1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000 1.2 +++ b/test/tools/javac/lambda/LambdaConv21.java Wed Apr 27 01:34:52 2016 +0800 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(); //ok - expression statement lambda is compatible with void 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 +}