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
69
70
71
72
73
74
75
76
77
|
//// [partiallyDiscriminantedUnions.ts]
// Repro from #10586
interface A1 {
type: 'a';
subtype: 1;
}
interface A2 {
type: 'a';
subtype: 2;
foo: number;
}
interface B {
type: 'b';
}
type AB = A1 | A2 | B;
const ab: AB = <AB>{};
if (ab.type === 'a') {
if (ab.subtype === 2) {
ab.foo;
}
}
// Repro from #11185
class Square { kind: "square"; }
class Circle { kind: "circle"; }
type Shape = Circle | Square;
type Shapes = Shape | Array<Shape>;
function isShape(s : Shapes): s is Shape {
return !Array.isArray(s);
}
function fail(s: Shapes) {
if (isShape(s)) {
if (s.kind === "circle") {
let c: Circle = s;
}
}
}
//// [partiallyDiscriminantedUnions.js]
// Repro from #10586
var ab = {};
if (ab.type === 'a') {
if (ab.subtype === 2) {
ab.foo;
}
}
// Repro from #11185
var Square = /** @class */ (function () {
function Square() {
}
return Square;
}());
var Circle = /** @class */ (function () {
function Circle() {
}
return Circle;
}());
function isShape(s) {
return !Array.isArray(s);
}
function fail(s) {
if (isShape(s)) {
if (s.kind === "circle") {
var c = s;
}
}
}
|
