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* Copyright (c) Microsoft Corporation.
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* you cannot locate the Microsoft Public License, please send an email to
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using System.Dynamic.Utils;
namespace System.Dynamic{
/// <summary>
/// Represents the dynamic delete index operation at the call site, providing the binding semantic and the details about the operation.
/// </summary>
public abstract class DeleteIndexBinder : DynamicMetaObjectBinder {
private readonly CallInfo _callInfo;
/// <summary>
/// Initializes a new instance of the <see cref="DeleteIndexBinder" />.
/// </summary>
/// <param name="callInfo">The signature of the arguments at the call site.</param>
protected DeleteIndexBinder(CallInfo callInfo) {
ContractUtils.RequiresNotNull(callInfo, "callInfo");
_callInfo = callInfo;
}
/// <summary>
/// The result type of the operation.
/// </summary>
public override sealed Type ReturnType {
get { return typeof(void); }
}
/// <summary>
/// Gets the signature of the arguments at the call site.
/// </summary>
public CallInfo CallInfo {
get { return _callInfo; }
}
/// <summary>
/// Performs the binding of the dynamic delete index operation.
/// </summary>
/// <param name="target">The target of the dynamic delete index operation.</param>
/// <param name="args">An array of arguments of the dynamic delete index operation.</param>
/// <returns>The <see cref="DynamicMetaObject"/> representing the result of the binding.</returns>
public sealed override DynamicMetaObject Bind(DynamicMetaObject target, DynamicMetaObject[] args) {
ContractUtils.RequiresNotNull(target, "target");
ContractUtils.RequiresNotNullItems(args, "args");
return target.BindDeleteIndex(this, args);
}
// this is a standard DynamicMetaObjectBinder
internal override sealed bool IsStandardBinder {
get {
return true;
}
}
/// <summary>
/// Performs the binding of the dynamic delete index operation if the target dynamic object cannot bind.
/// </summary>
/// <param name="target">The target of the dynamic delete index operation.</param>
/// <param name="indexes">The arguments of the dynamic delete index operation.</param>
/// <returns>The <see cref="DynamicMetaObject"/> representing the result of the binding.</returns>
public DynamicMetaObject FallbackDeleteIndex(DynamicMetaObject target, DynamicMetaObject[] indexes) {
return FallbackDeleteIndex(target, indexes, null);
}
/// <summary>
/// When overridden in the derived class, performs the binding of the dynamic delete index operation if the target dynamic object cannot bind.
/// </summary>
/// <param name="target">The target of the dynamic delete index operation.</param>
/// <param name="indexes">The arguments of the dynamic delete index operation.</param>
/// <param name="errorSuggestion">The binding result to use if binding fails, or null.</param>
/// <returns>The <see cref="DynamicMetaObject"/> representing the result of the binding.</returns>
public abstract DynamicMetaObject FallbackDeleteIndex(DynamicMetaObject target, DynamicMetaObject[] indexes, DynamicMetaObject errorSuggestion);
}
}
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