File: contextuallyTypedParametersWithInitializers.types

package info (click to toggle)
node-typescript 5.0.4%2Bds1-1
  • links: PTS, VCS
  • area: main
  • in suites: experimental
  • size: 459,116 kB
  • sloc: javascript: 1,972,754; makefile: 6; sh: 1
file content (377 lines) | stat: -rw-r--r-- 10,515 bytes parent folder | download | duplicates (3)
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
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
=== tests/cases/compiler/contextuallyTypedParametersWithInitializers.ts ===
declare function id1<T>(input: T): T;
>id1 : <T>(input: T) => T
>input : T

declare function id2<T extends (x: any) => any>(input: T): T;
>id2 : <T extends (x: any) => any>(input: T) => T
>x : any
>input : T

declare function id3<T extends (x: { foo: any }) => any>(input: T): T;
>id3 : <T extends (x: {    foo: any;}) => any>(input: T) => T
>x : { foo: any; }
>foo : any
>input : T

declare function id4<T extends (x: { foo?: number }) => any>(input: T): T;
>id4 : <T extends (x: {    foo?: number;}) => any>(input: T) => T
>x : { foo?: number | undefined; }
>foo : number | undefined
>input : T

declare function id5<T extends (x?: number) => any>(input: T): T;
>id5 : <T extends (x?: number) => any>(input: T) => T
>x : number | undefined
>input : T

const f10 = function ({ foo = 42 }) { return foo };
>f10 : ({ foo }: { foo?: number | undefined; }) => number
>function ({ foo = 42 }) { return foo } : ({ foo }: { foo?: number | undefined; }) => number
>foo : number
>42 : 42
>foo : number

const f11 = id1(function ({ foo = 42 }) { return foo });
>f11 : ({ foo }: { foo?: number | undefined; }) => number
>id1(function ({ foo = 42 }) { return foo }) : ({ foo }: { foo?: number | undefined; }) => number
>id1 : <T>(input: T) => T
>function ({ foo = 42 }) { return foo } : ({ foo }: { foo?: number | undefined; }) => number
>foo : number
>42 : 42
>foo : number

const f12 = id2(function ({ foo = 42 }) { return foo });
>f12 : ({ foo }: any) => any
>id2(function ({ foo = 42 }) { return foo }) : ({ foo }: any) => any
>id2 : <T extends (x: any) => any>(input: T) => T
>function ({ foo = 42 }) { return foo } : ({ foo }: any) => any
>foo : any
>42 : 42
>foo : any

const f13 = id3(function ({ foo = 42 }) { return foo });
>f13 : ({ foo }: { foo: any; }) => any
>id3(function ({ foo = 42 }) { return foo }) : ({ foo }: { foo: any; }) => any
>id3 : <T extends (x: { foo: any; }) => any>(input: T) => T
>function ({ foo = 42 }) { return foo } : ({ foo }: { foo: any; }) => any
>foo : any
>42 : 42
>foo : any

const f14 = id4(function ({ foo = 42 }) { return foo });
>f14 : ({ foo }: { foo?: number | undefined; }) => number
>id4(function ({ foo = 42 }) { return foo }) : ({ foo }: { foo?: number | undefined; }) => number
>id4 : <T extends (x: { foo?: number | undefined; }) => any>(input: T) => T
>function ({ foo = 42 }) { return foo } : ({ foo }: { foo?: number | undefined; }) => number
>foo : number
>42 : 42
>foo : number

const f20 = function (foo = 42) { return foo };
>f20 : (foo?: number) => number
>function (foo = 42) { return foo } : (foo?: number) => number
>foo : number
>42 : 42
>foo : number

const f21 = id1(function (foo = 42) { return foo });
>f21 : (foo?: number) => number
>id1(function (foo = 42) { return foo }) : (foo?: number) => number
>id1 : <T>(input: T) => T
>function (foo = 42) { return foo } : (foo?: number) => number
>foo : number
>42 : 42
>foo : number

const f22 = id2(function (foo = 42) { return foo });
>f22 : (foo?: any) => any
>id2(function (foo = 42) { return foo }) : (foo?: any) => any
>id2 : <T extends (x: any) => any>(input: T) => T
>function (foo = 42) { return foo } : (foo?: any) => any
>foo : any
>42 : 42
>foo : any

