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
|
=== tests/cases/conformance/classes/propertyMemberDeclarations/constructorParameterShadowsOuterScopes2.ts ===
// With useDefineForClassFields: true and ESNext target, initializer
// expressions for property declarations are evaluated in the scope of
// the class body and are permitted to reference parameters or local
// variables of the constructor. This is different from classic
// Typescript behaviour, with useDefineForClassFields: false. There,
// initialisers of property declarations are evaluated in the scope of
// the constructor body.
// Note that when class fields are accepted in the ECMAScript
// standard, the target will become that year's ES20xx
var x = 1;
>x : number
>1 : 1
class C {
>C : C
b = x; // ok
>b : number
>x : number
constructor(x: string) {
>x : string
}
}
var y = 1;
>y : number
>1 : 1
class D {
>D : D
b = y; // ok
>b : number
>y : number
constructor(x: string) {
>x : string
var y = "";
>y : string
>"" : ""
}
}
class E {
>E : E
b = z; // not ok
>b : any
>z : any
constructor(z: string) {
>z : string
}
}
|
