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Viewing changes to contrib/ICSharpCode.NRefactory/TypeSystem/ComHelper.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/ComHelper.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.Linq;
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using ICSharpCode.NRefactory.Semantics;
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namespace ICSharpCode.NRefactory.TypeSystem
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{
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        /// <summary>
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        /// Helper methods for COM.
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        /// </summary>
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        public static class ComHelper
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        {
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                static bool IsComAttribute(IAttribute attribute, string name)
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                {
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                        return attribute.AttributeType.Name == name && attribute.AttributeType.Namespace == "System.Runtime.InteropServices";
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                }
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                /// <summary>
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                /// Gets whether the specified type is imported from COM.
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                /// </summary>
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                public static bool IsComImport(ITypeDefinition typeDefinition)
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                {
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                        return typeDefinition != null
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                                && typeDefinition.Kind == TypeKind.Interface
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                                && typeDefinition.Attributes.Any(a => IsComAttribute(a, "ComImportAttribute"));
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                }
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                /// <summary>
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                /// Gets the CoClass of the specified COM interface.
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                /// </summary>
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                [System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Naming", "CA1709:IdentifiersShouldBeCasedCorrectly", MessageId = "Co",
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                                                                 Justification = "Consistent with CoClassAttribute")]
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                public static IType GetCoClass(ITypeDefinition typeDefinition)
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                {
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                        if (typeDefinition == null)
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                                return SpecialType.UnknownType;
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                        var coClassAttribute = typeDefinition.Attributes.FirstOrDefault(a => IsComAttribute(a, "CoClassAttribute"));
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                        if (coClassAttribute != null && coClassAttribute.PositionalArguments.Count == 1) {
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                                var rr = coClassAttribute.PositionalArguments[0] as TypeOfResolveResult;
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                                if (rr != null)
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                                        return rr.ReferencedType;
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                        }
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                        return SpecialType.UnknownType;
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                }
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        }
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}