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75 lines
2.2 KiB
Swift
75 lines
2.2 KiB
Swift
// REQUIRES: swift_swift_parser
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// RUN: %empty-directory(%t/src)
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// RUN: %empty-directory(%t/plugins)
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// RUN: %empty-directory(%t/plugins_local)
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// RUN: split-file %s %t/src
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//#-- Prepare the macro dylib plugin.
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// RUN: %host-build-swift \
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// RUN: -swift-version 5 \
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// RUN: -emit-library -o %t/plugins/%target-library-name(MacroDefinition) \
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// RUN: -module-name MacroDefinition \
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// RUN: %t/src/MacroDefinition.float.swift \
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// RUN: -g -no-toolchain-stdlib-rpath
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//#-- Prepare the macro dylib plugin.
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// RUN: %host-build-swift \
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// RUN: -swift-version 5 \
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// RUN: -emit-library -o %t/plugins_local/%target-library-name(MacroDefinition) \
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// RUN: -module-name MacroDefinition \
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// RUN: %t/src/MacroDefinition.int.swift \
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// RUN: -g -no-toolchain-stdlib-rpath
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//#-- Check '-load-plugin-library' takes precedence over '-plugin-path'.
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// RUN: %target-swift-frontend -typecheck -verify -swift-version 5 \
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// RUN: -plugin-path %t/plugins \
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// RUN: -load-plugin-library %t/plugins_local/%target-library-name(MacroDefinition) \
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// RUN: %t/src/test.swift
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//#-- Same, but with different argument order.
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// RUN: %target-swift-frontend -typecheck -verify -swift-version 5 \
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// RUN: -load-plugin-library %t/plugins_local/%target-library-name(MacroDefinition) \
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// RUN: -plugin-path %t/plugins \
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// RUN: %t/src/test.swift
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//--- test.swift
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@freestanding(expression) macro constInt() -> Int = #externalMacro(module: "MacroDefinition", type: "ConstMacro")
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func foo() {
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let _: Int = #constInt
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// If 'MacroDefinition.float.swift' is loaded, type checking this fails because it expands to '4.2' which is a float literal.
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}
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//--- MacroDefinition.float.swift
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import SwiftSyntax
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import SwiftSyntaxBuilder
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import SwiftSyntaxMacros
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public struct ConstMacro: ExpressionMacro {
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public static func expansion(
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of macro: some FreestandingMacroExpansionSyntax,
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in context: some MacroExpansionContext
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) -> ExprSyntax {
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return "4.2"
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}
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}
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//--- MacroDefinition.int.swift
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import SwiftSyntax
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import SwiftSyntaxBuilder
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import SwiftSyntaxMacros
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public struct ConstMacro: ExpressionMacro {
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public static func expansion(
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of macro: some FreestandingMacroExpansionSyntax,
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in context: some MacroExpansionContext
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) -> ExprSyntax {
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return "42"
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}
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}
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