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Remove __io namespace (#4669)

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Ryan Dahl 2020-04-07 19:30:51 -04:00 committed by GitHub
parent f07fcfcc80
commit b4836be57e
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@ -1191,105 +1191,12 @@ declare namespace __eventTarget {
} }
} }
declare namespace __io {
/** UNSTABLE: maybe remove "SEEK_" prefix. Maybe capitalization wrong. */
export enum SeekMode {
SEEK_START = 0,
SEEK_CURRENT = 1,
SEEK_END = 2,
}
export interface Reader {
/** Reads up to p.byteLength bytes into `p`. It resolves to the number
* of bytes read (`0` < `n` <= `p.byteLength`) and rejects if any error encountered.
* Even if `read()` returns `n` < `p.byteLength`, it may use all of `p` as
* scratch space during the call. If some data is available but not
* `p.byteLength` bytes, `read()` conventionally returns what is available
* instead of waiting for more.
*
* When `read()` encounters end-of-file condition, it returns EOF symbol.
*
* When `read()` encounters an error, it rejects with an error.
*
* Callers should always process the `n` > `0` bytes returned before
* considering the EOF. Doing so correctly handles I/O errors that happen
* after reading some bytes and also both of the allowed EOF behaviors.
*
* Implementations must not retain `p`.
*/
read(p: Uint8Array): Promise<number | Deno.EOF>;
}
export interface SyncReader {
readSync(p: Uint8Array): number | Deno.EOF;
}
export interface Writer {
/** Writes `p.byteLength` bytes from `p` to the underlying data
* stream. It resolves to the number of bytes written from `p` (`0` <= `n` <=
* `p.byteLength`) and any error encountered that caused the write to stop
* early. `write()` must return a non-null error if it returns `n` <
* `p.byteLength`. write() must not modify the slice data, even temporarily.
*
* Implementations must not retain `p`.
*/
write(p: Uint8Array): Promise<number>;
}
export interface SyncWriter {
writeSync(p: Uint8Array): number;
}
export interface Closer {
close(): void;
}
export interface Seeker {
/** Seek sets the offset for the next `read()` or `write()` to offset,
* interpreted according to `whence`: `SEEK_START` means relative to the
* start of the file, `SEEK_CURRENT` means relative to the current offset,
* and `SEEK_END` means relative to the end. Seek returns the new offset
* relative to the start of the file and an error, if any.
*
* Seeking to an offset before the start of the file is an error. Seeking to
* any positive offset is legal, but the behavior of subsequent I/O operations
* on the underlying object is implementation-dependent.
* It returns the cursor position.
*/
seek(offset: number, whence: SeekMode): Promise<number>;
}
export interface SyncSeeker {
seekSync(offset: number, whence: SeekMode): number;
}
export interface ReadCloser extends Reader, Closer {}
export interface WriteCloser extends Writer, Closer {}
export interface ReadSeeker extends Reader, Seeker {}
export interface WriteSeeker extends Writer, Seeker {}
export interface ReadWriteCloser extends Reader, Writer, Closer {}
export interface ReadWriteSeeker extends Reader, Writer, Seeker {}
/** UNSTABLE: controversial.
*
* Copies from `src` to `dst` until either `EOF` is reached on `src`
* or an error occurs. It returns the number of bytes copied and the first
* error encountered while copying, if any.
*
* Because `copy()` is defined to read from `src` until `EOF`, it does not
* treat an `EOF` from `read()` as an error to be reported.
*/
export function copy(dst: Writer, src: Reader): Promise<number>;
/** UNSTABLE: Make Reader into AsyncIterable? Remove this?
*
* Turns `r` into async iterator.
*
* for await (const chunk of toAsyncIterator(reader)) {
* console.log(chunk)
* }
*/
export function toAsyncIterator(r: Reader): AsyncIterableIterator<Uint8Array>;
}
declare namespace __fetch { declare namespace __fetch {
class Body class Body
implements implements
__domTypes.Body, __domTypes.Body,
__domTypes.ReadableStream<Uint8Array>, __domTypes.ReadableStream<Uint8Array>,
__io.ReadCloser { Deno.ReadCloser {
readonly contentType: string; readonly contentType: string;
bodyUsed: boolean; bodyUsed: boolean;
readonly locked: boolean; readonly locked: boolean;