test/tools/javac/lambda/8016177/T8016177a.java

Thu, 31 Aug 2017 15:17:03 +0800

author
aoqi
date
Thu, 31 Aug 2017 15:17:03 +0800
changeset 2525
2eb010b6cb22
parent 0
959103a6100f
permissions
-rw-r--r--

merge

aoqi@0 1 /*
aoqi@0 2 * @test /nodynamiccopyright/
aoqi@0 3 * @bug 8016177 8016178
aoqi@0 4 * @summary structural most specific and stuckness
aoqi@0 5 * @compile/fail/ref=T8016177a.out -XDrawDiagnostics T8016177a.java
aoqi@0 6 */
aoqi@0 7 import java.util.List;
aoqi@0 8
aoqi@0 9 class T8016177a {
aoqi@0 10
aoqi@0 11 interface ToIntFunction<X> {
aoqi@0 12 int m(X x);
aoqi@0 13 }
aoqi@0 14
aoqi@0 15 interface Function<X, Y> {
aoqi@0 16 Y m(X x);
aoqi@0 17 }
aoqi@0 18
aoqi@0 19 <T,R> void m1(List<T> s, Function<T,R> f) { }
aoqi@0 20 <T,R> void m1(List<T> s, ToIntFunction<T> f) { }
aoqi@0 21
aoqi@0 22 <T,R> List<R> m2(List<T> s, Function<T,R> f) { return null; }
aoqi@0 23 <T,R> List<R> m2(List<T> s, ToIntFunction<T> f) { return null; }
aoqi@0 24
aoqi@0 25 <T,R> List<T> m3(List<T> s, Function<T,R> f) { return null; }
aoqi@0 26 <T,R> List<R> m3(List<T> s, ToIntFunction<T> f) { return null; }
aoqi@0 27
aoqi@0 28 <T,R> List<T> m4(List<T> s, Function<T,R> f) { return null; }
aoqi@0 29 <T,R> List<T> m4(List<T> s, ToIntFunction<T> f) { return null; }
aoqi@0 30
aoqi@0 31 <T,R> List<R> m5(List<T> s, Function<T,R> f) { return null; }
aoqi@0 32 <T,R> List<T> m5(List<T> s, ToIntFunction<T> f) { return null; }
aoqi@0 33
aoqi@0 34 <T extends R,R> List<R> m6(List<T> s, Function<T,R> f) { return null; }
aoqi@0 35 <T extends R,R> List<T> m6(List<T> s, ToIntFunction<T> f) { return null; }
aoqi@0 36
aoqi@0 37 void test(List<String> ss) {
aoqi@0 38 m1(ss, s->s.length()); //ambiguous
aoqi@0 39 m2(ss, s->s.length()); //ambiguous
aoqi@0 40 m3(ss, s->s.length()); //ambiguous
aoqi@0 41 m4(ss, s->s.length()); //ambiguous
aoqi@0 42 m5(ss, s->s.length()); //ambiguous
aoqi@0 43 m6(ss, s->s.length()); //ambiguous
aoqi@0 44 }
aoqi@0 45 }

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