private async Task <bool> CheckForConflictAsync(
ConflictResolution conflictResolution,
ISymbol renamedSymbolInNewSolution,
Document newDocument,
RenameActionAnnotation conflictAnnotation,
IEnumerable <ISymbol> newReferencedSymbols)
{
try
{
bool hasConflict;
var solution = conflictResolution.NewSolution;
if (conflictAnnotation.IsNamespaceDeclarationReference)
{
hasConflict = false;
}
else if (conflictAnnotation.IsMemberGroupReference)
{
if (!conflictAnnotation.RenameDeclarationLocationReferences.Any())
{
hasConflict = false;
}
else
{
// Ensure newReferencedSymbols contains at least one of the original referenced
// symbols, and allow any new symbols to be added to the set of references.
hasConflict = true;
var newLocationTasks = newReferencedSymbols.Select(async symbol => await GetSymbolLocationAsync(solution, symbol, _cancellationToken).ConfigureAwait(false));
var newLocations = (await Task.WhenAll(newLocationTasks).ConfigureAwait(false)).Where(loc => loc != null && loc.IsInSource);
foreach (var originalReference in conflictAnnotation.RenameDeclarationLocationReferences.Where(loc => loc.IsSourceLocation))
{
var adjustedStartPosition = conflictResolution.GetAdjustedTokenStartingPosition(originalReference.TextSpan.Start, originalReference.DocumentId);
if (newLocations.Any(loc => loc.SourceSpan.Start == adjustedStartPosition))
{
hasConflict = false;
break;
}
}
}
}
else if (!conflictAnnotation.IsRenameLocation && conflictAnnotation.IsOriginalTextLocation && conflictAnnotation.RenameDeclarationLocationReferences.Length > 1 && newReferencedSymbols.Count() == 1)
{
// an ambiguous situation was resolved through rename in non reference locations
hasConflict = false;
}
else if (newReferencedSymbols.Count() != conflictAnnotation.RenameDeclarationLocationReferences.Length)
{
// Don't show conflicts for errors in the old solution that now bind in the new solution.
if (newReferencedSymbols.Count() != 0 && conflictAnnotation.RenameDeclarationLocationReferences.Length == 0)
{
hasConflict = false;
}
else
{
hasConflict = true;
}
}
else
{
hasConflict = false;
var symbolIndex = 0;
foreach (var symbol in newReferencedSymbols)
{
if (conflictAnnotation.RenameDeclarationLocationReferences[symbolIndex].SymbolLocationsCount != symbol.Locations.Length)
{
hasConflict = true;
break;
}
var newLocation = await GetSymbolLocationAsync(solution, symbol, _cancellationToken).ConfigureAwait(false);
if (newLocation != null && conflictAnnotation.RenameDeclarationLocationReferences[symbolIndex].IsSourceLocation)
{
// location was in source before, but not after rename
if (!newLocation.IsInSource)
{
hasConflict = true;
break;
}
var renameDeclarationLocationReference = conflictAnnotation.RenameDeclarationLocationReferences[symbolIndex];
var newAdjustedStartPosition = conflictResolution.GetAdjustedTokenStartingPosition(renameDeclarationLocationReference.TextSpan.Start, renameDeclarationLocationReference.DocumentId);
if (newAdjustedStartPosition != newLocation.SourceSpan.Start)
{
hasConflict = true;
break;
}
if (conflictAnnotation.RenameDeclarationLocationReferences[symbolIndex].IsOverriddenFromMetadata)
{
var overridingSymbol = await SymbolFinder.FindSymbolAtPositionAsync(solution.GetDocument(newLocation.SourceTree), newLocation.SourceSpan.Start, cancellationToken : _cancellationToken).ConfigureAwait(false);
if (overridingSymbol != null && !Equals(renamedSymbolInNewSolution, overridingSymbol))
{
if (!overridingSymbol.IsOverride)
{
hasConflict = true;
break;
}
else
{
var overriddenSymbol = overridingSymbol.OverriddenMember();
if (overriddenSymbol == null || !overriddenSymbol.Locations.All(loc => loc.IsInMetadata))
