Move V8 to external/v8
Change-Id: If68025d67453785a651c5dfb34fad298c16676a4
diff --git a/tools/profile_view.js b/tools/profile_view.js
new file mode 100644
index 0000000..bdea631
--- /dev/null
+++ b/tools/profile_view.js
@@ -0,0 +1,224 @@
+// 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.
+
+
+// Initlialize namespaces
+var devtools = devtools || {};
+devtools.profiler = devtools.profiler || {};
+
+
+/**
+ * Creates a Profile View builder object.
+ *
+ * @param {number} samplingRate Number of ms between profiler ticks.
+ * @constructor
+ */
+devtools.profiler.ViewBuilder = function(samplingRate) {
+ this.samplingRate = samplingRate;
+};
+
+
+/**
+ * Builds a profile view for the specified call tree.
+ *
+ * @param {devtools.profiler.CallTree} callTree A call tree.
+ * @param {boolean} opt_bottomUpViewWeights Whether remapping
+ * of self weights for a bottom up view is needed.
+ */
+devtools.profiler.ViewBuilder.prototype.buildView = function(
+ callTree, opt_bottomUpViewWeights) {
+ var head;
+ var samplingRate = this.samplingRate;
+ var createViewNode = this.createViewNode;
+ callTree.traverse(function(node, viewParent) {
+ var totalWeight = node.totalWeight * samplingRate;
+ var selfWeight = node.selfWeight * samplingRate;
+ if (opt_bottomUpViewWeights === true) {
+ if (viewParent === head) {
+ selfWeight = totalWeight;
+ } else {
+ selfWeight = 0;
+ }
+ }
+ var viewNode = createViewNode(node.label, totalWeight, selfWeight, head);
+ if (viewParent) {
+ viewParent.addChild(viewNode);
+ } else {
+ head = viewNode;
+ }
+ return viewNode;
+ });
+ var view = this.createView(head);
+ return view;
+};
+
+
+/**
+ * Factory method for a profile view.
+ *
+ * @param {devtools.profiler.ProfileView.Node} head View head node.
+ * @return {devtools.profiler.ProfileView} Profile view.
+ */
+devtools.profiler.ViewBuilder.prototype.createView = function(head) {
+ return new devtools.profiler.ProfileView(head);
+};
+
+
+/**
+ * Factory method for a profile view node.
+ *
+ * @param {string} internalFuncName A fully qualified function name.
+ * @param {number} totalTime Amount of time that application spent in the
+ * corresponding function and its descendants (not that depending on
+ * profile they can be either callees or callers.)
+ * @param {number} selfTime Amount of time that application spent in the
+ * corresponding function only.
+ * @param {devtools.profiler.ProfileView.Node} head Profile view head.
+ * @return {devtools.profiler.ProfileView.Node} Profile view node.
+ */
+devtools.profiler.ViewBuilder.prototype.createViewNode = function(
+ funcName, totalTime, selfTime, head) {
+ return new devtools.profiler.ProfileView.Node(
+ funcName, totalTime, selfTime, head);
+};
+
+
+/**
+ * Creates a Profile View object. It allows to perform sorting
+ * and filtering actions on the profile.
+ *
+ * @param {devtools.profiler.ProfileView.Node} head Head (root) node.
+ * @constructor
+ */
+devtools.profiler.ProfileView = function(head) {
+ this.head = head;
+};
+
+
+/**
+ * Sorts the profile view using the specified sort function.
+ *
+ * @param {function(devtools.profiler.ProfileView.Node,
+ * devtools.profiler.ProfileView.Node):number} sortFunc A sorting
+ * functions. Must comply with Array.sort sorting function requirements.
+ */
+devtools.profiler.ProfileView.prototype.sort = function(sortFunc) {
+ this.traverse(function (node) {
+ node.sortChildren(sortFunc);
+ });
+};
+
+
+/**
+ * Traverses profile view nodes in preorder.
+ *
+ * @param {function(devtools.profiler.ProfileView.Node)} f Visitor function.
+ */
+devtools.profiler.ProfileView.prototype.traverse = function(f) {
+ var nodesToTraverse = new ConsArray();
+ nodesToTraverse.concat([this.head]);
+ while (!nodesToTraverse.atEnd()) {
+ var node = nodesToTraverse.next();
+ f(node);
+ nodesToTraverse.concat(node.children);
+ }
+};
+
+
+/**
+ * Constructs a Profile View node object. Each node object corresponds to
+ * a function call.
+ *
+ * @param {string} internalFuncName A fully qualified function name.
+ * @param {number} totalTime Amount of time that application spent in the
+ * corresponding function and its descendants (not that depending on
+ * profile they can be either callees or callers.)
+ * @param {number} selfTime Amount of time that application spent in the
+ * corresponding function only.
+ * @param {devtools.profiler.ProfileView.Node} head Profile view head.
+ * @constructor
+ */
+devtools.profiler.ProfileView.Node = function(
+ internalFuncName, totalTime, selfTime, head) {
+ this.internalFuncName = internalFuncName;
+ this.totalTime = totalTime;
+ this.selfTime = selfTime;
+ this.head = head;
+ this.parent = null;
+ this.children = [];
+};
+
+
+/**
+ * Returns a share of the function's total time in application's total time.
+ */
+devtools.profiler.ProfileView.Node.prototype.__defineGetter__(
+ 'totalPercent',
+ function() { return this.totalTime /
+ (this.head ? this.head.totalTime : this.totalTime) * 100.0; });
+
+
+/**
+ * Returns a share of the function's self time in application's total time.
+ */
+devtools.profiler.ProfileView.Node.prototype.__defineGetter__(
+ 'selfPercent',
+ function() { return this.selfTime /
+ (this.head ? this.head.totalTime : this.totalTime) * 100.0; });
+
+
+/**
+ * Returns a share of the function's total time in its parent's total time.
+ */
+devtools.profiler.ProfileView.Node.prototype.__defineGetter__(
+ 'parentTotalPercent',
+ function() { return this.totalTime /
+ (this.parent ? this.parent.totalTime : this.totalTime) * 100.0; });
+
+
+/**
+ * Adds a child to the node.
+ *
+ * @param {devtools.profiler.ProfileView.Node} node Child node.
+ */
+devtools.profiler.ProfileView.Node.prototype.addChild = function(node) {
+ node.parent = this;
+ this.children.push(node);
+};
+
+
+/**
+ * Sorts all the node's children recursively.
+ *
+ * @param {function(devtools.profiler.ProfileView.Node,
+ * devtools.profiler.ProfileView.Node):number} sortFunc A sorting
+ * functions. Must comply with Array.sort sorting function requirements.
+ */
+devtools.profiler.ProfileView.Node.prototype.sortChildren = function(
+ sortFunc) {
+ this.children.sort(sortFunc);
+};