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

Source/bindings/tests/results/V8TestInterface2.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 "V8TestInterface2.h"
 
 #include "RuntimeEnabledFeatures.h"
@@ skipping 38 matching lines @@
 template <typename T> void V8_USE(T) { }
 
 static void itemMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     ExceptionState exceptionState(ExceptionState::ExecutionContext, "item", "TestInterface2", info.Holder(), info.GetIsolate());
     if (UNLIKELY(info.Length() < 1)) {
         throwMinimumArityTypeError(exceptionState, 1, info.Length());
         return;
     }
     TestInterface2* impl = V8TestInterface2::toNative(info.Holder());
-    TONATIVE_VOID_EXCEPTIONSTATE(unsigned, index, toUInt32(info[0], exceptionState), exceptionState);
+    unsigned index;
+    {
+        v8::TryCatch block;
+        TONATIVE_VOID_EXCEPTIONSTATE_INTERNAL(index, toUInt32(info[0], exceptionState), exceptionState);
+    }
     RefPtr<TestInterfaceEmpty> result = impl->item(index, exceptionState);
     if (exceptionState.throwIfNeeded())
         return;
     v8SetReturnValue(info, result.release());
 }
 
 static void itemMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestInterface2V8Internal::itemMethod(info);
     TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void setItemMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     ExceptionState exceptionState(ExceptionState::ExecutionContext, "setItem", "TestInterface2", info.Holder(), info.GetIsolate());
     if (UNLIKELY(info.Length() < 2)) {
         throwMinimumArityTypeError(exceptionState, 2, info.Length());
         return;
     }
     TestInterface2* impl = V8TestInterface2::toNative(info.Holder());
-    TONATIVE_VOID_EXCEPTIONSTATE(unsigned, index, toUInt32(info[0], exceptionState), exceptionState);
-    TOSTRING_VOID(V8StringResource<>, value, info[1]);
+    unsigned index;
+    V8StringResource<> value;
+    {
+        v8::TryCatch block;
+        TONATIVE_VOID_EXCEPTIONSTATE_INTERNAL(index, toUInt32(info[0], exceptionState), exceptionState);
+        TOSTRING_VOID_INTERNAL_RETHROW(value, info[1], block);
+    }
     String result = impl->setItem(index, value, exceptionState);
     if (exceptionState.throwIfNeeded())
         return;
     v8SetReturnValueString(info, result, info.GetIsolate());
 }
 
 static void setItemMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestInterface2V8Internal::setItemMethod(info);
     TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void deleteItemMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     ExceptionState exceptionState(ExceptionState::ExecutionContext, "deleteItem", "TestInterface2", info.Holder(), info.GetIsolate());
     if (UNLIKELY(info.Length() < 1)) {
         throwMinimumArityTypeError(exceptionState, 1, info.Length());
         return;
     }
     TestInterface2* impl = V8TestInterface2::toNative(info.Holder());
-    TONATIVE_VOID_EXCEPTIONSTATE(unsigned, index, toUInt32(info[0], exceptionState), exceptionState);
+    unsigned index;
+    {
+        v8::TryCatch block;
+        TONATIVE_VOID_EXCEPTIONSTATE_INTERNAL(index, toUInt32(info[0], exceptionState), exceptionState);
+    }
     bool result = impl->deleteItem(index, exceptionState);
     if (exceptionState.throwIfNeeded())
         return;
     v8SetReturnValueBool(info, result);
 }
 
 static void deleteItemMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestInterface2V8Internal::deleteItemMethod(info);
     TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void namedItemMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     ExceptionState exceptionState(ExceptionState::ExecutionContext, "namedItem", "TestInterface2", info.Holder(), info.GetIsolate());
     if (UNLIKELY(info.Length() < 1)) {
         throwMinimumArityTypeError(exceptionState, 1, info.Length());
         return;
     }
     TestInterface2* impl = V8TestInterface2::toNative(info.Holder());
-    TOSTRING_VOID(V8StringResource<>, name, info[0]);
+    V8StringResource<> name;
+    {
+        TOSTRING_VOID_INTERNAL(name, info[0]);
+    }
     RefPtr<TestInterfaceEmpty> result = impl->namedItem(name, exceptionState);
     if (exceptionState.throwIfNeeded())
         return;
     v8SetReturnValue(info, result.release());
 }
 
 static void namedItemMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestInterface2V8Internal::namedItemMethod(info);
     TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void setNamedItemMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     ExceptionState exceptionState(ExceptionState::ExecutionContext, "setNamedItem", "TestInterface2", info.Holder(), info.GetIsolate());
     if (UNLIKELY(info.Length() < 2)) {
         throwMinimumArityTypeError(exceptionState, 2, info.Length());
         return;
     }
     TestInterface2* impl = V8TestInterface2::toNative(info.Holder());
-    TOSTRING_VOID(V8StringResource<>, name, info[0]);
-    TOSTRING_VOID(V8StringResource<>, value, info[1]);
+    V8StringResource<> name;
+    V8StringResource<> value;
+    {
+        TOSTRING_VOID_INTERNAL(name, info[0]);
+        TOSTRING_VOID_INTERNAL(value, info[1]);
+    }
     String result = impl->setNamedItem(name, value, exceptionState);
     if (exceptionState.throwIfNeeded())
         return;
     v8SetReturnValueString(info, result, info.GetIsolate());
 }
 
 static void setNamedItemMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestInterface2V8Internal::setNamedItemMethod(info);
     TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
 static void deleteNamedItemMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     ExceptionState exceptionState(ExceptionState::ExecutionContext, "deleteNamedItem", "TestInterface2", info.Holder(), info.GetIsolate());
     if (UNLIKELY(info.Length() < 1)) {
         throwMinimumArityTypeError(exceptionState, 1, info.Length());
         return;
     }
     TestInterface2* impl = V8TestInterface2::toNative(info.Holder());
-    TOSTRING_VOID(V8StringResource<>, name, info[0]);
+    V8StringResource<> name;
+    {
+        TOSTRING_VOID_INTERNAL(name, info[0]);
+    }
     bool result = impl->deleteNamedItem(name, exceptionState);
     if (exceptionState.throwIfNeeded())
         return;
     v8SetReturnValueBool(info, result);
 }
 
 static void deleteNamedItemMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestInterface2V8Internal::deleteNamedItemMethod(info);
@@ skipping 307 matching lines @@
     fromInternalPointer(object)->deref();
 }
 
 template<>
 v8::Handle<v8::Value> toV8NoInline(TestInterface2* impl, v8::Handle<v8::Object> creationContext, v8::Isolate* isolate)
 {
     return toV8(impl, creationContext, isolate);
 }
 
 } // namespace WebCore