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
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
|
=== tests/cases/conformance/types/typeRelationships/typeInference/genericCallWithOverloadedFunctionTypedArguments2.ts ===
// Function typed arguments with multiple signatures must be passed an implementation that matches all of them
// Inferences are made quadratic-pairwise to and from these overload sets
module NonGenericParameter {
>NonGenericParameter : typeof NonGenericParameter
var a: {
>a : { (x: boolean): boolean; (x: string): string; }
(x: boolean): boolean;
>x : boolean
(x: string): string;
>x : string
}
function foo4(cb: typeof a) {
>foo4 : (cb: { (x: boolean): boolean; (x: string): string; }) => { (x: boolean): boolean; (x: string): string; }
>cb : { (x: boolean): boolean; (x: string): string; }
>a : { (x: boolean): boolean; (x: string): string; }
return cb;
>cb : { (x: boolean): boolean; (x: string): string; }
}
var r3 = foo4(<T, U>(x: T) => { var r: U; return r }); // ok
>r3 : { (x: boolean): boolean; (x: string): string; }
>foo4(<T, U>(x: T) => { var r: U; return r }) : { (x: boolean): boolean; (x: string): string; }
>foo4 : (cb: { (x: boolean): boolean; (x: string): string; }) => { (x: boolean): boolean; (x: string): string; }
><T, U>(x: T) => { var r: U; return r } : <T, U>(x: T) => U
>x : T
>r : U
>r : U
}
module GenericParameter {
>GenericParameter : typeof GenericParameter
function foo5<T>(cb: { (x: T): string; (x: number): T }) {
>foo5 : <T>(cb: { (x: T): string; (x: number): T; }) => { (x: T): string; (x: number): T; }
>cb : { (x: T): string; (x: number): T; }
>x : T
>x : number
return cb;
>cb : { (x: T): string; (x: number): T; }
}
var r6 = foo5(<T>(x: T) => x); // ok
>r6 : { (x: {}): string; (x: number): {}; }
>foo5(<T>(x: T) => x) : { (x: {}): string; (x: number): {}; }
>foo5 : <T>(cb: { (x: T): string; (x: number): T; }) => { (x: T): string; (x: number): T; }
><T>(x: T) => x : <T>(x: T) => T
>x : T
>x : T
function foo6<T>(cb: { (x: T): string; (x: T, y?: T): string }) {
>foo6 : <T>(cb: { (x: T): string; (x: T, y?: T): string; }) => { (x: T): string; (x: T, y?: T): string; }
>cb : { (x: T): string; (x: T, y?: T): string; }
>x : T
>x : T
>y : T
return cb;
>cb : { (x: T): string; (x: T, y?: T): string; }
}
var r10 = foo6(<T>(x: T, y: T) => ''); // error
>r10 : any
>foo6(<T>(x: T, y: T) => '') : any
>foo6 : <T>(cb: { (x: T): string; (x: T, y?: T): string; }) => { (x: T): string; (x: T, y?: T): string; }
><T>(x: T, y: T) => '' : <T>(x: T, y: T) => string
>x : T
>y : T
>'' : ""
function foo7<T>(x:T, cb: { (x: T): string; (x: T, y?: T): string }) {
>foo7 : <T>(x: T, cb: { (x: T): string; (x: T, y?: T): string; }) => { (x: T): string; (x: T, y?: T): string; }
>x : T
>cb : { (x: T): string; (x: T, y?: T): string; }
>x : T
>x : T
>y : T
return cb;
>cb : { (x: T): string; (x: T, y?: T): string; }
}
var r13 = foo7(1, <T>(x: T) => x); // ok
>r13 : { (x: {}): string; (x: {}, y?: {}): string; }
>foo7(1, <T>(x: T) => x) : { (x: {}): string; (x: {}, y?: {}): string; }
>foo7 : <T>(x: T, cb: { (x: T): string; (x: T, y?: T): string; }) => { (x: T): string; (x: T, y?: T): string; }
>1 : 1
><T>(x: T) => x : <T>(x: T) => T
>x : T
>x : T
var a: { <T>(x: T): number; <T>(x: number): T; }
>a : { <T>(x: T): number; <T>(x: number): T; }
>x : T
>x : number
var r14 = foo7(1, a); // ok
>r14 : { (x: {}): string; (x: {}, y?: {}): string; }
>foo7(1, a) : { (x: {}): string; (x: {}, y?: {}): string; }
>foo7 : <T>(x: T, cb: { (x: T): string; (x: T, y?: T): string; }) => { (x: T): string; (x: T, y?: T): string; }
>1 : 1
>a : { <T>(x: T): number; <T>(x: number): T; }
}
|