const f25 = id5(function (foo = 42) { return foo });
>f25 : (foo?: number | undefined) => number
>id5(function (foo = 42) { return foo }) : (foo?: number | undefined) => number
>id5 : <T extends (x?: number | undefined) => any>(input: T) => T
>function (foo = 42) { return foo } : (foo?: number | undefined) => number
>foo : number | undefined
>42 : 42
>foo : number

const f1 = (x = 1) => 0;  // number
>f1 : (x?: number) => number
>(x = 1) => 0 : (x?: number) => number
>x : number
>1 : 1
>0 : 0

const f2: any = (x = 1) => 0;  // number
>f2 : any
>(x = 1) => 0 : (x?: number) => number
>x : number
>1 : 1
>0 : 0

const f3: unknown = (x = 1) => 0;  // number
>f3 : unknown
>(x = 1) => 0 : (x?: number) => number
>x : number
>1 : 1
>0 : 0

const f4: Function = (x = 1) => 0;  // number
>f4 : Function
>(x = 1) => 0 : (x?: number) => number
>x : number
>1 : 1
>0 : 0

const f5: (...args: any[]) => any = (x = 1) => 0;  // any
>f5 : (...args: any[]) => any
>args : any[]
>(x = 1) => 0 : (x?: any) => number
>x : any
>1 : 1
>0 : 0

const f6: () => any = (x = 1) => 0;  // number
>f6 : () => any
>(x = 1) => 0 : (x?: number) => number
>x : number
>1 : 1
>0 : 0

const f7: () => any = (x?) => 0;  // Implicit any error
>f7 : () => any
>(x?) => 0 : (x?: any) => number
>x : any
>0 : 0

const f8: () => any = (...x) => 0;  // []
>f8 : () => any
>(...x) => 0 : () => number
>x : []
>0 : 0

declare function g1<T>(x: T): T;
>g1 : <T>(x: T) => T
>x : T

declare function g2<T extends any>(x: T): T;
>g2 : <T extends unknown>(x: T) => T
>x : T

declare function g3<T extends unknown>(x: T): T;
>g3 : <T extends unknown>(x: T) => T
>x : T

declare function g4<T extends Function>(x: T): T;
>g4 : <T extends Function>(x: T) => T
>x : T

declare function g5<T extends (...args: any[]) => any>(x: T): T;
>g5 : <T extends (...args: any[]) => any>(x: T) => T
>args : any[]
>x : T

declare function g6<T extends () => any>(x: T): T;
>g6 : <T extends () => any>(x: T) => T
>x : T

g1((x = 1) => 0);  // number
>g1((x = 1) => 0) : (x?: number) => 0
>g1 : <T>(x: T) => T
>(x = 1) => 0 : (x?: number) => 0
>x : number
>1 : 1
>0 : 0

g2((x = 1) => 0);  // number
>g2((x = 1) => 0) : (x?: number) => 0
>g2 : <T extends unknown>(x: T) => T
>(x = 1) => 0 : (x?: number) => 0
>x : number
>1 : 1
>0 : 0

g3((x = 1) => 0);  // number
>g3((x = 1) => 0) : (x?: number) => 0
>g3 : <T extends unknown>(x: T) => T
>(x = 1) => 0 : (x?: number) => 0
>x : number
>1 : 1
>0 : 0

g4((x = 1) => 0);  // number
>g4((x = 1) => 0) : (x?: number) => 0
>g4 : <T extends Function>(x: T) => T
>(x = 1) => 0 : (x?: number) => 0
>x : number
>1 : 1
>0 : 0

g5((x = 1) => 0);  // any
>g5((x = 1) => 0) : (x?: any) => number
>g5 : <T extends (...args: any[]) => any>(x: T) => T
>(x = 1) => 0 : (x?: any) => number
>x : any
>1 : 1
>0 : 0

g6((x = 1) => 0);  // number
>g6((x = 1) => 0) : (x?: number) => number
>g6 : <T extends () => any>(x: T) => T
>(x = 1) => 0 : (x?: number) => number
>x : number
>1 : 1
>0 : 0

g6((x?) => 0);     // Implicit any error
>g6((x?) => 0) : (x?: any) => number
>g6 : <T extends () => any>(x: T) => T
>(x?) => 0 : (x?: any) => number
>x : any
>0 : 0

g6((...x) => 0);   // []
>g6((...x) => 0) : () => number
>g6 : <T extends () => any>(x: T) => T
>(...x) => 0 : () => number
>x : []
>0 : 0

