126 lines
2.6 KiB
C++
126 lines
2.6 KiB
C++
/* Copyright (C) 2024 Aryadev Chavali
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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* FOR A PARTICULAR PURPOSE. See the GNU General Public License Version 2 for
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* details.
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* You may distribute and modify this code under the terms of the GNU General
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* Public License Version 2, which you should have received a copy of along with
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* this program. If not, please go to <https://www.gnu.org/licenses/>.
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* Created: 2024-04-14
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* Author: Aryadev Chavali
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* Description: Lexer for assembly language
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*/
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#ifndef LEXER_HPP
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#define LEXER_HPP
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#include <ostream>
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#include <string>
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#include <vector>
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namespace Lexer
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{
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struct Token
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{
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enum class Type
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{
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PP_CONST, // %const(<symbol>)...
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PP_USE, // %use <string>
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PP_END, // %end
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PP_REFERENCE, // $<symbol>
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GLOBAL,
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STAR,
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LITERAL_NUMBER,
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LITERAL_CHAR,
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LITERAL_STRING,
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NOOP,
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HALT,
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PUSH,
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POP,
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PUSH_REG,
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MOV,
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DUP,
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MALLOC,
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MALLOC_STACK,
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MSET,
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MSET_STACK,
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MGET,
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MGET_STACK,
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MDELETE,
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MSIZE,
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NOT,
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OR,
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AND,
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XOR,
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EQ,
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LT,
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LTE,
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GT,
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GTE,
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PLUS,
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SUB,
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MULT,
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PRINT,
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JUMP_ABS,
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JUMP_STACK,
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JUMP_IF,
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CALL,
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CALL_STACK,
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RET,
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SYMBOL,
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} type;
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size_t column, line;
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std::string content;
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enum class OperandType
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{
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NIL,
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BYTE,
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CHAR,
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HWORD,
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INT,
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WORD,
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LONG
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} operand_type;
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Token();
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Token(Token::Type, std::string_view content = "", size_t col = 0,
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size_t line = 0, OperandType optype = OperandType::NIL);
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};
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struct Err
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{
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size_t col, line;
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enum class Type
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{
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OK = 0,
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INVALID_CHAR_LITERAL,
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INVALID_CHAR_LITERAL_ESCAPE_SEQUENCE,
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INVALID_STRING_LITERAL,
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INVALID_NUMBER_LITERAL,
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INVALID_PREPROCESSOR_DIRECTIVE,
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EXPECTED_TYPE_SUFFIX,
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EXPECTED_UNSIGNED_TYPE_SUFFIX,
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UNKNOWN_LEXEME,
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} type;
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Err(Type type = Type::OK, size_t col = 0, size_t line = 0);
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};
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Err tokenise_buffer(std::string_view, std::vector<Token *> &);
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std::string to_string(const Token::Type &);
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std::string to_string(const Token::OperandType &);
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std::string to_string(const Token &);
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std::string to_string(const Err::Type &);
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std::string to_string(const Err &);
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std::ostream &operator<<(std::ostream &, const Token &);
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std::ostream &operator<<(std::ostream &, const Err &);
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} // namespace Lexer
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#endif
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