Merge deno_cli_snapshots into deno_cli (#3064)

1 files changed, 0 insertions, 170 deletions

diff --git a/js/io.ts b/js/io.ts
deleted file mode 100644
index 1a7bf8c4c..000000000
--- a/js/io.ts
+++ /dev/null
@@ -1,170 +0,0 @@
-// Copyright 2018-2019 the Deno authors. All rights reserved. MIT license.
-// Interfaces 100% copied from Go.
-// Documentation liberally lifted from them too.
-// Thank you! We love Go!
-
-// TODO(kt3k): EOF should be `unique symbol` type.
-// That might require some changes of ts_library_builder.
-// See #2591 for more details.
-export const EOF = null;
-export type EOF = null;
-
-// Seek whence values.
-// https://golang.org/pkg/io/#pkg-constants
-export enum SeekMode {
-  SEEK_START = 0,
-  SEEK_CURRENT = 1,
-  SEEK_END = 2
-}
-
-// Reader is the interface that wraps the basic read() method.
-// https://golang.org/pkg/io/#Reader
-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 | EOF>;
-}
-
-export interface SyncReader {
-  readSync(p: Uint8Array): number | EOF;
-}
-
-// Writer is the interface that wraps the basic write() method.
-// https://golang.org/pkg/io/#Writer
-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;
-}
-// https://golang.org/pkg/io/#Closer
-export interface Closer {
-  // The behavior of Close after the first call is undefined. Specific
-  // implementations may document their own behavior.
-  close(): void;
-}
-
-// https://golang.org/pkg/io/#Seeker
-export interface Seeker {
-  /** Seek sets the offset for the next `read()` or `write()` to offset,
-   * interpreted according to `whence`: `SeekStart` means relative to the start
-   * of the file, `SeekCurrent` means relative to the current offset, and
-   * `SeekEnd` 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.
-   */
-  seek(offset: number, whence: SeekMode): Promise<void>;
-}
-
-export interface SyncSeeker {
-  seekSync(offset: number, whence: SeekMode): void;
-}
-
-// https://golang.org/pkg/io/#ReadCloser
-export interface ReadCloser extends Reader, Closer {}
-
-// https://golang.org/pkg/io/#WriteCloser
-export interface WriteCloser extends Writer, Closer {}
-
-// https://golang.org/pkg/io/#ReadSeeker
-export interface ReadSeeker extends Reader, Seeker {}
-
-// https://golang.org/pkg/io/#WriteSeeker
-export interface WriteSeeker extends Writer, Seeker {}
-
-// https://golang.org/pkg/io/#ReadWriteCloser
-export interface ReadWriteCloser extends Reader, Writer, Closer {}
-
-// https://golang.org/pkg/io/#ReadWriteSeeker
-export interface ReadWriteSeeker extends Reader, Writer, Seeker {}
-
-/** 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.
- */
-// https://golang.org/pkg/io/#Copy
-export async function copy(dst: Writer, src: Reader): Promise<number> {
-  let n = 0;
-  const b = new Uint8Array(32 * 1024);
-  let gotEOF = false;
-  while (gotEOF === false) {
-    const result = await src.read(b);
-    if (result === EOF) {
-      gotEOF = true;
-    } else {
-      n += await dst.write(b.subarray(0, result));
-    }
-  }
-  return n;
-}
-
-/** Turns `r` into async iterator.
- *
- *      for await (const chunk of toAsyncIterator(reader)) {
- *          console.log(chunk)
- *      }
- */
-export function toAsyncIterator(r: Reader): AsyncIterableIterator<Uint8Array> {
-  const b = new Uint8Array(1024);
-  // Keep track if end-of-file has been reached, then
-  // signal that iterator is done during subsequent next()
-  // call. This is required because `r` can return a `number | EOF`
-  // with data read and EOF reached. But if iterator returns
-  // `done` then `value` is discarded.
-  //
-  // See https://github.com/denoland/deno/issues/2330 for reference.
-  let sawEof = false;
-
-  return {
-    [Symbol.asyncIterator](): AsyncIterableIterator<Uint8Array> {
-      return this;
-    },
-
-    async next(): Promise<IteratorResult<Uint8Array>> {
-      if (sawEof) {
-        return { value: new Uint8Array(), done: true };
-      }
-
-      const result = await r.read(b);
-      if (result === EOF) {
-        sawEof = true;
-        return { value: new Uint8Array(), done: true };
-      }
-
-      return {
-        value: b.subarray(0, result),
-        done: false
-      };
-    }
-  };
-}