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<dt>Revision</dt> <dd><a href="http://trac.webkit.org/projects/webkit/changeset/188403">188403</a></dd>
<dt>Author</dt> <dd>commit-queue@webkit.org</dd>
<dt>Date</dt> <dd>2015-08-13 14:30:13 -0700 (Thu, 13 Aug 2015)</dd>
</dl>
<h3>Log Message</h3>
<pre>Web Inspector: A {Map, WeakMap, Set, WeakSet} object contains itself will hang the console
https://bugs.webkit.org/show_bug.cgi?id=147966
Patch by Joseph Pecoraro <pecoraro@apple.com> on 2015-08-13
Reviewed by Timothy Hatcher.
Source/JavaScriptCore:
* inspector/InjectedScriptSource.js:
(InjectedScript.prototype._initialPreview):
Renamed to initial preview. This is not a complete preview for
this object, and it needs some processing in order to be a
complete accurate preview.
(InjectedScript.RemoteObject.prototype._emptyPreview):
This attempts to be an accurate empty preview for the given object.
For types with entries, it adds an empty entries list and updates
the overflow and lossless properties.
(InjectedScript.RemoteObject.prototype._createObjectPreviewForValue):
Take a generatePreview parameter to generate a full preview or empty preview.
(InjectedScript.RemoteObject.prototype._appendPropertyPreviews):
(InjectedScript.RemoteObject.prototype._appendEntryPreviews):
(InjectedScript.RemoteObject.prototype._isPreviewableObject):
Take care to avoid cycles.
Source/WebInspectorUI:
* UserInterface/Views/ObjectPreviewView.js:
(WebInspector.ObjectPreviewView.prototype._appendEntryPreviews):
(WebInspector.ObjectPreviewView.prototype._appendPropertyPreviews):
For empty overflow previews, don't show ", ..." if we didn't show any
values; just show "..." in these cases.
LayoutTests:
* inspector/model/remote-object.html:
* inspector/model/remote-object-expected.txt:
Add tests for a cylic array, set, and map.</pre>
<h3>Modified Paths</h3>
<ul>
<li><a href="#trunkLayoutTestsChangeLog">trunk/LayoutTests/ChangeLog</a></li>
<li><a href="#trunkLayoutTestsinspectormodelremoteobjectexpectedtxt">trunk/LayoutTests/inspector/model/remote-object-expected.txt</a></li>
<li><a href="#trunkLayoutTestsinspectormodelremoteobjecthtml">trunk/LayoutTests/inspector/model/remote-object.html</a></li>
<li><a href="#trunkSourceJavaScriptCoreChangeLog">trunk/Source/JavaScriptCore/ChangeLog</a></li>
<li><a href="#trunkSourceJavaScriptCoreinspectorInjectedScriptSourcejs">trunk/Source/JavaScriptCore/inspector/InjectedScriptSource.js</a></li>
<li><a href="#trunkSourceWebInspectorUIChangeLog">trunk/Source/WebInspectorUI/ChangeLog</a></li>
<li><a href="#trunkSourceWebInspectorUIUserInterfaceViewsObjectPreviewViewjs">trunk/Source/WebInspectorUI/UserInterface/Views/ObjectPreviewView.js</a></li>
</ul>
</div>
<div id="patch">
<h3>Diff</h3>
<a id="trunkLayoutTestsChangeLog"></a>
<div class="modfile"><h4>Modified: trunk/LayoutTests/ChangeLog (188402 => 188403)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/LayoutTests/ChangeLog        2015-08-13 21:17:30 UTC (rev 188402)
+++ trunk/LayoutTests/ChangeLog        2015-08-13 21:30:13 UTC (rev 188403)
</span><span class="lines">@@ -1,3 +1,14 @@
</span><ins>+2015-08-13 Joseph Pecoraro <pecoraro@apple.com>
+
+ Web Inspector: A {Map, WeakMap, Set, WeakSet} object contains itself will hang the console
+ https://bugs.webkit.org/show_bug.cgi?id=147966
+
+ Reviewed by Timothy Hatcher.
+
+ * inspector/model/remote-object.html:
+ * inspector/model/remote-object-expected.txt:
+ Add tests for a cylic array, set, and map.
