Changeset 23538 in webkit for trunk/JavaScriptCore/bindings/runtime_method.cpp

Timestamp:

Jun 14, 2007, 2:43:03 PM (18 years ago)

Author:

andersca

Message:

JavaScriptCore:

Reviewed by Darin.

<rdar://problem/5103077>
Crash at _NPN_ReleaseObject when quitting page at ​http://eshop.macsales.com/shop/ModBook

<rdar://problem/5183692>
​http://bugs.webkit.org/show_bug.cgi?id=13547
REGRESSION: Crash in _NPN_ReleaseObject when closing Safari on nba.com (13547)

<rdar://problem/5261499>
CrashTracer: [USER] 75 crashes in Safari at com.apple.JavaScriptCore: KJS::Bindings::CInstance::~CInstance + 40

Have the root object track all live instances of RuntimeObjectImp. When invalidating
the root object, also invalidate all live runtime objects by zeroing out their instance ivar.
This prevents instances from outliving their plug-ins which lead to crashes.

• bindings/c/c_utility.cpp: (KJS::Bindings::convertValueToNPVariant):
• bindings/jni/jni_jsobject.cpp: (JavaJSObject::convertValueToJObject):
• bindings/jni/jni_utility.cpp: (KJS::Bindings::convertValueToJValue):
• bindings/objc/objc_runtime.mm: (ObjcFallbackObjectImp::callAsFunction):
• bindings/runtime_array.cpp: (RuntimeArray::RuntimeArray):
• bindings/runtime_array.h: (KJS::RuntimeArray::getConcreteArray):
• bindings/runtime_method.cpp: (RuntimeMethod::callAsFunction):
• bindings/runtime_method.h:
• bindings/runtime_object.cpp: (RuntimeObjectImp::RuntimeObjectImp): (RuntimeObjectImp::~RuntimeObjectImp): (RuntimeObjectImp::invalidate): (RuntimeObjectImp::fallbackObjectGetter): (RuntimeObjectImp::fieldGetter): (RuntimeObjectImp::methodGetter): (RuntimeObjectImp::getOwnPropertySlot): (RuntimeObjectImp::put): (RuntimeObjectImp::canPut): (RuntimeObjectImp::defaultValue): (RuntimeObjectImp::implementsCall): (RuntimeObjectImp::callAsFunction): (RuntimeObjectImp::getPropertyNames): (RuntimeObjectImp::throwInvalidAccessError):
• bindings/runtime_object.h:
• bindings/runtime_root.cpp: (KJS::Bindings::RootObject::invalidate): (KJS::Bindings::RootObject::addRuntimeObject): (KJS::Bindings::RootObject::removeRuntimeObject):
• bindings/runtime_root.h:

LayoutTests:

Reviewed by Darin.

Add test that manipulates plug-in script objects after the plug-in has been destroyed.

• plugins/netscape-destroy-plugin-script-objects-expected.txt: Added.
• plugins/netscape-destroy-plugin-script-objects.html: Added.

File:

• trunk/JavaScriptCore/bindings/runtime_method.cpp (modified) (2 diffs)

trunk/JavaScriptCore/bindings/runtime_method.cpp

@@ -37 +37 @@
     : InternalFunctionImp (static_cast<FunctionPrototype*>(exec->lexicalInterpreter()->builtinFunctionPrototype()), ident)
     , _methodList(new MethodList(m))
-{
-}
-
-RuntimeMethod::~RuntimeMethod()
 {
 }
@@ -88 +84 @@
 
     Instance *instance = imp->getInternalInstance();
+    if (!instance) 
+        return RuntimeObjectImp::throwInvalidAccessError(exec);
+        
     instance->begin();
     JSValue *aValue = instance->invokeMethod(exec, *_methodList, args);