webkitgtk-2.16.5HEADwebkitgtk-2.16.5master

1 files changed, 278 insertions, 0 deletions

diff --git a/Source/WebInspectorUI/UserInterface/Models/ProfileNode.js b/Source/WebInspectorUI/UserInterface/Models/ProfileNode.js
new file mode 100644
index 000000000..e6e952245
--- /dev/null
+++ b/Source/WebInspectorUI/UserInterface/Models/ProfileNode.js
@@ -0,0 +1,278 @@
+/*
+ * Copyright (C) 2014 Apple Inc. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. 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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS 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 APPLE INC. OR ITS 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.
+ */
+
+WebInspector.ProfileNode = class ProfileNode extends WebInspector.Object
+{
+    constructor(id, type, functionName, sourceCodeLocation, callInfo, calls, childNodes)
+    {
+        super();
+
+        childNodes = childNodes || [];
+
+        console.assert(id);
+        console.assert(!calls || calls instanceof Array);
+        console.assert(!calls || calls.length >= 1);
+        console.assert(!calls || calls.every((call) => call instanceof WebInspector.ProfileNodeCall));
+        console.assert(childNodes instanceof Array);
+        console.assert(childNodes.every((node) => node instanceof WebInspector.ProfileNode));
+
+        this._id = id;
+        this._type = type || WebInspector.ProfileNode.Type.Function;
+        this._functionName = functionName || null;
+        this._sourceCodeLocation = sourceCodeLocation || null;
+        this._calls = calls || null;
+        this._callInfo = callInfo || null;
+        this._childNodes = childNodes;
+        this._parentNode = null;
+        this._previousSibling = null;
+        this._nextSibling = null;
+        this._computedTotalTimes = false;
+
+        if (this._callInfo) {
+            this._startTime = this._callInfo.startTime;
+            this._endTime = this._callInfo.endTime;
+            this._totalTime = this._callInfo.totalTime;
+            this._callCount = this._callInfo.callCount;
+        }
+
+        for (var i = 0; i < this._childNodes.length; ++i)
+            this._childNodes[i].establishRelationships(this, this._childNodes[i - 1], this._childNodes[i + 1]);
+
+        if (this._calls) {
+            for (var i = 0; i < this._calls.length; ++i)
+                this._calls[i].establishRelationships(this, this._calls[i - 1], this._calls[i + 1]);
+        }
+    }
+
+    // Public
+
+    get id()
+    {
+        return this._id;
+    }
+
+    get type()
+    {
+        return this._type;
+    }
+
+    get functionName()
+    {
+        return this._functionName;
+    }
+
+    get sourceCodeLocation()
+    {
+        return this._sourceCodeLocation;
+    }
+
+    get startTime()
+    {
+        if (this._startTime === undefined)
+            this._startTime = Math.max(0, this._calls[0].startTime);
+        return this._startTime;
+    }
+
+    get endTime()
+    {
+        if (this._endTime === undefined)
+            this._endTime = Math.min(this._calls.lastValue.endTime, Infinity);
+        return this._endTime;
+    }
+
+    get selfTime()
+    {
+        this._computeTotalTimesIfNeeded();
+        return this._selfTime;
+    }
+
+    get totalTime()
+    {
+        this._computeTotalTimesIfNeeded();
+        return this._totalTime;
+    }
+
+    get callInfo()
+    {
+        return this._callInfo;
+    }
+
+    get calls()
+    {
+        return this._calls;
+    }
+
+    get previousSibling()
+    {
+        return this._previousSibling;
+    }
+
+    get nextSibling()
+    {
+        return this._nextSibling;
+    }
+
+    get parentNode()
+    {
+        return this._parentNode;
+    }
+
+    get childNodes()
+    {
+        return this._childNodes;
+    }
+
+    computeCallInfoForTimeRange(rangeStartTime, rangeEndTime)
+    {
+        console.assert(typeof rangeStartTime === "number");
+        console.assert(typeof rangeEndTime === "number");
+
+        // With aggregate call info we can't accurately partition self/total/average time
+        // in partial ranges because we don't know exactly when each call started. So we
+        // always return the entire range.
+        if (this._callInfo) {
+            if (this._selfTime === undefined) {
+                var childNodesTotalTime = 0;
+                for (var childNode of this._childNodes)
+                    childNodesTotalTime += childNode.totalTime;
+                this._selfTime = this._totalTime - childNodesTotalTime;
+                // selfTime can negative or very close to zero due to floating point error.
+                // Since we show at most four decimal places, treat anything less as zero.