+
</ins><span class="cx"> 2015-08-13 Eric Carlson <eric.carlson@apple.com>
</span><span class="cx">
</span><span class="cx"> Don't short circuit seeking
</span></span></pre></div>
<a id="trunkLayoutTestsinspectormodelremoteobjectexpectedtxt"></a>
<div class="modfile"><h4>Modified: trunk/LayoutTests/inspector/model/remote-object-expected.txt (188402 => 188403)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/LayoutTests/inspector/model/remote-object-expected.txt        2015-08-13 21:17:30 UTC (rev 188402)
+++ trunk/LayoutTests/inspector/model/remote-object-expected.txt        2015-08-13 21:30:13 UTC (rev 188403)
</span><span class="lines">@@ -843,6 +843,33 @@
</span><span class="cx"> }
</span><span class="cx">
</span><span class="cx"> -----------------------------------------------------
</span><ins>+EXPRESSION: arr = []; arr[0] = arr; arr
+{
+ "_type": "object",
+ "_subtype": "array",
+ "_objectId": "<filtered>",
+ "_description": "Array",
+ "_size": 1,
+ "_preview": {
+ "_type": "object",
+ "_subtype": "array",
+ "_description": "Array",
+ "_lossless": false,
+ "_overflow": false,
+ "_size": 1,
+ "_properties": [
+ {
+ "_name": "0",
+ "_type": "object",
+ "_subtype": "array",
+ "_value": "Array"
+ }
+ ],
+ "_entries": null
+ }
+}
+
+-----------------------------------------------------
</ins><span class="cx"> EXPRESSION: arr = []; arr.length = 100; arr
</span><span class="cx"> {
</span><span class="cx"> "_type": "object",
</span><span class="lines">@@ -2260,7 +2287,7 @@
</span><span class="cx"> "_type": "object",
</span><span class="cx"> "_subtype": "map",
</span><span class="cx"> "_description": "Map",
</span><del>- "_lossless": true,
</del><ins>+ "_lossless": false,
</ins><span class="cx"> "_overflow": false,
</span><span class="cx"> "_size": 2,
</span><span class="cx"> "_properties": [],
</span><span class="lines">@@ -2469,6 +2496,49 @@
</span><span class="cx"> }
</span><span class="cx">
</span><span class="cx"> -----------------------------------------------------
</span><ins>+EXPRESSION: map = new Map; map.set(map, map); map
+{
+ "_type": "object",
+ "_subtype": "map",
+ "_objectId": "<filtered>",
+ "_description": "Map",
+ "_size": 1,
+ "_preview": {
+ "_type": "object",
+ "_subtype": "map",
+ "_description": "Map",
+ "_lossless": false,
+ "_overflow": false,
+ "_size": 1,
+ "_properties": [],
+ "_entries": [
+ {
+ "_key": {
+ "_type": "object",
+ "_subtype": "map",
+ "_description": "Map",
+ "_lossless": false,
+ "_overflow": true,
+ "_size": 1,
+ "_properties": [],
+ "_entries": []
+ },
+ "_value": {
+ "_type": "object",
+ "_subtype": "map",
+ "_description": "Map",
+ "_lossless": false,
+ "_overflow": true,
+ "_size": 1,
+ "_properties": [],
+ "_entries": []
+ }
+ }
+ ]
+ }
+}
+
+-----------------------------------------------------
</ins><span class="cx"> EXPRESSION: map = new WeakMap; strongKey = {id:1}; map.set(strongKey, [1,2]); map
</span><span class="cx"> {
</span><span class="cx"> "_type": "object",
</span><span class="lines">@@ -2609,7 +2679,7 @@
</span><span class="cx"> "_type": "object",
</span><span class="cx"> "_subtype": "set",
</span><span class="cx"> "_description": "Set",
</span><del>- "_lossless": true,
</del><ins>+ "_lossless": false,
</ins><span class="cx"> "_overflow": false,
</span><span class="cx"> "_size": 3,
</span><span class="cx"> "_properties": [],
</span><span class="lines">@@ -2766,6 +2836,39 @@
</span><span class="cx"> }
</span><span class="cx">
</span><span class="cx"> -----------------------------------------------------
</span><ins>+EXPRESSION: set = new Set; set.add(set); set
+{
+ "_type": "object",
+ "_subtype": "set",
+ "_objectId": "<filtered>",
+ "_description": "Set",
+ "_size": 1,
+ "_preview": {
+ "_type": "object",
