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96ae3fdb11
This results in better recovery and fixes an assertion failure in cases where we're attempting to diagnose a failure with the call. rdar://145593552
69 lines
2.7 KiB
Swift
69 lines
2.7 KiB
Swift
// RUN: %target-typecheck-verify-swift -swift-version 4
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// https://github.com/apple/swift/issues/46040
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// See test/Compatibility/enum_element_pattern.swift for Swift3 behavior.
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// As for FIXME cases: see https://github.com/apple/swift/issues/46054
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enum E {
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case A, B, C, D
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static func testE(e: E) {
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switch e {
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case A<UndefinedTy>(): // expected-error {{cannot find type 'UndefinedTy' in scope}}
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// expected-note@-1 {{while parsing this '<' as a type parameter bracket}}
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// expected-error@-2 {{cannot specialize non-generic type 'E'}}
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// expected-error@-3 {{enum case 'A' has no associated values}}
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break
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case B<Int>(): // expected-error {{cannot specialize non-generic type 'E'}}
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// expected-error@-1 {{enum case 'B' has no associated values}}
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break
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default:
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break;
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}
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}
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}
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func testE(e: E) {
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switch e {
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case E.A<UndefinedTy>(): // expected-error {{cannot find type 'UndefinedTy' in scope}}
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// expected-note@-1 {{while parsing this '<' as a type parameter bracket}}
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// expected-error@-2 {{cannot specialize non-generic type 'E'}}
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// expected-error@-3 {{enum case 'A' has no associated values}}
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break
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case E.B<Int>(): // expected-error {{cannot specialize non-generic type 'E'}}
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// expected-error@-1 {{enum case 'B' has no associated values}}
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break
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case .C(): // expected-error {{pattern with associated values does not match enum case 'C'}}
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// expected-note@-1 {{remove associated values to make the pattern match}} {{10-12=}}
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break
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case .D(let payload): // expected-error{{pattern with associated values does not match enum case 'D'}}
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// expected-note@-1 {{remove associated values to make the pattern match}} {{10-23=}}
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let _: () = payload
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break
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default:
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break
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}
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guard
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case .C() = e, // expected-error {{pattern with associated values does not match enum case 'C'}}
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// expected-note@-1 {{remove associated values to make the pattern match}} {{12-14=}}
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case .D(let payload) = e // expected-error {{pattern with associated values does not match enum case 'D'}}
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// expected-note@-1 {{remove associated values to make the pattern match}} {{12-25=}}
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else { return }
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}
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extension E : Error {}
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func canThrow() throws {
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throw E.A
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}
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do {
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try canThrow()
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} catch E.A() { // expected-error {{pattern with associated values does not match enum case 'A'}}
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// expected-note@-1 {{remove associated values to make the pattern match}} {{12-14=}}
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// ..
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} catch E.B(let payload) { // expected-error {{pattern with associated values does not match enum case 'B'}}
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// expected-note@-1 {{remove associated values to make the pattern match}} {{12-25=}}
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let _: () = payload
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}
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