Prevent calls to ReturnValue::Set with pointer-valued types.

include/v8.h

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 /** \mainpage V8 API Reference Guide
  *
  * V8 is Google's open source JavaScript engine.
  *
  * This set of documents provides reference material generated from the
  * V8 header file, include/v8.h.
@@ skipping 2411 matching lines @@
   V8_INLINE void Set(double i);
   V8_INLINE void Set(int32_t i);
   V8_INLINE void Set(uint32_t i);
   // Fast JS primitive setters
   V8_INLINE void SetNull();
   V8_INLINE void SetUndefined();
   V8_INLINE void SetEmptyString();
   // Convenience getter for Isolate
   V8_INLINE Isolate* GetIsolate();
 
+  // Pointer setter: Uncompilable to prevent inadvertent misuse.
+  template <typename S>
+  V8_INLINE void Set(S* whatever);
+
  private:
   template<class F> friend class ReturnValue;
   template<class F> friend class FunctionCallbackInfo;
   template<class F> friend class PropertyCallbackInfo;
   template<class F, class G, class H> friend class PersistentValueMap;
   V8_INLINE void SetInternal(internal::Object* value) { *value_ = value; }
   V8_INLINE internal::Object* GetDefaultValue();
   V8_INLINE explicit ReturnValue(internal::Object** slot);
   internal::Object** value_;
 };
@@ skipping 3525 matching lines @@
   *value_ = *I::GetRoot(GetIsolate(), I::kEmptyStringRootIndex);
 }
 
 template<typename T>
 Isolate* ReturnValue<T>::GetIsolate() {
   // Isolate is always the pointer below the default value on the stack.
   return *reinterpret_cast<Isolate**>(&value_[-2]);
 }
 
 template<typename T>
+template<typename S>
+void ReturnValue<T>::Set(S* whatever) {
+  // Uncompilable to prevent inadvertent misuse.
+  TYPE_CHECK(S*, Primitive);
+}
+
+template<typename T>
 internal::Object* ReturnValue<T>::GetDefaultValue() {
   // Default value is always the pointer below value_ on the stack.
   return value_[-1];
 }
 
 
 template<typename T>
 FunctionCallbackInfo<T>::FunctionCallbackInfo(internal::Object** implicit_args,
                                               internal::Object** values,
                                               int length,
@@ skipping 636 matching lines @@
  */
 
 
 }  // namespace v8
 
 
 #undef TYPE_CHECK
 
 
 #endif  // V8_H_