internal ReferenceLocation(Document document, IAliasSymbol alias, Location location, bool isImplicit, ValueUsageInfo valueUsageInfo, CandidateReason candidateReason)
: this()
{
this.Document = document;
this.Alias = alias;
this.Location = location;
this.IsImplicit = isImplicit;
this.ValueUsageInfo = valueUsageInfo;
this.CandidateReason = candidateReason;
}
internal ReferenceLocation(Document document, IAliasSymbol alias, Location location, bool isImplicit, bool isWrittenTo, CandidateReason candidateReason)
: this()
{
this.Document = document;
this.Alias = alias;
this.Location = location;
this.IsImplicit = isImplicit;
this.IsWrittenTo = isWrittenTo;
this.CandidateReason = candidateReason;
}
public TokenSemanticInfo(
ISymbol declaredSymbol,
IAliasSymbol aliasSymbol,
ImmutableArray <ISymbol> referencedSymbols,
ITypeSymbol type)
{
DeclaredSymbol = declaredSymbol;
AliasSymbol = aliasSymbol;
ReferencedSymbols = referencedSymbols;
Type = type;
}
public override void VisitAlias(IAliasSymbol symbol)
{
builder.Add(CreatePart(SymbolDisplayPartKind.AliasName, symbol, symbol.Name));
if (format.LocalOptions.IncludesOption(SymbolDisplayLocalOptions.IncludeType))
{
// ???
AddPunctuation(SyntaxKind.EqualsToken);
symbol.Target.Accept(this);
}
}
internal ReferenceLocation(Document document, IAliasSymbol alias, Location location, bool isImplicit, SymbolUsageInfo symbolUsageInfo, ImmutableArray <FindUsageProperty> additionalProperties, CandidateReason candidateReason)
: this()
{
this.Document = document;
this.Alias = alias;
this.Location = location;
this.IsImplicit = isImplicit;
this.SymbolUsageInfo = symbolUsageInfo;
this.FindUsagesProperties = additionalProperties.NullToEmpty();
this.CandidateReason = candidateReason;
}
internal ReferenceLocation(Document document, IAliasSymbol alias, Location location, bool isImplicit, SymbolUsageInfo symbolUsageInfo, ImmutableDictionary <string, string> additionalProperties, CandidateReason candidateReason)
: this()
{
this.Document = document;
this.Alias = alias;
this.Location = location;
this.IsImplicit = isImplicit;
this.SymbolUsageInfo = symbolUsageInfo;
this.AdditionalProperties = additionalProperties ?? ImmutableDictionary <string, string> .Empty;
this.CandidateReason = candidateReason;
}
public override SyntaxNode VisitIdentifierName(IdentifierNameSyntax node)
{
IAliasSymbol aliasSymbol = SemanticModel.GetAliasInfo(node, CancellationToken);
if (SymbolEqualityComparer.Default.Equals(aliasSymbol, AliasSymbol))
{
return(Replacement
.WithTriviaFrom(node)
.WithSimplifierAnnotation());
}
return(base.VisitIdentifierName(node));
}
private static bool IsFixable(SyntaxNodeAnalysisContext context, TypeSyntax name)
{
var typeSymbol = context.SemanticModel.GetSymbol(name, context.CancellationToken) as ITypeSymbol;
if (typeSymbol?.SupportsPredefinedType() == true)
{
IAliasSymbol aliasSymbol = context.SemanticModel.GetAliasInfo(name, context.CancellationToken);
return(aliasSymbol == null);
}
return(false);
}
public NameDeclarationInfo(
ImmutableArray <SymbolKind> possibleSymbolKinds,
Accessibility accessibility,
DeclarationModifiers declarationModifiers,
ITypeSymbol type,
IAliasSymbol alias)
{
PossibleSymbolKinds = possibleSymbolKinds;
DeclaredAccessibility = accessibility;
Modifiers = declarationModifiers;
Type = type;
Alias = alias;
}
private static void AnalyzeIdentifierName(SyntaxNodeAnalysisContext context)
{
var identifierName = (IdentifierNameSyntax)context.Node;
if (identifierName.IsVar)
{
return;
}
if (identifierName.IsParentKind(
SyntaxKind.SimpleMemberAccessExpression,
SyntaxKind.QualifiedName,
SyntaxKind.UsingDirective))
{
return;
}
if (!SupportsPredefinedType(identifierName))
{
return;
}
if (identifierName.IsPartOfDocumentationComment())
{
return;
}
if (IsArgumentExpressionOfNameOfExpression(context, identifierName))
{
return;
}
if (!(context.SemanticModel.GetSymbol(identifierName, context.CancellationToken) is ITypeSymbol typeSymbol))
{
return;
