runtime/ErrorInstance.h

   1 /*
   2  *  Copyright (C) 1999-2000 Harri Porten (porten@kde.org)
   3  *  Copyright (C) 2008 Apple Inc. All rights reserved.
   4  *
   5  *  This library is free software; you can redistribute it and/or
   6  *  modify it under the terms of the GNU Lesser General Public
   7  *  License as published by the Free Software Foundation; either
   8  *  version 2 of the License, or (at your option) any later version.
   9  *
  10  *  This library is distributed in the hope that it will be useful,
  11  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13  *  Lesser General Public License for more details.
  14  *
  15  *  You should have received a copy of the GNU Lesser General Public
  16  *  License along with this library; if not, write to the Free Software
  17  *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
  18  *
  19  */
  20
  21 #ifndef ErrorInstance_h
  22 #define ErrorInstance_h
  23
  24 #include "JSObject.h"
  25
  26 namespace JSC {
  27
  28     class ErrorInstance : public JSNonFinalObject {
  29     public:
  30         typedef JSNonFinalObject Base;
  31
  32         static const ClassInfo s_info;
  33
  34         static Structure* createStructure(VM& vm, JSGlobalObject* globalObject, JSValue prototype)
  35         {
  36             return Structure::create(vm, globalObject, prototype, TypeInfo(ErrorInstanceType, StructureFlags), &s_info);
  37         }
  38
  39         static ErrorInstance* create(VM& vm, Structure* structure, const String& message)
  40         {
  41             ErrorInstance* instance = new (NotNull, allocateCell<ErrorInstance>(vm.heap)) ErrorInstance(vm, structure);
  42             instance->finishCreation(vm, message);
  43             return instance;
  44         }
  45
  46         static ErrorInstance* create(ExecState* exec, Structure* structure, JSValue message)
  47         {
  48             return create(exec->vm(), structure, message.isUndefined() ? String() : message.toString(exec)->value(exec));
  49         }
  50
  51         bool appendSourceToMessage() { return m_appendSourceToMessage; }
  52         void setAppendSourceToMessage() { m_appendSourceToMessage = true; }
  53         void clearAppendSourceToMessage() { m_appendSourceToMessage = false; }
  54
  55     protected:
  56         explicit ErrorInstance(VM&, Structure*);
  57
  58         void finishCreation(VM& vm, const String& message)
  59         {
  60             Base::finishCreation(vm);
  61             ASSERT(inherits(&s_info));
  62             if (!message.isNull())
  63                 putDirect(vm, vm.propertyNames->message, jsString(&vm, message), DontEnum);
  64         }
  65
  66         bool m_appendSourceToMessage;
  67     };
  68
  69 } // namespace JSC
  70
  71 #endif // ErrorInstance_h