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0f25f023e8
We should no longer say "macro implementation must be provided via '-load-plugin-library'" as there are multiple ways to pick up a macro dependency. Here's an improved version: > warning: external macro implementation type 'MissingModule.MissingType' could not be found for macro 'missingMacro1'; the type must be public and provided by a macro target in a Swift package, or via '-plugin-path' or '-load-plugin-library'
71 lines
2.8 KiB
Swift
71 lines
2.8 KiB
Swift
// REQUIRES: swift_swift_parser
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// RUN: %target-typecheck-verify-swift -swift-version 5 -module-name MacrosTest
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@attached(accessor) macro m1() = #externalMacro(module: "MyMacros", type: "Macro1")
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// expected-warning@-1{{external macro implementation type 'MyMacros.Macro1' could not be found for macro 'm1()'}}
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// expected-note@-2{{'m1()' declared here}}
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@attached(accessor) macro m2(_: Int) -> Void = #externalMacro(module: "MyMacros", type: "Macro2")
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// expected-warning@-1{{external macro implementation type 'MyMacros.Macro2' could not be found for macro 'm2'}}
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// expected-note@-2{{candidate has partially matching parameter list (Int)}}
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// expected-note@-3{{candidate expects value of type 'Int' for parameter #1 (got 'String')}}
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@attached(accessor) macro m2(_: Double) -> Void = #externalMacro(module: "MyMacros", type: "Macro2")
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// expected-warning@-1{{external macro implementation type 'MyMacros.Macro2' could not be found for macro 'm2'}}
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// expected-note@-2{{candidate has partially matching parameter list (Double)}}
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// expected-note@-3{{candidate expects value of type 'Double' for parameter #1 (got 'String')}}
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@attached(accessor) macro m3(message: String) -> Void = #externalMacro(module: "MyMacros", type: "Macro3")
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// expected-warning@-1{{external macro implementation type 'MyMacros.Macro3' could not be found for macro 'm3(message:)'}}
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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{{no exact matches in call to macro 'm2'}}
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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-error@-1{{external macro implementation type 'MyMacros.Macro1' could not be found for macro 'm1()'}}
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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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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 Args6 {}
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// expected-error@-1{{expansion of macro 'stringify' requires leading '#'}}
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@m3(message: #stringify().1) struct Args7 {}
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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 Args8 {}
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}
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