Mads Ager
36 lines
1.3 KiB
Kotlin
Vendored
36 lines
1.3 KiB
Kotlin
Vendored
// IGNORE_BACKEND_FIR: JVM_IR
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// IGNORE_BACKEND: JS
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private object NotEmptyMap : MutableMap<Any, Any> {
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override fun containsKey(key: Any): Boolean = true
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override fun containsValue(value: Any): Boolean = true
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override fun get(key: Any): Any? = Any()
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override fun remove(key: Any): Any? = Any()
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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 put(key: Any, value: Any): Any? = throw UnsupportedOperationException()
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override fun putAll(from: Map<out Any, Any>): Unit = throw UnsupportedOperationException()
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override fun clear(): Unit = throw UnsupportedOperationException()
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override val entries: MutableSet<MutableMap.MutableEntry<Any, Any>> get() = null!!
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override val keys: MutableSet<Any> get() = null!!
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override val values: MutableCollection<Any> get() = null!!
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}
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fun box(): String {
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val n = NotEmptyMap as MutableMap<Any?, Any?>
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if (n.get(null) != null) return "fail 1"
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if (n.containsKey(null)) return "fail 2"
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if (n.containsValue(null)) return "fail 3"
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if (n.remove(null) != null) return "fail 4"
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if (n.get("") == null) return "fail 5"
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if (!n.containsKey("")) return "fail 6"
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if (!n.containsValue("")) return "fail 7"
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if (n.remove("") == null) return "fail 8"
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return "OK"
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}
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