tables.h

#ifndef _TABLES_H_
#define _TABLES_H_

#include "types.h"
#include "lex_value.h"

#define SIZE_OF_INT 4

struct entry {
    int line;
    enum natures nature;
    enum types type;
    struct val value;
    char shift[12];
    char *scope;
};

struct table {
    struct entry **entries;
    int num_entries;
    char *scope;
};

struct table_stack{
    struct table *top;
    struct table_stack *next;
};

// Entries
struct entry new_entry(int line, enum natures nature, enum types type, struct val value);

// Tables
struct table *new_table();
void add_entry(struct table *table, struct entry *entry);
struct entry *search_table(struct table *table, char *label);
void free_table(struct table *table);

// Stack
struct table_stack *new_table_stack();
void push_table(struct table_stack **table_stack, struct table *new_table);
void pop_table(struct table_stack *table_stack);
struct entry *search_table_stack(struct table_stack *table_stack, char *label);
void free_table_stack(struct table_stack *table_stack);

#endif //_TABLES_H_