test/tools/javac/lambda/MostSpecific09.java

changeset 0
959103a6100f
     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/test/tools/javac/lambda/MostSpecific09.java	Wed Apr 27 01:34:52 2016 +0800
     1.3 @@ -0,0 +1,81 @@
     1.4 +/*
     1.5 + * @test /nodynamiccopyright/
     1.6 + * @bug 8029718
     1.7 + * @summary Should always use lambda body structure to disambiguate overload resolution
     1.8 + * @compile/fail/ref=MostSpecific09.out -XDrawDiagnostics -XDshouldStopPolicy=ATTR -XDverboseResolution=applicable,success MostSpecific09.java
     1.9 + */
    1.10 +
    1.11 +class MostSpecific09 {
    1.12 +
    1.13 +    interface I {
    1.14 +        String xoo(String x);
    1.15 +    }
    1.16 +
    1.17 +    interface J {
    1.18 +        void xoo(int x);
    1.19 +    }
    1.20 +
    1.21 +    static void foo(I i) {}
    1.22 +    static void foo(J j) {}
    1.23 +
    1.24 +    static void moo(I i) {}
    1.25 +    static void moo(J j) {}
    1.26 +
    1.27 +    void m() {
    1.28 +        foo((x) -> { return x += 1; });
    1.29 +        foo((x) -> { return ""; });
    1.30 +        foo((x) -> { System.out.println(""); });
    1.31 +        foo((x) -> { return ""; System.out.println(""); });
    1.32 +        foo((x) -> { throw new RuntimeException(); });
    1.33 +        foo((x) -> { while (true); });
    1.34 +
    1.35 +        foo((x) -> x += 1);
    1.36 +        foo((x) -> "");
    1.37 +    }
    1.38 +
    1.39 +    /* any return statement that is not in the body of the lambda but in an
    1.40 +     * inner class or another lambda should be ignored for value void compatibility
    1.41 +     * determination.
    1.42 +     */
    1.43 +    void m1() {
    1.44 +        boolean cond = true;
    1.45 +        foo((x) -> {
    1.46 +            if (cond) {
    1.47 +                return "";
    1.48 +            }
    1.49 +            System.out.println("");
    1.50 +        });
    1.51 +
    1.52 +        foo((x)->{
    1.53 +            class Bar {
    1.54 +                String m() {
    1.55 +                    return "from Bar.m()";
    1.56 +                }
    1.57 +            }
    1.58 +            class Boo {
    1.59 +                Bar b = new Bar (){
    1.60 +                    String m() {
    1.61 +                        return "from Bar$1.m()";
    1.62 +                    }
    1.63 +                };
    1.64 +            }
    1.65 +            moo((y) -> { return ""; });
    1.66 +            return;
    1.67 +        });
    1.68 +
    1.69 +        foo((x)->{
    1.70 +            class Bar {
    1.71 +                void m() {}
    1.72 +            }
    1.73 +            class Boo {
    1.74 +                Bar b = new Bar (){
    1.75 +                    void m() {
    1.76 +                        return;
    1.77 +                    }
    1.78 +                };
    1.79 +            }
    1.80 +            moo((y) -> { System.out.println(""); });
    1.81 +            return "";
    1.82 +        });
    1.83 +    }
    1.84 +}

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