29404afdee
Declare `NSObject` in std/objc.sx as `#foreign #objc_class("NSObject")`
with the canonical instance + class-method surface every Obj-C class
inherits: `retain`/`release`/`autorelease`/`new`/`alloc`/`init`/
`description`/`hash`/`isEqual_`/`isKindOfClass_`/`respondsToSelector_`/
`class`. Root the foreign-class hierarchy in uikit.sx at NSObject by
adding `#extends NSObject;` to every previously-unrooted declaration
(NSValue, NSNumber, NSDictionary, NSSet, NSNotification, NSBundle,
NSNotificationCenter, NSRunLoop, CADisplayLink, CALayer, EAGLContext,
UIScreen, UIResponder) plus deeper chain fixes (NSMutableDictionary
extends NSDictionary; UIWindow extends UIView; UIViewController
extends UIResponder). After this, M2.3's extends-chain walk finds
`retain`/`release` on any UIKit-typed value:
view := UIView.alloc().init();
defer view.release(); // canonical sx idiom — no language magic
Plus `autoreleasepool(body: Closure())` stdlib helper that wraps
`body` in `objc_autoreleasePoolPush` / `defer objc_autoreleasePoolPop`.
Required for Foundation factory returns; closure-call frame is real
cost so hot loops should inline the push/defer-pop pattern manually.
Smoke test `ffi-objc-arc-01-autoreleasepool.sx` exercises both
patterns; refresh of two IR snapshots picks up the new stdlib decls
appearing in test outputs that include `modules/std/objc.sx`.
185/185 example tests pass; chess on iOS-sim green.
51 lines
1.7 KiB
Plaintext
51 lines
1.7 KiB
Plaintext
// ffi-objc-arc-01 — M4.A smoke test for NSObject + autoreleasepool.
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//
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// Exercises:
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// 1. NSObject is declared in std/objc.sx and reachable from user code.
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// `obj.retain()` / `obj.release()` dispatch via the M2.3 #extends-aware
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// method chain. Pattern: `defer obj.release();` as the canonical
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// sx idiom for owned Obj-C handles.
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// 2. `autoreleasepool(body)` stdlib helper wraps `body` in a
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// push/defer-pop pair so Foundation factory returns drain at block
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// end.
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//
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// macOS-only — libobjc + NSObject must be available at runtime.
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#import "modules/std.sx";
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#import "modules/std/objc.sx";
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#import "modules/compiler.sx";
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main :: () -> s32 {
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inline if OS == .macos {
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// Manual retain/release on an NSObject instance — the
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// `defer obj.release();` pattern is the canonical sx idiom.
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obj := NSObject.alloc().init();
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if obj == null { print("FAIL: alloc null\n"); return 1; }
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defer obj.release();
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// Bump the count and drop the extra; refcount math stays balanced.
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_ = obj.retain();
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obj.release();
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print("retain/release: ok\n");
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// autoreleasepool helper round-trip — just exercise that the
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// push/pop pair executes. We don't have a side-effect to observe
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// (NSObject.new returns a +1 retained, NOT autoreleased), so this
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// is a smoke test of the helper's shape, not the runtime
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// behavior.
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autoreleasepool(() => {
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inner := NSObject.new();
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if inner != null {
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inner.release();
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}
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});
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print("autoreleasepool: ok\n");
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}
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inline if OS != .macos {
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print("skipped (not macos)\n");
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}
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0;
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}
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