quakeforge/tools/qfcc/source/shared.c

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/*
qc-parse.y
parser for quakec
Copyright (C) 2012 Bill Currie <bill@taniwha.org>
Author: Bill Currie <bill@taniwha.org>
Date: 2012/10/26
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to:
Free Software Foundation, Inc.
59 Temple Place - Suite 330
Boston, MA 02111-1307, USA
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include "tools/qfcc/include/class.h"
#include "tools/qfcc/include/diagnostic.h"
#include "tools/qfcc/include/expr.h"
#include "tools/qfcc/include/function.h"
#include "tools/qfcc/include/options.h"
#include "tools/qfcc/include/shared.h"
#include "tools/qfcc/include/symtab.h"
#include "tools/qfcc/include/type.h"
function_t *current_func;
class_type_t *current_class;
expr_t *local_expr;
vis_t current_visibility;
storage_class_t current_storage = sc_global;
symtab_t *current_symtab;
/* When defining a new symbol, already existing symbols must be in a
different scope. However, when they are in a different scope, we want a
truly new symbol.
*/
symbol_t *
check_redefined (symbol_t *sym)
{
if (sym->table == current_symtab)
error (0, "%s redefined", sym->name);
if (sym->table) // truly new symbols are not in any symbol table
sym = new_symbol (sym->name);
return sym;
}
/* Check for undefined symbols. If the symbol is undefined, default its type
to float or int, depending on compiler mode.
*/
symbol_t *
check_undefined (symbol_t *sym)
{
if (!sym->table) { // truly new symbols are not in any symbol table
error (0, "%s undefined", sym->name);
if (options.code.progsversion == PROG_ID_VERSION)
sym->type = &type_float;
else
sym->type = &type_integer;
}
return sym;
}