+ "_subtype": "set",
+ "_description": "Set",
+ "_lossless": false,
+ "_overflow": false,
+ "_size": 1,
+ "_properties": [],
+ "_entries": [
+ {
+ "_value": {
+ "_type": "object",
+ "_subtype": "set",
+ "_description": "Set",
+ "_lossless": false,
+ "_overflow": true,
+ "_size": 1,
+ "_properties": [],
+ "_entries": []
+ }
+ }
+ ]
+ }
+}
+
+-----------------------------------------------------
</ins><span class="cx"> EXPRESSION: set = new WeakSet; strongKey = {id:1}; set.add(strongKey); set
</span><span class="cx"> {
</span><span class="cx"> "_type": "object",
</span></span></pre></div>
<a id="trunkLayoutTestsinspectormodelremoteobjecthtml"></a>
<div class="modfile"><h4>Modified: trunk/LayoutTests/inspector/model/remote-object.html (188402 => 188403)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/LayoutTests/inspector/model/remote-object.html        2015-08-13 21:17:30 UTC (rev 188402)
+++ trunk/LayoutTests/inspector/model/remote-object.html        2015-08-13 21:30:13 UTC (rev 188403)
</span><span class="lines">@@ -79,6 +79,7 @@
</span><span class="cx"> {expression: "[[undefined]]"},
</span><span class="cx"> {expression: "[{a:1}, {b:2}, {c:2}]"},
</span><span class="cx"> {expression: "[[{a:1}, {b:2}, {c:2}]]"},
</span><ins>+ {expression: "arr = []; arr[0] = arr; arr"}, // cyclic
</ins><span class="cx"> {expression: "arr = []; arr.length = 100; arr"}, // 100 empty elements
</span><span class="cx"> {expression: "arr = []; arr.length = 100; arr.fill(1)"}, // 100 full elements
</span><span class="cx"> {expression: "arr = []; arr.length = 100; arr[10] = 1; arr"}, // sparse
</span><span class="lines">@@ -94,7 +95,7 @@
</span><span class="cx"> {expression: "({a: 1})"},
</span><span class="cx"> {expression: "({a: 1, b: 0, c: -0})"},
</span><span class="cx"> {expression: "({a: 1, b: \"string\", c: /regex/, d: Symbol('sym')})"},
</span><del>- {expression: "o = {a:1}; o.b = o; o"}, // Cyclic.
</del><ins>+ {expression: "o = {a:1}; o.b = o; o"}, // cyclic
</ins><span class="cx"> {expression: "({a:function a(){}, b:function b(){}, get getter(){}, set setter(v){}})"},
</span><span class="cx"> {expression: "function Foo() {}; new Foo"},
</span><span class="cx"> {expression: "var Foo2 = function() {}; new Foo2"},
</span><span class="lines">@@ -132,6 +133,7 @@
</span><span class="cx"> {expression: "map = new Map; map.set(1, 2); map.set('key', 'value'); map"},
</span><span class="cx"> {expression: "map = new Map; map.set({a:1}, {b:2}); map.set(document.body, [1,2]); map"},
</span><span class="cx"> {expression: "map = new Map; for (var i = 0; i <= 100; i++) map.set(i, i); map"},
</span><ins>+ {expression: "map = new Map; map.set(map, map); map"},
</ins><span class="cx"> {expression: "map = new WeakMap; strongKey = {id:1}; map.set(strongKey, [1,2]); map"},
</span><span class="cx">
</span><span class="cx"> // Set / WeakSet
</span><span class="lines">@@ -139,6 +141,7 @@
</span><span class="cx"> {expression: "set = new Set; set.add(1); set.add(2); set.add('key'); set"},
</span><span class="cx"> {expression: "set = new Set; set.add({a:1}); set.add(document.body); set.add([1,2]); set"},
</span><span class="cx"> {expression: "set = new Set; for (var i = 0; i <= 100; i++) set.add(i); set"},
</span><ins>+ {expression: "set = new Set; set.add(set); set"},
</ins><span class="cx"> {expression: "set = new WeakSet; strongKey = {id:1}; set.add(strongKey); set"},
</span><span class="cx">
</span><span class="cx"> // Iterators
</span></span></pre></div>
<a id="trunkSourceJavaScriptCoreChangeLog"></a>
<div class="modfile"><h4>Modified: trunk/Source/JavaScriptCore/ChangeLog (188402 => 188403)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/JavaScriptCore/ChangeLog        2015-08-13 21:17:30 UTC (rev 188402)
