1/*
2 * Copyright (C) 2017 Yusuke Suzuki <[email protected]>.
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 ExecState;
31class JSObject;
32
33namespace Yarr {
34
35enum class ErrorCode : uint8_t {
36 NoError = 0,
37 PatternTooLarge,
38 QuantifierOutOfOrder,
39 QuantifierWithoutAtom,
40 QuantifierTooLarge,
41 MissingParentheses,
42 ParenthesesUnmatched,
43 ParenthesesTypeInvalid,
44 InvalidGroupName,
45 DuplicateGroupName,
46 CharacterClassUnmatched,
47 CharacterClassOutOfOrder,
48 EscapeUnterminated,
49 InvalidUnicodeEscape,
50 InvalidBackreference,
51 InvalidIdentityEscape,
52 InvalidUnicodePropertyExpression,
53 TooManyDisjunctions,
54 OffsetTooLarge,
55 InvalidRegularExpressionFlags,
56};
57
58JS_EXPORT_PRIVATE const char* errorMessage(ErrorCode);
59inline bool hasError(ErrorCode errorCode)
60{
61 return errorCode != ErrorCode::NoError;
62}
63
64inline bool hasHardError(ErrorCode errorCode)
65{
66 // TooManyDisjunctions means that we ran out stack compiling.
67 // All other errors are due to problems in the expression.
68 return hasError(errorCode) && errorCode != ErrorCode::TooManyDisjunctions;
69}
70JS_EXPORT_PRIVATE JSObject* errorToThrow(ExecState*, ErrorCode);
71
72} } // namespace JSC::Yarr
73