{
hasConflict = true;
break;
}
}
}
}
}
else
{
var newMetadataName = symbol.ToDisplayString(s_metadataSymbolDisplayFormat);
var oldMetadataName = conflictAnnotation.RenameDeclarationLocationReferences[symbolIndex].Name;
if (newLocation == null ||
newLocation.IsInSource ||
!HeuristicMetadataNameEquivalenceCheck(
oldMetadataName,
newMetadataName,
_originalText,
_replacementText))
{
hasConflict = true;
break;
}
}
symbolIndex++;
}
}
return(hasConflict);
}
catch (Exception e) when(FatalError.ReportUnlessCanceled(e))
{
throw ExceptionUtilities.Unreachable;
}
}
private IEnumerable <ISymbol> GetSymbolsInNewSolution(Document newDocument, SemanticModel newDocumentSemanticModel, RenameActionAnnotation conflictAnnotation, SyntaxNodeOrToken tokenOrNode)
{
IEnumerable <ISymbol> newReferencedSymbols = RenameUtilities.GetSymbolsTouchingPosition(tokenOrNode.Span.Start, newDocumentSemanticModel, newDocument.Project.Solution.Workspace, _cancellationToken);
if (conflictAnnotation.IsInvocationExpression)
{
IEnumerable <ISymbol> invocationReferencedSymbols = null;
if (tokenOrNode.IsNode)
{
invocationReferencedSymbols = SymbolsForEnclosingInvocationExpressionWorker((SyntaxNode)tokenOrNode, newDocumentSemanticModel, _cancellationToken);
}
if (invocationReferencedSymbols != null)
{
newReferencedSymbols = invocationReferencedSymbols;
}
}
// if there are more than one symbol, then remove the alias symbols.
// When using (not declaring) an alias, the alias symbol and the target symbol are returned
// by GetSymbolsTouchingPosition
if (newReferencedSymbols.Skip(1).Any())
{
newReferencedSymbols = newReferencedSymbols.Where(a => a.Kind != SymbolKind.Alias);
}
return(newReferencedSymbols);
}
private async Task<bool> CheckForConflictAsync(
ConflictResolution conflictResolution,
ISymbol renamedSymbolInNewSolution,
Document newDocument,
RenameActionAnnotation conflictAnnotation,
IEnumerable<ISymbol> newReferencedSymbols)
{
try
{
bool hasConflict;
var solution = conflictResolution.NewSolution;
if (conflictAnnotation.IsNamespaceDeclarationReference)
{
hasConflict = false;
}
else if (conflictAnnotation.IsMemberGroupReference)
{
if (!conflictAnnotation.RenameDeclarationLocationReferences.Any())
{
hasConflict = false;
}
else
{
// Ensure newReferencedSymbols contains at least one of the original referenced
// symbols, and allow any new symbols to be added to the set of references.
hasConflict = true;
var newLocationTasks = newReferencedSymbols.Select(async symbol => await GetSymbolLocationAsync(solution, symbol, _cancellationToken).ConfigureAwait(false));
var newLocations = (await Task.WhenAll(newLocationTasks).ConfigureAwait(false)).Where(loc => loc != null && loc.IsInSource);
foreach (var originalReference in conflictAnnotation.RenameDeclarationLocationReferences.Where(loc => loc.IsSourceLocation))
{
var adjustedStartPosition = conflictResolution.GetAdjustedTokenStartingPosition(originalReference.TextSpan.Start, originalReference.DocumentId);
if (newLocations.Any(loc => loc.SourceSpan.Start == adjustedStartPosition))
{
hasConflict = false;
break;
}
}
}
}
else if (!conflictAnnotation.IsRenameLocation && conflictAnnotation.IsOriginalTextLocation && conflictAnnotation.RenameDeclarationLocationReferences.Length > 1 && newReferencedSymbols.Count() == 1)
{
// an ambiguous situation was resolved through rename in non reference locations
hasConflict = false;
}
else if (newReferencedSymbols.Count() != conflictAnnotation.RenameDeclarationLocationReferences.Length)
{
// Don't show conflicts for errors in the old solution that now bind in the new solution.
