2014-07-13 01:04:16 +02:00
|
|
|
==== tests/cases/compiler/genericTypeAssertions4.ts (5 errors) ====
|
|
|
|
class A {
|
|
|
|
foo() { return ""; }
|
|
|
|
}
|
|
|
|
|
|
|
|
class B extends A {
|
|
|
|
bar() { return 1; }
|
|
|
|
}
|
|
|
|
|
|
|
|
class C extends A {
|
|
|
|
baz() { return 1; }
|
|
|
|
}
|
|
|
|
|
|
|
|
var a: A;
|
|
|
|
var b: B;
|
|
|
|
var c: C;
|
|
|
|
|
|
|
|
function foo2<T extends A>(x: T) {
|
|
|
|
var y = x;
|
|
|
|
y = a; // error: cannot convert A to T
|
|
|
|
~
|
|
|
|
!!! Type 'A' is not assignable to type 'T'.
|
|
|
|
y = b; // error: cannot convert B to T
|
|
|
|
~
|
|
|
|
!!! Type 'B' is not assignable to type 'T'.
|
|
|
|
y = c; // error: cannot convert C to T
|
|
|
|
~
|
|
|
|
!!! Type 'C' is not assignable to type 'T'.
|
|
|
|
y = <T>a;
|
|
|
|
y = <T>b; // error: cannot convert B to T
|
|
|
|
~~~~
|
2014-09-06 02:09:00 +02:00
|
|
|
!!! Neither type 'B' nor type 'T' is assignable to the other.
|
2014-07-13 01:04:16 +02:00
|
|
|
y = <T>c; // error: cannot convert C to T
|
|
|
|
~~~~
|
2014-09-06 02:09:00 +02:00
|
|
|
!!! Neither type 'C' nor type 'T' is assignable to the other.
|
2014-07-13 01:04:16 +02:00
|
|
|
}
|