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The ISC License | ||
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Copyright (c) 2017-2022 npm, Inc., Isaac Z. Schlueter, and Contributors | ||
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Permission to use, copy, modify, and/or distribute this software for any | ||
purpose with or without fee is hereby granted, provided that the above | ||
copyright notice and this permission notice appear in all copies. | ||
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THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES | ||
WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF | ||
MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR | ||
ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES | ||
WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN | ||
ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR | ||
IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
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/// <reference types="node" /> | ||
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// Note: marking anything protected or private in the exported | ||
// class will limit Minipass's ability to be used as the base | ||
// for mixin classes. | ||
import { EventEmitter } from 'events' | ||
import { Stream } from 'stream' | ||
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declare namespace Minipass { | ||
type Encoding = BufferEncoding | 'buffer' | null | ||
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interface Writable extends EventEmitter { | ||
end(): any | ||
write(chunk: any, ...args: any[]): any | ||
} | ||
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interface Readable extends EventEmitter { | ||
pause(): any | ||
resume(): any | ||
pipe(): any | ||
} | ||
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type DualIterable<T> = Iterable<T> & AsyncIterable<T> | ||
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type ContiguousData = Buffer | ArrayBufferLike | ArrayBufferView | string | ||
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type BufferOrString = Buffer | string | ||
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interface StringOptions { | ||
encoding: BufferEncoding | ||
objectMode?: boolean | ||
async?: boolean | ||
} | ||
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interface BufferOptions { | ||
encoding?: null | 'buffer' | ||
objectMode?: boolean | ||
async?: boolean | ||
} | ||
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interface ObjectModeOptions { | ||
objectMode: true | ||
async?: boolean | ||
} | ||
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interface PipeOptions { | ||
end?: boolean | ||
proxyErrors?: boolean | ||
} | ||
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type Options<T> = T extends string | ||
? StringOptions | ||
: T extends Buffer | ||
? BufferOptions | ||
: ObjectModeOptions | ||
} | ||
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declare class Minipass< | ||
RType extends any = Buffer, | ||
WType extends any = RType extends Minipass.BufferOrString | ||
? Minipass.ContiguousData | ||
: RType | ||
> | ||
extends Stream | ||
implements Minipass.DualIterable<RType> | ||
{ | ||
static isStream(stream: any): stream is Minipass.Readable | Minipass.Writable | ||
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readonly bufferLength: number | ||
readonly flowing: boolean | ||
readonly writable: boolean | ||
readonly readable: boolean | ||
readonly paused: boolean | ||
readonly emittedEnd: boolean | ||
readonly destroyed: boolean | ||
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/** | ||
* Technically writable, but mutating it can change the type, | ||
* so is not safe to do in TypeScript. | ||
*/ | ||
readonly objectMode: boolean | ||
async: boolean | ||
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/** | ||
* Note: encoding is not actually read-only, and setEncoding(enc) | ||
* exists. However, this type definition will insist that TypeScript | ||
* programs declare the type of a Minipass stream up front, and if | ||
* that type is string, then an encoding MUST be set in the ctor. If | ||
* the type is Buffer, then the encoding must be missing, or set to | ||
* 'buffer' or null. If the type is anything else, then objectMode | ||
* must be set in the constructor options. So there is effectively | ||
* no allowed way that a TS program can set the encoding after | ||
* construction, as doing so will destroy any hope of type safety. | ||
* TypeScript does not provide many options for changing the type of | ||
* an object at run-time, which is what changing the encoding does. | ||
*/ | ||
readonly encoding: Minipass.Encoding | ||
// setEncoding(encoding: Encoding): void | ||
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// Options required if not reading buffers | ||
constructor( | ||
...args: RType extends Buffer | ||
? [] | [Minipass.Options<RType>] | ||
: [Minipass.Options<RType>] | ||
) | ||
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write(chunk: WType, cb?: () => void): boolean | ||
write(chunk: WType, encoding?: Minipass.Encoding, cb?: () => void): boolean | ||
read(size?: number): RType | ||
end(cb?: () => void): this | ||
end(chunk: any, cb?: () => void): this | ||
end(chunk: any, encoding?: Minipass.Encoding, cb?: () => void): this | ||
pause(): void | ||
resume(): void | ||
promise(): Promise<void> | ||
collect(): Promise<RType[]> | ||
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concat(): RType extends Minipass.BufferOrString ? Promise<RType> : never | ||
destroy(er?: any): void | ||
pipe<W extends Minipass.Writable>(dest: W, opts?: Minipass.PipeOptions): W | ||
unpipe<W extends Minipass.Writable>(dest: W): void | ||
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/** | ||
* alias for on() | ||
*/ | ||
addEventHandler(event: string, listener: (...args: any[]) => any): this | ||
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on(event: string, listener: (...args: any[]) => any): this | ||
on(event: 'data', listener: (chunk: RType) => any): this | ||
on(event: 'error', listener: (error: any) => any): this | ||
on( | ||
event: | ||
| 'readable' | ||
| 'drain' | ||
| 'resume' | ||
| 'end' | ||
| 'prefinish' | ||
| 'finish' | ||
| 'close', | ||
listener: () => any | ||
): this | ||
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[Symbol.iterator](): Iterator<RType> | ||
[Symbol.asyncIterator](): AsyncIterator<RType> | ||
} | ||
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export = Minipass |
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