}
if (!CSharpFacts.IsPredefinedType(typeSymbol.SpecialType))
{
return;
}
IAliasSymbol aliasSymbol = context.SemanticModel.GetAliasInfo(identifierName, context.CancellationToken);
if (aliasSymbol != null)
{
return;
}
ReportDiagnostic(context, identifierName);
}
public static IEnumerable <ReferencedSymbol> FilterToAliasMatches(
this IEnumerable <ReferencedSymbol> result,
IAliasSymbol aliasSymbolOpt)
{
if (aliasSymbolOpt == null)
{
return(result);
}
return(from r in result
let aliasLocations = r.Locations.Where(loc => SymbolEquivalenceComparer.Instance.Equals(loc.Alias, aliasSymbolOpt))
where aliasLocations.Any()
select new ReferencedSymbol(r.DefinitionAndProjectId, aliasLocations));
}
public static IEnumerable<ReferencedSymbol> FilterToAliasMatches(
this IEnumerable<ReferencedSymbol> result,
IAliasSymbol aliasSymbolOpt)
{
if (aliasSymbolOpt == null)
{
return result;
}
return from r in result
let aliasLocations = r.Locations.Where(loc => SymbolEquivalenceComparer.Instance.Equals(loc.Alias, aliasSymbolOpt))
where aliasLocations.Any()
select new ReferencedSymbol(r.Definition, aliasLocations);
}
public TokenSemanticInfo(
ISymbol declaredSymbol,
IAliasSymbol aliasSymbol,
ImmutableArray <ISymbol> referencedSymbols,
ITypeSymbol type,
ITypeSymbol convertedType,
TextSpan span)
{
DeclaredSymbol = declaredSymbol;
AliasSymbol = aliasSymbol;
ReferencedSymbols = referencedSymbols;
Type = type;
ConvertedType = convertedType;
Span = span;
}
public static bool TryGetAliasSymbol(SemanticModel semanticModel, int namespaceId, INamespaceOrTypeSymbol targetSymbol, out IAliasSymbol aliasSymbol)
{
// TODO: given semantic model must be not speculative semantic model for now.
// currently it can't be checked since it is not exposed to common layer yet.
// once exposed, this method itself will make sure it use original semantic model
aliasSymbol = null;
if (!s_treeAliasMap.TryGetValue(semanticModel.Compilation, out var treeMap) ||
!treeMap.TryGetValue((semanticModel.SyntaxTree, namespaceId), out var symbolMap))
{
return false;
}
symbolMap.TryGetValue(targetSymbol, out aliasSymbol);
return true;
}
internal static ImmutableArray <Words> GetBaseNames(IAliasSymbol alias)
{
var name = alias.Name;
if (alias.Target.IsType && (((INamedTypeSymbol)alias.Target).IsInterfaceType() &&
CanRemoveInterfacePrefix(name)))
{
name = name.Substring(1);
}
var breaks = StringBreaker.GetWordParts(name);
var result = GetInterleavedPatterns(breaks, name, pluralize: false);
breaks.Free();
return(result);
}
internal static ImmutableArray <Words> GetBaseNames(IAliasSymbol alias)
{
var name = alias.Name;
if (alias.Target.IsType &&
((INamedTypeSymbol)alias.Target).IsInterfaceType() &&
CanRemoveInterfacePrefix(name))
{
name = name.Substring(1);
}
using var breaks = TemporaryArray <TextSpan> .Empty;
StringBreaker.AddWordParts(name, ref breaks.AsRef());
var result = GetInterleavedPatterns(breaks, name, pluralize: false);
return(result);
}
public static async Task <Document> RefactorAsync(
Document document,
UsingDirectiveSyntax usingDirective,
CancellationToken cancellationToken)
{
SemanticModel semanticModel = await document.GetSemanticModelAsync(cancellationToken).ConfigureAwait(false);
IAliasSymbol aliasSymbol = semanticModel.GetDeclaredSymbol(usingDirective, cancellationToken);
SyntaxNode parent = usingDirective.Parent;
Debug.Assert(parent.IsKind(SyntaxKind.CompilationUnit, SyntaxKind.NamespaceDeclaration), "");
SyntaxList <UsingDirectiveSyntax> usings = GetUsings(parent);
int index = usings.IndexOf(usingDirective);
List <IdentifierNameSyntax> names = CollectNames(parent, aliasSymbol, semanticModel, cancellationToken);
NameSyntax name = usingDirective.Name;
ISymbol symbol = semanticModel.GetSymbol(name, cancellationToken);
SyntaxNode newNode = parent.ReplaceNodes(names, (f, _) =>
{
if (symbol != null &&
semanticModel
.GetSpeculativeSymbolInfo(f.SpanStart, name, SpeculativeBindingOption.BindAsTypeOrNamespace)
.Symbol?
