File: ParameterInfoWrapper.cs

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/* ****************************************************************************
 *
 * Copyright (c) Microsoft Corporation. 
 *
 * This source code is subject to terms and conditions of the Microsoft Public License. A 
 * copy of the license can be found in the License.html file at the root of this distribution. If 
 * you cannot locate the  Microsoft Public License, please send an email to 
 * dlr@microsoft.com. By using this source code in any fashion, you are agreeing to be bound 
 * by the terms of the Microsoft Public License.
 *
 * You must not remove this notice, or any other, from this software.
 *
 *
 * ***************************************************************************/

using System;
using System.Reflection;
using Microsoft.Scripting.Utils;

namespace Microsoft.Scripting.Generation {
    /// <summary>
    /// This helper type lets us build a fake ParameterInfo object with a specific type and name
    /// to pass along to methods that expect ParameterInfos.  This is currently found useful
    /// for the NewTypeMaker code and may be useful in other situations as well.
    /// </summary>
    public class ParameterInfoWrapper : ParameterInfo {
        private Type _type;
        private string _name;

        public ParameterInfoWrapper(Type parameterType) {
            _type = parameterType;
        }

        public ParameterInfoWrapper(Type parameterType, string parameterName) {
            _type = parameterType;
            _name = parameterName;
        }

        public override Type ParameterType {
            get {
                return _type;
            }
        }

        public override string Name {
            get {
                if (_name != null) return _name;

                return base.Name;
            }
        }

        public override object[] GetCustomAttributes(bool inherit) {
            return ArrayUtils.EmptyObjects;
        }

        public override object[] GetCustomAttributes(Type attributeType, bool inherit) {
            return ArrayUtils.EmptyObjects;
        }
    }

}