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A parse-only option is needed for parse performance tracking and the current option also includes semantic analysis.
18 lines
635 B
Swift
18 lines
635 B
Swift
// RUN: %target-typecheck-verify-swift -swift-version 4
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// Swift 3 used default literal types even for normal protocol constraints,
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// which led to nonsensical type inference behavior.
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// expected-note@+1{{in call to function 'f'}}
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func f<T: ExpressibleByIntegerLiteral>(_: T = 0) { }
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f() // expected-error{{generic parameter 'T' could not be inferred}}
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// expected-note@+1{{'T' declared as parameter to type 'X'}}
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struct X<T: ExpressibleByIntegerLiteral> {
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func g() { }
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}
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X().g() // expected-error{{generic parameter 'T' could not be inferred}}
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// expected-note@-1{{explicitly specify the generic arguments to fix this issue}}
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