+++ trunk/Source/JavaScriptCore/ChangeLog        2015-08-13 21:30:13 UTC (rev 188403)
</span><span class="lines">@@ -1,3 +1,29 @@
</span><ins>+2015-08-13 Joseph Pecoraro <pecoraro@apple.com>
+
+ Web Inspector: A {Map, WeakMap, Set, WeakSet} object contains itself will hang the console
+ https://bugs.webkit.org/show_bug.cgi?id=147966
+
+ Reviewed by Timothy Hatcher.
+
+ * inspector/InjectedScriptSource.js:
+ (InjectedScript.prototype._initialPreview):
+ Renamed to initial preview. This is not a complete preview for
+ this object, and it needs some processing in order to be a
+ complete accurate preview.
+
+ (InjectedScript.RemoteObject.prototype._emptyPreview):
+ This attempts to be an accurate empty preview for the given object.
+ For types with entries, it adds an empty entries list and updates
+ the overflow and lossless properties.
+
+ (InjectedScript.RemoteObject.prototype._createObjectPreviewForValue):
+ Take a generatePreview parameter to generate a full preview or empty preview.
+
+ (InjectedScript.RemoteObject.prototype._appendPropertyPreviews):
+ (InjectedScript.RemoteObject.prototype._appendEntryPreviews):
+ (InjectedScript.RemoteObject.prototype._isPreviewableObject):
+ Take care to avoid cycles.
+
</ins><span class="cx"> 2015-08-13 Geoffrey Garen <ggaren@apple.com>
</span><span class="cx">
</span><span class="cx"> Periodic code deletion should delete RegExp code
</span></span></pre></div>
<a id="trunkSourceJavaScriptCoreinspectorInjectedScriptSourcejs"></a>
<div class="modfile"><h4>Modified: trunk/Source/JavaScriptCore/inspector/InjectedScriptSource.js (188402 => 188403)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/JavaScriptCore/inspector/InjectedScriptSource.js        2015-08-13 21:17:30 UTC (rev 188402)
+++ trunk/Source/JavaScriptCore/inspector/InjectedScriptSource.js        2015-08-13 21:30:13 UTC (rev 188403)
</span><span class="lines">@@ -1018,7 +1018,7 @@
</span><span class="cx"> }
</span><span class="cx">
</span><span class="cx"> InjectedScript.RemoteObject.prototype = {
</span><del>- _emptyPreview: function()
</del><ins>+ _initialPreview: function()
</ins><span class="cx"> {
</span><span class="cx"> var preview = {
</span><span class="cx"> type: this.type,
</span><span class="lines">@@ -1040,9 +1040,24 @@
</span><span class="cx"> return preview;
</span><span class="cx"> },
</span><span class="cx">
</span><del>- _createObjectPreviewForValue: function(value)
</del><ins>+ _emptyPreview: function()
</ins><span class="cx"> {
</span><del>- var remoteObject = new InjectedScript.RemoteObject(value, undefined, false, true, undefined);
</del><ins>+ var preview = this._initialPreview();
+
+ if (this.subtype === "map" || this.subtype === "set" || this.subtype === "weakmap" || this.subtype === "weakset" || this.subtype === "iterator") {
+ if (this.size) {
+ preview.entries = [];
+ preview.lossless = false;
+ preview.overflow = true;
+ }
+ }
+
+ return preview;
+ },
+
+ _createObjectPreviewForValue: function(value, generatePreview)
+ {
+ var remoteObject = new InjectedScript.RemoteObject(value, undefined, false, generatePreview, undefined);
</ins><span class="cx"> if (remoteObject.objectId)
</span><span class="cx"> injectedScript.releaseObject(remoteObject.objectId);
</span><span class="cx"> if (remoteObject.classPrototype && remoteObject.classPrototype.objectId)
</span><span class="lines">@@ -1053,7 +1068,7 @@
</span><span class="cx">
</span><span class="cx"> _generatePreview: function(object, firstLevelKeys, secondLevelKeys)
</span><span class="cx"> {
</span><del>- var preview = this._emptyPreview();
</del><ins>+ var preview = this._initialPreview();
</ins><span class="cx">
</span><span class="cx"> // Primitives just have a value.
