1/*
2 * Copyright (C) 2017 Yusuke Suzuki <utatane.tea@gmail.com>.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26#pragma once
27
28namespace JSC {
29
30class CallFrame;
31class JSGlobalObject;
32class JSObject;
33
34namespace Yarr {
35
36enum class ErrorCode : uint8_t {
37 NoError = 0,
38 PatternTooLarge,
39 QuantifierOutOfOrder,
40 QuantifierWithoutAtom,
41 QuantifierTooLarge,
42 MissingParentheses,
43 ParenthesesUnmatched,
44 ParenthesesTypeInvalid,
45 InvalidGroupName,
46 DuplicateGroupName,
47 CharacterClassUnmatched,
48 CharacterClassOutOfOrder,
49 EscapeUnterminated,
50 InvalidUnicodeEscape,
51 InvalidBackreference,
52 InvalidIdentityEscape,
53 InvalidUnicodePropertyExpression,
54 TooManyDisjunctions,
55 OffsetTooLarge,
56 InvalidRegularExpressionFlags,
57};
58
59JS_EXPORT_PRIVATE const char* errorMessage(ErrorCode);
60inline bool hasError(ErrorCode errorCode)
61{
62 return errorCode != ErrorCode::NoError;
63}
64
65inline bool hasHardError(ErrorCode errorCode)
66{
67 // TooManyDisjunctions means that we ran out stack compiling.
68 // All other errors are due to problems in the expression.
69 return hasError(errorCode) && errorCode != ErrorCode::TooManyDisjunctions;
70}
71JS_EXPORT_PRIVATE JSObject* errorToThrow(JSGlobalObject*, ErrorCode);
72
73} } // namespace JSC::Yarr
74