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/* Copyright (C) 2024 Aryadev Chavali
* You may distribute and modify this code under the terms of the GPLv2
* license. You should have received a copy of the GPLv2 license with
* this file. If not, please write to: aryadev@aryadevchavali.com.
* Created: 2024-04-14
* Author: Aryadev Chavali
* Description: Preprocessor which occurs after lexing before parsing.
*/
#ifndef PREPROCESSER_HPP
#define PREPROCESSER_HPP
#include <ostream>
#include <tuple>
#include "./lexer.hpp"
enum pp_err_type_t
{
OK = 0,
EXPECTED_NAME,
EXPECTED_STRING,
EXPECTED_END,
FILE_NONEXISTENT,
FILE_PARSE_ERROR,
UNKNOWN_NAME,
};
struct pp_err_t
{
const token_t *reference;
pp_err_type_t type;
lerr_t lerr;
pp_err_t();
pp_err_t(pp_err_type_t);
pp_err_t(pp_err_type_t, const token_t *);
pp_err_t(pp_err_type_t, const token_t *, lerr_t);
};
std::ostream &operator<<(std::ostream &, pp_err_t &);
struct pp_unit_t
{
const token_t *const token;
struct
{
std::string_view name;
std::vector<pp_unit_t> elements;
} container;
pp_unit_t(const token_t *const);
pp_unit_t(std::string_view, std::vector<pp_unit_t>);
};
std::vector<pp_unit_t> tokens_to_units(const std::vector<token_t *> &);
pp_err_t preprocess_use(std::vector<pp_unit_t> &);
pp_err_t preprocesser(const std::vector<token_t *> &, std::vector<token_t *> &);
#endif
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