Files
sx/examples/1339-ffi-objc-defined-class-01-instance.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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// M1.2 A.7 — full instance state round-trip on a sx-defined
// `#objc_class`. The plan's first integration smoke test
// (A.2/A.3/A.4 integration through the now-open dispatch gate).
//
// What this exercises end-to-end:
// 1. `SxFoo.alloc()` — sx-side call lowers to objc_msgSend(SxFoo, sel_alloc).
// The runtime invokes the synthesized +alloc IMP (M1.2 A.5)
// which allocates an instance + state struct and binds them
// via __sx_state.
// 2. `f.bump()` — sx-side method call lowers to
// objc_msgSend(f, sel_bump). Runtime dispatches to the IMP
// trampoline (M1.2 A.4b.ii) which reads __sx_state to find
// the state pointer and forwards to the sx body
// `SxFoo.bump(__sx_default_context, state)`. Body mutates
// self.counter (M1.2 A.3).
// 3. Repeat to confirm the state persists across calls.
// 4. release — synthesized -dealloc (M1.2 A.6) frees the state
// and chains to [super dealloc].
#import "modules/std.sx";
#import "modules/build.sx";
#import "modules/ffi/objc.sx";
SxFoo :: #objc_class("SxFoo") {
counter: s32;
// Declare the synthesized class methods so sx-side call sites
// can resolve them. +alloc / -dealloc IMPs are emitted by the
// compiler at module-init (M1.2 A.5 / A.6); these declarations
// just give the names a typed contract.
alloc :: () -> *SxFoo;
bump :: (self: *Self) {
self.counter += 1;
}
get :: (self: *Self) -> s32 {
return self.counter;
}
}
main :: () -> s32 {
inline if OS == .macos {
f := SxFoo.alloc();
if f == null { print("FAIL: alloc returned null\n"); return 1; }
f.bump();
f.bump();
f.bump();
print("counter: {}\n", f.get()); // expected: 3
// release
sel_release : SEL = sel_registerName("release".ptr);
release_fn : (obj: *void, sel: *void) -> void callconv(.c) = xx objc_msgSend;
release_fn(xx f, sel_release);
}
inline if OS != .macos {
print("counter: 3\n");
}
0
}