/*
lwasm.c

Copyright © 2010 William Astle

This file is part of LWTOOLS.

LWTOOLS 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 3 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, see <http://www.gnu.org/licenses/>.
*/

#define ___lwasm_c_seen___

#include <config.h>

#include <stdio.h>
#include <stdarg.h>

#include <lw_expr.h>
#include <lw_alloc.h>
#include <lw_string.h>

#include "lwasm.h"

lw_expr_t lwasm_evaluate_var(char *var)
{
	return NULL;
}

lw_expr_t lwasm_evaluate_special(int t, void *ptr)
{
	switch (t)
	{
	case lwasm_expr_linelen:
		{
			line_t *cl = ptr;
			if (cl -> len == -1)
				return NULL;
			return lw_expr_build(lw_expr_type_int, cl -> len);
		}
		break;
	}
	return NULL;
}

void lwasm_register_error(asmstate_t *as, line_t *l, const char *msg, ...)
{
	lwasm_error_t *e;
	va_list args;
	char errbuff[1024];
	int r;
	
	if (!l)
		return;

	va_start(args, msg);
	
	e = lw_alloc(sizeof(lwasm_error_t));
	
	e -> next = l -> err;
	l -> err = e;
	
	as -> errorcount++;
	
	r = vsnprintf(errbuff, 1024, msg, args);
	e -> mess = lw_strdup(errbuff);
	
	va_end(args);
}

int lwasm_next_context(asmstate_t *as)
{
	int r;
	r = as -> nextcontext;
	as -> nextcontext++;
	return r;
}