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- struct MyValue {
- var name: String
- }
- extension MyValue {
- static func ~= (pattern: String, value: MyValue) -> Bool {
- return value.name.hasPrefix(pattern)
- }
- }
- let value = MyValue(name: "NSString")
- switch value {
- case "NS":
- print("Yes") // Yes
- default:
- print("NO")
- }
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