CallInfo.cs source code in C# .NET

Source code for the .NET framework in C#

                        
Code:

                         / 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / fx / src / Core / Microsoft / Scripting / Actions / CallInfo.cs / 1305376 / CallInfo.cs
                        

                        
                            /* **************************************************************************** 
 *
 * 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.Collections.Generic; 
using System.Collections.ObjectModel; 
using System.Dynamic.Utils;
using System.Linq.Expressions; 

#if SILVERLIGHT
using System.Core;
#endif //SILVERLIGHT 

namespace System.Dynamic { 
 
    /// 
    /// Describes arguments in the dynamic binding process. 
    /// 
    /// 
    /// ArgumentCount - all inclusive number of arguments.
    /// ArgumentNames - names for those arguments that are named. 
    ///
    /// Argument names match to the argument values in left to right order 
    /// and last name corresponds to the last argument. 
    ///
    /// Example: 
    ///   Foo(arg1, arg2, arg3, name1 = arg4, name2 = arg5, name3 = arg6)
    ///
    ///   will correspond to:
    ///    ArgumentCount: 6 
    ///    ArgumentNames: {"name1", "name2", "name3"}
    ///  
    public sealed class CallInfo { 
        private readonly int _argCount;
        private readonly ReadOnlyCollection _argNames; 

        /// 
        /// Creates a new PositionalArgumentInfo.
        ///  
        /// The number of arguments.
        /// The argument names. 
        /// The new CallInfo 
        public CallInfo(int argCount, params string[] argNames)
            : this(argCount, (IEnumerable)argNames) { 
        }

        /// 
        /// Creates a new CallInfo that represents arguments in the dynamic binding process. 
        /// 
        /// The number of arguments. 
        /// The argument names. 
        /// The new CallInfo
        public CallInfo(int argCount, IEnumerable argNames) { 
            ContractUtils.RequiresNotNull(argNames, "argNames");

            var argNameCol = argNames.ToReadOnly();
 
            if (argCount < argNameCol.Count) throw Error.ArgCntMustBeGreaterThanNameCnt();
            ContractUtils.RequiresNotNullItems(argNameCol, "argNames"); 
 
            _argCount = argCount;
            _argNames = argNameCol; 
        }

        /// 
        /// The number of arguments. 
        /// 
        public int ArgumentCount { 
            get { return _argCount; } 
        }
 
        /// 
        /// The argument names.
        /// 
        public ReadOnlyCollection ArgumentNames { 
            get { return _argNames; }
        } 
 
        /// 
        /// Serves as a hash function for the current CallInfo. 
        /// 
        /// A hash code for the current CallInfo.
        public override int GetHashCode() {
            return _argCount ^ _argNames.ListHashCode(); 
        }
 
        ///  
        /// Determines whether the specified CallInfo instance is considered equal to the current.
        ///  
        /// The instance of CallInfo to compare with the current instance.
        /// true if the specified instance is equal to the current one otherwise, false.
        public override bool Equals(object obj) {
            var other = obj as CallInfo; 
            return _argCount == other._argCount && _argNames.ListEquals(other._argNames);
        } 
    } 
}

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
// Copyright (c) Microsoft Corporation. All rights reserved.

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