1 files changed, 0 insertions, 232 deletions
diff --git a/cli/js/buffer.ts b/cli/js/buffer.ts
deleted file mode 100644
index 4f88ff625..000000000
--- a/cli/js/buffer.ts
+++ /dev/null
@@ -1,232 +0,0 @@
-// Copyright 2018-2020 the Deno authors. All rights reserved. MIT license.
-
-// This code has been ported almost directly from Go's src/bytes/buffer.go
-// Copyright 2009 The Go Authors. All rights reserved. BSD license.
-// https://github.com/golang/go/blob/master/LICENSE
-
-import type { Reader, Writer, ReaderSync, WriterSync } from "./io.ts";
-import { assert } from "./util.ts";
-
-// MIN_READ is the minimum ArrayBuffer size passed to a read call by
-// buffer.ReadFrom. As long as the Buffer has at least MIN_READ bytes beyond
-// what is required to hold the contents of r, readFrom() will not grow the
-// underlying buffer.
-const MIN_READ = 32 * 1024;
-const MAX_SIZE = 2 ** 32 - 2;
-
-// `off` is the offset into `dst` where it will at which to begin writing values
-// from `src`.
-// Returns the number of bytes copied.
-function copyBytes(src: Uint8Array, dst: Uint8Array, off = 0): number {
-  const r = dst.byteLength - off;
-  if (src.byteLength > r) {
-    src = src.subarray(0, r);
-  }
-  dst.set(src, off);
-  return src.byteLength;
-}
-
-export class Buffer implements Reader, ReaderSync, Writer, WriterSync {
-  #buf: Uint8Array; // contents are the bytes buf[off : len(buf)]
-  #off = 0; // read at buf[off], write at buf[buf.byteLength]
-
-  constructor(ab?: ArrayBuffer) {
-    if (ab == null) {
-      this.#buf = new Uint8Array(0);
-      return;
-    }
-
-    this.#buf = new Uint8Array(ab);
-  }
-
-  bytes(options: { copy?: boolean } = { copy: true }): Uint8Array {
-    if (options.copy === false) return this.#buf.subarray(this.#off);
-    return this.#buf.slice(this.#off);
-  }
-
-  empty(): boolean {
-    return this.#buf.byteLength <= this.#off;
-  }
-
-  get length(): number {
-    return this.#buf.byteLength - this.#off;
-  }
-
-  get capacity(): number {
-    return this.#buf.buffer.byteLength;
-  }
-
-  truncate(n: number): void {
-    if (n === 0) {
-      this.reset();
-      return;
-    }
-    if (n < 0 || n > this.length) {
-      throw Error("bytes.Buffer: truncation out of range");
-    }
-    this.#reslice(this.#off + n);
-  }
-
-  reset(): void {
-    this.#reslice(0);
-    this.#off = 0;
-  }
-
-  #tryGrowByReslice = (n: number): number => {
-    const l = this.#buf.byteLength;
-    if (n <= this.capacity - l) {
-      this.#reslice(l + n);
-      return l;
-    }
-    return -1;
-  };
-
-  #reslice = (len: number): void => {
-    assert(len <= this.#buf.buffer.byteLength);
-    this.#buf = new Uint8Array(this.#buf.buffer, 0, len);
-  };
-
-  readSync(p: Uint8Array): number | null {
-    if (this.empty()) {
-      // Buffer is empty, reset to recover space.
-      this.reset();
-      if (p.byteLength === 0) {
-        // this edge case is tested in 'bufferReadEmptyAtEOF' test
-        return 0;
-      }
-      return null;
-    }
-    const nread = copyBytes(this.#buf.subarray(this.#off), p);
-    this.#off += nread;
-    return nread;
-  }
-
-  read(p: Uint8Array): Promise<number | null> {
-    const rr = this.readSync(p);
-    return Promise.resolve(rr);
-  }
-
-  writeSync(p: Uint8Array): number {
-    const m = this.#grow(p.byteLength);
-    return copyBytes(p, this.#buf, m);
-  }
-
-  write(p: Uint8Array): Promise<number> {
-    const n = this.writeSync(p);
-    return Promise.resolve(n);
-  }
-
-  #grow = (n: number): number => {
-    const m = this.length;
-    // If buffer is empty, reset to recover space.
