aboutsummaryrefslogtreecommitdiffstatshomepage
path: root/node_modules/undici/types/webidl.d.ts
blob: 40cfe064f8fc33e4ff1138f1afdb4555857d3d73 (plain) (blame)
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
// These types are not exported, and are only used internally

/**
 * Take in an unknown value and return one that is of type T
 */
type Converter<T> = (object: unknown) => T

type SequenceConverter<T> = (object: unknown) => T[]

type RecordConverter<K extends string, V> = (object: unknown) => Record<K, V>

interface ConvertToIntOpts {
  clamp?: boolean
  enforceRange?: boolean
}

interface WebidlErrors {
  exception (opts: { header: string, message: string }): TypeError
  /**
   * @description Throw an error when conversion from one type to another has failed
   */
  conversionFailed (opts: {
    prefix: string
    argument: string
    types: string[]
  }): TypeError
  /**
   * @description Throw an error when an invalid argument is provided
   */
  invalidArgument (opts: {
    prefix: string
    value: string
    type: string
  }): TypeError
}

interface WebidlUtil {
  /**
   * @see https://tc39.es/ecma262/#sec-ecmascript-data-types-and-values
   */
  Type (object: unknown):
    | 'Undefined'
    | 'Boolean'
    | 'String'
    | 'Symbol'
    | 'Number'
    | 'BigInt'
    | 'Null'
    | 'Object'

  /**
   * @see https://webidl.spec.whatwg.org/#abstract-opdef-converttoint
   */
  ConvertToInt (
    V: unknown,
    bitLength: number,
    signedness: 'signed' | 'unsigned',
    opts?: ConvertToIntOpts
  ): number

  /**
   * @see https://webidl.spec.whatwg.org/#abstract-opdef-converttoint
   */
  IntegerPart (N: number): number
}

interface WebidlConverters {
  /**
   * @see https://webidl.spec.whatwg.org/#es-DOMString
   */
  DOMString (V: unknown, opts?: {
    legacyNullToEmptyString: boolean
  }): string

  /**
   * @see https://webidl.spec.whatwg.org/#es-ByteString
   */
  ByteString (V: unknown): string

  /**
   * @see https://webidl.spec.whatwg.org/#es-USVString
   */
  USVString (V: unknown): string

  /**
   * @see https://webidl.spec.whatwg.org/#es-boolean
   */
  boolean (V: unknown): boolean

  /**
   * @see https://webidl.spec.whatwg.org/#es-any
   */
  any <Value>(V: Value): Value

  /**
   * @see https://webidl.spec.whatwg.org/#es-long-long
   */
  ['long long'] (V: unknown): number

  /**
   * @see https://webidl.spec.whatwg.org/#es-unsigned-long-long
   */
  ['unsigned long long'] (V: unknown): number

  /**
   * @see https://webidl.spec.whatwg.org/#es-unsigned-long
   */
  ['unsigned long'] (V: unknown): number

  /**
   * @see https://webidl.spec.whatwg.org/#es-unsigned-short
   */
  ['unsigned short'] (V: unknown, opts?: ConvertToIntOpts): number

  /**
   * @see https://webidl.spec.whatwg.org/#idl-ArrayBuffer
   */
  ArrayBuffer (V: unknown): ArrayBufferLike
  ArrayBuffer (V: unknown, opts: { allowShared: false }): ArrayBuffer

  /**
   * @see https://webidl.spec.whatwg.org/#es-buffer-source-types
   */
  TypedArray (
    V: unknown,
    TypedArray: NodeJS.TypedArray | ArrayBufferLike
  ): NodeJS.TypedArray | ArrayBufferLike
  TypedArray (
    V: unknown,
    TypedArray: NodeJS.TypedArray | ArrayBufferLike,
    opts?: { allowShared: false }
  ): NodeJS.TypedArray | ArrayBuffer

  /**
   * @see https://webidl.spec.whatwg.org/#es-buffer-source-types
   */
  DataView (V: unknown, opts?: { allowShared: boolean }): DataView

  /**
   * @see https://webidl.spec.whatwg.org/#BufferSource
   */
  BufferSource (
    V: unknown,
    opts?: { allowShared: boolean }
  ): NodeJS.TypedArray | ArrayBufferLike | DataView

  ['sequence<ByteString>']: SequenceConverter<string>
  
  ['sequence<sequence<ByteString>>']: SequenceConverter<string[]>

  ['record<ByteString, ByteString>']: RecordConverter<string, string>

  [Key: string]: (...args: any[]) => unknown
}

export interface Webidl {
  errors: WebidlErrors
  util: WebidlUtil
  converters: WebidlConverters

  /**
   * @description Performs a brand-check on {@param V} to ensure it is a
   * {@param cls} object.
   */
  brandCheck <Interface>(V: unknown, cls: Interface, opts?: { strict?: boolean }): asserts V is Interface

  /**
   * @see https://webidl.spec.whatwg.org/#es-sequence
   * @description Convert a value, V, to a WebIDL sequence type.
   */
  sequenceConverter <Type>(C: Converter<Type>): SequenceConverter<Type>

  illegalConstructor (): never

  /**
   * @see https://webidl.spec.whatwg.org/#es-to-record
   * @description Convert a value, V, to a WebIDL record type.
   */
  recordConverter <K extends string, V>(
    keyConverter: Converter<K>,
    valueConverter: Converter<V>
  ): RecordConverter<K, V>

  /**
   * Similar to {@link Webidl.brandCheck} but allows skipping the check if third party
   * interfaces are allowed.
   */
  interfaceConverter <Interface>(cls: Interface): (
    V: unknown,
    opts?: { strict: boolean }
  ) => asserts V is typeof cls

  // TODO(@KhafraDev): a type could likely be implemented that can infer the return type
  // from the converters given?
  /**
   * Converts a value, V, to a WebIDL dictionary types. Allows limiting which keys are
   * allowed, values allowed, optional and required keys. Auto converts the value to
   * a type given a converter.
   */
  dictionaryConverter (converters: {
    key: string,
    defaultValue?: unknown,
    required?: boolean,
    converter: (...args: unknown[]) => unknown,
    allowedValues?: unknown[]
  }[]): (V: unknown) => Record<string, unknown>

  /**
   * @see https://webidl.spec.whatwg.org/#idl-nullable-type
   * @description allows a type, V, to be null
   */
  nullableConverter <T>(
    converter: Converter<T>
  ): (V: unknown) => ReturnType<typeof converter> | null

  argumentLengthCheck (args: { length: number }, min: number, context: {
    header: string
    message?: string
  }): void
}