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.
42 lines
1.3 KiB
Kotlin
Vendored
42 lines
1.3 KiB
Kotlin
Vendored
// TARGET_BACKEND: JVM
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class MyList<T>: List<T> {
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override val size: Int get() = 0
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override fun isEmpty(): Boolean = true
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override fun contains(o: T): Boolean = false
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override fun iterator(): Iterator<T> = throw Error()
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override fun containsAll(c: Collection<T>): Boolean = false
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override fun get(index: Int): T = throw IndexOutOfBoundsException()
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override fun indexOf(o: T): Int = -1
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override fun lastIndexOf(o: T): Int = -1
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override fun listIterator(): ListIterator<T> = throw Error()
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override fun listIterator(index: Int): ListIterator<T> = throw Error()
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override fun subList(fromIndex: Int, toIndex: Int): List<T> = this
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override fun hashCode(): Int = 0
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override fun equals(other: Any?): Boolean = false
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}
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fun expectUoe(block: () -> Any) {
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try {
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block()
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throw AssertionError()
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} catch (e: UnsupportedOperationException) {
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}
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}
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fun box(): String {
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val list = MyList<String>() as java.util.List<String>
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expectUoe { list.add("") }
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expectUoe { list.remove("") }
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expectUoe { list.addAll(list) }
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expectUoe { list.removeAll(list) }
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expectUoe { list.retainAll(list) }
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expectUoe { list.clear() }
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expectUoe { list.set(0, "") }
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expectUoe { list.add(0, "") }
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expectUoe { list.remove(0) }
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return "OK"
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}
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