157 lines
5.1 KiB
C++
157 lines
5.1 KiB
C++
/*
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* Copyright (c) 2020, the SerenityOS developers.
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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/StringView.h>
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#include <AK/Types.h>
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namespace Cpp {
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#define FOR_EACH_TOKEN_TYPE \
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__TOKEN(Unknown) \
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__TOKEN(Whitespace) \
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__TOKEN(PreprocessorStatement) \
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__TOKEN(IncludeStatement) \
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__TOKEN(IncludePath) \
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__TOKEN(LeftParen) \
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__TOKEN(RightParen) \
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__TOKEN(LeftCurly) \
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__TOKEN(RightCurly) \
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__TOKEN(LeftBracket) \
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__TOKEN(RightBracket) \
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__TOKEN(Less) \
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__TOKEN(Greater) \
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__TOKEN(LessEquals) \
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__TOKEN(GreaterEquals) \
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__TOKEN(LessLess) \
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__TOKEN(GreaterGreater) \
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__TOKEN(LessLessEquals) \
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__TOKEN(GreaterGreaterEquals) \
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__TOKEN(LessGreater) \
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__TOKEN(Comma) \
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__TOKEN(Plus) \
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__TOKEN(PlusPlus) \
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__TOKEN(PlusEquals) \
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__TOKEN(Minus) \
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__TOKEN(MinusMinus) \
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__TOKEN(MinusEquals) \
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__TOKEN(Asterisk) \
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__TOKEN(AsteriskEquals) \
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__TOKEN(Slash) \
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__TOKEN(SlashEquals) \
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__TOKEN(Percent) \
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__TOKEN(PercentEquals) \
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__TOKEN(Caret) \
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__TOKEN(CaretEquals) \
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__TOKEN(ExclamationMark) \
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__TOKEN(ExclamationMarkEquals) \
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__TOKEN(Equals) \
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__TOKEN(EqualsEquals) \
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__TOKEN(And) \
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__TOKEN(AndAnd) \
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__TOKEN(AndEquals) \
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__TOKEN(Pipe) \
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__TOKEN(PipePipe) \
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__TOKEN(PipeEquals) \
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__TOKEN(Tilde) \
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__TOKEN(QuestionMark) \
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__TOKEN(Colon) \
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__TOKEN(ColonColon) \
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__TOKEN(ColonColonAsterisk) \
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__TOKEN(Semicolon) \
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__TOKEN(Dot) \
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__TOKEN(DotAsterisk) \
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__TOKEN(Arrow) \
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__TOKEN(ArrowAsterisk) \
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__TOKEN(DoubleQuotedString) \
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__TOKEN(SingleQuotedString) \
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__TOKEN(RawString) \
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__TOKEN(EscapeSequence) \
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__TOKEN(Comment) \
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__TOKEN(Integer) \
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__TOKEN(Float) \
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__TOKEN(Keyword) \
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__TOKEN(KnownType) \
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__TOKEN(Identifier) \
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__TOKEN(EOF_TOKEN)
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struct Position {
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size_t line { 0 };
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size_t column { 0 };
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bool operator<(const Position&) const;
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bool operator>(const Position&) const;
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bool operator==(const Position&) const;
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};
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struct Token {
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enum class Type {
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#define __TOKEN(x) x,
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FOR_EACH_TOKEN_TYPE
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#undef __TOKEN
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};
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Token(Type type, const Position& start, const Position& end, const StringView& text)
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: m_type(type)
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, m_start(start)
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, m_end(end)
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, m_text(text)
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{
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}
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static const char* type_to_string(Type t)
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{
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switch (t) {
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#define __TOKEN(x) \
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case Type::x: \
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return #x;
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FOR_EACH_TOKEN_TYPE
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#undef __TOKEN
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}
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VERIFY_NOT_REACHED();
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}
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const char* to_string() const
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{
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return type_to_string(m_type);
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}
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const Position& start() const { return m_start; }
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const Position& end() const { return m_end; }
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void set_start(const Position& other) { m_start = other; }
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void set_end(const Position& other) { m_end = other; }
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Type type() const { return m_type; }
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const StringView& text() const { return m_text; }
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private:
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Type m_type { Type::Unknown };
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Position m_start;
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Position m_end;
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StringView m_text;
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};
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}
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