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@freestanding(expression)
public macro FileID<T: ExpressibleByStringLiteral>() -> T = #externalMacro(
module: "MacroDefinition", type: "NativeFileIDMacro"
)
@freestanding(expression)
public macro PrependHelloToShadowed() -> String = #externalMacro(
module: "MacroDefinition", type: "PrependHelloToShadowedMacro"
)
@freestanding(expression)
public macro MakeClosureCaller() -> ClosureCaller = #externalMacro(
module: "MacroDefinition", type: "ClosureCallerMacro"
)
public func printCurrentFileDefinedInAnotherModuleInterface(
file: String = #FileID
) {
print(file)
}
public struct ClosureCaller {
private let callback: @convention(thin) (Any, () -> Void) -> Void
public init(_ callback: @convention(thin) (Any, () -> Void) -> Void) {
self.callback = callback
}
public func callAsFunction(context: Any, then: () -> Void = {}) {
callback(context, then)
}
}
public let shadowed = "world"
public func preferVariableFromLocalScope(
param: String = #PrependHelloToShadowed
) {
print(param)
}
@resultBuilder
public enum ClosureCallerBuilder {
public static func buildBlock(
closureCaller: ClosureCaller = #MakeClosureCaller
) -> ClosureCaller {
closureCaller
}
}
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