a68f7c2e64
18 obj-c examples migrated (1308/1311-1317/1319/1320/1321/1341-1347): import
runtime classes '#foreign #objc_class("X") {' → '#objc_class("X") extern {'
(prefix→postfix) + fn/comment '#foreign'→'extern'. No 13xx snapshot asserts on
'foreign' text → all behavior-preserving; empty snapshot diff, corpus-validated.
Per the keep-list policy: KEPT identity-#foreign tests 1306/1318 (filename
ffi-*-foreign*); LEFT comment-only #foreign in the extern/export test files
1332/1348/1349 (no decls). Bare defined #objc_class examples (no #foreign) untouched
— not a purge target. Suite green (647 corpus / 444 unit, 0 failed).
55 lines
1.9 KiB
Plaintext
55 lines
1.9 KiB
Plaintext
// M1.2 A.5 — synthesized `+alloc` IMP allocates an Obj-C
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// instance AND a hidden state-struct, bound via the `__sx_state`
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// ivar.
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//
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// Round-trip below:
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// 1. objc_msgSend(SxFoo, sel_registerName("alloc")) — invokes
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// the synthesized +alloc IMP via the metaclass.
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// 2. Returned instance is non-null AND has `__sx_state` set to
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// a non-null pointer (the freshly-malloc'd state struct).
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// 3. The state was memset'd to zero in the IMP — confirms via
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// reading the raw bytes.
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//
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// Once A.6 lands (-dealloc) and A.7 opens the dispatch gate,
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// sx-side `SxFoo.alloc().init()` and method calls will exercise
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// the full lifecycle.
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#import "modules/std.sx";
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#import "modules/build.sx";
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#import "modules/ffi/objc.sx";
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class_getInstanceVariable :: (cls: *void, name: [*]u8) -> *void extern objc;
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SxFoo :: #objc_class("SxFoo") {
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counter: i32;
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bump :: (self: *Self) {
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self.counter += 1;
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}
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}
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main :: () -> i32 {
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inline if OS == .macos {
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cls : Class = objc_getClass("SxFoo".ptr);
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if cls == null { print("FAIL: SxFoo not registered\n"); return 1; }
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// [SxFoo alloc] — invokes the synthesized +alloc IMP.
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sel_alloc : SEL = sel_registerName("alloc".ptr);
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msg_fn : (cls: *void, sel: *void) -> *void callconv(.c) = xx objc_msgSend;
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instance : *void = msg_fn(cls, sel_alloc);
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if instance == null { print("FAIL: +alloc returned null\n"); return 1; }
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// Verify __sx_state was set on the new instance.
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ivar := class_getInstanceVariable(cls, "__sx_state".ptr);
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if ivar == null { print("FAIL: __sx_state ivar missing\n"); return 1; }
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state := object_getIvar(instance, ivar);
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if state == null { print("FAIL: __sx_state not bound to state ptr\n"); return 1; }
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print("alloc: ok, state bound\n");
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}
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inline if OS != .macos {
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print("alloc: ok, state bound\n");
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}
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0
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}
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