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// REQUIRES: swift_swift_parser
// sandbox-exec is only avaiable in Darwin
// REQUIRES: OS=macosx
// RUN: %empty-directory(%t)
// RUN: %empty-directory(%t/plugins)
// RUN: split-file %s %t
//== Build the plugins
// RUN: %host-build-swift \
// RUN: -swift-version 5 \
// RUN: -emit-library \
// RUN: -o %t/plugins/%target-library-name(MacroDefinition) \
// RUN: -module-name=MacroDefinition \
// RUN: %t/MacroDefinition.swift \
// RUN: -g -no-toolchain-stdlib-rpath
// RUN: %swift-build-c-plugin -o %t/mock-plugin %t/TestPlugin.c
//== Nested sandbox. Expected to fail because sandbox-exec doesn't support nested sandboxing.
// RUN: not sandbox-exec -p '(version 1)(allow default)' \
// RUN: %target-swift-frontend \
// RUN: -typecheck -verify \
// RUN: -swift-version 5 \
// RUN: -external-plugin-path %t/plugins#%swift-plugin-server \
// RUN: -load-plugin-executable %t/mock-plugin#TestPlugin \
// RUN: -module-name MyApp \
// RUN: %t/test.swift
//== Avoid nested sandbox by -disable-sandbox
// RUN: sandbox-exec -p '(version 1)(allow default)' \
// RUN: %target-swift-frontend \
// RUN: -disable-sandbox \
// RUN: -typecheck -verify \
// RUN: -swift-version 5 \
// RUN: -external-plugin-path %t/plugins#%swift-plugin-server \
// RUN: -load-plugin-executable %t/mock-plugin#TestPlugin \
// RUN: -module-name MyApp \
// RUN: %t/test.swift
//--- MacroDefinition.swift
import SwiftSyntax
import SwiftSyntaxBuilder
import SwiftSyntaxMacros
public struct StringifyMacro: ExpressionMacro {
public static func expansion(
of macro: some FreestandingMacroExpansionSyntax,
in context: some MacroExpansionContext
) -> ExprSyntax {
guard let argument = macro.arguments.first?.expression else {
fatalError("boom")
}
return "(\(argument), \(StringLiteralExprSyntax(content: argument.description)))"
}
}
//--- TestPlugin.c
#include "swift-c/MockPlugin/MockPlugin.h"
MOCK_PLUGIN([
{
"expect": {"getCapability": {}},
"response": {"getCapabilityResult": {"capability": {"protocolVersion": 1}}}
},
{
"expect": {"expandFreestandingMacro": {
"macro": {"moduleName": "TestPlugin", "typeName": "TestStringMacro"}}},
"response": {"expandMacroResult": {"expandedSource": "\"test string\"", "diagnostics": []}}
}
])
//--- test.swift
@freestanding(expression) macro stringify<T>(_ value: T) -> (T, String) = #externalMacro(module: "MacroDefinition", type: "StringifyMacro")
@freestanding(expression) macro testString() -> String = #externalMacro(module: "TestPlugin", type: "TestStringMacro")
func test() {
let _: String = #stringify(42).1
let _: String = #testString
}
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