Mercurial > jdk8-mips64-public > langtools / file diff

     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/test/tools/javac/lambda/LambdaConv21.java	Sat Nov 17 19:01:03 2012 +0000
     1.3 @@ -0,0 +1,38 @@
     1.4 +/*
     1.5 + * @test /nodynamiccopyright/
     1.6 + * @bug 8003280
     1.7 + * @summary Add lambda tests
     1.8 + *  check that code generation handles void-compatibility correctly
     1.9 + * @compile/fail/ref=LambdaConv21.out -XDrawDiagnostics LambdaConv21.java
    1.10 + */
    1.11 +
    1.12 +class LambdaConv21 {
    1.13 +
    1.14 +    interface SAM_void<X> {
    1.15 +        void m();
    1.16 +    }
    1.17 +
    1.18 +    interface SAM_java_lang_Void {
    1.19 +        Void m();
    1.20 +    }
    1.21 +
    1.22 +    static void m_void() { }
    1.23 +
    1.24 +    static Void m_java_lang_Void() { return null; }
    1.25 +
    1.26 +    static void testExpressionLambda() {
    1.27 +        SAM_void s1 = ()->m_void(); //ok
    1.28 +        SAM_java_lang_Void s2 = ()->m_void(); //no - incompatible target
    1.29 +        SAM_void s3 = ()->m_java_lang_Void(); //no - incompatible target
    1.30 +        SAM_java_lang_Void s4 = ()->m_java_lang_Void(); //ok
    1.31 +    }
    1.32 +
    1.33 +    static void testStatementLambda() {
    1.34 +        SAM_void s1 = ()-> { m_void(); }; //ok
    1.35 +        SAM_java_lang_Void s2 = ()-> { m_void(); }; //no - missing return value
    1.36 +        SAM_void s3 = ()-> { return m_java_lang_Void(); }; //no - unexpected return value
    1.37 +        SAM_java_lang_Void s4 = ()-> { return m_java_lang_Void(); }; //ok
    1.38 +        SAM_void s5 = ()-> { m_java_lang_Void(); }; //ok
    1.39 +        SAM_java_lang_Void s6 = ()-> { m_java_lang_Void(); }; //no - missing return value
    1.40 +    }
    1.41 +}