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9554e61705
The enclosing conformance-lookup operation can fail (i.e., it returns Optional), but the nested call was force-unwrapping the optional from an inner call for no particular reason. Stop doing that, which fixes SR-6466. Note that the offending code is still something that should go away in time, so this is merely polishing the band-aid to avoid a crash that occurs often with conditional conformances.
29 lines
316 B
Swift
29 lines
316 B
Swift
// RUN: not %target-swift-frontend %s -typecheck
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protocol DC {
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init()
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}
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protocol P {
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associatedtype A: DC
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func f() -> A
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}
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protocol Q: P {
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associatedtype A
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}
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extension Q {
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func f() -> A { return A() }
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}
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struct X<T> { }
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extension X: P where T: P {
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typealias A = T.A
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}
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extension X: Q where T: Q {
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}
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