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// Copyright (c) 2010-2013 AlphaSierraPapa for the SharpDevelop Team
//
// Permission is hereby granted, free of charge, to any person obtaining a copy of this
// software and associated documentation files (the "Software"), to deal in the Software
// without restriction, including without limitation the rights to use, copy, modify, merge,
// publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons
// to whom the Software is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all copies or
// substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
// INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
// PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
// FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.
using System;
using ICSharpCode.NRefactory.CSharp.Resolver;
using ICSharpCode.NRefactory.Semantics;
using ICSharpCode.NRefactory.TypeSystem;
namespace ICSharpCode.NRefactory.CSharp.TypeSystem
{
/// <summary>
/// Looks up an alias (identifier in front of :: operator).
/// </summary>
/// <remarks>
/// The member lookup performed by the :: operator is handled
/// by <see cref="MemberTypeOrNamespaceReference"/>.
/// </remarks>
[Serializable]
public sealed class AliasNamespaceReference : TypeOrNamespaceReference, ISupportsInterning
{
readonly string identifier;
public AliasNamespaceReference(string identifier)
{
if (identifier == null)
throw new ArgumentNullException("identifier");
this.identifier = identifier;
}
public string Identifier {
get { return identifier; }
}
public override ResolveResult Resolve(CSharpResolver resolver)
{
return resolver.ResolveAlias(identifier);
}
public override IType ResolveType(CSharpResolver resolver)
{
// alias cannot refer to types
return SpecialType.UnknownType;
}
public override string ToString()
{
return identifier + "::";
}
int ISupportsInterning.GetHashCodeForInterning()
{
return identifier.GetHashCode();
}
bool ISupportsInterning.EqualsForInterning(ISupportsInterning other)
{
AliasNamespaceReference anr = other as AliasNamespaceReference;
return anr != null && this.identifier == anr.identifier;
}
}
}
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