// -*- c-basic-offset: 2 -*- /* * This file is part of the KDE libraries * Copyright (C) 1999-2000 Harri Porten (porten@kde.org) * Copyright (C) 2003 Apple Computer, Inc. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA * */ #include "value.h" #include "object.h" #include "types.h" #include "interpreter.h" #include "operations.h" #include "bool_object.h" #include "error_object.h" #include "lookup.h" #include <assert.h> using namespace KJS; // ------------------------------ BooleanInstanceImp --------------------------- const ClassInfo BooleanInstanceImp::info = {"Boolean", 0, 0, 0}; BooleanInstanceImp::BooleanInstanceImp(ObjectImp *proto) : ObjectImp(proto) { } // ------------------------------ BooleanPrototypeImp -------------------------- // ECMA 15.6.4 BooleanPrototypeImp::BooleanPrototypeImp(ExecState *exec, ObjectPrototypeImp *objectProto, FunctionPrototypeImp *funcProto) : BooleanInstanceImp(objectProto) { Value protect(this); // The constructor will be added later by InterpreterImp::InterpreterImp() putDirect(toStringPropertyName, new BooleanProtoFuncImp(exec,funcProto,BooleanProtoFuncImp::ToString,0,toStringPropertyName), DontEnum); putDirect(valueOfPropertyName, new BooleanProtoFuncImp(exec,funcProto,BooleanProtoFuncImp::ValueOf,0,valueOfPropertyName), DontEnum); setInternalValue(Boolean(false)); } // ------------------------------ BooleanProtoFuncImp -------------------------- BooleanProtoFuncImp::BooleanProtoFuncImp(ExecState * /*exec*/, FunctionPrototypeImp *funcProto, int i, int len, const Identifier &_ident) : InternalFunctionImp(funcProto), id(i) { Value protect(this); putDirect(lengthPropertyName, len, DontDelete|ReadOnly|DontEnum); ident = _ident; } bool BooleanProtoFuncImp::implementsCall() const { return true; } // ECMA 15.6.4.2 + 15.6.4.3 Value BooleanProtoFuncImp::call(ExecState *exec, Object &thisObj, const List &/*args*/) { // no generic function. "this" has to be a Boolean object KJS_CHECK_THIS( BooleanInstanceImp, thisObj ); // execute "toString()" or "valueOf()", respectively Value v = thisObj.internalValue(); assert(v.isValid()); if (id == ToString) return String(v.toString(exec)); return Boolean(v.toBoolean(exec)); /* TODO: optimize for bool case */ } // ------------------------------ BooleanObjectImp ----------------------------- BooleanObjectImp::BooleanObjectImp(ExecState * /*exec*/, FunctionPrototypeImp *funcProto, BooleanPrototypeImp *booleanProto) : InternalFunctionImp(funcProto) { Value protect(this); putDirect(prototypePropertyName, booleanProto, DontEnum|DontDelete|ReadOnly); // no. of arguments for constructor putDirect(lengthPropertyName, NumberImp::one(), ReadOnly|DontDelete|DontEnum); } bool BooleanObjectImp::implementsConstruct() const { return true; } // ECMA 15.6.2 Object BooleanObjectImp::construct(ExecState *exec, const List &args) { Object obj(new BooleanInstanceImp(exec->lexicalInterpreter()->builtinBooleanPrototype().imp())); Boolean b; if (args.size() > 0) b = args.begin()->dispatchToBoolean(exec); else b = Boolean(false); obj.setInternalValue(b); return obj; } bool BooleanObjectImp::implementsCall() const { return true; } // ECMA 15.6.1 Value BooleanObjectImp::call(ExecState *exec, Object &/*thisObj*/, const List &args) { if (args.isEmpty()) return Boolean(false); else return Boolean(args[0].toBoolean(exec)); /* TODO: optimize for bool case */ }