/* Filename: stable.h
 * Compiler: msvc (Visual Studio 2015)
 * Function declarations for the symbol table 
 * CST8152, Assignment #3 
 * Professor: Svillen Ranev
 * Author: Victor Fernandes, 040772243
 * Version: 0.1
 * Date: 24 March 2017
*/

#ifndef STABLE_H_
#define STABLE_H_
#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include "buffer.h"
typedef union InitialValue {
    int int_val;   /* Integer variable initial value */
    float fpl_val   /* Floating-point variable initial value */
    int str_offset /* String variable initial value (location offset) */
} Value;
typedef struct SymbolTableVidRecord {
    unsigned short status_field  /* Variable record status field */
    char *plex;                 /* Pointer to lexeme (VID name) in CA (character array) */
    int o_line                  /* Line of first occurence */
    Value i_value;              /* Variable initial value */
    void *reserved;             /* Reserved for future use, not needed right now */
} STVR;
typedef struct SymbolTableDescriptor {
    STVR *pstvr;      /* Pointer to array of STVR */
    int st_size;      /* Size in number of STVR elements */
    int st_offset;    /* Offset in number of STVR elements */
    Buffer *plsBD;    /* Pointer to the lexeme storage buffer descriptor */
} STD;

int st_install(STD, char*, char, int);
int st_lookup(STD, char*);
int st_change_type(STD, int, char);
int st_change_value(STD, int, Value);
char st_get_type(STD, int);
Value st_get_value(STD, int);
void st_destroy(STD);
int st_print(STD);
int st_store(STD);
int st_sort(STD, char);

#endif