external-macro-without-decl.swift

// REQUIRES: swift_swift_parser

// RUN: %target-typecheck-verify-swift -swift-version 5 -module-name Swift -parse-stdlib

// expected-warning@+2{{'@expression' has been removed in favor of '@freestanding(expression)'}}
// expected-warning@+1{{external macro implementation type 'A.B' could not be found for macro 'myMacro()'}}
@expression macro myMacro()= #externalMacro(module:"A", type:"B")

// Protocols needed for string literals to work
publicprotocolExpressibleByUnicodeScalarLiteral{
associatedtypeUnicodeScalarLiteralType:_ExpressibleByBuiltinUnicodeScalarLiteral

init(unicodeScalarLiteral value:UnicodeScalarLiteralType)
}

publicprotocol_ExpressibleByBuiltinExtendedGraphemeClusterLiteral
:_ExpressibleByBuiltinUnicodeScalarLiteral{

init(
 _builtinExtendedGraphemeClusterLiteral start:Builtin.RawPointer,
 utf8CodeUnitCount:Builtin.Word,
 isASCII:Builtin.Int1)
}

publicprotocolExpressibleByExtendedGraphemeClusterLiteral
:ExpressibleByUnicodeScalarLiteral{

associatedtypeExtendedGraphemeClusterLiteralType
:_ExpressibleByBuiltinExtendedGraphemeClusterLiteral

init(extendedGraphemeClusterLiteral value:ExtendedGraphemeClusterLiteralType)
}

extensionExpressibleByExtendedGraphemeClusterLiteral
where ExtendedGraphemeClusterLiteralType ==UnicodeScalarLiteralType{

@_transparent
publicinit(unicodeScalarLiteral value:ExtendedGraphemeClusterLiteralType){
self.init(extendedGraphemeClusterLiteral: value)
}
}

publicprotocol_ExpressibleByBuiltinStringLiteral
:_ExpressibleByBuiltinExtendedGraphemeClusterLiteral{

init(
 _builtinStringLiteral start:Builtin.RawPointer,
 utf8CodeUnitCount:Builtin.Word,
 isASCII:Builtin.Int1)
}

publicprotocolExpressibleByStringLiteral
:ExpressibleByExtendedGraphemeClusterLiteral{
associatedtypeStringLiteralType:_ExpressibleByBuiltinStringLiteral

init(stringLiteral value:StringLiteralType)
}

extensionExpressibleByStringLiteral
where StringLiteralType ==ExtendedGraphemeClusterLiteralType{

@_transparent
publicinit(extendedGraphemeClusterLiteral value:StringLiteralType){
self.init(stringLiteral: value)
}
}

publicprotocol_ExpressibleByBuiltinUnicodeScalarLiteral{
init(_builtinUnicodeScalarLiteral value:Builtin.Int32)
}