File: typeGuardFunctionGenerics.js

package info (click to toggle)
node-typescript 2.1.5-1
  • links: PTS, VCS
  • area: main
  • in suites: stretch
  • size: 203,952 kB
  • ctags: 52,987
  • sloc: sh: 11; makefile: 5
file content (68 lines) | stat: -rw-r--r-- 1,482 bytes parent folder | download | duplicates (2)
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
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
//// [typeGuardFunctionGenerics.ts]

class A {
    propA: number;
}

class B {
    propB: number;
}

class C extends A {
    propC: number;
}

declare function isB(p1): p1 is B;
declare function isC(p1): p1 is C;
declare function retC(x): C; 

declare function funA<T>(p1: (p1) => T): T;
declare function funB<T>(p1: (p1) => T, p2: any): p2 is T;
declare function funC<T>(p1: (p1) => p1 is T): T;
declare function funD<T>(p1: (p1) => p1 is T, p2: any): p2 is T;
declare function funE<T, U>(p1: (p1) => p1 is T, p2: U): T;

let a: A;
let test1: boolean = funA(isB);
if (funB(retC, a)) {
    a.propC;
}
let test2: B = funC(isB);
if (funD(isC, a)) {
    a.propC;
}
let test3: B = funE(isB, 1);

//// [typeGuardFunctionGenerics.js]
var __extends = (this && this.__extends) || function (d, b) {
    for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
    function __() { this.constructor = d; }
    d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
};
var A = (function () {
    function A() {
    }
    return A;
}());
var B = (function () {
    function B() {
    }
    return B;
}());
var C = (function (_super) {
    __extends(C, _super);
    function C() {
        return _super !== null && _super.apply(this, arguments) || this;
    }
    return C;
}(A));
var a;
var test1 = funA(isB);
if (funB(retC, a)) {
    a.propC;
}
var test2 = funC(isB);
if (funD(isC, a)) {
    a.propC;
}
var test3 = funE(isB, 1);