if (newReferencedSymbols.Count() != 0 && conflictAnnotation.RenameDeclarationLocationReferences.Length == 0)
{
hasConflict = false;
}
else
{
hasConflict = true;
}
}
else
{
hasConflict = false;
int symbolIndex = 0;
foreach (var symbol in newReferencedSymbols)
{
if (conflictAnnotation.RenameDeclarationLocationReferences[symbolIndex].SymbolLocationsCount != symbol.Locations.Count())
{
hasConflict = true;
break;
}
var newLocation = await GetSymbolLocationAsync(solution, symbol, _cancellationToken).ConfigureAwait(false);
if (newLocation != null && conflictAnnotation.RenameDeclarationLocationReferences[symbolIndex].IsSourceLocation)
{
// location was in source before, but not after rename
if (!newLocation.IsInSource)
{
hasConflict = true;
break;
}
var renameDeclarationLocationReference = conflictAnnotation.RenameDeclarationLocationReferences[symbolIndex];
var newAdjustedStartPosition = conflictResolution.GetAdjustedTokenStartingPosition(renameDeclarationLocationReference.TextSpan.Start, renameDeclarationLocationReference.DocumentId);
if (newAdjustedStartPosition != newLocation.SourceSpan.Start)
{
hasConflict = true;
break;
}
if (conflictAnnotation.RenameDeclarationLocationReferences[symbolIndex].IsOverriddenFromMetadata)
{
var overridingSymbol = await SymbolFinder.FindSymbolAtPositionAsync(solution.GetDocument(newLocation.SourceTree), newLocation.SourceSpan.Start, cancellationToken: _cancellationToken).ConfigureAwait(false);
if (overridingSymbol != null && renamedSymbolInNewSolution != overridingSymbol)
{
if (!overridingSymbol.IsOverride)
{
hasConflict = true;
break;
}
else
{
var overriddenSymbol = overridingSymbol.OverriddenMember();
if (overriddenSymbol == null || !overriddenSymbol.Locations.All(loc => loc.IsInMetadata))
{
hasConflict = true;
break;
}
}
}
}
}
else
{
var newMetadataName = symbol.ToDisplayString(s_metadataSymbolDisplayFormat);
var oldMetadataName = conflictAnnotation.RenameDeclarationLocationReferences[symbolIndex].Name;
if (newLocation == null ||
newLocation.IsInSource ||
!HeuristicMetadataNameEquivalenceCheck(
oldMetadataName,
newMetadataName,
_originalText,
_replacementText))
{
hasConflict = true;
break;
}
}
symbolIndex++;
}
}
return hasConflict;
}
catch (Exception e) when (FatalError.ReportUnlessCanceled(e))
{
throw ExceptionUtilities.Unreachable;
}
}
private IEnumerable<ISymbol> GetSymbolsInNewSolution(Document newDocument, SemanticModel newDocumentSemanticModel, RenameActionAnnotation conflictAnnotation, SyntaxNodeOrToken tokenOrNode)
{
var newReferencedSymbols = RenameUtilities.GetSymbolsTouchingPosition(tokenOrNode.Span.Start, newDocumentSemanticModel, newDocument.Project.Solution.Workspace, _cancellationToken);
if (conflictAnnotation.IsInvocationExpression)
{
IEnumerable<ISymbol> invocationReferencedSymbols = null;
if (tokenOrNode.IsNode)
{
invocationReferencedSymbols = SymbolsForEnclosingInvocationExpressionWorker((SyntaxNode)tokenOrNode, newDocumentSemanticModel, _cancellationToken);
}
if (invocationReferencedSymbols != null)
{
newReferencedSymbols = invocationReferencedSymbols;
}
}
// if there are more than one symbol, then remove the alias symbols.
