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42 lines
787 B
Swift
42 lines
787 B
Swift
// RUN: %target-repl-run-simple-swift | FileCheck %s
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// REQUIRES: swift_repl
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protocol Fooable {
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func foo()
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}
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class C {}
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class D: C {}
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func fooify<T>(x: T) {
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if let foo = x as? Fooable {
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foo.foo()
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} else {
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println("--not fooable--")
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}
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}
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fooify(1) // CHECK: --not fooable--
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fooify(1) // CHECK: --not fooable--
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fooify(C()) // CHECK: --not fooable--
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fooify(C()) // CHECK: --not fooable--
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fooify(D()) // CHECK: --not fooable--
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fooify(D()) // CHECK: --not fooable--
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extension Int: Fooable {
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func foo() { println("--Int--") }
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}
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fooify(1) // CHECK: --Int--
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fooify(1) // CHECK: --Int--
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extension D: Fooable {
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func foo() { println("--D--") }
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}
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fooify(D()) // CHECK: D
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fooify(D()) // CHECK: D
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fooify(C()) // CHECK: --not fooable--
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fooify(C()) // CHECK: --not fooable--
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