// Copyright 2009 the V8 project authors. All rights reserved.
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
//     * Redistributions of source code must retain the above copyright
//       notice, this list of conditions and the following disclaimer.
//     * 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.
//     * Neither the name of Google Inc. nor the names of its
//       contributors may be used to endorse or promote products derived
//       from this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "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 THE COPYRIGHT
// OWNER 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
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

#ifndef V8_APIUTILS_H_
#define V8_APIUTILS_H_

namespace v8 {

class ImplementationUtilities {
 public:
  static v8::Handle<v8::Primitive> Undefined();
  static v8::Handle<v8::Primitive> Null();
  static v8::Handle<v8::Boolean> True();
  static v8::Handle<v8::Boolean> False();

  static int GetNameCount(ExtensionConfiguration* that) {
    return that->name_count_;
  }

  static const char** GetNames(ExtensionConfiguration* that) {
    return that->names_;
  }

  static v8::Arguments NewArguments(Local<Value> data,
                                    Local<Object> holder,
                                    Local<Function> callee,
                                    bool is_construct_call,
                                    void** argv, int argc) {
    return v8::Arguments(data, holder, callee, is_construct_call, argv, argc);
  }

  // Introduce an alias for the handle scope data to allow non-friends
  // to access the HandleScope data.
  typedef v8::HandleScope::Data HandleScopeData;

  static HandleScopeData* CurrentHandleScope();

#ifdef DEBUG
  static void ZapHandleRange(internal::Object** begin, internal::Object** end);
#endif
};

}  // namespace v8

#endif  // V8_APIUTILS_H_