runtime/BooleanConstructor.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 "BooleanConstructor.h"
  23
  24 #include "BooleanPrototype.h"
  25 #include "JSGlobalObject.h"
  26 #include "Operations.h"
  27
  28 namespace JSC {
  29
  30 ASSERT_HAS_TRIVIAL_DESTRUCTOR(BooleanConstructor);
  31
  32 const ClassInfo BooleanConstructor::s_info = { "Function", &Base::s_info, 0, 0, CREATE_METHOD_TABLE(BooleanConstructor) };
  33
  34 BooleanConstructor::BooleanConstructor(JSGlobalObject* globalObject, Structure* structure)
  35     : InternalFunction(globalObject, structure)
  36 {
  37 }
  38
  39 void BooleanConstructor::finishCreation(ExecState* exec, BooleanPrototype* booleanPrototype)
  40 {
  41     Base::finishCreation(exec->vm(), booleanPrototype->classInfo()->className);
  42     putDirectWithoutTransition(exec->vm(), exec->propertyNames().prototype, booleanPrototype, DontEnum | DontDelete | ReadOnly);
  43
  44     // no. of arguments for constructor
  45     putDirectWithoutTransition(exec->vm(), exec->propertyNames().length, jsNumber(1), ReadOnly | DontDelete | DontEnum);
  46 }
  47
  48 // ECMA 15.6.2
  49 JSObject* constructBoolean(ExecState* exec, const ArgList& args)
  50 {
  51     BooleanObject* obj = BooleanObject::create(exec->vm(), asInternalFunction(exec->callee())->globalObject()->booleanObjectStructure());
  52     obj->setInternalValue(exec->vm(), jsBoolean(args.at(0).toBoolean(exec)));
  53     return obj;
  54 }
  55
  56 static EncodedJSValue JSC_HOST_CALL constructWithBooleanConstructor(ExecState* exec)
  57 {
  58     ArgList args(exec);
  59     return JSValue::encode(constructBoolean(exec, args));
  60 }
  61
  62 ConstructType BooleanConstructor::getConstructData(JSCell*, ConstructData& constructData)
  63 {
  64     constructData.native.function = constructWithBooleanConstructor;
  65     return ConstructTypeHost;
  66 }
  67
  68 // ECMA 15.6.1
  69 static EncodedJSValue JSC_HOST_CALL callBooleanConstructor(ExecState* exec)
  70 {
  71     return JSValue::encode(jsBoolean(exec->argument(0).toBoolean(exec)));
  72 }
  73
  74 CallType BooleanConstructor::getCallData(JSCell*, CallData& callData)
  75 {
  76     callData.native.function = callBooleanConstructor;
  77     return CallTypeHost;
  78 }
  79
  80 JSObject* constructBooleanFromImmediateBoolean(ExecState* exec, JSGlobalObject* globalObject, JSValue immediateBooleanValue)
  81 {
  82     BooleanObject* obj = BooleanObject::create(exec->vm(), globalObject->booleanObjectStructure());
  83     obj->setInternalValue(exec->vm(), immediateBooleanValue);
  84     return obj;
  85 }
  86
  87 } // namespace JSC