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 "StringRecursionChecker.h" 29 #include "UString.h" 30 31 namespace JSC { 32 33 ASSERT_CLASS_FITS_IN_CELL(ErrorPrototype); 34 35 static EncodedJSValue JSC_HOST_CALL errorProtoFuncToString(ExecState*); 36 37 // ECMA 15.9.4 38 ErrorPrototype::ErrorPrototype(ExecState* exec, JSGlobalObject* globalObject, Structure* structure, Structure* functionStructure) 39 : ErrorInstance(&exec->globalData(), structure) 40 { 41 // The constructor will be added later in ErrorConstructor's constructor 42 43 putDirectWithoutTransition(exec->globalData(), exec->propertyNames().name, jsNontrivialString(exec, "Error"), DontEnum); 44 putDirectFunctionWithoutTransition(exec, new (exec) JSFunction(exec, globalObject, functionStructure, 0, exec->propertyNames().toString, errorProtoFuncToString), DontEnum); 45 } 46 47 EncodedJSValue JSC_HOST_CALL errorProtoFuncToString(ExecState* exec) 48 { 49 JSObject* thisObj = exec->hostThisValue().toThisObject(exec); 50 51 StringRecursionChecker checker(exec, thisObj); 52 if (EncodedJSValue earlyReturnValue = checker.earlyReturnValue()) 53 return earlyReturnValue; 54 55 JSValue name = thisObj->get(exec, exec->propertyNames().name); 56 JSValue message = thisObj->get(exec, exec->propertyNames().message); 57 58 // Mozilla-compatible format. 59 60 if (!name.isUndefined()) { 61 if (!message.isUndefined()) 62 return JSValue::encode(jsMakeNontrivialString(exec, name.toString(exec), ": ", message.toString(exec))); 63 return JSValue::encode(jsNontrivialString(exec, name.toString(exec))); 64 } 65 if (!message.isUndefined()) 66 return JSValue::encode(jsMakeNontrivialString(exec, "Error: ", message.toString(exec))); 67 return JSValue::encode(jsNontrivialString(exec, "Error")); 68 } 69 70 } // namespace JSC 71
