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* Copyright (c) Microsoft Corporation.
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* 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.
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using System.Dynamic.Utils;
namespace System.Dynamic{
/// <summary>
/// Represents the dynamic set member operation at the call site, providing the binding semantic and the details about the operation.
/// </summary>
public abstract class SetMemberBinder : DynamicMetaObjectBinder {
private readonly string _name;
private readonly bool _ignoreCase;
/// <summary>
/// Initializes a new instance of the <see cref="SetMemberBinder" />.
/// </summary>
/// <param name="name">The name of the member to get.</param>
/// <param name="ignoreCase">true if the name should be matched ignoring case; false otherwise.</param>
protected SetMemberBinder(string name, bool ignoreCase) {
ContractUtils.RequiresNotNull(name, "name");
_name = name;
_ignoreCase = ignoreCase;
}
/// <summary>
/// The result type of the operation.
/// </summary>
public override sealed Type ReturnType {
get { return typeof(object); }
}
/// <summary>
/// Gets the name of the member to get.
/// </summary>
public string Name {
get {
return _name;
}
}
/// <summary>
/// Gets the value indicating if the string comparison should ignore the case of the member name.
/// </summary>
public bool IgnoreCase {
get {
return _ignoreCase;
}
}
/// <summary>
/// Performs the binding of the dynamic set member operation.
/// </summary>
/// <param name="target">The target of the dynamic set member operation.</param>
/// <param name="args">An array of arguments of the dynamic set member 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.RequiresNotNull(args, "args");
ContractUtils.Requires(args.Length == 1, "args");
var arg0 = args[0];
ContractUtils.RequiresNotNull(arg0, "args");
return target.BindSetMember(this, arg0);
}
// this is a standard DynamicMetaObjectBinder
internal override sealed bool IsStandardBinder {
get {
return true;
}
}
/// <summary>
/// Performs the binding of the dynamic set member operation if the target dynamic object cannot bind.
/// </summary>
/// <param name="target">The target of the dynamic set member operation.</param>
/// <param name="value">The value to set to the member.</param>
/// <returns>The <see cref="DynamicMetaObject"/> representing the result of the binding.</returns>
public DynamicMetaObject FallbackSetMember(DynamicMetaObject target, DynamicMetaObject value) {
return FallbackSetMember(target, value, null);
}
/// <summary>
/// Performs the binding of the dynamic set member operation if the target dynamic object cannot bind.
/// </summary>
/// <param name="target">The target of the dynamic set member operation.</param>
/// <param name="value">The value to set to the member.</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 FallbackSetMember(DynamicMetaObject target, DynamicMetaObject value, DynamicMetaObject errorSuggestion);
}
}
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