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If a tuple is passed as the only argument to a function that takes two unnamed arguments, we try to diagnose the missing argument label. However, in the old diagnose code we didn’t distinguish between non-existing arguments and arguments without labels; both behaved the same. Thus, the missing second argument in the function call would line up with the empty second argument label, not producing a diagnostic, but hitting an assertion later on. Distinguish between the two to fix the issue. Fixes rdar://64319340
12 lines
441 B
Swift
12 lines
441 B
Swift
// RUN: %target-typecheck-verify-swift
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func twoArgs(_ a: Int, _ b: Int) -> Void { //expected-note{{'twoArgs' declared here}}
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}
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func call() {
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// Call a function that takes two unnamed arguments with a tuple that has two
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// named arguments
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let namedTuple: (x: Int, y: Int) = (1, 1)
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twoArgs(namedTuple) // expected-error{{global function 'twoArgs' expects 2 separate arguments}} expected-error{{missing argument label ':' in call}}
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}
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