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).
49 lines
1.5 KiB
Plaintext
49 lines
1.5 KiB
Plaintext
// M1.3 — `obj.class` accessor on Obj-C pointers.
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//
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// Any Obj-C-class pointer (foreign or sx-defined) can be probed
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// for its runtime class object via `obj.class`. Lowers to
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// `object_getClass(obj)`. Returns `Class` (alias for *void —
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// parameterized `Class(T)` covariance is M1.1.b).
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//
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// Verifies both shapes:
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// 1. (*SxFoo).class — sx-defined class. Returns the SxFoo Class.
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// 2. (*NSObject).class — foreign class via stdlib. Returns NSObject's
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// Class.
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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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NSObjectFwd :: #objc_class("NSObject") extern {
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alloc :: () -> *NSObjectFwd;
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init :: (self: *NSObjectFwd) -> *NSObjectFwd;
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}
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SxFoo :: #objc_class("SxFoo") {
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counter: i32;
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alloc :: () -> *SxFoo;
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bump :: (self: *Self) { self.counter += 1; }
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}
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main :: () -> i32 {
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inline if OS == .macos {
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// sx-defined class round-trip.
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f := SxFoo.alloc();
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cls_f : Class = f.class;
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expected_f : Class = objc_getClass("SxFoo".ptr);
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if cls_f != expected_f { print("FAIL: SxFoo.class mismatch\n"); return 1; }
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// foreign class round-trip.
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nso := NSObjectFwd.alloc().init();
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cls_n : Class = nso.class;
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expected_n : Class = objc_getClass("NSObject".ptr);
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if cls_n != expected_n { print("FAIL: NSObject.class mismatch\n"); return 1; }
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print("class accessor: ok\n");
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}
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inline if OS != .macos {
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print("class accessor: ok\n");
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}
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0
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}
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