</span><span class="cx"> if (this.type !== "object")
</span><span class="lines">@@ -1077,7 +1092,7 @@
</span><span class="cx"> // Internal Properties.
</span><span class="cx"> var internalPropertyDescriptors = injectedScript._internalPropertyDescriptors(object, true);
</span><span class="cx"> if (internalPropertyDescriptors) {
</span><del>- this._appendPropertyPreviews(preview, internalPropertyDescriptors, true, propertiesThreshold, firstLevelKeys, secondLevelKeys);
</del><ins>+ this._appendPropertyPreviews(object, preview, internalPropertyDescriptors, true, propertiesThreshold, firstLevelKeys, secondLevelKeys);
</ins><span class="cx"> if (propertiesThreshold.indexes < 0 || propertiesThreshold.properties < 0)
</span><span class="cx"> return preview;
</span><span class="cx"> }
</span><span class="lines">@@ -1087,7 +1102,7 @@
</span><span class="cx">
</span><span class="cx"> // Properties.
</span><span class="cx"> var descriptors = injectedScript._propertyDescriptors(object, InjectedScript.CollectionMode.AllProperties);
</span><del>- this._appendPropertyPreviews(preview, descriptors, false, propertiesThreshold, firstLevelKeys, secondLevelKeys);
</del><ins>+ this._appendPropertyPreviews(object, preview, descriptors, false, propertiesThreshold, firstLevelKeys, secondLevelKeys);
</ins><span class="cx"> if (propertiesThreshold.indexes < 0 || propertiesThreshold.properties < 0)
</span><span class="cx"> return preview;
</span><span class="cx"> } catch (e) {
</span><span class="lines">@@ -1097,7 +1112,7 @@
</span><span class="cx"> return preview;
</span><span class="cx"> },
</span><span class="cx">
</span><del>- _appendPropertyPreviews: function(preview, descriptors, internal, propertiesThreshold, firstLevelKeys, secondLevelKeys)
</del><ins>+ _appendPropertyPreviews: function(object, preview, descriptors, internal, propertiesThreshold, firstLevelKeys, secondLevelKeys)
</ins><span class="cx"> {
</span><span class="cx"> for (var descriptor of descriptors) {
</span><span class="cx"> // Seen enough.
</span><span class="lines">@@ -1180,9 +1195,9 @@
</span><span class="cx"> property.subtype = subtype;
</span><span class="cx">
</span><span class="cx"> // Second level.
</span><del>- if ((secondLevelKeys === null || secondLevelKeys) || this._isPreviewableObject(value)) {
</del><ins>+ if ((secondLevelKeys === null || secondLevelKeys) || this._isPreviewableObject(value, object)) {
</ins><span class="cx"> // FIXME: If we want secondLevelKeys filter to continue we would need some refactoring.
