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51 lines
1.3 KiB
Swift
51 lines
1.3 KiB
Swift
// RUN: %swift -i %s | FileCheck %s
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// REQUIRES: swift_interpreter
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enum Bewl : LogicValue {
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case False, True
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func getLogicValue() -> Bool {
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switch self {
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case .False:
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return false
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case .True:
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return true
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}
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}
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}
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func truthy() -> Bewl {
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print("truthy ")
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return .True
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}
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func falsy() -> Bewl {
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print("falsy ")
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return .False
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}
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func logicValueTests() {
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// Logic values should convert to bool.
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struct X : LogicValue {
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func getLogicValue() -> Bool { return false }
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}
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var anX = X()
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println("LogicValue Bool = \(Bool(anX))") // CHECK: LogicValue Bool = false
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println("\(!Bewl.True)") // CHECK: false
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println("\(!Bewl.False)") // CHECK: true
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// Test short-circuiting operators
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println("\(Bool(truthy() && truthy()))") // CHECK: truthy truthy true
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println("\(Bool(truthy() && falsy()))") // CHECK: truthy falsy false
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println("\(Bool(falsy() && truthy()))") // CHECK: falsy false
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println("\(Bool(falsy() && falsy()))") // CHECK: falsy false
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println("\(Bool(truthy() || truthy()))") // CHECK: truthy true
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println("\(Bool(truthy() || falsy()))") // CHECK: truthy true
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println("\(Bool(falsy() || truthy()))") // CHECK: falsy truthy true
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println("\(Bool(falsy() || falsy()))") // CHECK: falsy falsy false
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}
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logicValueTests()
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