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node_modules/ws/lib/buffer-util.js

@@ -1,72 +0,0 @@
-'use strict';
-
-/**
- * Merges an array of buffers into a new buffer.
- *
- * @param {Buffer[]} list The array of buffers to concat
- * @param {Number} totalLength The total length of buffers in the list
- * @return {Buffer} The resulting buffer
- * @public
- */
-function concat (list, totalLength) {
-  const target = Buffer.allocUnsafe(totalLength);
-  var offset = 0;
-
-  for (var i = 0; i < list.length; i++) {
-    const buf = list[i];
-    buf.copy(target, offset);
-    offset += buf.length;
-  }
-
-  return target;
-}
-
-/**
- * Masks a buffer using the given mask.
- *
- * @param {Buffer} source The buffer to mask
- * @param {Buffer} mask The mask to use
- * @param {Buffer} output The buffer where to store the result
- * @param {Number} offset The offset at which to start writing
- * @param {Number} length The number of bytes to mask.
- * @public
- */
-function _mask (source, mask, output, offset, length) {
-  for (var i = 0; i < length; i++) {
-    output[offset + i] = source[i] ^ mask[i & 3];
-  }
-}
-
-/**
- * Unmasks a buffer using the given mask.
- *
- * @param {Buffer} buffer The buffer to unmask
- * @param {Buffer} mask The mask to use
- * @public
- */
-function _unmask (buffer, mask) {
-  // Required until https://github.com/nodejs/node/issues/9006 is resolved.
-  const length = buffer.length;
-  for (var i = 0; i < length; i++) {
-    buffer[i] ^= mask[i & 3];
-  }
-}
-
-try {
-  const bufferUtil = require('bufferutil');
-  const bu = bufferUtil.BufferUtil || bufferUtil;
-
-  module.exports = {
-    mask (source, mask, output, offset, length) {
-      if (length < 48) _mask(source, mask, output, offset, length);
-      else bu.mask(source, mask, output, offset, length);
-    },
-    unmask (buffer, mask) {
-      if (buffer.length < 32) _unmask(buffer, mask);
-      else bu.unmask(buffer, mask);
-    },
-    concat
-  };
-} catch (e) /* istanbul ignore next */ {
-  module.exports = { concat, mask: _mask, unmask: _unmask };
-}