Add FindReferencesConsistencyCheck.

ICSharpCode.NRefactory.CSharp/Resolver/FindReferences.cs

@@ -292,7 +292,7 @@ namespace ICSharpCode.NRefactory.CSharp.Resolver
 			        where typeDef.IsDerivedFrom(referencedTypeDefinition)
 			        from part in typeDef.Parts
 			        select part.ParsedFile
-			       ).OfType<CSharpParsedFile>();
+			       ).OfType<CSharpParsedFile>().Distinct();
 		}
 		#endregion
 		

ICSharpCode.NRefactory.ConsistencyCheck/CSharpProject.cs

@@ -134,6 +134,11 @@ namespace ICSharpCode.NRefactory.ConsistencyCheck
 		{
 			return string.Format("[CSharpProject AssemblyName={0}]", AssemblyName);
 		}
+		
+		public CSharpFile GetFile(string fileName)
+		{
+			return Files.Single(f => f.FileName == fileName);
+		}
 	}
 	
 	public class ProjectReference : IAssemblyReference

ICSharpCode.NRefactory.ConsistencyCheck/FindReferencesConsistencyCheck.cs

@@ -0,0 +1,160 @@
+// Copyright (c) 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 System.Collections.Generic;
+using System.Diagnostics;
+using System.Linq;
+using System.Threading;
+using ICSharpCode.NRefactory.CSharp;
+using ICSharpCode.NRefactory.CSharp.Resolver;
+using ICSharpCode.NRefactory.Semantics;
+using ICSharpCode.NRefactory.TypeSystem;
+
+namespace ICSharpCode.NRefactory.ConsistencyCheck
+{
+	public class FindReferencesConsistencyCheck
+	{
+		readonly Solution solution;
+		Dictionary<IEntity, HashSet<AstNode>> referenceDict = new Dictionary<IEntity, HashSet<AstNode>>();
+		
+		public FindReferencesConsistencyCheck(Solution solution)
+		{
+			this.solution = solution;
+		}
+		
+		public void Run()
+		{
+			using (new Timer("Finding referenced entities...")) {
+				foreach (var file in solution.AllFiles) {
+					var navigator = new FindReferencedEntities(
+						delegate (AstNode node, IEntity entity) {
+							if (node == null)
+								throw new ArgumentNullException("node");
+							if (entity == null)
+								throw new ArgumentNullException("entity");
+							
+							HashSet<AstNode> list;
+							if (!referenceDict.TryGetValue(entity, out list)) {
+								list = new HashSet<AstNode>();
+								referenceDict.Add(entity, list);
+							}
+							list.Add(node);
+						}
+					);
+					var resolver = new CSharpAstResolver(file.Project.Compilation, file.CompilationUnit, file.ParsedFile);
+					resolver.ApplyNavigator(navigator);
+				}
+			}
+			Console.WriteLine("For each entity, find all references...");
+			Stopwatch w = Stopwatch.StartNew();
+			foreach (var project in solution.Projects) {
+				foreach (var type in project.Compilation.MainAssembly.GetAllTypeDefinitions()) {
+					TestFindReferences(type);
+					foreach (IMember m in type.Members) {
+						TestFindReferences(m);
+					}
+					Console.Write('.');
+				}
+			}
+			w.Stop();
+			Console.WriteLine("FindReferencesConsistencyCheck is done ({0}).", w.Elapsed);
+			PrintTimingsPerEntityType();
+		}
+		
+		Dictionary<EntityType, TimeSpan> timings = new Dictionary<EntityType, TimeSpan>();
+		Dictionary<EntityType, int> entityCount = new Dictionary<EntityType, int>();
+		
+		void TestFindReferences(IEntity entity)
+		{
+			FindReferences fr = new FindReferences();
+			fr.FindTypeReferencesEvenIfAliased = true;
+			
+			HashSet<AstNode> foundReferences = new HashSet<AstNode>();
+			
+			Stopwatch w = new Stopwatch();
+			var searchScopes = fr.GetSearchScopes(entity);
+			foreach (var project in solution.Projects) {
+				w.Restart();
+				var interestingFiles = new HashSet<CSharpFile>();
+				foreach (var searchScope in searchScopes) {
+					foreach (var parsedFile in fr.GetInterestingFiles(searchScope, project.Compilation)) {
+						var file = project.GetFile(parsedFile.FileName);
+						Debug.Assert(file.ParsedFile == parsedFile);
+						
+						// Skip file if it doesn't contain the search term
+						if (searchScope.SearchTerm != null && file.Content.IndexOf(searchScope.SearchTerm, 0, file.Content.TextLength, StringComparison.Ordinal) < 0)
+							continue;
+						
+						interestingFiles.Add(file);
+					}
+				}
+				foreach (var file in interestingFiles) {
+					fr.FindReferencesInFile(searchScopes, file.ParsedFile, file.CompilationUnit, project.Compilation,
+					                        delegate(AstNode node, ResolveResult result) {
+					                        	foundReferences.Add(node);
+					                        }, CancellationToken.None);
+				}
+				w.Stop();
+				if (timings.ContainsKey(entity.EntityType)) {
+					timings[entity.EntityType] += w.Elapsed;
+				} else {
+					timings[entity.EntityType] = w.Elapsed;
+				}
+				
+				
+				IEntity importedEntity = project.Compilation.Import(entity);
+				
+				HashSet<AstNode> expectedReferences;
+				if (importedEntity == null || !referenceDict.TryGetValue(importedEntity, out expectedReferences)) {
+					if (foundReferences.Any()) {
+						// There aren't any expected references stored, but we found some references anyways:
+						Console.WriteLine();
+						Console.WriteLine("Entity not in reference dictionary: " + entity);
+					}
+					return;
+				}
+				if (foundReferences.Except(expectedReferences).Any()) {
+					Console.WriteLine();
+					Console.WriteLine("Reference mismatch for " + entity + ":");
+					var n = foundReferences.Except(expectedReferences).First();
+					Console.WriteLine("Found unexpected reference " + n + " (" + n.StartLocation + ")");
+				}
+				if (expectedReferences.Except(foundReferences).Any()) {
+					Console.WriteLine();
+					Console.WriteLine("Reference mismatch for " + entity + ":");
+					var n = expectedReferences.Except(foundReferences).First();
+					Console.WriteLine("Did not find expected reference " + n + " (" + n.StartLocation + ")");
+				}
+			}
+			
+			if (entityCount.ContainsKey(entity.EntityType)) {
+				entityCount[entity.EntityType]++;
+			} else {
+				entityCount[entity.EntityType] = 1;
+			}
+		}
+		
+		void PrintTimingsPerEntityType()
+		{
+			foreach (var pair in entityCount) {
+				Console.WriteLine("{0} - avg. {1} per entity", pair.Key, TimeSpan.FromSeconds(timings[pair.Key].TotalSeconds / pair.Value));
+			}
+		}
+	}
+}

