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97 lines
4.0 KiB
Swift
97 lines
4.0 KiB
Swift
// REQUIRES: swift_swift_parser
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// RUN: %empty-directory(%t)
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// RUN: %host-build-swift -swift-version 5 -emit-library -o %t/%target-library-name(MacroDefinition) -parse-as-library -module-name=MacroDefinition %S/Inputs/syntax_macro_definitions.swift -g -no-toolchain-stdlib-rpath
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// RUN: %target-typecheck-verify-swift -swift-version 5 -load-plugin-library %t/%target-library-name(MacroDefinition) -disable-availability-checking -module-name MacrosTest
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@attached(peer) macro m1() = #externalMacro(module: "MacroDefinition", type: "EmptyPeerMacro")
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@attached(peer) macro m2(_: Int) = #externalMacro(module: "MacroDefinition", type: "EmptyPeerMacro")
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// expected-note@-1{{'m2' declared here}}
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// expected-note@-2{{candidate expects value of type 'Int' for parameter #1 (got 'String')}}
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@attached(peer) macro m2(_: Double) = #externalMacro(module: "MacroDefinition", type: "EmptyPeerMacro")
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// expected-note@-1{{candidate expects value of type 'Double' for parameter #1 (got 'String')}}
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@attached(peer) macro m3(message: String) = #externalMacro(module: "MacroDefinition", type: "EmptyPeerMacro")
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// expected-note@-1{{'m3(message:)' declared here}}
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@attached(peer) macro m4(_ param1: Int, label2 param2: String) = #externalMacro(module: "MacroDefinition", type: "EmptyPeerMacro")
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// expected-note@-1 3 {{'m4(_:label2:)' declared here}}
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@attached(peer) macro m5(label1: Int, label2: String) = #externalMacro(module: "MacroDefinition", type: "EmptyPeerMacro")
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// expected-note@-1{{'m5(label1:label2:)' declared here}}
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@attached(peer) macro m6(label: Int = 42) = #externalMacro(module: "MacroDefinition", type: "EmptyPeerMacro")
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@freestanding(expression) macro stringify<T>(_ value: T) -> (T, String) = #externalMacro(module: "MyMacros", type: "StringifyMacro")
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// expected-warning@-1{{external macro implementation type 'MyMacros.StringifyMacro' could not be found for macro 'stringify'}}
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// expected-note@-2{{'stringify' declared here}}
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@m1 struct X1 { }
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@m2 struct X2 { } // expected-error{{missing argument for parameter #1 in macro expansion}}{{4-4=(<#Int#>)}}
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@m3 struct X3 { } // expected-error{{missing argument for parameter 'message' in macro expansion}}{{4-4=(message: <#String#>)}}
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@m4 struct X4 { } // expected-error{{missing arguments for parameters #1, 'label2' in macro expansion}}{{4-4=(<#Int#>, label2: <#String#>)}}
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@m5 struct X5 { } // expected-error{{missing arguments for parameters 'label1', 'label2' in macro expansion}}{{4-4=(label1: <#Int#>, label2: <#String#>)}}
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@m6 struct X6 { }
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// Check for nesting rules.
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struct SkipNestedType {
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@propertyWrapper
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struct m1<T> {
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init() { }
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var wrappedValue: T
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}
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// We select the macro, not the property wrapper.
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@m1 var x: Int = 0
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//expected-note@-1{{did you mean 'x'?}}
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func test() {
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let _: m1<Int> = _x
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// expected-error@-1{{cannot find '_x' in scope}}
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}
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}
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struct TestMacroArgs {
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@m1("extra arg") struct Args1 {} // expected-error{{argument passed to macro expansion that takes no arguments}}
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@m2(10) struct Args2 {}
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@m2(10.0) struct Args3 {}
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@m2("") struct Args4 {} // expected-error{{no exact matches in call to macro 'm2'}}
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@m2(Nested.x) struct Args5 {}
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@m4(10) struct Args6 { } // expected-error{{missing argument for parameter 'label2' in macro expansion}}{{9-9=, label2: <#String#>}}
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@m4(label2: "test") struct Args7 { } // expected-error{{missing argument for parameter #1 in macro expansion}}{{7-7=<#Int#>, }}
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struct Nested {
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static let x = 10
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@m2(x) struct Args1 {}
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@m2(Nested.x) struct Args2 {}
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}
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@m3(message: stringify(Nested.x).1) struct Args8 {}
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// expected-error@-1{{expansion of macro 'stringify' requires leading '#'}}
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@m3(message: #stringify().1) struct Args9 {}
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// expected-error@-1{{missing argument for parameter #1 in macro expansion}}
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@m3(message: #stringify(Nested.x).1) struct Args10 {}
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// Allow macros to have arbitrary generic specialization lists, but warn
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// https://github.com/swiftlang/swift/issues/75500
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@m1<UInt> struct Args11 {} // expected-warning {{cannot specialize a non-generic external macro 'm1()'}}
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}
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