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ir: auto-deref *Self when invoking a Closure-typed field (issue-0035)

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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.
This commit is contained in:
agra
2026-05-19 00:22:35 +03:00
parent ba1d41a4f5
commit efb087559d
4 changed files with 49 additions and 2 deletions
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tests/expected/100-closure-field-call-via-self-ptr.exit Normal file
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tests/expected/100-closure-field-call-via-self-ptr.txt Normal file
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