// Copyright 2015 The Vanadium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

var unwrap = require('../vdl/type-util').unwrap;
var kind = require('../vdl/kind');

module.exports = unwrapArg;

/**
 * Unwrap decoded value into the format expected for args.
 * Specifically, the outermost layer is unwrapped iff the target
 * type is not any.
 * @private
 * @param {*} arg The argument.
 * @param {Type} targetType The VDL type for the argument.
 * @return {*} either arg or an unwrapped arg.
 */
function unwrapArg(arg, targetType) {
    if (targetType.kind === kind.ANY) {
      return arg;
    }
    return unwrap(arg);
}