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/*:*
*: File: ./src/core/symbol.c
*: A simple interpreter
*:
*: WWW : http://fype.buetow.org
*: E-Mail : fype@dev.buetow.org
*:
*: Copyright (c) 2005 2006 2007 2008, Paul C. 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 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 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.
*:*/
#include "symbol.h"
#include "../data/list.h"
#include "token.h"
Symbol*
symbol_new(SymbolType sym, void *p_val) {
Symbol *p_symbol = malloc(sizeof(Symbol));
p_symbol->sym = sym;
p_symbol->p_val = p_val;
p_symbol->i_refs = 1;
return p_symbol;
}
void
symbol_delete(Symbol *p_symbol) {
if (--p_symbol->i_refs == 0) {
switch (symbol_get_sym(p_symbol)) {
case SYM_PROCEDURE:
{
List *p_list_token = symbol_get_val(p_symbol);
list_delete(p_list_token);
}
break;
NO_DEFAULT;
}
free(p_symbol);
}
}
void
symbol_cleanup_hash_syms_cb(void *p_void) {
symbol_delete(p_void);
}
void
symbol_print(Symbol *p_symbol, char *c_key) {
printf("%s: %s", sym_get_name(p_symbol->sym), c_key);
switch (p_symbol->sym) {
case SYM_BUILDIN:
case SYM_CONSTANT:
break;
case SYM_PROCEDURE:
case SYM_FUNCTION:
//list_iterate(symbol_get_val(p_symbol), token_print_cb);
break;
case SYM_REFERENCE:
break;
case SYM_VARIABLE:
printf(" ");
token_print(symbol_get_val(p_symbol));
break;
}
printf("\n");
}
void
symbol_print_cb(void *p_void, char *c_key) {
symbol_print(p_void, c_key);
}
char*
sym_get_name(SymbolType sym) {
switch (sym) {
case SYM_CONSTANT:
return ("SYM_CONSTANT");
case SYM_REFERENCE:
return ("SYM_REFERENCE");
case SYM_VARIABLE:
return ("SYM_VARIABLE");
case SYM_BUILDIN:
return ("SYM_BUILDIN");
case SYM_PROCEDURE:
return ("SYM_PROCEDURE");
case SYM_FUNCTION:
return ("SYM_FUNCTION");
}
// Never reach this point
return ("NONE");
}
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