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// RUN: %target-typecheck-verify-swift
struct Projection<T> {
var value: T
}
@propertyWrapper
struct Wrapper<T> {
var wrappedValue: T
init(wrappedValue: T) {
self.wrappedValue = wrappedValue
}
var projectedValue: Projection<T> {
Projection(value: wrappedValue)
}
init(projectedValue: Projection<T>) {
self.wrappedValue = projectedValue.value
}
}
@propertyWrapper
struct ImplementationDetailWrapper<T> {
var wrappedValue: T
init(wrappedValue: T) {
self.wrappedValue = wrappedValue
}
}
func globalFunc(@Wrapper arg: Int) {
let _: Int = arg
let _: Projection<Int> = $arg
let _: Wrapper<Int> = _arg
}
func testGlobalFunc(value: Int, projection: Projection<Int>) {
globalFunc(arg: value)
globalFunc($arg: projection)
let _: (Int) -> Void = globalFunc
let _: (Int) -> Void = globalFunc(arg:)
let _: (Projection<Int>) -> Void = globalFunc($arg:)
}
func globalFuncWithImplementationDetailWrapper(@ImplementationDetailWrapper arg: Int) {
let _: Int = arg
let _: ImplementationDetailWrapper<Int> = _arg
}
func testGlobalFuncWithImplementationDetailWrapper(value: Int) {
globalFuncWithImplementationDetailWrapper(arg: value)
let _: (Int) -> Void = globalFuncWithImplementationDetailWrapper
let _: (Int) -> Void = globalFuncWithImplementationDetailWrapper(arg:)
}
struct S<Value> {
func method(@Wrapper arg: Value) {
let _: Value = arg
let _: Projection<Value> = $arg
let _: Wrapper<Value> = _arg
}
func methodWithImplementationDetailWrapper(@ImplementationDetailWrapper arg: Value) {
let _: Value = arg
let _: ImplementationDetailWrapper<Value> = _arg
}
static func staticMethod(@Wrapper arg: Value) {
let _: Value = arg
let _: Projection<Value> = $arg
let _: Wrapper<Value> = _arg
}
static func staticMethodWithImplementationDetailWrapper(@ImplementationDetailWrapper arg: Value) {
let _: Value = arg
let _: ImplementationDetailWrapper<Value> = _arg
}
}
func testMethods(instance: S<String>, Metatype: S<String>.Type,
@Wrapper value: String) {
Metatype.staticMethod(arg: value)
Metatype.staticMethod($arg: $value)
instance.method(arg: value)
instance.method($arg: $value)
let _: (String) -> Void = Metatype.staticMethod
let _: (String) -> Void = Metatype.staticMethod(arg:)
let _: (Projection<String>) -> Void = Metatype.staticMethod($arg:)
let _: (String) -> Void = instance.method
let _: (String) -> Void = instance.method(arg:)
let _: (Projection<String>) -> Void = instance.method($arg:)
let _: (String) -> Void = instance.method
let _: (String) -> Void = instance.method(arg:)
let _: (Projection<String>) -> Void = instance.method($arg:)
let _: (S) -> (String) -> Void = Metatype.method
let _: (S) -> (String) -> Void = Metatype.method(arg:)
let _: (S) -> (Projection<String>) -> Void = Metatype.method($arg:)
}
func testMethodsWithImplementationDetailWrapper(instance: S<String>, Metatype: S<String>.Type,
@ImplementationDetailWrapper value: String) {
Metatype.staticMethodWithImplementationDetailWrapper(arg: value)
instance.methodWithImplementationDetailWrapper(arg: value)
let _: (String) -> Void = Metatype.staticMethodWithImplementationDetailWrapper
let _: (String) -> Void = Metatype.staticMethodWithImplementationDetailWrapper(arg:)
let _: (String) -> Void = instance.methodWithImplementationDetailWrapper
let _: (String) -> Void = instance.methodWithImplementationDetailWrapper(arg:)
let _: (S) -> (String) -> Void = Metatype.methodWithImplementationDetailWrapper
let _: (S) -> (String) -> Void = Metatype.methodWithImplementationDetailWrapper(arg:)
}
func testClosures() {
typealias PropertyWrapperTuple = (Wrapper<Int>, Int, Projection<Int>)
let _: (Int) -> PropertyWrapperTuple = { (@Wrapper value) in
(_value, value, $value)
}
let _: (Projection<Int>) -> PropertyWrapperTuple = { (@Wrapper $value) in
(_value, value, $value)
}
}
func testClosuresWithImplementationDetailWrapper() {
let _: (Int) -> (ImplementationDetailWrapper<Int>, Int) = { (@ImplementationDetailWrapper value) in
(_value, value)
}
}
func projectionPlaceholder<T>(@Wrapper _ value: T) {}
func testOmittedProjectionLabel(value: Int) {
projectionPlaceholder($_: Projection(value: value))
}
@propertyWrapper
struct ProjectionWrapper<Value> {
var wrappedValue: Value
var projectedValue: ProjectionWrapper<Value> { self }
init(wrappedValue: Value) { self.wrappedValue = wrappedValue }
init(projectedValue: ProjectionWrapper<Value>) {
self.wrappedValue = projectedValue.wrappedValue
}
}
func testImplicitPropertyWrapper() {
typealias PropertyWrapperTuple = (ProjectionWrapper<Int>, Int, ProjectionWrapper<Int>)
let _: (ProjectionWrapper<Int>) -> PropertyWrapperTuple = { $value in
(_value, value, $value)
}
}
@resultBuilder
struct PairBuilder {
static func buildBlock<T1, T2>(_ t1: T1, _ t2: T2) -> (T1, T2) {
return (t1, t2)
}
}
func takesResultBuilder<Projection, T1, T2>(projection: Projection,
@PairBuilder _ closure: (Projection) -> (T1, T2)) {}
func testResultBuilderWithImplicitWrapper(@ProjectionWrapper value: String) {
takesResultBuilder(projection: $value) { $value in
value
$value
}
}
func takesWrapperClosure<T>(_: ProjectionWrapper<[S<T>]>, closure: (ProjectionWrapper<S<T>>) -> Void) {}
func testGenericPropertyWrapper<U>(@ProjectionWrapper wrappers: [S<U>]) {
takesWrapperClosure($wrappers) { $wrapper in }
}
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