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7c9d53a0a0
ns_error_domain can now be used to communicate with the ClangImporter when an enum has an associated error domain string. In this case, when we import it as a Swift enum, we can also synthesize a conformance to _BridgedNSError. This allows the creation of something like NS_ERROR_ENUM, in which the developer can declare an enum for the purposes of error handling. Adds Sema and executable tests demonstrating this funcionality. In order for the imported ns_error_domain bridging to work, we have to at some point forcibly pull in a _BridgedNSError conformance, as one will not be pulled in normally. This is a problem, and is explicitly signaled in the provided test case
25 lines
662 B
Swift
25 lines
662 B
Swift
// RUN: %target-swift-frontend -emit-sil %s -import-objc-header %S/Inputs/enum-new.h -verify
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// REQUIRES: OS=macosx
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_ = .Red as Color
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_ = .Cyan as MoreColor
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func test() {
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switch getColor() {
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case .Red, .Blue, .Green: break
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} // no-error
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switch getMoreColor() {
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case .Yellow, .Magenta, .Black, .Cyan: break
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} // no-error
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switch getColorOptions() {
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case ColorOptions.Pastel: break
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case ColorOptions.Swift: break
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} // expected-error {{switch must be exhaustive, consider adding a default clause}}
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switch 5 as Int16 {
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case Zero: break // no-error
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} // expected-error {{switch must be exhaustive, consider adding a default clause}}
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}
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