efb087559d
When lowering `self.cb()` from inside a method whose receiver is *Self, the field-access path passed the receiver pointer (not the aggregate) to `structGet`, which then produced `call void undef(ptr undef)` at the LLVM level — undefined at runtime, corrupted adjacent globals when it transferred control to a garbage pointer. Auto-load through the pointer first so structGet receives a real aggregate. Discovered while building the new AndroidPlatform's `run_frame_loop` — calling the stored frame closure as `self.frame_closure()` zeroed out adjacent globals because the undef call jumped into random memory. Added examples/100-closure-field-call-via-self-ptr.sx as the locked-in regression: both direct (`self.cb()`) and hoisted (`fn := self.cb; fn();`) forms must yield identical IR + behavior. 86/86 regression tests pass.
41 lines
875 B
Plaintext
41 lines
875 B
Plaintext
// Invoking a Closure-typed struct field as `self.field()` from a
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// method whose receiver is `*Self`. The field access must auto-deref
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// the pointer before extracting the closure value.
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#import "modules/std.sx";
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Holder :: struct {
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cb: Closure() = ---;
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has: bool = false;
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set :: (self: *Holder, fn: Closure()) {
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self.cb = fn;
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self.has = true;
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}
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// Direct invocation through *self.
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call_direct :: (self: *Holder) {
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if self.has == false { return; }
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self.cb();
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}
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// Hoist-then-call form — must agree with the direct form.
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call_hoisted :: (self: *Holder) {
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if self.has == false { return; }
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fn := self.cb;
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fn();
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}
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}
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ticks : s32 = 0;
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main :: () -> s32 {
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h : Holder = .{};
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h.set(() => { ticks += 1; });
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h.call_direct();
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h.call_hoisted();
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return ticks;
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}
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