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Viewing changes to contrib/ICSharpCode.NRefactory.CSharp/Resolver/FindReferencedEntities.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.CSharp/Resolver/FindReferencedEntities.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 ICSharpCode.NRefactory.Semantics;
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using ICSharpCode.NRefactory.TypeSystem;
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namespace ICSharpCode.NRefactory.CSharp.Resolver
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{
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        /// <summary>
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        /// Find all entities that are referenced in the scanned AST.
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        /// </summary>
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        public sealed class FindReferencedEntities : IResolveVisitorNavigator
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        {
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                readonly Action<AstNode, IMember> memberReferenceFound;
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                readonly Action<AstNode, IType> typeReferenceFound;
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                /// <summary>
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                /// Creates a new FindReferencedEntities instance that
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                /// looks for entity definitions.
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                /// The visitor will report type definitions and member definitions (not specialized members).
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                /// </summary>
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                public FindReferencedEntities(Action<AstNode, IEntity> referenceFound)
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                {
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                        if (referenceFound == null)
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                                throw new ArgumentNullException("referenceFound");
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                        this.memberReferenceFound = (node, member) => referenceFound(node, member.MemberDefinition);
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                        this.typeReferenceFound = (node, type) => {
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                                var def = type.GetDefinition();
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                                if (def != null)
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                                        referenceFound(node, def);
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                        };
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                }
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                /// <summary>
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                /// Creates a new FindReferencedEntities instance that
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                /// looks for types and members.
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                /// The visitor will report parameterized types and potentially specialized members.
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                /// </summary>
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                public FindReferencedEntities(Action<AstNode, IType> typeReferenceFound, Action<AstNode, IMember> memberReferenceFound)
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                {
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                        if (typeReferenceFound == null)
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                                throw new ArgumentNullException("typeReferenceFound");
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                        if (memberReferenceFound == null)
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                                throw new ArgumentNullException("memberReferenceFound");
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                        this.typeReferenceFound = typeReferenceFound;
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                        this.memberReferenceFound = memberReferenceFound;
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                }
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                public ResolveVisitorNavigationMode Scan(AstNode node)
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                {
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                        return ResolveVisitorNavigationMode.Resolve;
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                }
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                public void Resolved(AstNode node, ResolveResult result)
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                {
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                        if (ParenthesizedExpression.ActsAsParenthesizedExpression(node))
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                                return;
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                        MemberResolveResult mrr = result as MemberResolveResult;
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                        if (mrr != null) {
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                                memberReferenceFound(node, mrr.Member);
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                        }
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                        TypeResolveResult trr = result as TypeResolveResult;
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                        if (trr != null) {
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                                typeReferenceFound(node, trr.Type);
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                        }
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                        ForEachResolveResult ferr = result as ForEachResolveResult;
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                        if (ferr != null) {
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                                Resolved(node, ferr.GetEnumeratorCall);
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                                if (ferr.CurrentProperty != null)
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                                        memberReferenceFound(node, ferr.CurrentProperty);
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                                if (ferr.MoveNextMethod != null)
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                                        memberReferenceFound(node, ferr.MoveNextMethod);
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                        }
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                }
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                public void ProcessConversion(Expression expression, ResolveResult result, Conversion conversion, IType targetType)
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                {
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                        if (conversion.IsUserDefined || conversion.IsMethodGroupConversion) {
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                                memberReferenceFound(expression, conversion.Method);
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                        }
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                }
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        }
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}