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Viewing changes to contrib/ICSharpCode.NRefactory/TypeSystem/ISupportsInterning.cs

  • Committer: Package Import Robot
  • Author(s): Jo Shields
  • Date: 2013-05-12 09:46:03 UTC
  • mto: This revision was merged to the branch mainline in revision 29.
  • Revision ID: package-import@ubuntu.com-20130512094603-mad323bzcxvmcam0
Tags: upstream-4.0.5+dfsg
Import upstream version 4.0.5+dfsg

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contrib/ICSharpCode.NRefactory/TypeSystem/ISupportsInterning.cs
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// Copyright (c) AlphaSierraPapa for the SharpDevelop Team
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// 
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// Permission is hereby granted, free of charge, to any person obtaining a copy of this
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// software and associated documentation files (the "Software"), to deal in the Software
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// without restriction, including without limitation the rights to use, copy, modify, merge,
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// publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons
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// to whom the Software is furnished to do so, subject to the following conditions:
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// 
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// The above copyright notice and this permission notice shall be included in all copies or
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// substantial portions of the Software.
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// 
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
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// INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
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// PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
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// FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
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// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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// DEALINGS IN THE SOFTWARE.
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using System;
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using System.Collections.Generic;
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using System.Diagnostics.Contracts;
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namespace ICSharpCode.NRefactory.TypeSystem
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{
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        /// <summary>
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        /// Interface for TypeSystem objects that support interning.
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        /// See <see cref="IInterningProvider"/> for more information.
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        /// </summary>
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        #if WITH_CONTRACTS
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        [ContractClass(typeof(ISupportsInterningContract))]
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        #endif
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        public interface ISupportsInterning
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        {
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                /// <summary>
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                /// Interns child objects and strings.
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                /// </summary>
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                void PrepareForInterning(IInterningProvider provider);
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                /// <summary>
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                /// Gets a hash code for interning.
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                /// </summary>
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                int GetHashCodeForInterning();
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                /// <summary>
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                /// Equality test for interning.
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                /// </summary>
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                bool EqualsForInterning(ISupportsInterning other);
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        }
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        #if WITH_CONTRACTS
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        [ContractClassFor(typeof(ISupportsInterning))]
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        abstract class ISupportsInterningContract : ISupportsInterning
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        {
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                void ISupportsInterning.PrepareForInterning(IInterningProvider provider)
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                {
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                        Contract.Requires(provider != null);
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                }
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                int ISupportsInterning.GetHashCodeForInterning()
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                {
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                        return 0;
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                }
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                bool ISupportsInterning.EqualsForInterning(ISupportsInterning other)
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                {
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                        return false;
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                }
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        }
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        #endif
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}