runtime: fix memory leaks

bshell.runtime/runtime/runtime.c

@@ -21,6 +21,10 @@ struct bshell_runtime *bshell_runtime_create(void)
 
 void bshell_runtime_destroy(struct bshell_runtime *rt)
 {
+	while (!fx_queue_empty(&rt->rt_scope)) {
+		runtime_pop_scope(rt);
+	}
+
 	fx_hashtable_unref(rt->rt_aliases);
 	free(rt);
 }
@@ -63,6 +67,31 @@ bshell_variable *bshell_runtime_define_var(
 	return var;
 }
 
+enum bshell_status bshell_runtime_define_function(
+	struct bshell_runtime *rt,
+	bshell_function *func)
+{
+	struct bshell_runtime_scope *scope = runtime_get_scope(rt);
+	if (!scope) {
+		return BSHELL_ERR_BAD_STATE;
+	}
+
+	fx_string *name
+		= fx_string_create_from_cstr(bshell_function_get_name(func));
+	if (!name) {
+		return BSHELL_ERR_NO_MEMORY;
+	}
+
+	fx_string_transform_lowercase(name);
+	fx_hashtable_put(
+		scope->s_functions,
+		&FX_VALUE_OBJECT(name),
+		&FX_VALUE_OBJECT(func));
+	fx_string_unref(name);
+
+	return BSHELL_SUCCESS;
+}
+
 bshell_command *bshell_runtime_find_command(
 	struct bshell_runtime *rt,
 	const char *callable_name)