mirror of
https://github.com/RGBCube/serenity
synced 2025-05-31 17:08:12 +00:00
61ac1d3ffa
This adds regex parsing/lexing, as well as a relatively empty RegExpObject. The purpose of this patch is to allow the engine to not get hung up on parsing regexes. This will aid in finding new syntax errors (say, from google or twitter) without having to replace all of their regexes first!
205 lines
9.2 KiB
C++
205 lines
9.2 KiB
C++
/*
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* Copyright (c) 2020, Stephan Unverwerth <s.unverwerth@gmx.de>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#pragma once
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#include <AK/String.h>
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#include <AK/StringView.h>
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namespace JS {
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#define ENUMERATE_JS_TOKENS \
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__ENUMERATE_JS_TOKEN(Ampersand) \
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__ENUMERATE_JS_TOKEN(AmpersandEquals) \
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__ENUMERATE_JS_TOKEN(Arrow) \
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__ENUMERATE_JS_TOKEN(Asterisk) \
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__ENUMERATE_JS_TOKEN(DoubleAsteriskEquals) \
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__ENUMERATE_JS_TOKEN(AsteriskEquals) \
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__ENUMERATE_JS_TOKEN(Async) \
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__ENUMERATE_JS_TOKEN(Await) \
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__ENUMERATE_JS_TOKEN(BoolLiteral) \
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__ENUMERATE_JS_TOKEN(BracketClose) \
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__ENUMERATE_JS_TOKEN(BracketOpen) \
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__ENUMERATE_JS_TOKEN(Break) \
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__ENUMERATE_JS_TOKEN(Caret) \
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__ENUMERATE_JS_TOKEN(CaretEquals) \
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__ENUMERATE_JS_TOKEN(Case) \
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__ENUMERATE_JS_TOKEN(Catch) \
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__ENUMERATE_JS_TOKEN(Class) \
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__ENUMERATE_JS_TOKEN(Colon) \
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__ENUMERATE_JS_TOKEN(Comma) \
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__ENUMERATE_JS_TOKEN(Const) \
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__ENUMERATE_JS_TOKEN(Continue) \
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__ENUMERATE_JS_TOKEN(CurlyClose) \
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__ENUMERATE_JS_TOKEN(CurlyOpen) \
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__ENUMERATE_JS_TOKEN(Debugger) \
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__ENUMERATE_JS_TOKEN(Default) \
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__ENUMERATE_JS_TOKEN(Delete) \
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__ENUMERATE_JS_TOKEN(Do) \
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__ENUMERATE_JS_TOKEN(DoubleAmpersand) \
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__ENUMERATE_JS_TOKEN(DoubleAsterisk) \
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__ENUMERATE_JS_TOKEN(DoublePipe) \
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__ENUMERATE_JS_TOKEN(DoubleQuestionMark) \
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__ENUMERATE_JS_TOKEN(Else) \
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__ENUMERATE_JS_TOKEN(Enum) \
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__ENUMERATE_JS_TOKEN(Eof) \
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__ENUMERATE_JS_TOKEN(Equals) \
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__ENUMERATE_JS_TOKEN(EqualsEquals) \
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__ENUMERATE_JS_TOKEN(EqualsEqualsEquals) \
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__ENUMERATE_JS_TOKEN(ExclamationMark) \
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__ENUMERATE_JS_TOKEN(ExclamationMarkEquals) \
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__ENUMERATE_JS_TOKEN(ExclamationMarkEqualsEquals) \
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__ENUMERATE_JS_TOKEN(Export) \
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__ENUMERATE_JS_TOKEN(Extends) \
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__ENUMERATE_JS_TOKEN(Finally) \
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__ENUMERATE_JS_TOKEN(For) \
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__ENUMERATE_JS_TOKEN(Function) \
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__ENUMERATE_JS_TOKEN(GreaterThan) \
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__ENUMERATE_JS_TOKEN(GreaterThanEquals) \
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__ENUMERATE_JS_TOKEN(Identifier) \
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__ENUMERATE_JS_TOKEN(If) \
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__ENUMERATE_JS_TOKEN(Implements) \
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__ENUMERATE_JS_TOKEN(Import) \
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__ENUMERATE_JS_TOKEN(In) \
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__ENUMERATE_JS_TOKEN(Instanceof) \
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__ENUMERATE_JS_TOKEN(Interface) \
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__ENUMERATE_JS_TOKEN(Invalid) \
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__ENUMERATE_JS_TOKEN(LessThan) \
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__ENUMERATE_JS_TOKEN(LessThanEquals) \
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__ENUMERATE_JS_TOKEN(Let) \
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__ENUMERATE_JS_TOKEN(Minus) \
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__ENUMERATE_JS_TOKEN(MinusEquals) \
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__ENUMERATE_JS_TOKEN(MinusMinus) \
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__ENUMERATE_JS_TOKEN(New) \
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__ENUMERATE_JS_TOKEN(NullLiteral) \
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__ENUMERATE_JS_TOKEN(NumericLiteral) \
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__ENUMERATE_JS_TOKEN(Package) \
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__ENUMERATE_JS_TOKEN(ParenClose) \
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__ENUMERATE_JS_TOKEN(ParenOpen) \
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__ENUMERATE_JS_TOKEN(Percent) \
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__ENUMERATE_JS_TOKEN(PercentEquals) \
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__ENUMERATE_JS_TOKEN(Period) \
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__ENUMERATE_JS_TOKEN(Pipe) \
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__ENUMERATE_JS_TOKEN(PipeEquals) \
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__ENUMERATE_JS_TOKEN(Plus) \
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__ENUMERATE_JS_TOKEN(PlusEquals) \
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__ENUMERATE_JS_TOKEN(PlusPlus) \
