8008540: Constructor reference to non-reifiable array should be rejected
8008539: Spurious error when constructor reference mention an interface type
8008538: Constructor reference accepts wildcard parameterized types
Summary: Overhaul of Check.checkConstructorRefType
Reviewed-by: jjg
/*
* @test /nodynamiccopyright/
* @bug 8008540 8008539 8008538
* @summary Constructor reference to non-reifiable array should be rejected
* @compile/fail/ref=MethodReference64.out -XDrawDiagnostics MethodReference64.java
*/
class MethodReference64 {
interface ClassFactory {
Object m();
}
interface ArrayFactory {
Object m(int i);
}
@interface Anno { }
enum E { }
interface I { }
static class Foo<X> { }
void m(ClassFactory cf) { }
void m(ArrayFactory cf) { }
void testAssign() {
ClassFactory c1 = Anno::new; //error
ClassFactory c2 = E::new; //error
ClassFactory c3 = I::new; //error
ClassFactory c4 = Foo<?>::new; //error
ClassFactory c5 = 1::new; //error
ArrayFactory a1 = Foo<?>[]::new; //ok
ArrayFactory a2 = Foo<? extends String>[]::new; //error
}
void testMethod() {
m(Anno::new); //error
m(E::new); //error
m(I::new); //error
m(Foo<?>::new); //error
m(1::new); //error
m(Foo<?>[]::new); //ok - resolves to m(ArrayFactory)
m(Foo<? extends String>[]::new); //error
}
}