43 lines
1.3 KiB
Text
43 lines
1.3 KiB
Text
=== tests/cases/compiler/covariance1.ts ===
|
|
module M {
|
|
>M : Symbol(M, Decl(covariance1.ts, 0, 0))
|
|
|
|
interface X { m1:number; }
|
|
>X : Symbol(X, Decl(covariance1.ts, 0, 10))
|
|
>m1 : Symbol(X.m1, Decl(covariance1.ts, 2, 17))
|
|
|
|
export class XX implements X { constructor(public m1:number) { } }
|
|
>XX : Symbol(XX, Decl(covariance1.ts, 2, 30))
|
|
>X : Symbol(X, Decl(covariance1.ts, 0, 10))
|
|
>m1 : Symbol(XX.m1, Decl(covariance1.ts, 3, 47))
|
|
|
|
interface Y { x:X; }
|
|
>Y : Symbol(Y, Decl(covariance1.ts, 3, 70))
|
|
>x : Symbol(Y.x, Decl(covariance1.ts, 5, 17))
|
|
>X : Symbol(X, Decl(covariance1.ts, 0, 10))
|
|
|
|
export function f(y:Y) { }
|
|
>f : Symbol(f, Decl(covariance1.ts, 5, 24))
|
|
>y : Symbol(y, Decl(covariance1.ts, 7, 22))
|
|
>Y : Symbol(Y, Decl(covariance1.ts, 3, 70))
|
|
|
|
var a:X;
|
|
>a : Symbol(a, Decl(covariance1.ts, 9, 7))
|
|
>X : Symbol(X, Decl(covariance1.ts, 0, 10))
|
|
|
|
f({x:a}); // ok
|
|
>f : Symbol(f, Decl(covariance1.ts, 5, 24))
|
|
>x : Symbol(x, Decl(covariance1.ts, 10, 7))
|
|
>a : Symbol(a, Decl(covariance1.ts, 9, 7))
|
|
|
|
var b:XX;
|
|
>b : Symbol(b, Decl(covariance1.ts, 12, 7))
|
|
>XX : Symbol(XX, Decl(covariance1.ts, 2, 30))
|
|
|
|
f({x:b}); // ok covariant subtype
|
|
>f : Symbol(f, Decl(covariance1.ts, 5, 24))
|
|
>x : Symbol(x, Decl(covariance1.ts, 13, 7))
|
|
>b : Symbol(b, Decl(covariance1.ts, 12, 7))
|
|
}
|
|
|
|
|