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
78
|
=== tests/cases/conformance/expressions/thisKeyword/thisInInvalidContexts.ts ===
class BaseErrClass {
>BaseErrClass : Symbol(BaseErrClass, Decl(thisInInvalidContexts.ts, 0, 0))
constructor(t: any) { }
>t : Symbol(t, Decl(thisInInvalidContexts.ts, 1, 16))
}
class ClassWithNoInitializer extends BaseErrClass {
>ClassWithNoInitializer : Symbol(ClassWithNoInitializer, Decl(thisInInvalidContexts.ts, 2, 1))
>BaseErrClass : Symbol(BaseErrClass, Decl(thisInInvalidContexts.ts, 0, 0))
t;
>t : Symbol(ClassWithNoInitializer.t, Decl(thisInInvalidContexts.ts, 4, 51))
//'this' in optional super call
constructor() {
super(this); // Error
>super : Symbol(BaseErrClass, Decl(thisInInvalidContexts.ts, 0, 0))
>this : Symbol(ClassWithNoInitializer, Decl(thisInInvalidContexts.ts, 2, 1))
}
}
class ClassWithInitializer extends BaseErrClass {
>ClassWithInitializer : Symbol(ClassWithInitializer, Decl(thisInInvalidContexts.ts, 10, 1))
>BaseErrClass : Symbol(BaseErrClass, Decl(thisInInvalidContexts.ts, 0, 0))
t = 4;
>t : Symbol(ClassWithInitializer.t, Decl(thisInInvalidContexts.ts, 12, 49))
//'this' in required super call
constructor() {
super(this); // Error
>super : Symbol(BaseErrClass, Decl(thisInInvalidContexts.ts, 0, 0))
>this : Symbol(ClassWithInitializer, Decl(thisInInvalidContexts.ts, 10, 1))
}
}
module M {
>M : Symbol(M, Decl(thisInInvalidContexts.ts, 18, 1))
//'this' in module variable
var x = this; // Error
>x : Symbol(x, Decl(thisInInvalidContexts.ts, 22, 7))
}
//'this' as type parameter constraint
// function fn<T extends this >() { } // Error
//'this' as a type argument
function genericFunc<T>(x: T) { }
>genericFunc : Symbol(genericFunc, Decl(thisInInvalidContexts.ts, 23, 1))
>T : Symbol(T, Decl(thisInInvalidContexts.ts, 29, 21))
>x : Symbol(x, Decl(thisInInvalidContexts.ts, 29, 24))
>T : Symbol(T, Decl(thisInInvalidContexts.ts, 29, 21))
genericFunc<this>(undefined); // Should be an error
>genericFunc : Symbol(genericFunc, Decl(thisInInvalidContexts.ts, 23, 1))
>undefined : Symbol(undefined)
class ErrClass3 extends this {
>ErrClass3 : Symbol(ErrClass3, Decl(thisInInvalidContexts.ts, 30, 29))
>this : Symbol(globalThis)
}
//'this' as a computed enum value
enum SomeEnum {
>SomeEnum : Symbol(SomeEnum, Decl(thisInInvalidContexts.ts, 34, 1))
A = this, // Should not be allowed
>A : Symbol(SomeEnum.A, Decl(thisInInvalidContexts.ts, 37, 15))
B = this.spaaaace // Also should not be allowed
>B : Symbol(SomeEnum.B, Decl(thisInInvalidContexts.ts, 38, 13))
}
|
