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
79
80
|
//// [constructSignatureAssignabilityInInheritance.ts]
// Checking basic subtype relations with construct signatures
module ConstructSignature {
interface Base { // T
// M's
new (x: number): void; // BUG 842221
new (x: number, y: number): number;
}
// S's
interface I extends Base {
// N's
new (x: number): number; // satisfies subtype for both of base's call signatures
new (x: number, y: number): boolean; // so this one hides the base type member that is identical modulo return types
}
interface Base2 { // T
// M's
new (x: number): number;
}
// S's
interface I2 extends Base2 {
// N's
new (x: number): string; // error because return types don't match
}
// S's
interface I3 extends Base2 {
// N's
new <T>(x: T): string; // ok, adds a new call signature
}
}
module MemberWithConstructSignature {
interface Base { // T
// M's
a: new (x: number) => void;
a2: new (x: number, y: number) => void;
a3: new <T>(x: T) => void;
}
var b: Base;
var r = new b.a(1);
// S's
interface I extends Base {
// N's
a: new (x: number) => number; // ok because base returns void
a2: new (x: number, y: number) => boolean; // ok because base returns void
a3: new <T>(x: T) => string; // ok because base returns void
}
interface Base2 { // T
// M's
a: new (x: number) => number;
a2: new <T>(x: T) => T;
}
// S's
interface I2 extends Base2 {
// N's
a: new (x: number) => string; // error because base returns non-void;
}
// S's
interface I3 extends Base2 {
// N's
a2: new <T>(x: T) => string; // error because base returns non-void;
}
}
//// [constructSignatureAssignabilityInInheritance.js]
// Checking basic subtype relations with construct signatures
var MemberWithConstructSignature;
(function (MemberWithConstructSignature) {
var b;
var r = new b.a(1);
})(MemberWithConstructSignature || (MemberWithConstructSignature = {}));
|
