Mercurial > jdk8-mips64-public > langtools / file comparison
comparison: test/tools/javac/lambda/MostSpecific14.java
test/tools/javac/lambda/MostSpecific14.java
- changeset 0
- 959103a6100f
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| -1:000000000000 | 0:959103a6100f |
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| 1 /* | |
| 2 * @test /nodynamiccopyright/ | |
| 3 * @bug 8034223 | |
| 4 * @summary Most-specific testing for nested functional interface types | |
| 5 * @compile/fail/ref=MostSpecific14.out -XDrawDiagnostics MostSpecific14.java | |
| 6 */ | |
| 7 class MostSpecific14 { | |
| 8 interface ToNumber { Number get(); } | |
| 9 interface ToToNumber { ToNumber get(); } | |
| 10 interface Factory<T> { T get(); } | |
| 11 | |
| 12 void m1(Factory<Factory<Object>> f) {} | |
| 13 void m1(ToToNumber f) {} | |
| 14 | |
| 15 void m2(Factory<Factory<Number>> f) {} | |
| 16 void m2(ToToNumber f) {} | |
| 17 | |
| 18 void m3(Factory<Factory<Integer>> f) {} | |
| 19 void m3(ToToNumber f) {} | |
| 20 | |
| 21 | |
| 22 void test() { | |
| 23 m1(() -> () -> 23); // ok: choose ToToNumber | |
| 24 m2(() -> () -> 23); // error: ambiguous | |
| 25 m3(() -> () -> 23); // ok: choose Factory<Factory<Integer>> | |
| 26 | |
| 27 m1(() -> this::getInteger); // ok: choose ToToNumber | |
| 28 m2(() -> this::getInteger); // error: ambiguous | |
| 29 m3(() -> this::getInteger); // ok: choose Factory<Factory<Integer>> | |
| 30 } | |
| 31 | |
| 32 Integer getInteger() { return 23; } | |
| 33 } |
