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