JavaScriptCore/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, NativeErrorPrototype* nativeErrorPrototype)
  36     : InternalFunction(&exec->globalData(), structure, Identifier(exec, nativeErrorPrototype->getDirect(exec->propertyNames().name).getString(exec)))
  37     , m_errorStructure(ErrorInstance::createStructure(nativeErrorPrototype))
  38 {
  39     putDirect(exec->propertyNames().length, jsNumber(exec, 1), DontDelete | ReadOnly | DontEnum); // ECMA 15.11.7.5
  40     putDirect(exec->propertyNames().prototype, nativeErrorPrototype, DontDelete | ReadOnly | DontEnum);
  41 }
  42
  43 ErrorInstance* NativeErrorConstructor::construct(ExecState* exec, const ArgList& args)
  44 {
  45     ErrorInstance* object = new (exec) ErrorInstance(m_errorStructure);
  46     if (!args.at(0).isUndefined())
  47         object->putDirect(exec->propertyNames().message, jsString(exec, args.at(0).toString(exec)));
  48     return object;
  49 }
  50
  51 static JSObject* constructWithNativeErrorConstructor(ExecState* exec, JSObject* constructor, const ArgList& args)
  52 {
  53     return static_cast<NativeErrorConstructor*>(constructor)->construct(exec, args);
  54 }
  55
  56 ConstructType NativeErrorConstructor::getConstructData(ConstructData& constructData)
  57 {
  58     constructData.native.function = constructWithNativeErrorConstructor;
  59     return ConstructTypeHost;
  60 }
  61
  62 static JSValue JSC_HOST_CALL callNativeErrorConstructor(ExecState* exec, JSObject* constructor, JSValue, const ArgList& args)
  63 {
  64     return static_cast<NativeErrorConstructor*>(constructor)->construct(exec, args);
  65 }
  66
  67 CallType NativeErrorConstructor::getCallData(CallData& callData)
  68 {
  69     callData.native.function = callNativeErrorConstructor;
  70     return CallTypeHost;
  71 }
  72
  73 } // namespace JSC