mirror of
https://github.com/LadybirdBrowser/ladybird.git
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203 lines
9 KiB
C++
203 lines
9 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(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(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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