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f6db91e3f9
A keypath using dynamic member lookup results in various `KeyPathExpr` that have components with no location. Ignore these and any other references that have a missing location. Resolves rdar://85237365
37 lines
679 B
Swift
37 lines
679 B
Swift
struct Point {
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var x: Int
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var y: Int
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}
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struct Rectangle {
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var topLeft: Point
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var bottomRight: Point
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}
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@dynamicMemberLookup
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struct Lens<T> {
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var obj: T
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init(_ obj: T) {
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self.obj = obj
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}
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subscript<U>(dynamicMember member: WritableKeyPath<T, U>) -> Lens<U> {
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get { return Lens<U>(obj[keyPath: member]) }
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set { obj[keyPath: member] = newValue.obj }
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}
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}
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func test(r: Lens<Rectangle>) {
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_ = r.topLeft
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_ = r.bottomRight.y
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}
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func keyPathTester<V>(keyPath: KeyPath<Lens<Rectangle>, V>) {}
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func testKeyPath() {
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keyPathTester(keyPath: \.topLeft)
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}
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// RUN: %sourcekitd-test -req=sema %s -- %s > %t.response
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// RUN: %diff -u %s.response %t.response
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