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.
47 lines
1.5 KiB
Kotlin
Vendored
47 lines
1.5 KiB
Kotlin
Vendored
// TARGET_BACKEND: JVM
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open class Super<T>(val v: T) {
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public fun add(e: T): Boolean = true
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public fun remove(o: T): Boolean = true
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public fun addAll(c: Collection<T>): Boolean = true
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public fun addAll(index: Int, c: Collection<T>): Boolean = true
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public fun removeAll(c: Collection<T>): Boolean = true
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public fun retainAll(c: Collection<T>): Boolean = true
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public fun clear() {}
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public fun set(index: Int, element: T): T = element
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public fun add(index: Int, element: T) {}
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public fun removeAt(index: Int): T = v
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}
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class MyList<T>(v: T): Super<T>(v), 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 = v
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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> = throw Error()
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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 box(): String {
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val list = MyList<String>("") as java.util.List<String>
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list.add("")
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list.remove("")
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list.addAll(list)
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list.removeAll(list)
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list.retainAll(list)
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list.clear()
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list.set(0, "")
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list.add(0, "")
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list.remove(0)
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return "OK"
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}
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