test/tools/javac/lambda/BadReturn.java

Tue, 12 Mar 2013 16:02:43 +0000

author
mcimadamore
date
Tue, 12 Mar 2013 16:02:43 +0000
changeset 1628
5ddecb91d843
parent 0
959103a6100f
permissions
-rw-r--r--

8009545: Graph inference: dependencies between inference variables should be set during incorporation
Summary: Move all transitivity checks into the incorporation round
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 }

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