Jiaxiang Chen
afcbd76c9e
This change is to fill the gap between Kotlin Collection classes(immutable) and Java Collection classes(mutable), to avoid calling an unsupported operation like remove() on an immutable class in jvm.
20 lines
593 B
Kotlin
Vendored
20 lines
593 B
Kotlin
Vendored
// TARGET_BACKEND: JVM
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class MyCollection<T> : Collection<List<Iterator<T>>> {
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override fun iterator() = null!!
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override val size: Int get() = null!!
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override fun isEmpty(): Boolean = null!!
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override fun contains(o: List<Iterator<T>>): Boolean = null!!
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override fun containsAll(c: Collection<List<Iterator<T>>>): Boolean = null!!
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}
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fun box(): String {
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val c = MyCollection<String>() as java.util.Collection<List<Iterator<String>>>
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try {
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c.add(ArrayList())
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return "Fail"
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} catch (e: UnsupportedOperationException) {
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return "OK"
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}
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}
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