flag :: (self: BuildOptions, flag: [:0]u8) #compiler;
set_output_path :: (self: BuildOptions, path: [:0]u8) #compiler;
set_wasm_shell :: (self: BuildOptions, path: [:0]u8) #compiler;
}
build_options :: () -> BuildOptions #compiler;

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@@ -86,6 +86,12 @@ glReadPixels : (s32, s32, s32, s32, u32, u32, *void) -> void = ---;
glActiveTexture : (u32) -> void = ---;
glUniform1i : (s32, s32) -> void = ---;
glPixelStorei : (u32, s32) -> void = ---;
glTexSubImage2D : (u32, s32, s32, s32, s32, s32, u32, u32, *void) -> void = ---;
glDeleteTextures : (s32, *u32) -> void = ---;
GL_TEXTURE_WRAP_S :u32: 0x2802;
GL_TEXTURE_WRAP_T :u32: 0x2803;
GL_CLAMP_TO_EDGE :u32: 0x812F;
// Loader: call once after creating GL context
// Pass in a proc loader (e.g. SDL_GL_GetProcAddress)
@@ -133,6 +139,8 @@ load_gl :: (get_proc: ([*]u8) -> *void) {
glActiveTexture = xx get_proc("glActiveTexture");
glUniform1i = xx get_proc("glUniform1i");
glPixelStorei = xx get_proc("glPixelStorei");
glTexSubImage2D = xx get_proc("glTexSubImage2D");
glDeleteTextures = xx get_proc("glDeleteTextures");
}

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@@ -4,7 +4,9 @@ sdl3 :: #library "SDL3";
SDL_INIT_VIDEO :u32: 0x20;
// SDL_WindowFlags
SDL_WINDOW_OPENGL :u64: 0x2;
SDL_WINDOW_OPENGL :u64: 0x2;
SDL_WINDOW_RESIZABLE :u64: 0x20;
SDL_WINDOW_HIGH_PIXEL_DENSITY :u64: 0x2000;
// SDL_GLAttr (enum starting at 0)
SDL_GL_DOUBLEBUFFER :s32: 5;
@@ -332,3 +334,16 @@ SDL_GL_GetProcAddress :: (proc: [:0]u8) -> *void #foreign sdl3;
SDL_PollEvent :: (event: *SDL_Event) -> bool #foreign sdl3;
SDL_GetTicks :: () -> u64 #foreign sdl3;
SDL_Delay :: (ms: u32) -> void #foreign sdl3;
SDL_GetWindowDisplayScale :: (window: *void) -> f32 #foreign sdl3;
SDL_GetWindowSize :: (window: *void, w: *s32, h: *s32) -> bool #foreign sdl3;
SDL_GetWindowSizeInPixels :: (window: *void, w: *s32, h: *s32) -> bool #foreign sdl3;
SDL_Rect :: struct {
x: s32;
y: s32;
w: s32;
h: s32;
}
SDL_GetPrimaryDisplay :: () -> u32 #foreign sdl3;
SDL_GetDisplayUsableBounds :: (display_id: u32, rect: *SDL_Rect) -> bool #foreign sdl3;

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@@ -4,4 +4,7 @@
#include "vendors/file_utils/file_utils.h";
#source "vendors/file_utils/file_utils.c";
#include "vendors/kb_text_shape/kbts_api.h";
#source "vendors/kb_text_shape/kb_text_shape_impl.c";
};