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).
52 lines
1.4 KiB
Plaintext
52 lines
1.4 KiB
Plaintext
// M1.2 A.4b.i — '__sx_state' ivar registration on sx-defined
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// '#objc_class'.
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//
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// Class-pair init now:
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// 1. allocs the class pair
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// 2. registers a single '__sx_state : *void' ivar
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// 3. finalises the class
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// 4. stores the runtime Ivar handle in a per-class global
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// ('__<ClassName>_state_ivar') so IMP trampolines can later
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// 'object_getIvar' the state struct pointer.
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//
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// Round-trip below: after main starts, look up SxFoo, then ask
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// the runtime if SxFoo has an Ivar named '__sx_state'. Returns
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// non-null iff registration succeeded.
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//
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// IMP trampolines (A.4b.ii) and the '+alloc' / '-dealloc'
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// overrides (A.5 / A.6) come next.
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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 {
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print("FAIL: SxFoo not registered\n");
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return 1;
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}
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iv := class_getInstanceVariable(cls, "__sx_state".ptr);
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if iv == null {
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print("FAIL: __sx_state ivar missing\n");
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return 1;
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}
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print("ivar: __sx_state\n");
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}
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inline if OS != .macos {
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print("ivar: __sx_state\n");
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}
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0
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}
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