Evgeniy.Zhelenskiy
89 lines
1.9 KiB
Kotlin
Vendored
89 lines
1.9 KiB
Kotlin
Vendored
// WITH_STDLIB
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// WORKS_WHEN_VALUE_CLASS
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// LANGUAGE: +ValueClasses
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var setterInvoked = 0
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var backing = 42
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OPTIONAL_JVM_INLINE_ANNOTATION
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value class DelegateStr(val ignored: String) {
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operator fun getValue(thisRef: Any?, prop: Any?) =
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backing
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operator fun setValue(thisRef: Any?, prop: Any?, newValue: Int) {
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setterInvoked++
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backing = newValue
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}
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}
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OPTIONAL_JVM_INLINE_ANNOTATION
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value class DelegateInt(val ignored: Int) {
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operator fun getValue(thisRef: Any?, prop: Any?) =
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backing
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operator fun setValue(thisRef: Any?, prop: Any?, newValue: Int) {
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setterInvoked++
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backing = newValue
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}
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}
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OPTIONAL_JVM_INLINE_ANNOTATION
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value class DelegateLong(val ignored: Long) {
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operator fun getValue(thisRef: Any?, prop: Any?) =
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backing
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operator fun setValue(thisRef: Any?, prop: Any?, newValue: Int) {
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setterInvoked++
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backing = newValue
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}
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}
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fun box(): String {
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setterInvoked = 0
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testDelegateStr()
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if (setterInvoked != 1) throw AssertionError()
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setterInvoked = 0
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testDelegateInt()
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if (setterInvoked != 1) throw AssertionError()
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setterInvoked = 0
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testDelegateLong()
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if (setterInvoked != 1) throw AssertionError()
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return "OK"
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}
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private fun testDelegateStr() {
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var localD by DelegateStr("don't care")
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if (localD != 42) AssertionError()
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localD = 1234
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if (localD != 1234) throw AssertionError()
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if (backing != 1234) throw AssertionError()
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}
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private fun testDelegateInt() {
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var localD by DelegateInt(999)
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if (localD != 42) AssertionError()
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localD = 1234
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if (localD != 1234) throw AssertionError()
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if (backing != 1234) throw AssertionError()
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}
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private fun testDelegateLong() {
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var localD by DelegateLong(999L)
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if (localD != 42) AssertionError()
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localD = 1234
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if (localD != 1234) throw AssertionError()
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if (backing != 1234) throw AssertionError()
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} |