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
|
tests/cases/conformance/es6/destructuring/destructuringControlFlow.ts(31,8): error TS2339: Property 'x' does not exist on type 'Number'.
tests/cases/conformance/es6/destructuring/destructuringControlFlow.ts(32,9): error TS2339: Property 'x' does not exist on type 'Number'.
tests/cases/conformance/es6/destructuring/destructuringControlFlow.ts(33,9): error TS2537: Type 'Number' has no matching index signature for type 'string'.
==== tests/cases/conformance/es6/destructuring/destructuringControlFlow.ts (3 errors) ====
function f1(obj: { a?: string }) {
if (obj.a) {
obj = {};
let a1 = obj["a"]; // string | undefined
let a2 = obj.a; // string | undefined
}
}
function f2(obj: [number, string] | null[]) {
let a0 = obj[0]; // number | null
let a1 = obj[1]; // string | null
let [b0, b1] = obj;
([a0, a1] = obj);
if (obj[0] && obj[1]) {
let c0 = obj[0]; // number
let c1 = obj[1]; // string
let [d0, d1] = obj;
([c0, c1] = obj);
}
}
function f3(obj: { a?: number, b?: string }) {
if (obj.a && obj.b) {
let { a, b } = obj; // number, string
({ a, b } = obj);
}
}
function f4() {
let x: boolean;
({ x } = 0); // Error
~
!!! error TS2339: Property 'x' does not exist on type 'Number'.
({ ["x"]: x } = 0); // Error
~~~
!!! error TS2339: Property 'x' does not exist on type 'Number'.
({ ["x" + ""]: x } = 0); // Errpr
~~~~~~~~
!!! error TS2537: Type 'Number' has no matching index signature for type 'string'.
}
|
