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78d6fb2e26
We fail to resolve the extended type if an extension is not declared at the top level. This causes us to diagnose a lookup failure on `Self`. If the extended type is a protocol, we thus end up with a nominal Self type that’s not a class, violating the assertion that’s currently in place. To fix the crasher, convert the assertion to an `if` condition and issue a generic "cannot find type 'Self' in scope" in the else case. Fixes rdar://76329083
13 lines
227 B
Swift
13 lines
227 B
Swift
// RUN: not %target-swift-frontend -typecheck %s
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protocol Foo {}
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func withTrailingClosure(x: (Int) -> Void) {}
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_ = withTrailingClosure { (x) in
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extension Foo {
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func foo() {
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_ = MemoryLayout<Self>.size
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}
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}
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}
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