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// Copyright (c) 2010-2013 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");
if (!IgnoreEntity(entity)) {
HashSet<AstNode> list;
if (!referenceDict.TryGetValue(entity, out list)) {
list = new HashSet<AstNode>();
referenceDict.Add(entity, list);
}
list.Add(node);
}
}
);
file.CreateResolver().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();
}
bool IgnoreEntity(IEntity entity)
{
return false;
//return entity.FullName != "ICSharpCode.NRefactory.TypeSystem.Implementation.DefaultResolvedTypeDefinition.parts";
}
Dictionary<SymbolKind, TimeSpan> timings = new Dictionary<SymbolKind, TimeSpan>();
Dictionary<SymbolKind, int> entityCount = new Dictionary<SymbolKind, int>();
void TestFindReferences(IEntity entity)
{
if (IgnoreEntity(entity))
return;
FindReferences fr = new FindReferences();
fr.FindTypeReferencesEvenIfAliased = true;
Stopwatch w = new Stopwatch();
var searchScopes = fr.GetSearchScopes(entity);
foreach (var project in solution.Projects) {
w.Restart();
HashSet<AstNode> foundReferences = new HashSet<AstNode>();
var interestingFiles = new HashSet<CSharpFile>();
foreach (var searchScope in searchScopes) {
foreach (var unresolvedFile in fr.GetInterestingFiles(searchScope, project.Compilation)) {
var file = project.Files.Single(f => f.FileName == unresolvedFile.FileName);
Debug.Assert(file.UnresolvedTypeSystemForFile == unresolvedFile);
// Skip file if it doesn't contain the search term
if (searchScope.SearchTerm != null && file.OriginalText.IndexOf(searchScope.SearchTerm, StringComparison.Ordinal) < 0)
continue;
interestingFiles.Add(file);
}
}
foreach (var file in interestingFiles) {
fr.FindReferencesInFile(searchScopes, file.UnresolvedTypeSystemForFile, file.SyntaxTree, project.Compilation,
delegate(AstNode node, ResolveResult result) {
foundReferences.Add(node);
}, CancellationToken.None);
}
w.Stop();
if (timings.ContainsKey(entity.SymbolKind)) {
timings[entity.SymbolKind] += w.Elapsed;
} else {
timings[entity.SymbolKind] = 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.GetRegion() + ")");
}
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.GetRegion() + ")");
}
}
if (entityCount.ContainsKey(entity.SymbolKind)) {
entityCount[entity.SymbolKind]++;
} else {
entityCount[entity.SymbolKind] = 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));
}
}
}
}
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