symbol.h

/*
 * Project name:
 * Implementace interpretu imperativního jazyka IFJ14
 *
 * Repository:
 * https://github.com/Dasio/IFJ
 *
 * Team:
 * Dávid Mikuš			(xmikus15)
 * Peter Hostačný		(xhosta03)
 * Tomáš Kello			(xkello00)
 * Adam Lučanský		(xlucan01)
 * Michaela Lukášová		(xlukas09)
 */

#include "error.h"
#include "string.h"
#include "vector.h"

#ifndef SYMBOL_H
#define SYMBOL_H

#define DEFAULT_HASH_SIZE 16
#define DEFAULT_ARG_NUM 4

// Types of symbols
typedef enum {
	T_String,
	T_double,
	T_int,
	T_bool,
	T_FunPointer,
	T_Undefined
} SymbolType;
typedef enum
{
	FS_Undefined = 0, /**< Function is just added to GST */
	FS_Declared, /**< Function is declared */
	FS_Defined /**< Function is defined */
} FuncState;

struct SymbolListStruct;
typedef struct SymbolListStruct SymbolList;

struct SymbolStruct;
typedef struct SymbolStruct Symbol;

typedef struct
{
	Symbol **arg; /**< array of arguments, points to symbol in Hash */
	//Symbol *ret_value; /**< pointer to symbol with return value of function */
	int32_t argCount;
	int32_t argMax;

	SymbolList **locTable;	/**< Hash of all symbols in this Context */
	int32_t locSize;	/**< size of HashTable */
	int32_t locCount;	/**< number of LOCAL/GLOBAL variables */
	int32_t instrucIndex; /**< index of start in Instruction Tape */
	SymbolType returnType; /**< Type of return value */
}Context;

struct SymbolStruct
{
	SymbolType type;	/**< Enum what kind of data are stored */
	int64_t index;		/**< for variable index/offset(global/local) to stack
							 for function index to instruction tape */
	char *name;		/**< Name of variable/function */
	FuncState stateFunc; /**< 0- initial state 1-declared 2-defined */
	Context *funCont;   /**< Pointer to Context of function */
	int64_tVector *adressVector; 	/**< for adding addresses to instruction tape
								if function was called before definition */
}; // Symbol

// struct in Hash table with data and pointer to next value
struct SymbolListStruct
{
	SymbolList *next;
	Symbol data;
}; // SymbolList

#include "ial.h"
#include "stack.h"

/**
 * Init content for funciton
 * @return          pointer to context
 *
 */
Context *InitContext();

/**
 * Init content for funciton
 * @param  Context*		pointer to context
 * @param  SymbolType	type of new symbol
 * @param  char*		name of new symbol
 * @param  Context*		pointer to context if SymbolType == T_FunPointer
 * @return SymbolList*	pointer to new symbol
 *
 */
Symbol *AddArgToContext(Context*, SymbolType, char*, Context*);


void FreeContext(Context*);

#endif