</span><del>- var subPreview = this._createObjectPreviewForValue(value);
</del><ins>+ var subPreview = this._createObjectPreviewForValue(value, value !== object);
</ins><span class="cx"> property.valuePreview = subPreview;
</span><span class="cx"> if (!subPreview.lossless)
</span><span class="cx"> preview.lossless = false;
</span><span class="lines">@@ -1240,17 +1255,25 @@
</span><span class="cx"> preview.lossless = false;
</span><span class="cx"> }
</span><span class="cx">
</span><ins>+ function updateMainPreview(subPreview) {
+ if (!subPreview.lossless)
+ preview.lossless = false;
+ }
+
</ins><span class="cx"> preview.entries = entries.map(function(entry) {
</span><del>- entry.value = this._createObjectPreviewForValue(entry.value);
- if ("key" in entry)
- entry.key = this._createObjectPreviewForValue(entry.key);
</del><ins>+ entry.value = this._createObjectPreviewForValue(entry.value, entry.value !== object);
+ updateMainPreview(entry.value);
+ if ("key" in entry) {
+ entry.key = this._createObjectPreviewForValue(entry.key, entry.key !== object);
+ updateMainPreview(entry.key);
+ }
</ins><span class="cx"> return entry;
</span><span class="cx"> }, this);
</span><span class="cx"> },
</span><span class="cx">
</span><del>- _isPreviewableObject: function(object)
</del><ins>+ _isPreviewableObject: function(value, object)
</ins><span class="cx"> {
</span><del>- return this._isPreviewableObjectInternal(object, new Set, 1);
</del><ins>+ return this._isPreviewableObjectInternal(value, new Set([object]), 1);
</ins><span class="cx"> },
</span><span class="cx">
</span><span class="cx"> _isPreviewableObjectInternal: function(object, knownObjects, depth)
</span></span></pre></div>
<a id="trunkSourceWebInspectorUIChangeLog"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebInspectorUI/ChangeLog (188402 => 188403)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebInspectorUI/ChangeLog        2015-08-13 21:17:30 UTC (rev 188402)
+++ trunk/Source/WebInspectorUI/ChangeLog        2015-08-13 21:30:13 UTC (rev 188403)
</span><span class="lines">@@ -1,3 +1,16 @@
</span><ins>+2015-08-13 Joseph Pecoraro <pecoraro@apple.com>
+
+ Web Inspector: A {Map, WeakMap, Set, WeakSet} object contains itself will hang the console
+ https://bugs.webkit.org/show_bug.cgi?id=147966
+
+ Reviewed by Timothy Hatcher.
+
+ * UserInterface/Views/ObjectPreviewView.js:
+ (WebInspector.ObjectPreviewView.prototype._appendEntryPreviews):
+ (WebInspector.ObjectPreviewView.prototype._appendPropertyPreviews):
+ For empty overflow previews, don't show ", ..." if we didn't show any
+ values; just show "..." in these cases.
+
</ins><span class="cx"> 2015-08-13 Matt Baker <mattbaker@apple.com>
</span><span class="cx">
</span><span class="cx"> Web Inspector: Hide child rows for filtered tasks in the Rendering Frames data grid
</span></span></pre></div>
<a id="trunkSourceWebInspectorUIUserInterfaceViewsObjectPreviewViewjs"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebInspectorUI/UserInterface/Views/ObjectPreviewView.js (188402 => 188403)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebInspectorUI/UserInterface/Views/ObjectPreviewView.js        2015-08-13 21:17:30 UTC (rev 188402)
+++ trunk/Source/WebInspectorUI/UserInterface/Views/ObjectPreviewView.js        2015-08-13 21:30:13 UTC (rev 188403)
</span><span class="lines">@@ -177,8 +177,12 @@
</span><span class="cx"> overflow = true;
</span><span class="cx"> }
</span><span class="cx">
</span><del>- if (overflow)
- element.append(", \u2026");
</del><ins>+ if (overflow) {
+ if (limit > 0)
+ element.append(", ");
+ element.append("\u2026");
+ }
+
</ins><span class="cx"> element.append(isIterator ? "]" : "}");
</span><span class="cx">
</span><span class="cx"> return lossless;
</span><span class="lines">@@ -238,8 +242,12 @@
</span><span class="cx"> overflow = true;
</span><span class="cx"> }
</span><span class="cx">
</span><del>- if (overflow)
- element.append(", \u2026");
</del><ins>+ if (overflow) {
+ if (limit > 0)
+ element.append(", ");
+ element.append("\u2026");
+ }
+
</ins><span class="cx"> element.append(isArray ? "]" : "}");
</span><span class="cx">
</span><span class="cx"> return lossless;
</span></span></pre>
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