54f6bf57e6
Although the old version of GEP_tup_like was incorrect in some cases, I do not believe we ever used it in an incorrect fashion. In particular, it could go wrong with extended index sequences like [0, 1, 3], but as near as I can tell we only ever use it with short sequences like [0, i].
19 lines
382 B
Rust
19 lines
382 B
Rust
// If we use GEPi rathern than GEP_tup_like when
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// storing closure data (as we used to do), the u64 would
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// overwrite the u16.
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type pair<A,B> = {
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a: A, b: B
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};
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fn f<A:copy>(a: A, b: u16) -> fn@() -> (A, u16) {
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fn@() -> (A, u16) { (a, b) }
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}
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fn main() {
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let (a, b) = f(22_u64, 44u16)();
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#debug["a=%? b=%?", a, b];
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assert a == 22u64;
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assert b == 44u16;
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}
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