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ba68faaed5
Find all the usages of `--enable-experimental-feature` or `--enable-upcoming-feature` in the tests and replace some of the `REQUIRES: asserts` to use `REQUIRES: swift-feature-Foo` instead, which should correctly apply to depending on the asserts/noasserts mode of the toolchain for each feature. Remove some comments that talked about enabling asserts since they don't apply anymore (but I might had miss some). All this was done with an automated script, so some formatting weirdness might happen, but I hope I fixed most of those. There might be some tests that were `REQUIRES: asserts` that might run in `noasserts` toolchains now. This will normally be because their feature went from experimental to upcoming/base and the tests were not updated.
109 lines
2.5 KiB
Swift
109 lines
2.5 KiB
Swift
// RUN: %target-typecheck-verify-swift -enable-experimental-feature ThenStatements
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// REQUIRES: swift_feature_ThenStatements
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enum E {
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case e
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case f
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case g(Int)
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}
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func testVoidNeverConversion() {
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// Explicit 'then' statements don't participate in implicit Void/Never conversions.
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let _: () -> Void = {
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if .random() {
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then 0 // expected-error {{cannot convert value of type 'Int' to specified type 'Void'}}
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} else {
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0
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}
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}
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let _: () -> Void = {
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if .random() {
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then fatalError() // expected-error {{cannot convert value of type 'Never' to specified type 'Void'}}
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} else {
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0
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}
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}
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let _ = {
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if .random() {
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then "" // expected-error {{branches have mismatching types 'String' and 'Int'}}
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} else {
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then 0
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}
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}
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let _ = {
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if .random() {
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then ()
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} else {
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0 // expected-warning {{integer literal is unused}}
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}
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}
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let _ = {
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if .random() {
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then ""
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} else {
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fatalError()
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}
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}
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func foo() -> Int {
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switch Bool.random() {
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case true:
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fatalError()
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case false:
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then fatalError() // expected-error {{cannot convert value of type 'Never' to specified type 'Int'}}
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}
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}
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}
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enum Either<T, U> {
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case first(T), second(U)
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}
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@resultBuilder
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struct Builder { // expected-note 2{{struct 'Builder' declared here}}
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static func buildBlock<T>(_ x: T) -> T { x }
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static func buildBlock<T, U>(_ x: T, _ y: U) -> (T, U) { (x, y) }
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static func buildEither<T, U>(first x: T) -> Either<T, U> { .first(x) }
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static func buildEither<T, U>(second x: U) -> Either<T, U> { .second(x) }
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static func buildExpression(_ x: Double) -> Double { x }
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static func buildExpression<T>(_ x: T) -> T { x }
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}
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@Builder
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func testThenStmtBuilder1() -> Either<Int, Int> {
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// We don't allow explicit 'then' to be part of the transform.
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if .random() {
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then 0 // expected-error {{closure containing control flow statement cannot be used with result builder 'Builder'}}
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} else {
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1
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}
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}
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@Builder
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func testThenStmtBuilder2() -> Either<Int, Int> {
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// We don't allow explicit 'then' to be part of the transform.
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if .random() {
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then 0 // expected-error {{closure containing control flow statement cannot be used with result builder 'Builder'}}
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} else {
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1
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}
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()
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}
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@Builder
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func testThenStmtBuilder3() -> Either<Int, String> {
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// But it's fine as part of e.g a binding.
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let x = if .random() {
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then 0
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} else {
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1
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}
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if .random() {
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x
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} else {
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""
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}
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}
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