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b8cc015113
We need to strip inout/lvalue before casting the second parameter's type to FunctionType. There were also some verification issues and the fact that we weren't allowing already-escaping closures to be passed to it (which is not useful, but shouldn't result in an error and really awful diagnostic). We can potentially look at diagnosing this with a warning at some point in the future. Fixes rdar://problem/32239354.
35 lines
1.2 KiB
Swift
35 lines
1.2 KiB
Swift
// RUN: %target-swift-frontend -module-name main -typecheck -swift-version 3 %s
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// RUN: %target-swift-frontend -module-name main -typecheck -swift-version 4 %s
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// These tests are split out to ensure that we run the AST verifier's
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// special post-type-checked verifications, which don't currently
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// happen if any errors occur anywhere during compilation.
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func rdar32239354_1(_ fn: () -> Void) {
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var other: (() -> Void) -> Void = { _ in }
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withoutActuallyEscaping(fn, do: other)
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// Reassign to avoid warning about changing this to a let, since we
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// need this to be a var to trigger the original issue.
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other = { _ in }
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}
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func rdar32239354_2(_ fn: () -> Void, other: inout (() -> Void) -> Void) {
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withoutActuallyEscaping(fn, do: other)
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}
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func testVariations(
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_ no_escape: () -> (),
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_ escape: @escaping () -> (),
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_ takesFn: (()->()) -> ()->()
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) -> () -> () {
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withoutActuallyEscaping(no_escape) { _ in }
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withoutActuallyEscaping({}) { _ in }
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withoutActuallyEscaping(escape) { _ in }
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_ = withoutActuallyEscaping(no_escape, do: takesFn)
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_ = withoutActuallyEscaping(escape, do: takesFn)
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_ = withoutActuallyEscaping(no_escape) {
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return takesFn($0)
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}
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}
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