| // RUN: %target-parse-verify-swift -parse-as-library |
| |
| lazy func lazy_func() {} // expected-error {{'lazy' may only be used on 'var' declarations}} {{1-6=}} |
| |
| lazy var b = 42 // expected-error {{'lazy' may not be used on an already-lazy global}} {{1-6=}} |
| |
| struct S { |
| lazy static var lazy_global = 42 // expected-error {{'lazy' may not be used on an already-lazy global}} {{3-8=}} |
| } |
| |
| protocol SomeProtocol { |
| lazy var x : Int // expected-error {{'lazy' isn't allowed on a protocol requirement}} {{3-8=}} |
| lazy var y : Int { get } // expected-error {{'lazy' isn't allowed on a protocol requirement}} {{3-8=}} |
| } |
| |
| |
| class TestClass { |
| lazy var a = 42 |
| lazy var a1 : Int = 42 |
| |
| lazy let b = 42 // expected-error {{'lazy' cannot be used on a let}} {{3-8=}} |
| |
| lazy var c : Int { return 42 } // expected-error {{'lazy' may not be used on a computed property}} {{3-8=}} |
| |
| lazy var d : Int // expected-error {{lazy properties must have an initializer}} {{3-8=}} |
| |
| lazy var (e, f) = (1,2) // expected-error {{'lazy' cannot destructure an initializer}} {{3-8=}} |
| |
| lazy var g : Int = { 0 }() // single-expr closure |
| |
| lazy var h : Int = { return 0 }()+1 // multi-stmt closure |
| |
| lazy var i : Int = 42 { // expected-error {{lazy properties may not have observers}} {{3-8=}} |
| didSet { |
| } |
| } |
| |
| // Lazy values can have observers, be NSCopying, etc. |
| /* lazy var d : Int = 42 { |
| didSet { |
| print("set me") |
| } |
| }*/ |
| |
| init() { |
| lazy var localvar = 42 // expected-error {{lazy is only valid for members of a struct or class}} {{5-10=}} |
| localvar += 1 |
| _ = localvar |
| } |
| } |
| |
| |
| struct StructTest { |
| lazy var p1 : Int = 42 |
| |
| mutating func f1() -> Int { |
| return p1 |
| } |
| |
| // expected-note @+1 {{mark method 'mutating' to make 'self' mutable}} {{3-3=mutating }} |
| func f2() -> Int { |
| return p1 // expected-error {{cannot use mutating getter on immutable value: 'self' is immutable}} |
| } |
| |
| static func testStructInits() { |
| let a = StructTest() // default init |
| let b = StructTest(p1: 42) // Override the lazily init'd value. |
| _ = a; _ = b |
| } |
| } |
| |
| |
| // <rdar://problem/16889110> capture lists in lazy member properties cannot use self |
| class CaptureListInLazyProperty { |
| lazy var closure: () -> Int = { [weak self] in return self!.i } |
| var i = 42 |
| } |
| |
| |