1 files changed, 0 insertions, 84 deletions
diff --git a/std/io/ioutil.ts b/std/io/ioutil.ts
deleted file mode 100644
index d213095d9..000000000
--- a/std/io/ioutil.ts
+++ /dev/null
@@ -1,84 +0,0 @@
-// Copyright 2018-2021 the Deno authors. All rights reserved. MIT license.
-import type { BufReader } from "./bufio.ts";
-type Reader = Deno.Reader;
-type Writer = Deno.Writer;
-import { assert } from "../_util/assert.ts";
-
-const DEFAULT_BUFFER_SIZE = 32 * 1024;
-
-/** copy N size at the most.
- *  If read size is lesser than N, then returns nread
- * */
-export async function copyN(
-  r: Reader,
-  dest: Writer,
-  size: number,
-): Promise<number> {
-  let bytesRead = 0;
-  let buf = new Uint8Array(DEFAULT_BUFFER_SIZE);
-  while (bytesRead < size) {
-    if (size - bytesRead < DEFAULT_BUFFER_SIZE) {
-      buf = new Uint8Array(size - bytesRead);
-    }
-    const result = await r.read(buf);
-    const nread = result ?? 0;
-    bytesRead += nread;
-    if (nread > 0) {
-      let n = 0;
-      while (n < nread) {
-        n += await dest.write(buf.slice(n, nread));
-      }
-      assert(n === nread, "could not write");
-    }
-    if (result === null) {
-      break;
-    }
-  }
-  return bytesRead;
-}
-
-/** Read big endian 16bit short from BufReader */
-export async function readShort(buf: BufReader): Promise<number | null> {
-  const high = await buf.readByte();
-  if (high === null) return null;
-  const low = await buf.readByte();
-  if (low === null) throw new Deno.errors.UnexpectedEof();
-  return (high << 8) | low;
-}
-
-/** Read big endian 32bit integer from BufReader */
-export async function readInt(buf: BufReader): Promise<number | null> {
-  const high = await readShort(buf);
-  if (high === null) return null;
-  const low = await readShort(buf);
-  if (low === null) throw new Deno.errors.UnexpectedEof();
-  return (high << 16) | low;
-}
-
-const MAX_SAFE_INTEGER = BigInt(Number.MAX_SAFE_INTEGER);
-
-/** Read big endian 64bit long from BufReader */
-export async function readLong(buf: BufReader): Promise<number | null> {
-  const high = await readInt(buf);
-  if (high === null) return null;
-  const low = await readInt(buf);
-  if (low === null) throw new Deno.errors.UnexpectedEof();
-  const big = (BigInt(high) << 32n) | BigInt(low);
-  // We probably should provide a similar API that returns BigInt values.
-  if (big > MAX_SAFE_INTEGER) {
-    throw new RangeError(
-      "Long value too big to be represented as a JavaScript number.",
-    );
-  }
-  return Number(big);
-}
-
-/** Slice number into 64bit big endian byte array */
-export function sliceLongToBytes(d: number, dest = new Array(8)): number[] {
-  let big = BigInt(d);
-  for (let i = 0; i < 8; i++) {
-    dest[7 - i] = Number(big & 0xffn);
-    big >>= 8n;
-  }
-  return dest;
-}