-    if (m === 0 && this.#off !== 0) {
-      this.reset();
-    }
-    // Fast: Try to grow by means of a reslice.
-    const i = this.#tryGrowByReslice(n);
-    if (i >= 0) {
-      return i;
-    }
-    const c = this.capacity;
-    if (n <= Math.floor(c / 2) - m) {
-      // We can slide things down instead of allocating a new
-      // ArrayBuffer. We only need m+n <= c to slide, but
-      // we instead let capacity get twice as large so we
-      // don't spend all our time copying.
-      copyBytes(this.#buf.subarray(this.#off), this.#buf);
-    } else if (c + n > MAX_SIZE) {
-      throw new Error("The buffer cannot be grown beyond the maximum size.");
-    } else {
-      // Not enough space anywhere, we need to allocate.
-      const buf = new Uint8Array(Math.min(2 * c + n, MAX_SIZE));
-      copyBytes(this.#buf.subarray(this.#off), buf);
-      this.#buf = buf;
-    }
-    // Restore this.#off and len(this.#buf).
-    this.#off = 0;
-    this.#reslice(Math.min(m + n, MAX_SIZE));
-    return m;
-  };
-
-  grow(n: number): void {
-    if (n < 0) {
-      throw Error("Buffer.grow: negative count");
-    }
-    const m = this.#grow(n);
-    this.#reslice(m);
-  }
-
-  async readFrom(r: Reader): Promise<number> {
-    let n = 0;
-    const tmp = new Uint8Array(MIN_READ);
-    while (true) {
-      const shouldGrow = this.capacity - this.length < MIN_READ;
-      // read into tmp buffer if there's not enough room
-      // otherwise read directly into the internal buffer
-      const buf = shouldGrow
-        ? tmp
-        : new Uint8Array(this.#buf.buffer, this.length);
-
-      const nread = await r.read(buf);
-      if (nread === null) {
-        return n;
-      }
-
-      // write will grow if needed
-      if (shouldGrow) this.writeSync(buf.subarray(0, nread));
-      else this.#reslice(this.length + nread);
-
-      n += nread;
-    }
-  }
-
-  readFromSync(r: ReaderSync): number {
-    let n = 0;
-    const tmp = new Uint8Array(MIN_READ);
-    while (true) {
-      const shouldGrow = this.capacity - this.length < MIN_READ;
-      // read into tmp buffer if there's not enough room
-      // otherwise read directly into the internal buffer
-      const buf = shouldGrow
-        ? tmp
-        : new Uint8Array(this.#buf.buffer, this.length);
-
-      const nread = r.readSync(buf);
-      if (nread === null) {
-        return n;
-      }
-
-      // write will grow if needed
-      if (shouldGrow) this.writeSync(buf.subarray(0, nread));
-      else this.#reslice(this.length + nread);
-
-      n += nread;
-    }
-  }
-}
-
-export async function readAll(r: Reader): Promise<Uint8Array> {
-  const buf = new Buffer();
-  await buf.readFrom(r);
-  return buf.bytes();
-}
-
-export function readAllSync(r: ReaderSync): Uint8Array {
-  const buf = new Buffer();
-  buf.readFromSync(r);
-  return buf.bytes();
-}
-
-export async function writeAll(w: Writer, arr: Uint8Array): Promise<void> {
-  let nwritten = 0;
-  while (nwritten < arr.length) {
-    nwritten += await w.write(arr.subarray(nwritten));
-  }
-}
-
-export function writeAllSync(w: WriterSync, arr: Uint8Array): void {
-  let nwritten = 0;
-  while (nwritten < arr.length) {
-    nwritten += w.writeSync(arr.subarray(nwritten));
-  }
-}