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Inner class constructors should use the argument instead of reading outer `this` from a field because if such an access happens before a delegating constructor call, e.g. when evaluating an argument, a JVM bytecode validation error will be thrown. (The only operation on `this` allowed before a delegating constructor call is SETFIELD, and only if the field in question is declared in the same class.)
14 lines
326 B
Kotlin
Vendored
14 lines
326 B
Kotlin
Vendored
open class A(val s: String) {
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open inner class B(s: String): A(s)
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open inner class C(s: String, additional: Double): B(s)
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open inner class D(other: Int, another: Long, s: String) : C(s, another.toDouble())
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open inner class E : D(0, 42L, "OK")
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inner class F : E()
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}
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fun box(): String = A("Fail").F().s
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