runtime/NativeErrorConstructor.cpp

   1 /*
   2  *  Copyright (C) 1999-2000 Harri Porten (porten@kde.org)
   3  *  Copyright (C) 2003, 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 #include "config.h"
  22 #include "NativeErrorConstructor.h"
  23
  24 #include "ErrorInstance.h"
  25 #include "JSFunction.h"
  26 #include "JSString.h"
  27 #include "NativeErrorPrototype.h"
  28
  29 namespace JSC {
  30
  31 ASSERT_CLASS_FITS_IN_CELL(NativeErrorConstructor);
  32
  33 const ClassInfo NativeErrorConstructor::info = { "Function", &InternalFunction::info, 0, 0 };
  34
  35 NativeErrorConstructor::NativeErrorConstructor(ExecState* exec, NonNullPassRefPtr<Structure> structure, NonNullPassRefPtr<Structure> prototypeStructure, const UString& nameAndMessage)
  36     : InternalFunction(&exec->globalData(), structure, Identifier(exec, nameAndMessage))
  37 {
  38     NativeErrorPrototype* prototype = new (exec) NativeErrorPrototype(exec, prototypeStructure, nameAndMessage, this);
  39
  40     putDirect(exec->propertyNames().length, jsNumber(exec, 1), DontDelete | ReadOnly | DontEnum); // ECMA 15.11.7.5
  41     putDirect(exec->propertyNames().prototype, prototype, DontDelete | ReadOnly | DontEnum);
  42     m_errorStructure = ErrorInstance::createStructure(prototype);
  43 }
  44
  45
  46 ErrorInstance* NativeErrorConstructor::construct(ExecState* exec, const ArgList& args)
  47 {
  48     ErrorInstance* object = new (exec) ErrorInstance(m_errorStructure);
  49     if (!args.at(0).isUndefined())
  50         object->putDirect(exec->propertyNames().message, jsString(exec, args.at(0).toString(exec)));
  51     return object;
  52 }
  53
  54 static JSObject* constructWithNativeErrorConstructor(ExecState* exec, JSObject* constructor, const ArgList& args)
  55 {
  56     return static_cast<NativeErrorConstructor*>(constructor)->construct(exec, args);
  57 }
  58
  59 ConstructType NativeErrorConstructor::getConstructData(ConstructData& constructData)
  60 {
  61     constructData.native.function = constructWithNativeErrorConstructor;
  62     return ConstructTypeHost;
  63 }
  64
  65 static JSValue JSC_HOST_CALL callNativeErrorConstructor(ExecState* exec, JSObject* constructor, JSValue, const ArgList& args)
  66 {
  67     return static_cast<NativeErrorConstructor*>(constructor)->construct(exec, args);
  68 }
  69
  70 CallType NativeErrorConstructor::getCallData(CallData& callData)
  71 {
  72     callData.native.function = callNativeErrorConstructor;
  73     return CallTypeHost;
  74 }
  75
  76 } // namespace JSC