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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 Apache License, Version 2.0, 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 Apache License, Version 2.0.
*
* You must not remove this notice, or any other, from this software.
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using System.Dynamic.Utils;
namespace System.Dynamic {
///
/// Represents the dynamic set member operation at the call site, providing the binding semantic and the details about the operation.
///
public abstract class SetMemberBinder : DynamicMetaObjectBinder {
private readonly string _name;
private readonly bool _ignoreCase;
///
/// Initializes a new instance of the .
///
/// The name of the member to get.
/// true if the name should be matched ignoring case; false otherwise.
protected SetMemberBinder(string name, bool ignoreCase) {
ContractUtils.RequiresNotNull(name, "name");
_name = name;
_ignoreCase = ignoreCase;
}
///
/// The result type of the operation.
///
public override sealed Type ReturnType {
get { return typeof(object); }
}
///
/// Gets the name of the member to get.
///
public string Name {
get {
return _name;
}
}
///
/// Gets the value indicating if the string comparison should ignore the case of the member name.
///
public bool IgnoreCase {
get {
return _ignoreCase;
}
}
///
/// Performs the binding of the dynamic set member operation.
///
/// The target of the dynamic set member operation.
/// An array of arguments of the dynamic set member operation.
/// The representing the result of the binding.
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;
}
}
///
/// Performs the binding of the dynamic set member operation if the target dynamic object cannot bind.
///
/// The target of the dynamic set member operation.
/// The value to set to the member.
/// The representing the result of the binding.
public DynamicMetaObject FallbackSetMember(DynamicMetaObject target, DynamicMetaObject value) {
return FallbackSetMember(target, value, null);
}
///
/// Performs the binding of the dynamic set member operation if the target dynamic object cannot bind.
///
/// The target of the dynamic set member operation.
/// The value to set to the member.
/// The binding result to use if binding fails, or null.
/// The representing the result of the binding.
public abstract DynamicMetaObject FallbackSetMember(DynamicMetaObject target, DynamicMetaObject value, DynamicMetaObject errorSuggestion);
}
}