text: // Copyright 2006-2008 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
  // 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.
  
  // The infrastructure used for (localized) message reporting in V8.
  //
  // Note: there's a big unresolved issue about ownership of the data
  // structures used by this framework.
  
  #ifndef V8_MESSAGES_H_
  #define V8_MESSAGES_H_
  
  #include "handles-inl.h"
  
  // Forward declaration of MessageLocation.
  namespace v8 {
  namespace internal {
  class MessageLocation;
  } }  // namespace v8::internal
  
  
  class V8Message {
   public:
    V8Message(char* type,
              v8::internal::Handle<v8::internal::JSArray> args,
              const v8::internal::MessageLocation* loc) :
        type_(type), args_(args), loc_(loc) { }
    char* type() const { return type_; }
    v8::internal::Handle<v8::internal::JSArray> args() const { return args_; }
    const v8::internal::MessageLocation* loc() const { return loc_; }
   private:
    char* type_;
    v8::internal::Handle<v8::internal::JSArray> const args_;
    const v8::internal::MessageLocation* loc_;
  };
  
  
  namespace v8 {
  namespace internal {
  
  struct Language;
  class SourceInfo;
  
  class MessageLocation {
   public:
    MessageLocation(Handle<Script> script,
                    int start_pos,
                    int end_pos)
        : script_(script),
          start_pos_(start_pos),
          end_pos_(end_pos) { }
    MessageLocation() : start_pos_(-1), end_pos_(-1) { }
  
    Handle<Script> script() const { return script_; }
    int start_pos() const { return start_pos_; }
    int end_pos() const { return end_pos_; }
  
   private:
    Handle<Script> script_;
    int start_pos_;
    int end_pos_;
  };
  
  
  // A message handler is a convenience interface for accessing the list
  // of message listeners registered in an environment
  class MessageHandler {
   public:
    // Returns a message object for the API to use.
    static Handle<JSMessageObject> MakeMessageObject(
        const char* type,
        MessageLocation* loc,
        Vector< Handle<Object> > args,
        Handle<String> stack_trace,
        Handle<JSArray> stack_frames);
  
    // Report a formatted message (needs JS allocation).
    static void ReportMessage(Isolate* isolate,
                              MessageLocation* loc,
                              Handle<Object> message);
  
    static void DefaultMessageReport(const MessageLocation* loc,
                                     Handle<Object> message_obj);
    static Handle<String> GetMessage(Handle<Object> data);
    static SmartArrayPointer<char> GetLocalizedMessage(Handle<Object> data);
  };
  
  } }  // namespace v8::internal
  
  #endif  // V8_MESSAGES_H_
  