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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.)
15 lines
239 B
Kotlin
Vendored
15 lines
239 B
Kotlin
Vendored
class Outer() {
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open inner class InnerBase() {
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}
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inner class InnerDerived(): InnerBase() {
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}
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public val foo: InnerBase? = InnerDerived()
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}
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fun box() : String {
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val o = Outer()
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return if (o.foo === null) "fail" else "OK"
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}
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