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#ifndef SYMBOL_H
#define SYMBOL_H
#include "../defines.h"
#include "../data/list.h"
#define symbol_set_val(s,v) s->p_val = v
#define symbol_set_sym(s,st) s->sym = st
#define symbol_get_val(s) s->p_val
#define symbol_get_sym(s) s->sym
#define symbol_ref_up(s) ++s->i_refs
typedef enum {
SYM_BUILDIN,
SYM_CONSTANT,
SYM_FUNCTION,
SYM_PROCEDURE,
SYM_ARRAY,
SYM_VARIABLE,
} SymbolType;
/* Wraps a function's body token list and its named parameter names.
* Every SYM_FUNCTION symbol stores a FuncDef* as its p_val. */
typedef struct {
List *p_body; /* function body token list */
List *p_params; /* list of strdup'd char* param names */
int i_nparams; /* cached count of p_params */
} FuncDef;
FuncDef* funcdef_new(List *p_body, List *p_params, int i_nparams);
void funcdef_delete(FuncDef *p_funcdef);
typedef struct {
SymbolType sym;
void *p_val;
unsigned i_refs;
} Symbol;
Symbol* symbol_new(SymbolType sym, void *p_val);
void symbol_delete(Symbol *p_symbol);
void symbol_cleanup_hash_syms_cb(void *p_void);
void symbol_print(Symbol *p_symbol, char *c_key);
void symbol_print_cb(void *p_void, char *c_key);
char* sym_get_name(SymbolType sym);
#endif
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