langtools/test/tools/javac/generics/diamond/neg/Neg14.java
author sadayapalam
Mon, 30 Mar 2015 17:09:14 +0530
changeset 29776 984a79b71cfe
permissions -rw-r--r--
8062373: Project Coin: diamond and anonymous classes Summary: Allow diamond inference in combination with anonymous class instance creation Reviewed-by: mcimadamore, vromero Contributed-by: srikanth.adayapalam@oracle.com, maurizio.cimadamore@oracle.com
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/*
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 * @test /nodynamiccopyright/
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 * @bug 8062373
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 *
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 * @summary  Test diamond + anonymous classes with super type being an interface.
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 * @author sadayapalam
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 * @compile/fail/ref=Neg14.out Neg14.java -XDrawDiagnostics
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 *
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 */
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class Neg14 {
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    static interface A<T> {
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        void foo();
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    }
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    static void foo(A<String> as) {}
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    public static void main(String[] args) {
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        // Method invocation context - good <>(){}
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        foo(new A<>() {
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            public void foo() {}
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        });
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        // Assignment context - good <>(){}
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        A<?> aq = new A<>() {
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            public void foo() {}
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        };
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        // When the anonymous type subtypes an interface but is missing definitions for
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        // abstract methods, expect no overload resolution error, but an attribution error
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        // while attributing anonymous class body.
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        // Method invocation context - bad <>(){}
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        foo(new A<>() {
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        });
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        // Assignment invocation context - bad <>(){}
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        aq = new A<>() {
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        };
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        // Method invocation context - bad <>()
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        foo(new A<>());
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        // Assignment invocation context - bad <>()
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        aq = new A<>();
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    }
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}