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master
test/langtools/tools/javac/lambda/LambdaConv21.java
38 строк
1 KB
Erik Joelsson
8187443: Forest Consolidation: Move files to unified layout
12 сен 2017, 20:03
12 сен 2017, 20:03
3789983
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/* * @test /nodynamiccopyright/ * @bug 8003280 * @summary Add lambda tests * check that code generation handles void-compatibility correctly * @compile/fail/ref=LambdaConv21.out -XDrawDiagnostics LambdaConv21.java */ class LambdaConv21 { interface SAM_void<X> { void m(); } interface SAM_java_lang_Void { Void m(); } static void m_void() { } static Void m_java_lang_Void() { return null; } static void testExpressionLambda() { SAM_void s1 = ()->m_void(); //ok SAM_java_lang_Void s2 = ()->m_void(); //no - incompatible target SAM_void s3 = ()->m_java_lang_Void(); //ok - expression statement lambda is compatible with void SAM_java_lang_Void s4 = ()->m_java_lang_Void(); //ok } static void testStatementLambda() { SAM_void s1 = ()-> { m_void(); }; //ok SAM_java_lang_Void s2 = ()-> { m_void(); }; //no - missing return value SAM_void s3 = ()-> { return m_java_lang_Void(); }; //no - unexpected return value SAM_java_lang_Void s4 = ()-> { return m_java_lang_Void(); }; //ok SAM_void s5 = ()-> { m_java_lang_Void(); }; //ok SAM_java_lang_Void s6 = ()-> { m_java_lang_Void(); }; //no - missing return value } }