Create fewer local v8::TryCatch objects in generated bindings code

Source/bindings/tests/results/V8TestInterfaceNode.cpp

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // This file has been auto-generated by code_generator_v8.py. DO NOT MODIFY!
 
 #include "config.h"
 #include "V8TestInterfaceNode.h"
 
 #include "HTMLNames.h"
@@ skipping 231 matching lines @@
 static void perWorldBindingsTestInterfaceEmptyMethodMethodCallbackForMainWorld(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestInterfaceNodeV8Internal::perWorldBindingsTestInterfaceEmptyMethodMethodForMainWorld(info);
     TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void perWorldBindingsTestInterfaceEmptyMethodOptionalBooleanArgMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TestInterfaceNode* impl = V8TestInterfaceNode::toNative(info.Holder());
-    if (UNLIKELY(info.Length() <= 0)) {
-        v8SetReturnValueFast(info, WTF::getPtr(impl->perWorldBindingsTestInterfaceEmptyMethodOptionalBooleanArg()), impl);
-        return;
+    bool optionalBooleanArgument;
+    {
+        v8::TryCatch block;
+        if (UNLIKELY(info.Length() <= 0)) {
+            v8SetReturnValueFast(info, WTF::getPtr(impl->perWorldBindingsTestInterfaceEmptyMethodOptionalBooleanArg()), impl);
+            return;
+        }
+        TONATIVE_VOID_INTERNAL(optionalBooleanArgument, info[0]->BooleanValue());
     }
-    TONATIVE_VOID(bool, optionalBooleanArgument, info[0]->BooleanValue());
     v8SetReturnValueFast(info, WTF::getPtr(impl->perWorldBindingsTestInterfaceEmptyMethodOptionalBooleanArg(optionalBooleanArgument)), impl);
 }
 
 static void perWorldBindingsTestInterfaceEmptyMethodOptionalBooleanArgMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestInterfaceNodeV8Internal::perWorldBindingsTestInterfaceEmptyMethodOptionalBooleanArgMethod(info);
     TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void perWorldBindingsTestInterfaceEmptyMethodOptionalBooleanArgMethodForMainWorld(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TestInterfaceNode* impl = V8TestInterfaceNode::toNative(info.Holder());
-    if (UNLIKELY(info.Length() <= 0)) {
-        v8SetReturnValueForMainWorld(info, WTF::getPtr(impl->perWorldBindingsTestInterfaceEmptyMethodOptionalBooleanArg()));
-        return;
+    bool optionalBooleanArgument;
+    {
+        v8::TryCatch block;
+        if (UNLIKELY(info.Length() <= 0)) {
+            v8SetReturnValueForMainWorld(info, WTF::getPtr(impl->perWorldBindingsTestInterfaceEmptyMethodOptionalBooleanArg()));
+            return;
+        }
+        TONATIVE_VOID_INTERNAL(optionalBooleanArgument, info[0]->BooleanValue());
     }
-    TONATIVE_VOID(bool, optionalBooleanArgument, info[0]->BooleanValue());
     v8SetReturnValueForMainWorld(info, WTF::getPtr(impl->perWorldBindingsTestInterfaceEmptyMethodOptionalBooleanArg(optionalBooleanArgument)));
 }
 
 static void perWorldBindingsTestInterfaceEmptyMethodOptionalBooleanArgMethodCallbackForMainWorld(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestInterfaceNodeV8Internal::perWorldBindingsTestInterfaceEmptyMethodOptionalBooleanArgMethodForMainWorld(info);
     TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
@@ skipping 90 matching lines @@
     fromInternalPointer(object)->deref();
 }
 
 template<>
 v8::Handle<v8::Value> toV8NoInline(TestInterfaceNode* impl, v8::Handle<v8::Object> creationContext, v8::Isolate* isolate)
 {
     return toV8(impl, creationContext, isolate);
 }
 
 } // namespace WebCore