1 /* ****************************************************************************
3 * Copyright (c) Microsoft Corporation.
5 * This source code is subject to terms and conditions of the Microsoft Public License. A
6 * copy of the license can be found in the License.html file at the root of this distribution. If
7 * you cannot locate the Microsoft Public License, please send an email to
8 * dlr@microsoft.com. By using this source code in any fashion, you are agreeing to be bound
9 * by the terms of the Microsoft Public License.
11 * You must not remove this notice, or any other, from this software.
14 * ***************************************************************************/
15 using System; using Microsoft;
20 using System.Diagnostics;
22 using System.Linq.Expressions;
24 using Microsoft.Linq.Expressions;
28 namespace System.Dynamic {
30 namespace Microsoft.Scripting {
34 /// ArgBuilder which always produces null.
36 internal sealed class NullArgBuilder : ArgBuilder {
37 internal NullArgBuilder() { }
39 internal override Expression Marshal(Expression parameter) {
40 return Expression.Constant(null);