Mercurial > jdk8-mips64-public > langtools / file diff

     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/test/tools/javac/lambda/TargetType14.java	Wed Apr 27 01:34:52 2016 +0800
     1.3 @@ -0,0 +1,25 @@
     1.4 +/*
     1.5 + * @test /nodynamiccopyright/
     1.6 + * @bug 8003280
     1.7 + * @summary Add lambda tests
     1.8 + *  check that return type is inferred from target type when cyclic inference found
     1.9 + * @author  Maurizio Cimadamore
    1.10 + * @compile/fail/ref=TargetType14.out -XDrawDiagnostics TargetType14.java
    1.11 + */
    1.12 +
    1.13 +class TargetType14 {
    1.14 +
    1.15 +    interface SAM<X> {
    1.16 +        X m(int i, int j);
    1.17 +    }
    1.18 +
    1.19 +    static void test() {
    1.20 +        SAM<Integer> s1 = (i, j) -> i + j;
    1.21 +        m((i, j) -> i + j);
    1.22 +        SAM<Integer> s2 = m2((i, j) -> i + j); //ok
    1.23 +        SAM<Integer> s3 = m2((i, j) -> "" + i + j); //no
    1.24 +    }
    1.25 +
    1.26 +    static void m(SAM<Integer> s) { }
    1.27 +    static <X> SAM<X> m2(SAM<X> s) { return null; }
    1.28 +}