Jinseong Jeon
34 lines
814 B
Kotlin
Vendored
34 lines
814 B
Kotlin
Vendored
class Binder() {
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lateinit var bindee: Container<*>
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fun bind(subject: Container<*>): String {
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bindee = subject
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return when(subject.containee) {
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is Foo -> bind(subject.containee)
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is Bar -> bind(subject.containee)
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else -> TODO()
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}
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}
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private fun bind(foo: Foo): String {
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return "binding $foo"
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}
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private fun bind(bar: Bar): String {
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return "binding $bar"
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}
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}
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class Container<out T>(val containee: T)
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data class Foo(val x: Int = 0)
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data class Bar(val y: Int = 0)
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fun box(): String {
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val f = Container(Foo(1))
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val b = Container(Bar(2))
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val binder = Binder()
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if (binder.bind(f) != "binding Foo(x=1)") return "fail 1"
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if (binder.bind(b) != "binding Bar(y=2)") return "fail 2"
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return "OK"
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} |