File: genericTypeAssertions5.js

package info (click to toggle)
node-typescript 3.3.3333-1
  • links: PTS, VCS
  • area: main
  • in suites: buster
  • size: 324,548 kB
  • sloc: makefile: 6; sh: 3
file content (40 lines) | stat: -rw-r--r-- 812 bytes parent folder | download | duplicates (7)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
//// [genericTypeAssertions5.ts]
interface A {
    foo(): string;
}

interface B extends A {
    bar(): number;
}

interface C extends A {
    baz(): number;
}

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
    y = b; // error: cannot convert B to T
    y = c; // error: cannot convert C to T
    y = <T>a;
    y = <T>b; // error: cannot convert B to T
    y = <T>c; // error: cannot convert C to T
}

//// [genericTypeAssertions5.js]
var a;
var b;
var c;
function foo2(x) {
    var y = x;
    y = a; // error: cannot convert A to T
    y = b; // error: cannot convert B to T
    y = c; // error: cannot convert C to T
    y = a;
    y = b; // error: cannot convert B to T
    y = c; // error: cannot convert C to T
}