// When using (not declaring) an alias, the alias symbol and the target symbol are returned
// by GetSymbolsTouchingPosition
if (newReferencedSymbols.Skip(1).Any())
{
newReferencedSymbols = newReferencedSymbols.Where(a => a.Kind != SymbolKind.Alias);
}
return newReferencedSymbols;
}
private RenameActionAnnotation GetAnnotationForInvocationExpression(InvocationExpressionSyntax invocationExpression)
{
var identifierToken = default(SyntaxToken);
var expressionOfInvocation = invocationExpression.Expression;
while (expressionOfInvocation != null)
{
switch (expressionOfInvocation.Kind())
{
case SyntaxKind.IdentifierName:
case SyntaxKind.GenericName:
identifierToken = ((SimpleNameSyntax)expressionOfInvocation).Identifier;
break;
case SyntaxKind.SimpleMemberAccessExpression:
identifierToken = ((MemberAccessExpressionSyntax)expressionOfInvocation).Name.Identifier;
break;
case SyntaxKind.QualifiedName:
identifierToken = ((QualifiedNameSyntax)expressionOfInvocation).Right.Identifier;
break;
case SyntaxKind.AliasQualifiedName:
identifierToken = ((AliasQualifiedNameSyntax)expressionOfInvocation).Name.Identifier;
break;
case SyntaxKind.ParenthesizedExpression:
expressionOfInvocation = ((ParenthesizedExpressionSyntax)expressionOfInvocation).Expression;
continue;
}
break;
}
if (identifierToken != default(SyntaxToken) && !_annotatedIdentifierTokens.Contains(identifierToken))
{
var symbolInfo = _semanticModel.GetSymbolInfo(invocationExpression, _cancellationToken);
IEnumerable<ISymbol> symbols = null;
if (symbolInfo.Symbol == null)
{
return null;
}
else
{
symbols = SpecializedCollections.SingletonEnumerable(symbolInfo.Symbol);
}
RenameDeclarationLocationReference[] renameDeclarationLocations =
ConflictResolver.CreateDeclarationLocationAnnotationsAsync(
_solution,
symbols,
_cancellationToken)
.WaitAndGetResult(_cancellationToken);
var renameAnnotation = new RenameActionAnnotation(
identifierToken.Span,
isRenameLocation: false,
prefix: null,
suffix: null,
renameDeclarationLocations: renameDeclarationLocations,
isOriginalTextLocation: false,
isNamespaceDeclarationReference: false,
isInvocationExpression: true,
isMemberGroupReference: false);
return renameAnnotation;
}
return null;
}
private async Task<SyntaxToken> RenameAndAnnotateAsync(SyntaxToken token, SyntaxToken newToken, bool isRenameLocation, bool isOldText)
{
try
{
if (_isProcessingComplexifiedSpans)
{
// Rename Token
if (isRenameLocation)
{
var annotation = _renameAnnotations.GetAnnotations(token).OfType<RenameActionAnnotation>().FirstOrDefault();
if (annotation != null)
{
newToken = RenameToken(token, newToken, annotation.Prefix, annotation.Suffix);
AddModifiedSpan(annotation.OriginalSpan, newToken.Span);
}
else
{
newToken = RenameToken(token, newToken, prefix: null, suffix: null);
}
}
return newToken;
}
var symbols = RenameUtilities.GetSymbolsTouchingPosition(token.Span.Start, _semanticModel, _solution.Workspace, _cancellationToken);
string suffix = null;
string prefix = isRenameLocation && _renameLocations[token.Span].IsRenamableAccessor
? newToken.ValueText.Substring(0, newToken.ValueText.IndexOf('_') + 1)
: null;
if (symbols.Count() == 1)
{
var symbol = symbols.Single();
if (symbol.IsConstructor())
{
symbol = symbol.ContainingSymbol;
}
var sourceDefinition = await SymbolFinder.FindSourceDefinitionAsync(symbol, _solution, _cancellationToken).ConfigureAwait(false);
symbol = sourceDefinition ?? symbol;
if (symbol is INamedTypeSymbol)
{
var namedTypeSymbol = (INamedTypeSymbol)symbol;
if (namedTypeSymbol.IsImplicitlyDeclared &&
namedTypeSymbol.IsDelegateType() &&
namedTypeSymbol.AssociatedSymbol != null)
{
suffix = "EventHandler";
}
}
// This is a conflicting namespace declaration token. Even if the rename results in conflict with this namespace
