jdk8-mips64-public/langtools: test/tools/javac/lambda/LambdaConv09.java@db91d860156a

8005179: Cleanup Resolve.AmbiguityError
Summary: Linearize nested ambiguity errors
Reviewed-by: jjg

     1 /*

     2  * @test /nodynamiccopyright/

     3  * @bug 8003280

     4  * @summary Add lambda tests

     5  *  check that SAM conversion handles Object members correctly

     6  * @author  Alex Buckley

     7  * @author  Maurizio Cimadamore

     8  * @compile/fail/ref=LambdaConv09.out -XDrawDiagnostics LambdaConv09.java

     9  */

    11 class LambdaConv09 {

    13     // Not a SAM type; not enough abstract methods

    14     interface Foo1 {}

    16     // SAM type; Foo has no abstract methods

    17     interface Foo2 { boolean equals(Object object); }

    20     // Not a SAM type; Foo still has no abstract methods

    21     interface Foo3 extends Foo2 { public abstract String toString(); }

    23     // SAM type; Bar has one abstract non-Object method

    24     interface Foo4<T> extends Foo2 { int compare(T o1, T o2); }

    26     // Not a SAM type; still no valid abstract methods

    27     interface Foo5 {

    28         boolean equals(Object object);

    29         String toString();

    30     }

    32     // SAM type; Foo6 has one abstract non-Object method

    33     interface Foo6<T> {

    34         boolean equals(Object obj);

    35         int compare(T o1, T o2);

    36     }

    38     // SAM type; Foo6 has one abstract non-Object method

    39     interface Foo7<T> extends Foo2, Foo6<T> { }

    41     void test() {

    42         Foo1 f1 = ()-> { };

    43         Foo2 f2 = ()-> { };

    44         Foo3 f3 = x -> true;

    45         Foo4 f4 = (x, y) -> 1;

    46         Foo5 f5 = x -> true;

    47         Foo6 f6 = (x, y) -> 1;

    48         Foo7 f7 = (x, y) -> 1;

    49     }

    50 }

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