#include "object.h"
#include <stdarg.h>
#include <stdlib.h>
#include <stddef.h>
#include <gc/gc.h>

void * make_object(obj_meta * meta, void * parent, int num_props, ...)
{
	va_list args;
	object * newobj = GC_MALLOC(meta->size);
	newobj->meta = meta;
	newobj->parent = parent;

	va_start(args, num_props);
	object ** curprop = ((object **)(newobj + 1));
	for (; num_props > 0; num_props--)
	{
		*curprop = va_arg(args, object *);
		curprop++;
	}
	va_end(args);
	return newobj;
}

object * mcall(uint32_t method_id, uint32_t num_args, object * self, ...)
{
	va_list args;
	va_start(args, self);
	object * ret = self->meta->meth_lookup[method_id & 0xF](method_id, num_args, self, args);
	va_end(args);
	return ret;
}

int object_understands(object * obj, uint32_t method_id)
{
	uint32_t slot = method_id & 0xF;
	uint32_t *cur;
	if (!obj->meta->methods[slot]) {
		return 0;
	}
	for (cur = obj->meta->methods[slot]; *cur != LAST_METHOD; cur++) {
		if (*cur == method_id) {
			return 1;
		}
	}
	return 0;
}