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 "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
ErrorPrototype(ExecState * exec,NonNullPassRefPtr<Structure> structure,Structure * prototypeFunctionStructure)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
errorProtoFuncToString(ExecState * exec,JSObject *,JSValue thisValue,const ArgList &)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