#include "environment.h"
#include "gc.h"
#include "objects.h"

// Global garbage collector singleton.
static GC gc;

// Special singleton Objects.
static Object *obj_nil;
static Object *obj_true;
static Object *obj_false;
static Object *obj_err;
static Object *obj_quote;
static Object *proc_if;

// Global environment.
static Environment *global_env;