diff -r 000000000000 -r 4f2f89ce4247 WebCore/bridge/runtime_method.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/WebCore/bridge/runtime_method.cpp	Fri Sep 17 09:02:29 2010 +0300
@@ -0,0 +1,128 @@
+/*
+ * Copyright (C) 2003, 2008 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 COMPUTER, INC. ``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 COMPUTER, INC. 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. 
+ */
+ 
+#include "config.h"
+#include "runtime_method.h"
+
+#include "JSDOMBinding.h"
+#include "JSHTMLElement.h"
+#include "JSPluginElementFunctions.h"
+#include "runtime_object.h"
+#include <runtime/Error.h>
+#include <runtime/FunctionPrototype.h>
+
+using namespace WebCore;
+
+namespace JSC {
+
+using namespace Bindings;
+
+ASSERT_CLASS_FITS_IN_CELL(RuntimeMethod);
+
+const ClassInfo RuntimeMethod::s_info = { "RuntimeMethod", &InternalFunction::info, 0, 0 };
+
+RuntimeMethod::RuntimeMethod(ExecState* exec, JSGlobalObject* globalObject, const Identifier& ident, Bindings::MethodList& m)
+    // FIXME: deprecatedGetDOMStructure uses the prototype off of the wrong global object
+    // exec-globalData() is also likely wrong.
+    // Callers will need to pass in the right global object corresponding to this native object "m".
+    : InternalFunction(&exec->globalData(), globalObject, deprecatedGetDOMStructure<RuntimeMethod>(exec), ident)
+    , _methodList(new MethodList(m))
+{
+}
+
+JSValue RuntimeMethod::lengthGetter(ExecState* exec, JSValue slotBase, const Identifier&)
+{
+    RuntimeMethod* thisObj = static_cast<RuntimeMethod*>(asObject(slotBase));
+
+    // Ick!  There may be more than one method with this name.  Arbitrarily
+    // just pick the first method.  The fundamental problem here is that 
+    // JavaScript doesn't have the notion of method overloading and
+    // Java does.
+    // FIXME: a better solution might be to give the maximum number of parameters
+    // of any method
+    return jsNumber(exec, thisObj->_methodList->at(0)->numParameters());
+}
+
+bool RuntimeMethod::getOwnPropertySlot(ExecState* exec, const Identifier& propertyName, PropertySlot &slot)
+{
+    if (propertyName == exec->propertyNames().length) {
+        slot.setCacheableCustom(this, lengthGetter);
+        return true;
+    }
+    
+    return InternalFunction::getOwnPropertySlot(exec, propertyName, slot);
+}
+
+bool RuntimeMethod::getOwnPropertyDescriptor(ExecState* exec, const Identifier& propertyName, PropertyDescriptor &descriptor)
+{
+    if (propertyName == exec->propertyNames().length) {
+        PropertySlot slot;
+        slot.setCustom(this, lengthGetter);
+        descriptor.setDescriptor(slot.getValue(exec, propertyName), ReadOnly | DontDelete | DontEnum);
+        return true;
+    }
+    
+    return InternalFunction::getOwnPropertyDescriptor(exec, propertyName, descriptor);
+}
+
+static EncodedJSValue JSC_HOST_CALL callRuntimeMethod(ExecState* exec)
+{
+    RuntimeMethod* method = static_cast<RuntimeMethod*>(exec->callee());
+
+    if (method->methods()->isEmpty())
+        return JSValue::encode(jsUndefined());
+
+    RefPtr<Instance> instance;
+
+    JSValue thisValue = exec->hostThisValue();
+    if (thisValue.inherits(&RuntimeObject::s_info)) {
+        RuntimeObject* runtimeObject = static_cast<RuntimeObject*>(asObject(thisValue));
+        instance = runtimeObject->getInternalInstance();
+        if (!instance) 
+            return JSValue::encode(RuntimeObject::throwInvalidAccessError(exec));
+    } else {
+        // Calling a runtime object of a plugin element?
+        if (thisValue.inherits(&JSHTMLElement::s_info)) {
+            HTMLElement* element = static_cast<JSHTMLElement*>(asObject(thisValue))->impl();
+            instance = pluginInstance(element);
+        }
+        if (!instance)
+            return throwVMTypeError(exec);
+    }
+    ASSERT(instance);
+
+    instance->begin();
+    JSValue result = instance->invokeMethod(exec, method);
+    instance->end();
+    return JSValue::encode(result);
+}
+
+CallType RuntimeMethod::getCallData(CallData& callData)
+{
+    callData.native.function = callRuntimeMethod;
+    return CallTypeHost;
+}
+
+}