OpenedExistentials: Do not attempt to erase existential metatypes wit… #78593
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…h invariant `Self`
The non-metatype case was never supported. The same should hold for the
existential metatype case, which used to miscompile and now crashes
because the invariant reference is deemed OK but the erasure expectedly
fails to handle it:
```swift
class C<T> {}
protocol P {
associatedtype A
func f() -> any P & C<A>
func fMeta() -> any (P & C<A>).Type
}
do {
let p: any P
let _ = p.f() // error
let _ = p.fMeta() // crash
}
```
AnthonyLatsis
requested review from
hborla,
slavapestov and
xedin
as code owners
|
@swift-ci please smoke test macOS |
slavapestov
approved these changes
Jan 17, 2025
|
@swift-ci please smoke test |
|
@swift-ci please smoke test Linux |
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…h invariant
SelfThe non-metatype case was never supported. The same should hold for the existential metatype case, which used to miscompile and now crashes because the invariant reference is deemed OK but the erasure expectedly fails to handle it: