Title: [114768] trunk/Source/WebCore
Revision
114768
Author
[email protected]
Date
2012-04-20 12:04:09 -0700 (Fri, 20 Apr 2012)

Log Message

Unreviewed, rolling out r114535.
http://trac.webkit.org/changeset/114535
https://bugs.webkit.org/show_bug.cgi?id=84475

It might have caused V8 crashes. (Requested by pfeldman_ on
#webkit).

Patch by Sheriff Bot <[email protected]> on 2012-04-20

* bindings/v8/V8IsolatedContext.cpp:
(WebCore::V8IsolatedContext::V8IsolatedContext):
* bindings/v8/V8Proxy.cpp:
(WebCore::V8Proxy::evaluateInIsolatedWorld):
(WebCore::V8Proxy::setInjectedScriptContextDebugId):
(WebCore):
* bindings/v8/V8Proxy.h:
(V8Proxy):

Modified Paths

Diff

Modified: trunk/Source/WebCore/ChangeLog (114767 => 114768)


--- trunk/Source/WebCore/ChangeLog	2012-04-20 18:46:15 UTC (rev 114767)
+++ trunk/Source/WebCore/ChangeLog	2012-04-20 19:04:09 UTC (rev 114768)
@@ -1,3 +1,21 @@
+2012-04-20  Sheriff Bot  <[email protected]>
+
+        Unreviewed, rolling out r114535.
+        http://trac.webkit.org/changeset/114535
+        https://bugs.webkit.org/show_bug.cgi?id=84475
+
+        It might have caused V8 crashes. (Requested by pfeldman_ on
+        #webkit).
+
+        * bindings/v8/V8IsolatedContext.cpp:
+        (WebCore::V8IsolatedContext::V8IsolatedContext):
+        * bindings/v8/V8Proxy.cpp:
+        (WebCore::V8Proxy::evaluateInIsolatedWorld):
+        (WebCore::V8Proxy::setInjectedScriptContextDebugId):
+        (WebCore):
+        * bindings/v8/V8Proxy.h:
+        (V8Proxy):
+
 2012-04-20  Dean Jackson  <[email protected]>
 
         -webkit-filter missing from computed style enumeration

Modified: trunk/Source/WebCore/bindings/v8/V8IsolatedContext.cpp (114767 => 114768)


--- trunk/Source/WebCore/bindings/v8/V8IsolatedContext.cpp	2012-04-20 18:46:15 UTC (rev 114767)
+++ trunk/Source/WebCore/bindings/v8/V8IsolatedContext.cpp	2012-04-20 19:04:09 UTC (rev 114768)
@@ -38,8 +38,9 @@
 #include "V8BindingPerContextData.h"
 #include "V8DOMWindow.h"
 #include "V8Proxy.h"
-#include <wtf/StringExtras.h>
 
+#include <stdio.h>
+
 namespace WebCore {
 
 V8IsolatedContext* V8IsolatedContext::isolatedContext()
@@ -54,25 +55,11 @@
     delete context;
 }
 
-static void setInjectedScriptContextDebugId(v8::Handle<v8::Context> targetContext, int debugId)
-{
-    char buffer[32];
-    if (debugId == -1)
-        snprintf(buffer, sizeof(buffer), "injected");
-    else
-        snprintf(buffer, sizeof(buffer), "injected,%d", debugId);
-    targetContext->SetData(v8::String::New(buffer));
-}
-
 V8IsolatedContext::V8IsolatedContext(V8Proxy* proxy, int extensionGroup, int worldId)
     : m_world(IsolatedWorld::create(worldId)),
       m_frame(proxy->frame())
 {
     v8::HandleScope scope;
-    v8::Handle<v8::Context> mainWorldContext = proxy->windowShell()->context();
-    if (mainWorldContext.IsEmpty())
-        return;
-
     // FIXME: We should be creating a new V8DOMWindowShell here instead of riping out the context.
     m_context = SharedPersistent<v8::Context>::create(proxy->windowShell()->createNewContext(v8::Handle<v8::Object>(), extensionGroup, m_world->id()));
     if (m_context->get().IsEmpty())
@@ -81,9 +68,6 @@
     // Run code in the new context.
     v8::Context::Scope contextScope(m_context->get());
 
-    // Setup context id for JS debugger.
-    setInjectedScriptContextDebugId(m_context->get(), proxy->contextDebugId(mainWorldContext));
-
     getGlobalObject(m_context->get())->SetPointerInInternalField(V8DOMWindow::enteredIsolatedWorldIndex, this);
 
     m_perContextData = V8BindingPerContextData::create(m_context->get());

Modified: trunk/Source/WebCore/bindings/v8/V8Proxy.cpp (114767 => 114768)


--- trunk/Source/WebCore/bindings/v8/V8Proxy.cpp	2012-04-20 18:46:15 UTC (rev 114767)
+++ trunk/Source/WebCore/bindings/v8/V8Proxy.cpp	2012-04-20 19:04:09 UTC (rev 114768)
@@ -239,6 +239,13 @@
 
             // FIXME: We should change this to using window shells to match JSC.
             m_isolatedWorlds.set(worldID, isolatedContext);
+
+            // Setup context id for JS debugger.
+            if (!setInjectedScriptContextDebugId(isolatedContext->context())) {
+                m_isolatedWorlds.take(worldID);
+                delete isolatedContext;
+                return;
+            }
         }
         
         IsolatedWorldSecurityOriginMap::iterator securityOriginIter = m_isolatedWorldSecurityOrigins.find(worldID);
@@ -271,6 +278,25 @@
         iter->second->setSecurityOrigin(securityOrigin);
 }
 
+bool V8Proxy::setInjectedScriptContextDebugId(v8::Handle<v8::Context> targetContext)
+{
+    // Setup context id for JS debugger.
+    v8::Context::Scope contextScope(targetContext);
+    v8::Handle<v8::Context> context = windowShell()->context();
+    if (context.IsEmpty())
+        return false;
+    int debugId = contextDebugId(context);
+
+    char buffer[32];
+    if (debugId == -1)
+        snprintf(buffer, sizeof(buffer), "injected");
+    else
+        snprintf(buffer, sizeof(buffer), "injected,%d", debugId);
+    targetContext->SetData(v8::String::New(buffer));
+
+    return true;
+}
+
 PassOwnPtr<v8::ScriptData> V8Proxy::precompileScript(v8::Handle<v8::String> code, CachedScript* cachedScript)
 {
     // A pseudo-randomly chosen ID used to store and retrieve V8 ScriptData from

Modified: trunk/Source/WebCore/bindings/v8/V8Proxy.h (114767 => 114768)


--- trunk/Source/WebCore/bindings/v8/V8Proxy.h	2012-04-20 18:46:15 UTC (rev 114767)
+++ trunk/Source/WebCore/bindings/v8/V8Proxy.h	2012-04-20 19:04:09 UTC (rev 114768)
@@ -272,6 +272,9 @@
 
         PassOwnPtr<v8::ScriptData> precompileScript(v8::Handle<v8::String>, CachedScript*);
 
+        // Returns false when we're out of memory in V8.
+        bool setInjectedScriptContextDebugId(v8::Handle<v8::Context> targetContext);
+
         static const char* rangeExceptionName(int exceptionCode);
         static const char* eventExceptionName(int exceptionCode);
         static const char* xmlHttpRequestExceptionName(int exceptionCode);
_______________________________________________
webkit-changes mailing list
[email protected]
http://lists.webkit.org/mailman/listinfo.cgi/webkit-changes

Reply via email to