//Copyright 2010 Microsoft Corporation
//
//Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License.
//You may obtain a copy of the License at
//
//http://www.apache.org/licenses/LICENSE-2.0
//
//Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an
//"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
//See the License for the specific language governing permissions and limitations under the License.
namespace System.Data.Services.Client{
using System;
using System.Diagnostics;
using System.Linq.Expressions;
[DebuggerDisplay("InputReferenceExpression -> {Type}")]
internal sealed class InputReferenceExpression : Expression
{
private ResourceExpression target;
internal InputReferenceExpression(ResourceExpression target)
: base((ExpressionType)ResourceExpressionType.InputReference, target.ResourceType)
{
Debug.Assert(target != null, "Target resource set cannot be null");
this.target = target;
}
internal ResourceExpression Target
{
get { return this.target; }
}
internal void OverrideTarget(ResourceSetExpression newTarget)
{
Debug.Assert(newTarget != null, "Resource set cannot be null");
Debug.Assert(newTarget.ResourceType.Equals(this.Type), "Cannot reference a resource set with a different resource type");
this.target = newTarget;
}
}
}
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