Files
sx/examples/0127-types-using.sx
agra 12bf61a9fc std: restructure step 3 — ffi/ moves, build.sx, math dir spelling, fixtures
- objc.sx, objc_block.sx (from std/) + sdl3/opengl/raylib/stb/stb_truetype/
  wasm vendor bindings (from modules/ root) -> modules/ffi/
- std/uikit.sx deleted: platform/uikit.sx already declares UIApplicationMain
  and imports objc; '#framework "UIKit"' cannot live in a file imported on
  macOS targets (unconditional link directive, UIKit is iOS-only), so the
  three iOS-only examples carry the 3-line glue inline. 1607/1608/1616 also
  un-rotted (dead ns_string -> 'xx "..."' Into conversions, callconv(.c)
  msgSend fn-ptrs) — all three build for ios-sim/ios again.
- math/math.sx -> math/scalar.sx; one spelling '#import "modules/math"'
  everywhere (4 pinned IR snapshots regenerated: dir import adds Vec2/Mat4
  to the type tables).
- compiler.sx -> build.sx (imports, CLAUDE.md bundling table, specs.md).
- testpkg/ + test_c.sx -> tests/fixtures/ (resolve CWD-relative from repo
  root, same as vendors/).
- library-internal imports use full modules/... paths (std.sx tail,
  platform/bundle.sx, fixtures).
2026-06-11 08:37:22 +03:00

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#import "modules/std.sx";
#import "modules/math";
#import "modules/build.sx";
#import "modules/std/test.sx";
pkg :: #import "tests/fixtures/testpkg";
main :: () {
// === 26. #using struct composition ===
print("=== 26. #using ===\n");
{
UBase :: struct { x: s32; y: s32; }
UExt :: struct { #using UBase; z: s32; }
e := UExt.{ x = 1, y = 2, z = 3 };
print("using-x: {}\n", e.x);
print("using-y: {}\n", e.y);
print("using-z: {}\n", e.z);
// #using in middle position
UHeader :: struct { version: s32; }
UPacket :: struct { id: s32; #using UHeader; payload: s32; }
p := UPacket.{ id = 10, version = 42, payload = 99 };
print("pkt-id: {}\n", p.id);
print("pkt-ver: {}\n", p.version);
print("pkt-pay: {}\n", p.payload);
// Multiple #using
UPos :: struct { px: s32; py: s32; }
UCol :: struct { r: s32; g: s32; }
USprite :: struct { #using UPos; #using UCol; scale: s32; }
s := USprite.{ px = 10, py = 20, r = 255, g = 128, scale = 1 };
print("sprite-px: {}\n", s.px);
print("sprite-r: {}\n", s.r);
print("sprite-scale: {}\n", s.scale);
}
// --- Comptime format ---
{
ct_body :: "hello";
ct_msg :: format("say: {} (len={})", ct_body, ct_body.len);
print("{}\n", ct_msg);
ct_num :: 42;
ct_num_msg :: format("n={}", ct_num);
print("{}\n", ct_num_msg);
}
}