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__ENUMERATE_JS_TOKEN(Private) \
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__ENUMERATE_JS_TOKEN(Protected) \
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__ENUMERATE_JS_TOKEN(Public) \
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__ENUMERATE_JS_TOKEN(QuestionMark) \
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__ENUMERATE_JS_TOKEN(QuestionMarkPeriod) \
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__ENUMERATE_JS_TOKEN(RegexLiteral) \
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__ENUMERATE_JS_TOKEN(RegexFlags) \
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__ENUMERATE_JS_TOKEN(Return) \
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__ENUMERATE_JS_TOKEN(Semicolon) \
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__ENUMERATE_JS_TOKEN(ShiftLeft) \
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__ENUMERATE_JS_TOKEN(ShiftLeftEquals) \
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__ENUMERATE_JS_TOKEN(ShiftRight) \
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__ENUMERATE_JS_TOKEN(ShiftRightEquals) \
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__ENUMERATE_JS_TOKEN(Slash) \
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__ENUMERATE_JS_TOKEN(SlashEquals) \
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__ENUMERATE_JS_TOKEN(Static) \
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__ENUMERATE_JS_TOKEN(StringLiteral) \
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__ENUMERATE_JS_TOKEN(Super) \
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__ENUMERATE_JS_TOKEN(Switch) \
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__ENUMERATE_JS_TOKEN(TemplateLiteralEnd) \
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__ENUMERATE_JS_TOKEN(TemplateLiteralExprEnd) \
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__ENUMERATE_JS_TOKEN(TemplateLiteralExprStart) \
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__ENUMERATE_JS_TOKEN(TemplateLiteralStart) \
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__ENUMERATE_JS_TOKEN(TemplateLiteralString) \
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__ENUMERATE_JS_TOKEN(This) \
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__ENUMERATE_JS_TOKEN(Throw) \
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__ENUMERATE_JS_TOKEN(Tilde) \
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__ENUMERATE_JS_TOKEN(TripleDot) \
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__ENUMERATE_JS_TOKEN(Try) \
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__ENUMERATE_JS_TOKEN(Typeof) \
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__ENUMERATE_JS_TOKEN(UnsignedShiftRight) \
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__ENUMERATE_JS_TOKEN(UnsignedShiftRightEquals) \
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__ENUMERATE_JS_TOKEN(UnterminatedRegexLiteral) \
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__ENUMERATE_JS_TOKEN(UnterminatedStringLiteral) \
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__ENUMERATE_JS_TOKEN(UnterminatedTemplateLiteral) \
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__ENUMERATE_JS_TOKEN(Var) \
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__ENUMERATE_JS_TOKEN(Void) \
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__ENUMERATE_JS_TOKEN(While) \
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__ENUMERATE_JS_TOKEN(With) \
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__ENUMERATE_JS_TOKEN(Yield)
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enum class TokenType {
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#define __ENUMERATE_JS_TOKEN(x) x,
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ENUMERATE_JS_TOKENS
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#undef __ENUMERATE_JS_TOKEN
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};
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class Token {
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public:
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Token(TokenType type, StringView trivia, StringView value, size_t line_number, size_t line_column)
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: m_type(type)
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, m_trivia(trivia)
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, m_value(value)
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, m_line_number(line_number)
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, m_line_column(line_column)
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{
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}
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TokenType type() const { return m_type; }
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const char* name() const;
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static const char* name(TokenType);
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const StringView& trivia() const { return m_trivia; }
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const StringView& value() const { return m_value; }
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size_t line_number() const { return m_line_number; }
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size_t line_column() const { return m_line_column; }
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double double_value() const;
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bool bool_value() const;
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enum class StringValueStatus {
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Ok,
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MalformedHexEscape,
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MalformedUnicodeEscape,
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UnicodeEscapeOverflow,
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};
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String string_value(StringValueStatus& status) const;
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bool is_identifier_name() const;
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private:
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TokenType m_type;
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StringView m_trivia;
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StringView m_value;
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size_t m_line_number;
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size_t m_line_column;
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};
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}
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namespace AK {
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template<>
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struct Traits<JS::TokenType> : public GenericTraits<JS::TokenType> {
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static constexpr bool is_trivial() { return true; }
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static unsigned hash(JS::TokenType t) { return int_hash((int)t); }
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};
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}
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