Updating the Chromium reference build for Windows. The continuous...

resources/inspector/consarray.js

-// Copyright 2009 the V8 project authors. All rights reserved.
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-//     * Redistributions of source code must retain the above copyright
-//       notice, this list of conditions and the following disclaimer.
-//     * Redistributions in binary form must reproduce the above
-//       copyright notice, this list of conditions and the following
-//       disclaimer in the documentation and/or other materials provided
-//       with the distribution.
-//     * Neither the name of Google Inc. nor the names of its
-//       contributors may be used to endorse or promote products derived
-//       from this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-/**
- * Constructs a ConsArray object. It is used mainly for tree traversal.
- * In this use case we have lots of arrays that we need to iterate
- * sequentally. The internal Array implementation is horribly slow
- * when concatenating on large (10K items) arrays due to memory copying.
- * That's why we avoid copying memory and insead build a linked list
- * of arrays to iterate through.
- *
- * @constructor
- */
-function ConsArray() {
-  this.tail_ = new ConsArray.Cell(null, null);
-  this.currCell_ = this.tail_;
-  this.currCellPos_ = 0;
-};
-
-
-/**
- * Concatenates another array for iterating. Empty arrays are ignored.
- * This operation can be safely performed during ongoing ConsArray
- * iteration.
- *
- * @param {Array} arr Array to concatenate.
- */
-ConsArray.prototype.concat = function(arr) {
-  if (arr.length > 0) {
-    this.tail_.data = arr;
-    this.tail_ = this.tail_.next = new ConsArray.Cell(null, null);
-  }
-};
-
-
-/**
- * Whether the end of iteration is reached.
- */
-ConsArray.prototype.atEnd = function() {
-  return this.currCell_ === null ||
-      this.currCell_.data === null ||
-      this.currCellPos_ >= this.currCell_.data.length;
-};
-
-
-/**
- * Returns the current item, moves to the next one.
- */
-ConsArray.prototype.next = function() {
-  var result = this.currCell_.data[this.currCellPos_++];
-  if (this.currCellPos_ >= this.currCell_.data.length) {
-    this.currCell_ = this.currCell_.next;
-    this.currCellPos_ = 0;
-  }
-  return result;
-};
-
-
-/**
- * A cell object used for constructing a list in ConsArray.
- *
- * @constructor
- */
-ConsArray.Cell = function(data, next) {
-  this.data = data;
-  this.next = next;
-};
-