1 /* 2 * Copyright (C) 1999-2000 Harri Porten (porten (at) 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 "ErrorConstructor.h" 23 24 #include "ErrorPrototype.h" 25 #include "JSGlobalObject.h" 26 #include "JSString.h" 27 28 namespace JSC { 29 30 ASSERT_CLASS_FITS_IN_CELL(ErrorConstructor); 31 32 ErrorConstructor::ErrorConstructor(ExecState* exec, NonNullPassRefPtr<Structure> structure, ErrorPrototype* errorPrototype) 33 : InternalFunction(&exec->globalData(), structure, Identifier(exec, errorPrototype->classInfo()->className)) 34 { 35 // ECMA 15.11.3.1 Error.prototype 36 putDirectWithoutTransition(exec->propertyNames().prototype, errorPrototype, DontEnum | DontDelete | ReadOnly); 37 putDirectWithoutTransition(exec->propertyNames().length, jsNumber(exec, 1), DontDelete | ReadOnly | DontEnum); 38 } 39 40 // ECMA 15.9.3 41 ErrorInstance* constructError(ExecState* exec, const ArgList& args) 42 { 43 ErrorInstance* obj = new (exec) ErrorInstance(exec->lexicalGlobalObject()->errorStructure()); 44 if (!args.at(0).isUndefined()) 45 obj->putDirect(exec->propertyNames().message, jsString(exec, args.at(0).toString(exec))); 46 return obj; 47 } 48 49 static JSObject* constructWithErrorConstructor(ExecState* exec, JSObject*, const ArgList& args) 50 { 51 return constructError(exec, args); 52 } 53 54 ConstructType ErrorConstructor::getConstructData(ConstructData& constructData) 55 { 56 constructData.native.function = constructWithErrorConstructor; 57 return ConstructTypeHost; 58 } 59 60 // ECMA 15.9.2 61 static JSValue JSC_HOST_CALL callErrorConstructor(ExecState* exec, JSObject*, JSValue, const ArgList& args) 62 { 63 // "Error()" gives the sames result as "new Error()" 64 return constructError(exec, args); 65 } 66 67 CallType ErrorConstructor::getCallData(CallData& callData) 68 { 69 callData.native.function = callErrorConstructor; 70 return CallTypeHost; 71 } 72 73 } // namespace JSC 74