blog-static/code/compiler/13/parse_driver.hpp

#pragma once
#include <string>
#include <fstream>
#include <sstream>
#include "definition.hpp"
#include "location.hh"
#include "parser.hpp"

struct parse_driver;

void scanner_init(parse_driver* d, yyscan_t* scanner);
void scanner_destroy(yyscan_t* scanner);

struct parse_driver {
    std::string file_name;
    std::ostringstream string_stream;
    std::string file_contents;

    yy::location location;
    size_t file_offset;
    std::vector<size_t> line_offsets;

    definition_group global_defs;

    parse_driver(const std::string& file)
        : file_name(file), file_offset(0) {}

    bool run_parse();
    void write(const char* buff, size_t len);
    void mark_line();
    size_t get_index(int line, int column);
    size_t get_line_end(int line);
    void print_location(
            std::ostream& stream,
            const yy::location& loc,
            bool highlight = true);
};

#define YY_DECL yy::parser::symbol_type yylex(yyscan_t yyscanner, parse_driver& drv)

YY_DECL;