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
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
|
=== tests/cases/conformance/types/typeRelationships/typeInference/genericCallWithOverloadedFunctionTypedArguments.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 r = foo4(a);
>r : { (x: boolean): boolean; (x: string): string; }
>foo4(a) : { (x: boolean): boolean; (x: string): string; }
>foo4 : (cb: { (x: boolean): boolean; (x: string): string; }) => { (x: boolean): boolean; (x: string): string; }
>a : { (x: boolean): boolean; (x: string): string; }
var r2 = foo4(<T>(x: T) => x);
>r2 : { (x: boolean): boolean; (x: string): string; }
>foo4(<T>(x: T) => x) : { (x: boolean): boolean; (x: string): string; }
>foo4 : (cb: { (x: boolean): boolean; (x: string): string; }) => { (x: boolean): boolean; (x: string): string; }
><T>(x: T) => x : <T>(x: T) => T
>T : T
>x : T
>T : T
>x : T
var r4 = foo4(x => x);
>r4 : { (x: boolean): boolean; (x: string): string; }
>foo4(x => x) : { (x: boolean): boolean; (x: string): string; }
>foo4 : (cb: { (x: boolean): boolean; (x: string): string; }) => { (x: boolean): boolean; (x: string): string; }
>x => x : (x: any) => any
>x : any
>x : any
}
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; }
>T : T
>cb : { (x: T): string; (x: number): T; }
>x : T
>T : T
>x : number
>T : T
return cb;
>cb : { (x: T): string; (x: number): T; }
}
var r5 = foo5(x => x); // any => string (+1 overload) [inferences are made for T, but lambda not contextually typed]. T is any
>r5 : { (x: any): string; (x: number): any; }
>foo5(x => x) : { (x: any): string; (x: number): any; }
>foo5 : <T>(cb: { (x: T): string; (x: number): T; }) => { (x: T): string; (x: number): T; }
>x => x : (x: any) => any
>x : any
>x : any
var a: { <T>(x: T): string; <T>(x: number): T; }
>a : { <T>(x: T): string; <T>(x: number): T; }
>T : T
>x : T
>T : T
>T : T
>x : number
>T : T
var r7 = foo5(a); // any => string (+1 overload)
>r7 : { (x: any): string; (x: number): any; }
>foo5(a) : { (x: any): string; (x: number): any; }
>foo5 : <T>(cb: { (x: T): string; (x: number): T; }) => { (x: T): string; (x: number): T; }
>a : { <T>(x: T): string; <T>(x: number): 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; }
>T : T
>cb : { (x: T): string; (x: T, y?: T): string; }
>x : T
>T : T
>x : T
>T : T
>y : T
>T : T
return cb;
>cb : { (x: T): string; (x: T, y?: T): string; }
}
var r8 = foo6(x => x); // any => string (+1 overload) [inferences are made for T, but lambda not contextually typed]. T is any
>r8 : { (x: any): string; (x: any, y?: any): string; }
>foo6(x => x) : { (x: any): string; (x: any, y?: any): string; }
>foo6 : <T>(cb: { (x: T): string; (x: T, y?: T): string; }) => { (x: T): string; (x: T, y?: T): string; }
>x => x : (x: any) => any
>x : any
>x : any
var r9 = foo6(<T>(x: T) => ''); // any => string (+1 overload)
>r9 : { (x: any): string; (x: any, y?: any): string; }
>foo6(<T>(x: T) => '') : { (x: any): string; (x: any, y?: any): string; }
>foo6 : <T>(cb: { (x: T): string; (x: T, y?: T): string; }) => { (x: T): string; (x: T, y?: T): string; }
><T>(x: T) => '' : <T>(x: T) => string
>T : T
>x : T
>T : T
>'' : ""
var r11 = foo6(<T>(x: T, y?: T) => ''); // any => string (+1 overload)
>r11 : { (x: any): string; (x: any, y?: any): string; }
>foo6(<T>(x: T, y?: T) => '') : { (x: any): string; (x: any, y?: any): string; }
>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
>T : T
>x : T
>T : T
>y : T
>T : 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; }
>T : T
>x : T
>T : T
>cb : { (x: T): string; (x: T, y?: T): string; }
>x : T
>T : T
>x : T
>T : T
>y : T
>T : T
return cb;
>cb : { (x: T): string; (x: T, y?: T): string; }
}
var r12 = foo7(1, (x) => x); // any => string (+1 overload) [inferences are made for T, but lambda not contextually typed]
>r12 : { (x: any): string; (x: any, y?: any): string; }
>foo7(1, (x) => x) : { (x: any): string; (x: any, y?: any): string; }
>foo7 : <T>(x: T, cb: { (x: T): string; (x: T, y?: T): string; }) => { (x: T): string; (x: T, y?: T): string; }
>1 : 1
>(x) => x : (x: any) => any
>x : any
>x : any
var r13 = foo7(1, <T>(x: T) => ''); // any => string (+1 overload) [inferences are made for T, but lambda not contextually typed]
>r13 : { (x: any): string; (x: any, y?: any): string; }
>foo7(1, <T>(x: T) => '') : { (x: any): string; (x: any, y?: any): 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) => '' : <T>(x: T) => string
>T : T
>x : T
>T : T
>'' : ""
var a: { <T>(x: T): string; <T>(x: number): T; }
>a : { <T>(x: T): string; <T>(x: number): T; }
>T : T
>x : T
>T : T
>T : T
>x : number
>T : T
var r14 = foo7(1, a); // any => string (+1 overload) [inferences are made for T, but lambda not contextually typed]
>r14 : { (x: any): string; (x: any, y?: any): string; }
>foo7(1, a) : { (x: any): string; (x: any, y?: any): 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): string; <T>(x: number): T; }
}
|