// conflict is not shown for the namespace so we are tracking this token
if (!isRenameLocation && symbol is INamespaceSymbol && token.GetPreviousToken().IsKind(SyntaxKind.NamespaceKeyword))
{
return newToken;
}
}
// Rename Token
if (isRenameLocation && !this.AnnotateForComplexification)
{
var oldSpan = token.Span;
newToken = RenameToken(token, newToken, prefix, suffix);
AddModifiedSpan(oldSpan, newToken.Span);
}
RenameDeclarationLocationReference[] renameDeclarationLocations =
ConflictResolver.CreateDeclarationLocationAnnotationsAsync(_solution, symbols, _cancellationToken)
.WaitAndGetResult(_cancellationToken);
var isNamespaceDeclarationReference = false;
if (isRenameLocation && token.GetPreviousToken().IsKind(SyntaxKind.NamespaceKeyword))
{
isNamespaceDeclarationReference = true;
}
var isMemberGroupReference = _semanticFactsService.IsNameOfContext(_semanticModel, token.Span.Start, _cancellationToken);
var renameAnnotation =
new RenameActionAnnotation(
token.Span,
isRenameLocation,
prefix,
suffix,
renameDeclarationLocations: renameDeclarationLocations,
isOriginalTextLocation: isOldText,
isNamespaceDeclarationReference: isNamespaceDeclarationReference,
isInvocationExpression: false,
isMemberGroupReference: isMemberGroupReference);
newToken = _renameAnnotations.WithAdditionalAnnotations(newToken, renameAnnotation, new RenameTokenSimplificationAnnotation() { OriginalTextSpan = token.Span });
_annotatedIdentifierTokens.Add(token);
if (_renameRenamableSymbolDeclaration != null && _renamableDeclarationLocation == token.GetLocation())
{
newToken = _renameAnnotations.WithAdditionalAnnotations(newToken, _renameRenamableSymbolDeclaration);
}
return newToken;
}
catch (Exception e) when (FatalError.ReportUnlessCanceled(e))
{
throw ExceptionUtilities.Unreachable;
}
}
private async Task <bool> CheckForConflictAsync(
ConflictResolution conflictResolution,
ISymbol renamedSymbolInNewSolution,
Document newDocument,
RenameActionAnnotation conflictAnnotation,
IEnumerable <ISymbol> newReferencedSymbols)
{
bool hasConflict;
var solution = conflictResolution.NewSolution;
if (conflictAnnotation.IsNamespaceDeclarationReference)
{
hasConflict = false;
}
else if (!conflictAnnotation.IsRenameLocation && conflictAnnotation.IsOriginalTextLocation && conflictAnnotation.RenameDeclarationLocationReferences.Length > 1 && newReferencedSymbols.Count() == 1)
{
// an ambiguous situation was resolved through rename in non reference locations
hasConflict = false;
}
else if (newReferencedSymbols.Count() != conflictAnnotation.RenameDeclarationLocationReferences.Length)
{
// Don't show conflicts for errors in the old solution that now bind in the new solution.
if (newReferencedSymbols.Count() != 0 && conflictAnnotation.RenameDeclarationLocationReferences.Length == 0)
{
hasConflict = false;
}
else
{
hasConflict = true;
}
}
else
{
hasConflict = false;
int symbolIndex = 0;
foreach (var symbol in newReferencedSymbols)
{
if (conflictAnnotation.RenameDeclarationLocationReferences[symbolIndex].SymbolLocationsCount != symbol.Locations.Count())
{
hasConflict = true;
break;
}
var newLocation = await GetSymbolLocationAsync(solution, symbol, _cancellationToken).ConfigureAwait(false);
if (newLocation != null && conflictAnnotation.RenameDeclarationLocationReferences[symbolIndex].IsSourceLocation)
{
// location was in source before, but not after rename
if (!newLocation.IsInSource)
{
hasConflict = true;
break;
}
var renameDeclarationLocationReference = conflictAnnotation.RenameDeclarationLocationReferences[symbolIndex];
var newAdjustedStartPosition = conflictResolution.GetAdjustedTokenStartingPosition(renameDeclarationLocationReference.TextSpan.Start, renameDeclarationLocationReference.DocumentId);
