Svetlana Isakova
23 lines
529 B
Kotlin
23 lines
529 B
Kotlin
package invoke
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fun test1(predicate: (Int) -> Int, i: Int) = predicate(i)
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fun test2(predicate: (Int) -> Int, i: Int) = predicate.invoke(i)
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class Method {
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fun invoke(i: Int) = i
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}
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fun test3(method: Method, i: Int) = method.invoke(i)
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//todo
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//fun test4(method: Method, i: Int) = method(i)
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fun box() : String {
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if (test1({ it }, 1) != 1) return "fail 1"
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if (test2({ it }, 2) != 2) return "fail 2"
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if (test3(Method(), 3) != 3) return "fail 3"
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//if (test4(Method(), 4) != 4) return "fail 4"
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return "OK"
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}
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