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/*:*
*: File: ./src/core/symbol.h
*: A simple interpreter
*:
*: WWW : https://codeberg.org/snonux/fype
*: AUTHOR : http://buetow.org
*: E-Mail : fype at dev.buetow.org
*:
*: Copyright (c) 2005 - 2008, Paul Buetow
*: All rights reserved.
*:
*: Redistribution and use in source and binary forms, with or without modi-
*: fication, are permitted provided that the following conditions are met:
*: * Redistributions of source code must retain the above copyright
*: notice, this list of conditions and the following disclaimer.
*: * Redistributions in binary form must reproduce the above copyright
*: notice, this list of conditions and the following disclaimer in the
*: documentation and/or other materials provided with the distribution.
*: * Neither the name of P. B. Labs nor the names of its contributors may
*: be used to endorse or promote products derived from this software
*: without specific prior written permission.
*:
*: THIS SOFTWARE IS PROVIDED BY PAUL C. BUETOW AS IS'' AND ANY EXPRESS OR
*: IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
*: WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
*: DISCLAIMED. IN NO EVENT SHALL PAUL C. BUETOW BE LIABLE FOR ANY DIRECT,
*: INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
*: (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
*: SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
*: HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
*: STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
*: IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
*: POSSIBILITY OF SUCH DAMAGE.
*:*/
#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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