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Viewing changes to src/addins/MonoDevelop.Refactoring/MonoDevelop.Refactoring/ReferencesFinder.cs

  • Committer: Bazaar Package Importer
  • Author(s): Jo Shields
  • Date: 2011-06-27 17:03:13 UTC
  • mto: (1.8.1 upstream)
  • mto: This revision was merged to the branch mainline in revision 54.
  • Revision ID: james.westby@ubuntu.com-20110627170313-6cvz3s19x6e9hqe9
Import upstream version 2.5.92+dfsg

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src/addins/MonoDevelop.Refactoring/MonoDevelop.Refactoring/ReferencesFinder.cs
 
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// 
 
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// ReferencesFinder.cs
 
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//  
 
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// Author:
 
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//       Mike Krüger <mkrueger@novell.com>
 
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// 
 
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// Copyright (c) 2010 Novell, Inc (http://www.novell.com)
 
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// 
 
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// Permission is hereby granted, free of charge, to any person obtaining a copy
 
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// of this software and associated documentation files (the "Software"), to deal
 
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// in the Software without restriction, including without limitation the rights
 
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 
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// copies of the Software, and to permit persons to whom the Software is
 
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// 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
 
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// all copies or 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
 
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 
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// THE SOFTWARE.
 
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/*
 
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 This is a new approach for speeding up find all reference - it does a full text search & then it resolves the found expression.
 
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 Unfortunately this isn't as exact as the current approach - but this should be used if the resolver is more exact & capable of
 
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 'looking around'.
 
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using System;
 
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using System.Collections.Generic;
 
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using Mono.TextEditor;
 
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using MonoDevelop.Projects.Dom;
 
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using MonoDevelop.Core;
 
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using MonoDevelop.Projects.Dom.Parser;
 
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using MonoDevelop.Ide;
 
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namespace MonoDevelop.Refactoring.References
 
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{
 
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        public class MemberReference
 
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        {
 
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                public FilePath FileName {
 
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                        get;
 
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                        set;
 
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                }
 
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                public ITextEditorDataProvider DataProvider {
 
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                        get;
 
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                        set;
 
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                }
 
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                public DocumentLocation Location {
 
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                        get;
 
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                        set;
 
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                }
 
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                public int Offset {
 
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                        get;
 
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                        set;
 
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                }
 
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                public int Length {
 
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                        get;
 
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                        set;
 
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                }
 
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                public MemberReference (FilePath fileName, ITextEditorDataProvider dataProvider, DocumentLocation location, int offset, int length)
 
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                {
 
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                        this.FileName = fileName;
 
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                        this.DataProvider = dataProvider;
 
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                        this.Location = location;
 
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                        this.Offset = offset;
 
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                        this.Length = length;
 
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                }
 
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        }
 
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        public enum RefactoryScope
 
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        {
 
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                File,
 
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                Project,
 
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                Solution,
 
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                DeclaringType
 
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        }
 
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        public static class ReferencesFinder
 
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        {
 
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                public static IEnumerable<MemberReference> GetReferences (IMember member)
 
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                {
 
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                        IType type = member is IType ? (IType)member : member.DeclaringType;
 
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                        if (type == null) {
 
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                                LoggingService.LogError ("Declaring type of '" + member + "' not found.");
 
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                                yield break;
 
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                        }
 
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                        var matcher = GetReferenceMatcher (member);
 
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                        foreach (var fileInfo in GetFileNames (member)) {
 
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                                var textFile = TextFileProvider.Instance.GetEditableTextFile (fileInfo.FileName);
 
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                                if (textFile.Text == null) // file not found
 
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                                        continue;
 
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                                var expressionFinder = ProjectDomService.GetExpressionFinder (fileInfo.FileName);
 
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                                foreach (var match in matcher.Search (textFile.Text)) {
 
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                                        var data = (textFile as ITextEditorDataProvider).GetTextEditorData ();
 
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                                        ExpressionResult expr = expressionFinder.FindFullExpression (data, match.Offset);
 
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                                        if (expr.Expression == null) 
 
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                                                continue;
 
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                                        var resolver = ProjectDomService.GetParser (fileInfo.FileName).CreateResolver (fileInfo.Dom, data, fileInfo.FileName);
 
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                                        var location = data.Document.OffsetToLocation (match.Offset);
 
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                                        ResolveResult resolveResult = resolver.Resolve (expr, new DomLocation (location.Line, location.Column));
 
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                                        // TODO: Add IsReferenceTo in the resolve results - could could be taken from FindMemberAstVisitor
 
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                                        if (resolveResult != null && resolveResult.IsReferenceTo (member))
 