if (newAdjustedStartPosition != newLocation.SourceSpan.Start)
{
hasConflict = true;
break;
}
if (conflictAnnotation.RenameDeclarationLocationReferences[symbolIndex].IsOverriddenFromMetadata)
{
var overridingSymbol = await SymbolFinder.FindSymbolAtPositionAsync(solution.GetDocument(newLocation.SourceTree), newLocation.SourceSpan.Start, cancellationToken : _cancellationToken).ConfigureAwait(false);
if (overridingSymbol != null && renamedSymbolInNewSolution != overridingSymbol)
{
if (!overridingSymbol.IsOverride)
{
hasConflict = true;
break;
}
else
{
var overriddenSymbol = overridingSymbol.OverriddenMember();
if (overriddenSymbol == null || !overriddenSymbol.Locations.All(loc => loc.IsInMetadata))
{
hasConflict = true;
break;
}
}
}
}
}
else
{
var newMetadataName = symbol.ToDisplayString(s_metadataSymbolDisplayFormat);
var oldMetadataName = conflictAnnotation.RenameDeclarationLocationReferences[symbolIndex].Name;
if (newLocation == null ||
newLocation.IsInSource ||
!HeuristicMetadataNameEquivalenceCheck(
oldMetadataName,
newMetadataName,
_originalText,
_replacementText))
{
hasConflict = true;
break;
}
}
symbolIndex++;
}
}
return(hasConflict);
}
private async Task<SyntaxToken> RenameAndAnnotateAsync(SyntaxToken token, SyntaxToken newToken, bool isRenameLocation, bool isOldText)
{
if (this.isProcessingComplexifiedSpans)
{
// Rename Token
if (isRenameLocation)
{
var annotation = this.renameAnnotations.GetAnnotations(token).OfType<RenameActionAnnotation>().FirstOrDefault();
if (annotation != null)
{
newToken = RenameToken(token, newToken, annotation.Suffix, annotation.IsAccessorLocation);
AddModifiedSpan(annotation.OriginalSpan, newToken.Span);
}
else
{
newToken = RenameToken(token, newToken, suffix: null, isAccessorLocation: false);
}
}
return newToken;
}
var symbols = RenameUtilities.GetSymbolsTouchingPosition(token.Span.Start, this.semanticModel, this.solution.Workspace, this.cancellationToken);
string suffix = null;
if (symbols.Count() == 1)
{
var symbol = symbols.Single();
if (symbol.IsConstructor())
{
symbol = symbol.ContainingSymbol;
}
var sourceDefinition = await SymbolFinder.FindSourceDefinitionAsync(symbol, solution, cancellationToken).ConfigureAwait(false);
symbol = sourceDefinition ?? symbol;
if (symbol is INamedTypeSymbol)
{
var namedTypeSymbol = (INamedTypeSymbol)symbol;
if (namedTypeSymbol.IsImplicitlyDeclared &&
namedTypeSymbol.IsDelegateType() &&
namedTypeSymbol.AssociatedSymbol != null)
{
suffix = "EventHandler";
}
}
// This is a conflicting namespace declaration token. Even if the rename results in conflict with this namespace
// conflict is not shown for the namespace so we are tracking this token
if (!isRenameLocation && symbol is INamespaceSymbol && token.GetPreviousToken().IsKind(SyntaxKind.NamespaceKeyword))
{
return newToken;
}
}
// Rename Token
if (isRenameLocation && !this.AnnotateForComplexification)
{
var oldSpan = token.Span;
newToken = RenameToken(
token,
newToken,
suffix: suffix,
isAccessorLocation: isRenameLocation && this.renameLocations[token.Span].IsRenamableAccessor);
AddModifiedSpan(oldSpan, newToken.Span);
}
RenameDeclarationLocationReference[] renameDeclarationLocations =
ConflictResolver.CreateDeclarationLocationAnnotationsAsync(solution, symbols, cancellationToken)
.WaitAndGetResult_Hack(cancellationToken);
var isNamespaceDeclarationReference = false;
if (isRenameLocation && token.GetPreviousToken().IsKind(SyntaxKind.NamespaceKeyword))
{
isNamespaceDeclarationReference = true;
}
var renameAnnotation =
new RenameActionAnnotation(
token.Span,
isRenameLocation,
isRenameLocation ? this.renameLocations[token.Span].IsRenamableAccessor : false,