// Repro from #28816

function id<T>(input: T): T { return input }
>id : <T>(input: T) => T
>input : T
>input : T

function getFoo ({ foo = 42 }) {
>getFoo : ({ foo }: { foo?: number | undefined; }) => number
>foo : number
>42 : 42

  return foo;
>foo : number
}

const newGetFoo = id(getFoo);
>newGetFoo : ({ foo }: { foo?: number | undefined; }) => number
>id(getFoo) : ({ foo }: { foo?: number | undefined; }) => number
>id : <T>(input: T) => T
>getFoo : ({ foo }: { foo?: number | undefined; }) => number

const newGetFoo2 = id(function getFoo ({ foo = 42 }) {
>newGetFoo2 : ({ foo }: { foo?: number | undefined; }) => number
>id(function getFoo ({ foo = 42 }) {  return foo;}) : ({ foo }: { foo?: number | undefined; }) => number
>id : <T>(input: T) => T
>function getFoo ({ foo = 42 }) {  return foo;} : ({ foo }: { foo?: number | undefined; }) => number
>getFoo : ({ foo }: { foo?: number | undefined; }) => number
>foo : number
>42 : 42

  return foo;
>foo : number

});

// Repro from comment in #30840

declare function memoize<F extends Function>(func: F): F;
>memoize : <F extends Function>(func: F) => F
>func : F

function add(x: number, y = 0): number {
>add : (x: number, y?: number) => number
>x : number
>y : number
>0 : 0

    return x + y;
>x + y : number
>x : number
>y : number
}
const memoizedAdd = memoize(add);
>memoizedAdd : (x: number, y?: number) => number
>memoize(add) : (x: number, y?: number) => number
>memoize : <F extends Function>(func: F) => F
>add : (x: number, y?: number) => number

const add2 = (x: number, y = 0): number => x + y;
>add2 : (x: number, y?: number) => number
>(x: number, y = 0): number => x + y : (x: number, y?: number) => number
>x : number
>y : number
>0 : 0
>x + y : number
>x : number
>y : number

const memoizedAdd2 = memoize(add2);
>memoizedAdd2 : (x: number, y?: number) => number
>memoize(add2) : (x: number, y?: number) => number
>memoize : <F extends Function>(func: F) => F
>add2 : (x: number, y?: number) => number

const memoizedAdd3 = memoize((x: number, y = 0): number => x + y);
>memoizedAdd3 : (x: number, y?: number) => number
>memoize((x: number, y = 0): number => x + y) : (x: number, y?: number) => number
>memoize : <F extends Function>(func: F) => F
>(x: number, y = 0): number => x + y : (x: number, y?: number) => number
>x : number
>y : number
>0 : 0
>x + y : number
>x : number
>y : number

// Repro from #36052

declare function execute(script: string | Function): Promise<string>;
>execute : (script: string | Function) => Promise<string>
>script : string | Function
  
export function executeSomething() {
>executeSomething : () => Promise<string>

    return execute((root: HTMLElement, debug = true) => {
>execute((root: HTMLElement, debug = true) => {        if (debug) {            root.innerHTML = '';        }    }) : Promise<string>
>execute : (script: string | Function) => Promise<string>
>(root: HTMLElement, debug = true) => {        if (debug) {            root.innerHTML = '';        }    } : (root: HTMLElement, debug?: boolean) => void
>root : HTMLElement
>debug : boolean
>true : true

        if (debug) {
>debug : boolean

            root.innerHTML = '';
>root.innerHTML = '' : ""
>root.innerHTML : string
>root : HTMLElement
>innerHTML : string
>'' : ""
        }
    });
}

const fz1 = (debug = true) => false;
>fz1 : (debug?: boolean) => boolean
>(debug = true) => false : (debug?: boolean) => boolean
>debug : boolean
>true : true
>false : false

const fz2: Function = (debug = true) => false;
>fz2 : Function
>(debug = true) => false : (debug?: boolean) => boolean
>debug : boolean
>true : true
>false : false