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Intermediate interfaces don't need interface forwarders, since the Kotlin compiler won't try to make them non-abstract by synthesising methods. Super references should always target an immediate superclass, not the ancestor containing the intended implementation.
26 lines
763 B
Java
26 lines
763 B
Java
public class User {
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public static void sink(int x) { }
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// Real is compiled with synthetic interface method forwarders, so it appears from a Java perspective to override the interface Test.
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// RealNoForwards is compiled with -Xjvm-default=all, meaning real Java 8 default interface methods are used, no synthetic forwarders
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// are created, and call resolution should go straight to the default.
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// RealIndirect is similar to Real, except it inherits its methods indirectly via MiddleInterface.
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public static void test(Real r1, RealNoForwards r2, RealIndirect r3) {
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sink(r1.f());
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sink(r1.g(2));
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sink(r1.getX());
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sink(r2.f());
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sink(r2.g(5));
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sink(r2.getX());
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sink(r3.f());
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sink(r3.g(8));
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sink(r3.getX());
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}
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}
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