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44 lines
954 B
Swift
44 lines
954 B
Swift
// RUN: %target-run-simple-swift | FileCheck %s
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// REQUIRES: executable_test
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protocol RollCallable {
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func rollCall() -> String
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}
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protocol Snarker {
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func snark() -> String
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}
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struct Cambot : RollCallable {
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func rollCall() -> String { return "Cambot!" }
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}
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struct Gypsy : RollCallable {
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func rollCall() -> String { return "Gypsy!" }
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}
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struct TomServo : RollCallable {
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func rollCall() -> String { return "Tom Servo!" }
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}
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struct Crow : RollCallable, Snarker {
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func rollCall() -> String { return "Croooow!" }
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func snark() -> String { return "That's one O!" }
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}
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func printRollCall(x: RollCallable) {
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print(x.rollCall())
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}
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func printRollCallWithSnark(x: protocol<RollCallable, Snarker>) {
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printRollCall(x)
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print("(\(x.snark()))")
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}
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// CHECK: Cambot!
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printRollCall(Cambot())
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// CHECK: Gypsy!
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printRollCall(Gypsy())
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// CHECK: Tom Servo!
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printRollCall(TomServo())
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// CHECK: Croooow!
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// CHECK: (That's one O!)
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printRollCallWithSnark(Crow())
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