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test/tools/javac/lambda/BadReturn.java@c6728c9addff (annotated)

test/tools/javac/lambda/BadReturn.java

Fri, 22 Mar 2013 12:43:09 +0000

author

mcimadamore

date

Fri, 22 Mar 2013 12:43:09 +0000

changeset 1655

c6728c9addff

parent 0

959103a6100f

permissions

-rw-r--r--

8010303: Graph inference: missing incorporation step causes spurious inference error
Summary: Multiple equality constraints on inference vars are not used to generate new inference constraints
Reviewed-by: jjg

aoqi@0	1	/*
aoqi@0	2	* @test /nodynamiccopyright/
aoqi@0	3	* @bug 8003280
aoqi@0	4	* @summary Add lambda tests
aoqi@0	5	* check that incompatible return types in lambdas are flagged with error
aoqi@0	6	* @author Maurizio Cimadamore
aoqi@0	7	* @compile/fail/ref=BadReturn.out -XDrawDiagnostics BadReturn.java
aoqi@0	8	*/
aoqi@0	9
aoqi@0	10	class BadReturn {
aoqi@0	11
aoqi@0	12	interface SAM {
aoqi@0	13	Comparable<?> m();
aoqi@0	14	}
aoqi@0	15
aoqi@0	16	static void testNeg1() {
aoqi@0	17	SAM s = ()-> {
aoqi@0	18	if (true) {
aoqi@0	19	return "";
aoqi@0	20	} else {
aoqi@0	21	return System.out.println("");
aoqi@0	22	}};
aoqi@0	23	}
aoqi@0	24
aoqi@0	25	static void testNeg2() {
aoqi@0	26	SAM s = ()-> { return System.out.println(""); };
aoqi@0	27	}
aoqi@0	28
aoqi@0	29	static void testPos() {
aoqi@0	30	SAM s = ()-> {
aoqi@0	31	if (false) {
aoqi@0	32	return 10;
aoqi@0	33	}
aoqi@0	34	else {
aoqi@0	35	return true;
aoqi@0	36	}};
aoqi@0	37	}
aoqi@0	38	}