suffix,
renameDeclarationLocations: renameDeclarationLocations,
isOriginalTextLocation: isOldText,
isNamespaceDeclarationReference: isNamespaceDeclarationReference,
isInvocationExpression: false);
newToken = this.renameAnnotations.WithAdditionalAnnotations(newToken, renameAnnotation, new RenameTokenSimplificationAnnotation() { OriginalTextSpan = token.Span });
annotatedIdentifierTokens.Add(token);
if (this.renameRenamableSymbolDeclaration != null && renamableDeclarationLocation == token.GetLocation())
{
newToken = this.renameAnnotations.WithAdditionalAnnotations(newToken, this.renameRenamableSymbolDeclaration);
}
return newToken;
}
private async Task<bool> CheckForConflictAsync(
ConflictResolution conflictResolution,
ISymbol renamedSymbolInNewSolution,
Document newDocument,
RenameActionAnnotation conflictAnnotation,
IEnumerable<ISymbol> newReferencedSymbols)
{
bool hasConflict;
var solution = conflictResolution.NewSolution;
if (conflictAnnotation.IsNamespaceDeclarationReference)
{
hasConflict = false;
}
else if (!conflictAnnotation.IsRenameLocation && conflictAnnotation.IsOriginalTextLocation && conflictAnnotation.RenameDeclarationLocationReferences.Length > 1 && newReferencedSymbols.Count() == 1)
{
// an ambiguous situation was resolved through rename in non reference locations
hasConflict = false;
}
else if (newReferencedSymbols.Count() != conflictAnnotation.RenameDeclarationLocationReferences.Length)
{
// Don't show conflicts for errors in the old solution that now bind in the new solution.
if (newReferencedSymbols.Count() != 0 && conflictAnnotation.RenameDeclarationLocationReferences.Length == 0)
{
hasConflict = false;
}
else
{
hasConflict = true;
}
}
else
{
hasConflict = false;
int symbolIndex = 0;
foreach (var symbol in newReferencedSymbols)
{
if (conflictAnnotation.RenameDeclarationLocationReferences[symbolIndex].SymbolLocationsCount != symbol.Locations.Count())
{
hasConflict = true;
break;
}
var newLocation = await GetSymbolLocationAsync(solution, symbol, cancellationToken).ConfigureAwait(false);
if (newLocation != null && conflictAnnotation.RenameDeclarationLocationReferences[symbolIndex].IsSourceLocation)
{
// location was in source before, but not after rename
if (!newLocation.IsInSource)
{
hasConflict = true;
break;
}
var renameDeclarationLocationReference = conflictAnnotation.RenameDeclarationLocationReferences[symbolIndex];
var newAdjustedStartPosition = conflictResolution.GetAdjustedTokenStartingPosition(renameDeclarationLocationReference.TextSpan.Start, renameDeclarationLocationReference.DocumentId);
if (newAdjustedStartPosition != newLocation.SourceSpan.Start)
{
hasConflict = true;
break;
}
if (conflictAnnotation.RenameDeclarationLocationReferences[symbolIndex].IsOverriddenFromMetadata)
{
var overridingSymbol = await SymbolFinder.FindSymbolAtPositionAsync(solution.GetDocument(newLocation.SourceTree), newLocation.SourceSpan.Start, cancellationToken: cancellationToken).ConfigureAwait(false);
if (overridingSymbol != null && renamedSymbolInNewSolution != overridingSymbol)
{
if (!overridingSymbol.IsOverride)
{
hasConflict = true;
break;
}
else
{
var overriddenSymbol = overridingSymbol.OverriddenMember();
if (overriddenSymbol == null || !overriddenSymbol.Locations.All(loc => loc.IsInMetadata))
{
hasConflict = true;
break;
}
}
}
}
}
else
{
var newMetadataName = symbol.ToDisplayString(metadataSymbolDisplayFormat);
var oldMetadataName = conflictAnnotation.RenameDeclarationLocationReferences[symbolIndex].Name;
if (newLocation.IsInSource ||
!HeuristicMetadataNameEquivalenceCheck(
oldMetadataName,
newMetadataName,
originalText,
replacementText))
{
hasConflict = true;
break;
}
}
symbolIndex++;
}
}
return hasConflict;
}