JavaScriptCore-7600.1.4.16.1.tar.gz
[apple/javascriptcore.git] / runtime / Error.h
1 /*
2 * Copyright (C) 1999-2001 Harri Porten (porten@kde.org)
3 * Copyright (C) 2001 Peter Kelly (pmk@post.com)
4 * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008 Apple Inc. All rights reserved.
5 *
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Library General Public
8 * License as published by the Free Software Foundation; either
9 * version 2 of the License, or (at your option) any later version.
10 *
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Library General Public License for more details.
15 *
16 * You should have received a copy of the GNU Library General Public License
17 * along with this library; see the file COPYING.LIB. If not, write to
18 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
19 * Boston, MA 02110-1301, USA.
20 *
21 */
22
23 #ifndef Error_h
24 #define Error_h
25
26 #include "InternalFunction.h"
27 #include "Interpreter.h"
28 #include "JSObject.h"
29 #include <stdint.h>
30
31 namespace JSC {
32
33 class ExecState;
34 class VM;
35 class JSGlobalObject;
36 class JSObject;
37 class SourceCode;
38 class Structure;
39
40 // Methods to create a range of internal errors.
41 JSObject* createError(JSGlobalObject*, const String&);
42 JSObject* createEvalError(JSGlobalObject*, const String&);
43 JSObject* createRangeError(JSGlobalObject*, const String&);
44 JSObject* createReferenceError(JSGlobalObject*, const String&);
45 JSObject* createSyntaxError(JSGlobalObject*, const String&);
46 JSObject* createTypeError(JSGlobalObject*, const String&);
47 JSObject* createNotEnoughArgumentsError(JSGlobalObject*);
48 JSObject* createURIError(JSGlobalObject*, const String&);
49 // ExecState wrappers.
50 JS_EXPORT_PRIVATE JSObject* createError(ExecState*, const String&);
51 JSObject* createEvalError(ExecState*, const String&);
52 JS_EXPORT_PRIVATE JSObject* createRangeError(ExecState*, const String&);
53 JS_EXPORT_PRIVATE JSObject* createReferenceError(ExecState*, const String&);
54 JS_EXPORT_PRIVATE JSObject* createSyntaxError(ExecState*, const String&);
55 JS_EXPORT_PRIVATE JSObject* createTypeError(ExecState*, const String&);
56 JS_EXPORT_PRIVATE JSObject* createNotEnoughArgumentsError(ExecState*);
57 JSObject* createURIError(ExecState*, const String&);
58
59 // Methods to add
60 bool hasErrorInfo(ExecState*, JSObject* error);
61 // ExecState wrappers.
62 JSObject* addErrorInfo(ExecState*, JSObject* error, int line, const SourceCode&);
63
64 // Methods to throw Errors.
65
66 // Convenience wrappers, create an throw an exception with a default message.
67 JS_EXPORT_PRIVATE JSObject* throwTypeError(ExecState*);
68 JS_EXPORT_PRIVATE JSObject* throwSyntaxError(ExecState*);
69
70 // Convenience wrappers, wrap result as an EncodedJSValue.
71 inline EncodedJSValue throwVMError(ExecState* exec, JSValue error) { return JSValue::encode(exec->vm().throwException(exec, error)); }
72 inline EncodedJSValue throwVMTypeError(ExecState* exec) { return JSValue::encode(throwTypeError(exec)); }
73 inline EncodedJSValue throwVMTypeError(ExecState* exec, const String& errorMessage) { return JSValue::encode(throwTypeError(exec, errorMessage)); }
74
75 class StrictModeTypeErrorFunction : public InternalFunction {
76 private:
77 StrictModeTypeErrorFunction(VM& vm, Structure* structure, const String& message)
78 : InternalFunction(vm, structure)
79 , m_message(message)
80 {
81 }
82
83 static void destroy(JSCell*);
84
85 public:
86 typedef InternalFunction Base;
87
88 static StrictModeTypeErrorFunction* create(VM& vm, Structure* structure, const String& message)
89 {
90 StrictModeTypeErrorFunction* function = new (NotNull, allocateCell<StrictModeTypeErrorFunction>(vm.heap)) StrictModeTypeErrorFunction(vm, structure, message);
91 function->finishCreation(vm, String());
92 return function;
93 }
94
95 static EncodedJSValue JSC_HOST_CALL constructThrowTypeError(ExecState* exec)
96 {
97 throwTypeError(exec, static_cast<StrictModeTypeErrorFunction*>(exec->callee())->m_message);
98 return JSValue::encode(jsNull());
99 }
100
101 static ConstructType getConstructData(JSCell*, ConstructData& constructData)
102 {
103 constructData.native.function = constructThrowTypeError;
104 return ConstructTypeHost;
105 }
106
107 static EncodedJSValue JSC_HOST_CALL callThrowTypeError(ExecState* exec)
108 {
109 throwTypeError(exec, static_cast<StrictModeTypeErrorFunction*>(exec->callee())->m_message);
110 return JSValue::encode(jsNull());
111 }
112
113 static CallType getCallData(JSCell*, CallData& callData)
114 {
115 callData.native.function = callThrowTypeError;
116 return CallTypeHost;
117 }
118
119 DECLARE_INFO;
120
121 static Structure* createStructure(VM& vm, JSGlobalObject* globalObject, JSValue prototype)
122 {
123 return Structure::create(vm, globalObject, prototype, TypeInfo(ObjectType, StructureFlags), info());
124 }
125
126 private:
127 String m_message;
128 };
129
130 } // namespace JSC
131
132 #endif // Error_h