Files
sx/examples/1315-ffi-objc-self-class-accessor.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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// M1.3 — `obj.class` accessor on Obj-C pointers.
//
// Any Obj-C-class pointer (foreign or sx-defined) can be probed
// for its runtime class object via `obj.class`. Lowers to
// `object_getClass(obj)`. Returns `Class` (alias for *void —
// parameterized `Class(T)` covariance is M1.1.b).
//
// Verifies both shapes:
// 1. (*SxFoo).class — sx-defined class. Returns the SxFoo Class.
// 2. (*NSObject).class — foreign class via stdlib. Returns NSObject's
// Class.
#import "modules/std.sx";
#import "modules/build.sx";
#import "modules/ffi/objc.sx";
NSObjectFwd :: #foreign #objc_class("NSObject") {
alloc :: () -> *NSObjectFwd;
init :: (self: *NSObjectFwd) -> *NSObjectFwd;
}
SxFoo :: #objc_class("SxFoo") {
counter: s32;
alloc :: () -> *SxFoo;
bump :: (self: *Self) { self.counter += 1; }
}
main :: () -> s32 {
inline if OS == .macos {
// sx-defined class round-trip.
f := SxFoo.alloc();
cls_f : Class = f.class;
expected_f : Class = objc_getClass("SxFoo".ptr);
if cls_f != expected_f { print("FAIL: SxFoo.class mismatch\n"); return 1; }
// foreign class round-trip.
nso := NSObjectFwd.alloc().init();
cls_n : Class = nso.class;
expected_n : Class = objc_getClass("NSObject".ptr);
if cls_n != expected_n { print("FAIL: NSObject.class mismatch\n"); return 1; }
print("class accessor: ok\n");
}
inline if OS != .macos {
print("class accessor: ok\n");
}
0
}