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test/tools/javac/lambda/LambdaConv21.java@e64bb2f5f0cf (annotated)

test/tools/javac/lambda/LambdaConv21.java

Fri, 30 May 2014 12:54:16 +0200

author

jlahoda

date

Fri, 30 May 2014 12:54:16 +0200

changeset 2410

e64bb2f5f0cf

parent 1433

4f9853659bf1

child 2525

2eb010b6cb22

permissions

-rw-r--r--

8031967: For some sources compiler compiles for ever
Summary: Avoid creating DeferredTypes for method calls with method calls as receivers if the site can be determined reliably
Reviewed-by: mcimadamore, vromero
Contributed-by: maurizio.cimadamore@oracle.com, jan.lahoda@oracle.com

mcimadamore@1415	1	/*
mcimadamore@1415	2	* @test /nodynamiccopyright/
mcimadamore@1415	3	* @bug 8003280
mcimadamore@1415	4	* @summary Add lambda tests
mcimadamore@1415	5	* check that code generation handles void-compatibility correctly
mcimadamore@1415	6	* @compile/fail/ref=LambdaConv21.out -XDrawDiagnostics LambdaConv21.java
mcimadamore@1415	7	*/
mcimadamore@1415	8
mcimadamore@1415	9	class LambdaConv21 {
mcimadamore@1415	10
mcimadamore@1415	11	interface SAM_void<X> {
mcimadamore@1415	12	void m();
mcimadamore@1415	13	}
mcimadamore@1415	14
mcimadamore@1415	15	interface SAM_java_lang_Void {
mcimadamore@1415	16	Void m();
mcimadamore@1415	17	}
mcimadamore@1415	18
mcimadamore@1415	19	static void m_void() { }
mcimadamore@1415	20
mcimadamore@1415	21	static Void m_java_lang_Void() { return null; }
mcimadamore@1415	22
mcimadamore@1415	23	static void testExpressionLambda() {
mcimadamore@1415	24	SAM_void s1 = ()->m_void(); //ok
mcimadamore@1415	25	SAM_java_lang_Void s2 = ()->m_void(); //no - incompatible target
mcimadamore@1433	26	SAM_void s3 = ()->m_java_lang_Void(); //ok - expression statement lambda is compatible with void
mcimadamore@1415	27	SAM_java_lang_Void s4 = ()->m_java_lang_Void(); //ok
mcimadamore@1415	28	}
mcimadamore@1415	29
mcimadamore@1415	30	static void testStatementLambda() {
mcimadamore@1415	31	SAM_void s1 = ()-> { m_void(); }; //ok
mcimadamore@1415	32	SAM_java_lang_Void s2 = ()-> { m_void(); }; //no - missing return value
mcimadamore@1415	33	SAM_void s3 = ()-> { return m_java_lang_Void(); }; //no - unexpected return value
mcimadamore@1415	34	SAM_java_lang_Void s4 = ()-> { return m_java_lang_Void(); }; //ok
mcimadamore@1415	35	SAM_void s5 = ()-> { m_java_lang_Void(); }; //ok
mcimadamore@1415	36	SAM_java_lang_Void s6 = ()-> { m_java_lang_Void(); }; //no - missing return value
mcimadamore@1415	37	}
mcimadamore@1415	38	}