GetIndexBinder.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 / GetIndexBinder.cs / 1305376 / GetIndexBinder.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.Dynamic.Utils; 
 
namespace System.Dynamic {
 
    /// 
    /// Represents the dynamic get index operation at the call site, providing the binding semantic and the details about the operation.
    /// 
    public abstract class GetIndexBinder : DynamicMetaObjectBinder { 
        private readonly CallInfo _callInfo;
 
        ///  
        /// Initializes a new instance of the .
        ///  
        /// The signature of the arguments at the call site.
        protected GetIndexBinder(CallInfo callInfo) {
            ContractUtils.RequiresNotNull(callInfo, "callInfo");
            _callInfo = callInfo; 
        }
 
        ///  
        /// The result type of the operation.
        ///  
        public override sealed Type ReturnType {
            get { return typeof(object); }
        }
 
        /// 
        /// Gets the signature of the arguments at the call site. 
        ///  
        public CallInfo CallInfo {
            get { return _callInfo; } 
        }

        /// 
        /// Performs the binding of the dynamic get index operation. 
        /// 
        /// The target of the dynamic get index operation. 
        /// An array of arguments of the dynamic get index operation. 
        /// The  representing the result of the binding.
        public sealed override DynamicMetaObject Bind(DynamicMetaObject target, DynamicMetaObject[] args) { 
            ContractUtils.RequiresNotNull(target, "target");
            ContractUtils.RequiresNotNullItems(args, "args");

            return target.BindGetIndex(this, args); 
        }
 
        // this is a standard DynamicMetaObjectBinder 
        internal override sealed bool IsStandardBinder {
            get { 
                return true;
            }
        }
 
        /// 
        /// Performs the binding of the dynamic get index operation if the target dynamic object cannot bind. 
        ///  
        /// The target of the dynamic get index operation.
        /// The arguments of the dynamic get index operation. 
        /// The  representing the result of the binding.
        public DynamicMetaObject FallbackGetIndex(DynamicMetaObject target, DynamicMetaObject[] indexes) {
            return FallbackGetIndex(target, indexes, null);
        } 

        ///  
        /// When overridden in the derived class, performs the binding of the dynamic get index operation if the target dynamic object cannot bind. 
        /// 
        /// The target of the dynamic get index operation. 
        /// The arguments of the dynamic get index operation.
        /// The binding result to use if binding fails, or null.
        /// The  representing the result of the binding.
        public abstract DynamicMetaObject FallbackGetIndex(DynamicMetaObject target, DynamicMetaObject[] indexes, DynamicMetaObject errorSuggestion); 
    }
} 

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

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