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                                                yield return new MemberReference (fileInfo.FileName, (textFile as ITextEditorDataProvider), location, match.Position, match.Length);
 
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                                }
 
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                        }
 
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                }
 
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                public static  IReferenceMatcher GetReferenceMatcher (IMember member)
 
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                {
 
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                        IMethod method = member as IMethod;
 
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                        if (method != null) {
 
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                                if (method.IsConstructor) {
 
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                                        return new AggregatedReferenceMatcher (
 
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                                                new WholeWordMatcher (member.DeclaringType.Name),
 
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                                                new WholeWordMatcher ("this"),
 
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                                                new WholeWordMatcher ("base")
 
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                                        );
 
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                                }
 
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                                if (method.IsFinalizer)
 
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                                        return new WholeWordMatcher (member.DeclaringType.Name);
 
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                        }
 
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                        IProperty property = member as IProperty;
 
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                        if (property != null && property.IsIndexer) 
 
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                                return new IndexBeforeReferenceMatcher ("[");
 
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                        return new WholeWordMatcher (member.Name);
 
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                }
 
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                static RefactoryScope GetScope (IMember member)
 
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                {
 
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                        if (member.DeclaringType != null && member.DeclaringType.ClassType == ClassType.Interface)
 
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                                return GetScope (member.DeclaringType);
 
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                        if (member.IsPublic)
 
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                                return RefactoryScope.Solution;
 
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                        if (member.IsProtected || member.IsInternal || member.DeclaringType == null)
 
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                                return RefactoryScope.Project;
 
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                        return RefactoryScope.DeclaringType;
 
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                }
 
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        }
 
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        public struct ReferenceMatch
 
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        {
 
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                public readonly int Offset;
 
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                public readonly int Length;
 
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                public ReferenceMatch (int offset, int length)
 
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                {
 
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                        this.Offset = offset;
 
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                        this.Length = length;
 
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                }
 
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        }
 
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174
        public interface IReferenceMatcher
 
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        {
 
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                IEnumerable<ReferenceMatch> Search (string inputText);
 
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        }
 
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179
        class WholeWordMatcher : IReferenceMatcher
 
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        {
 
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                string pattern;
 
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183
                public WholeWordMatcher (string pattern)
 
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                {
 
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                        this.pattern = pattern;
 
186
                }
 
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                public IEnumerable<ReferenceMatch> Search (string inputText)
 
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                {
 
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                        if (pattern.Length == 0)
 
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                                yield break;
 
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                        int pos = -1;
 
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                        while ((pos = inputText.IndexOf (pattern, pos + 1)) >= 0) {
 
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                                if (pos > 0 && char.IsLetterOrDigit (inputText, pos - 1) ||
 
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                                        pos < inputText.Length - pattern.Length - 1 && char.IsLetterOrDigit (inputText, pos + pattern.Length))
 
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                                        continue;
 
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                                yield return new ReferenceMatch (pos, pattern.Length);
 
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                        }
 
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                }
 
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        }
 
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        class AggregatedReferenceMatcher : IReferenceMatcher
 
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        {
 
204
                IEnumerable<IReferenceMatcher> referenceMatcher;
 
205
                
 
206
                public AggregatedReferenceMatcher (params IReferenceMatcher[] matcher)
 
207
                {
 
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                        this.referenceMatcher = matcher;
 
209
                }
 
210
                
 
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                public AggregatedReferenceMatcher (IEnumerable<IReferenceMatcher> matcher)
 
212
                {
 
213
                        this.referenceMatcher = matcher;
 
214
                }
 
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216
                public IEnumerable<ReferenceMatch> Search (string inputText)
 
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                {
 
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                        foreach (IReferenceMatcher matcher in referenceMatcher) {
 
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                                foreach (ReferenceMatch match in matcher.Search (inputText)) {
 
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                                        yield return match;
 
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                                }
 
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                        }
 
223
                }
 
224
        }
 
225
        
 
226
        class IndexBeforeReferenceMatcher : IReferenceMatcher
 
227
        {
 
228
                string tag;
 
229
                
 
230
                public IndexBeforeReferenceMatcher (string tag)
 
231
                {
 
232
                        this.tag = tag;
 
233
                }
 
234
                
 
235
                public IEnumerable<ReferenceMatch> Search (string inputText)
 
236
                {
 
237
                        int pos = -1;
 
238
                        while ((pos = inputText.IndexOf (tag, pos + 1)) >= 0) {
 
239
                                yield return new ReferenceMatch (pos - 1, tag.Length);
 
240
                        }
 
241
                }
 
242
        }
 
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}*/
 
 
b'\\ No newline at end of file'