ICSharpCode.NRefactory.ConsistencyCheck/ICSharpCode.NRefactory.ConsistencyCheck.csproj

@@ -48,6 +48,7 @@
   </ItemGroup>
   <ItemGroup>
     <Compile Include="CSharpProject.cs" />
+    <Compile Include="FindReferencesConsistencyCheck.cs" />
     <Compile Include="Program.cs" />
     <Compile Include="Properties\AssemblyInfo.cs" />
     <Compile Include="RandomizedOrderResolverTest.cs" />

ICSharpCode.NRefactory.ConsistencyCheck/Program.cs

@@ -57,8 +57,9 @@ namespace ICSharpCode.NRefactory.ConsistencyCheck
 			                  solution.Projects.Count);
 			
 			//RunTestOnAllFiles("Roundtripping test", RoundtripTest.RunTest);
-			RunTestOnAllFiles("Resolver test", ResolverTest.RunTest);
-			RunTestOnAllFiles("Resolver test (randomized order)", RandomizedOrderResolverTest.RunTest);
+			//RunTestOnAllFiles("Resolver test", ResolverTest.RunTest);
+			//RunTestOnAllFiles("Resolver test (randomized order)", RandomizedOrderResolverTest.RunTest);
+			new FindReferencesConsistencyCheck(solution).Run();
 			
 			Console.Write("Press any key to continue . . . ");
 			Console.ReadKey(true);
@@ -79,20 +80,20 @@ namespace ICSharpCode.NRefactory.ConsistencyCheck
 		{
 			return assemblyDict.GetOrAdd(assemblyFileName, file => new CecilLoader().LoadAssemblyFile(file));
 		}
+	}
+	
+	sealed class Timer : IDisposable
+	{
+		Stopwatch w = Stopwatch.StartNew();
 		
-		sealed class Timer : IDisposable
+		public Timer(string title)
 		{
-			Stopwatch w = Stopwatch.StartNew();
-			
-			public Timer(string title)
-			{
-				Console.Write(title);
-			}
-			
-			public void Dispose()
-			{
-				Console.WriteLine(w.Elapsed);
-			}
+			Console.Write(title);
+		}
+		
+		public void Dispose()
+		{
+			Console.WriteLine(w.Elapsed);
 		}
 	}
 }