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 "ErrorPrototype.h" 23 24 #include "JSFunction.h" 25 #include "JSString.h" 26 #include "JSStringBuilder.h" 27 #include "ObjectPrototype.h" 28 #include "PrototypeFunction.h" 29 #include "UString.h" 30 31 namespace JSC { 32 33 ASSERT_CLASS_FITS_IN_CELL(ErrorPrototype); 34 35 static JSValue JSC_HOST_CALL errorProtoFuncToString(ExecState*, JSObject*, JSValue, const ArgList&); 36 37 // ECMA 15.9.4 38 ErrorPrototype::ErrorPrototype(ExecState* exec, NonNullPassRefPtr<Structure> structure, Structure* prototypeFunctionStructure) 39 : ErrorInstance(structure) 40 { 41 // The constructor will be added later in ErrorConstructor's constructor 42 43 putDirectWithoutTransition(exec->propertyNames().name, jsNontrivialString(exec, "Error"), DontEnum); 44 putDirectWithoutTransition(exec->propertyNames().message, jsNontrivialString(exec, "Unknown error"), DontEnum); 45 46 putDirectFunctionWithoutTransition(exec, new (exec) NativeFunctionWrapper(exec, prototypeFunctionStructure, 0, exec->propertyNames().toString, errorProtoFuncToString), DontEnum); 47 } 48 49 JSValue JSC_HOST_CALL errorProtoFuncToString(ExecState* exec, JSObject*, JSValue thisValue, const ArgList&) 50 { 51 JSObject* thisObj = thisValue.toThisObject(exec); 52 JSValue name = thisObj->get(exec, exec->propertyNames().name); 53 JSValue message = thisObj->get(exec, exec->propertyNames().message); 54 55 // Mozilla-compatible format. 56 57 if (!name.isUndefined()) { 58 if (!message.isUndefined()) 59 return jsMakeNontrivialString(exec, name.toString(exec), ": ", message.toString(exec)); 60 return jsNontrivialString(exec, name.toString(exec)); 61 } 62 if (!message.isUndefined()) 63 return jsMakeNontrivialString(exec, "Error: ", message.toString(exec)); 64 return jsNontrivialString(exec, "Error"); 65 } 66 67 } // namespace JSC 68