+                if (this._selfTime < 0.0001)
+                    this._selfTime = 0.0;
+            }
+
+            return {
+                callCount: this._callCount,
+                startTime: this._startTime,
+                endTime: this._endTime,
+                selfTime: this._selfTime,
+                totalTime: this._totalTime,
+                averageTime: (this._selfTime / this._callCount),
+            };
+        }
+
+        // COMPATIBILITY (iOS 8): Profiles included per-call information and can be finely partitioned.
+        // Compute that below by iterating over all the calls / children for the time range.
+
+        var recordCallCount = true;
+        var callCount = 0;
+
+        function totalTimeInRange(previousValue, call)
+        {
+            if (rangeStartTime > call.endTime || rangeEndTime < call.startTime)
+                return previousValue;
+
+            if (recordCallCount)
+                ++callCount;
+
+            return previousValue + Math.min(call.endTime, rangeEndTime) - Math.max(rangeStartTime, call.startTime);
+        }
+
+        var startTime = Math.max(rangeStartTime, this._calls[0].startTime);
+        var endTime = Math.min(this._calls.lastValue.endTime, rangeEndTime);
+        var totalTime = this._calls.reduce(totalTimeInRange, 0);
+
+        recordCallCount = false;
+
+        var childNodesTotalTime = 0;
+        for (var childNode of this._childNodes)
+            childNodesTotalTime += childNode.calls.reduce(totalTimeInRange, 0);
+
+        var selfTime = totalTime - childNodesTotalTime;
+        var averageTime = selfTime / callCount;
+
+        return {startTime, endTime, totalTime, selfTime, callCount, averageTime};
+    }
+
+    traverseNextProfileNode(stayWithin)
+    {
+        var profileNode = this._childNodes[0];
+        if (profileNode)
+            return profileNode;
+
+        if (this === stayWithin)
+            return null;
+
+        profileNode = this._nextSibling;
+        if (profileNode)
+            return profileNode;
+
+        profileNode = this;
+        while (profileNode && !profileNode.nextSibling && profileNode.parentNode !== stayWithin)
+            profileNode = profileNode.parentNode;
+
+        if (!profileNode)
+            return null;
+
+        return profileNode.nextSibling;
+    }
+
+    saveIdentityToCookie(cookie)
+    {
+        cookie[WebInspector.ProfileNode.TypeCookieKey] = this._type || null;
+        cookie[WebInspector.ProfileNode.FunctionNameCookieKey] = this._functionName || null;
+        cookie[WebInspector.ProfileNode.SourceCodeURLCookieKey] = this._sourceCodeLocation ? this._sourceCodeLocation.sourceCode.url ? this._sourceCodeLocation.sourceCode.url.hash : null : null;
+        cookie[WebInspector.ProfileNode.SourceCodeLocationLineCookieKey] = this._sourceCodeLocation ? this._sourceCodeLocation.lineNumber : null;
+        cookie[WebInspector.ProfileNode.SourceCodeLocationColumnCookieKey] = this._sourceCodeLocation ? this._sourceCodeLocation.columnNumber : null;
+    }
+
+    // Protected
+
+    establishRelationships(parentNode, previousSibling, nextSibling)
+    {
+        this._parentNode = parentNode || null;
+        this._previousSibling = previousSibling || null;
+        this._nextSibling = nextSibling || null;
+    }
+
+    // Private
+
+    _computeTotalTimesIfNeeded()
+    {
+        if (this._computedTotalTimes)
+            return;
+
+        this._computedTotalTimes = true;
+
+        var info = this.computeCallInfoForTimeRange(0, Infinity);
+        this._startTime = info.startTime;
+        this._endTime = info.endTime;
+        this._selfTime = info.selfTime;
+        this._totalTime = info.totalTime;
+    }
+};
+
+WebInspector.ProfileNode.Type = {
+    Function: "profile-node-type-function",
+    Program: "profile-node-type-program"
+};
+
+WebInspector.ProfileNode.TypeIdentifier = "profile-node";
+WebInspector.ProfileNode.TypeCookieKey = "profile-node-type";
+WebInspector.ProfileNode.FunctionNameCookieKey = "profile-node-function-name";
+WebInspector.ProfileNode.SourceCodeURLCookieKey = "profile-node-source-code-url";
+WebInspector.ProfileNode.SourceCodeLocationLineCookieKey = "profile-node-source-code-location-line";
+WebInspector.ProfileNode.SourceCodeLocationColumnCookieKey = "profile-node-source-code-location-column";