Cescal/include/cescal/state.h

/*
 * Copyright (c) 2026, Chloe M.
 * Provided under the BSD-3 clause
 */

#ifndef CESCAL_STATE_H
#define CESCAL_STATE_H 1

#include <stdint.h>
#include "cescal/readbuf.h"
#include "cescal/tokbuf.h"
#include "cescal/ptrbox.h"
#include "cescal/symbol.h"

/*
 * Compiler state machine
 *
 * @in_fd:  Input file descriptor
 * @rb:     Read buffer
 * @tokbuf: Token buffer
 * @ptrbox: Global pointer box
 * @lex_putback: Lexer putback buffer
 * @pass:  Current pass
 * @symtab: Symbol table
 */
struct cescal_state {
    int in_fd;
    struct readbuf rb;
    struct tokbuf tokbuf;
    struct ptrbox ptrbox;
    char lex_putback;
    uint8_t pass;
    struct symbol_table symtab;
};

/*
 * Initialize the compiler state machine
 *
 * @state:      Compiler state machine
 * @pathname:   Path of input source file
 *
 * Returns zero on success
 */
int state_init(struct cescal_state *state, const char *pathname);

/*
 * Close the compiler state machine
 *
 * @state: Compiler state machine to close
 */
void state_close(struct cescal_state *state);

#endif  /* !CESCAL_STATE_H */