.Equals(symbol) == true)
{
return(name.WithTriviaFrom(f));
}
else
{
return(aliasSymbol.Target.ToMinimalTypeSyntax(semanticModel, f.SpanStart).WithTriviaFrom(f));
}
});
newNode = RemoveUsingDirective(newNode, index);
return(await document.ReplaceNodeAsync(parent, newNode, cancellationToken).ConfigureAwait(false));
}
private static TokenSemanticInfo GetSemanticInfo(
SemanticModelBase semanticModel,
ISemanticFactsService semanticFacts,
ISyntaxFactsService syntaxFacts,
ISyntaxToken token,
CancellationToken cancellationToken)
{
//var aliasSymbol = semanticModel.GetAliasInfo(token.Parent, cancellationToken);
IAliasSymbol aliasSymbol = null;
var bindableParent = syntaxFacts.GetBindableParent(token);
var type = semanticModel.GetTypeInfo(bindableParent).Type;
var declaredSymbol = semanticFacts.GetDeclaredSymbol(semanticModel, token, cancellationToken);
var allSymbols = semanticModel.GetSymbolInfo(bindableParent)
.GetBestOrAllSymbols()
.WhereAsArray(s => !s.Equals(declaredSymbol))
.SelectAsArray(s => s);
return(new TokenSemanticInfo(declaredSymbol, aliasSymbol, allSymbols, type));
}
public static void Analyze(SyntaxNodeAnalysisContext context, IdentifierNameSyntax identifierName)
{
if (!identifierName.IsVar &&
!identifierName.IsParentKind(
SyntaxKind.SimpleMemberAccessExpression,
SyntaxKind.QualifiedName,
SyntaxKind.UsingDirective))
{
var typeSymbol = context.SemanticModel.GetSymbol(identifierName, context.CancellationToken) as ITypeSymbol;
if (typeSymbol?.SupportsPredefinedType() == true)
{
IAliasSymbol aliasSymbol = context.SemanticModel.GetAliasInfo(identifierName, context.CancellationToken);
if (aliasSymbol == null)
{
ReportDiagnostic(context, identifierName);
}
}
}
}
internal ReferenceLocation(
Document document,
IAliasSymbol alias,
Location location,
bool isImplicit,
SymbolUsageInfo symbolUsageInfo,
ImmutableDictionary <string, string> additionalProperties,
CandidateReason candidateReason
)
: this(
document,
alias,
location,
isImplicit,
symbolUsageInfo,
additionalProperties,
candidateReason,
containingStringLocation : Location.None
)
{
}
protected static ITypeSymbol GetSymbolType(ISymbol symbol)
{
ILocalSymbol localSymbol = symbol as ILocalSymbol;
if (localSymbol != null)
{
return(localSymbol.Type);
}
IFieldSymbol fieldSymbol = symbol as IFieldSymbol;
if (fieldSymbol != null)
{
return(fieldSymbol.Type);
}
IPropertySymbol propertySymbol = symbol as IPropertySymbol;
if (propertySymbol != null)
{
return(propertySymbol.Type);
}
IParameterSymbol parameterSymbol = symbol as IParameterSymbol;
if (parameterSymbol != null)
{
return(parameterSymbol.Type);
}
IAliasSymbol aliasSymbol = symbol as IAliasSymbol;
if (aliasSymbol != null)
{
return(aliasSymbol.Target as ITypeSymbol);
}
return(symbol as ITypeSymbol);
}
public static async Task <Document> RefactorAsync(
Document document,
UsingDirectiveSyntax usingDirective,
CancellationToken cancellationToken)
{
SemanticModel semanticModel = await document.GetSemanticModelAsync(cancellationToken).ConfigureAwait(false);
IAliasSymbol aliasSymbol = semanticModel.GetDeclaredSymbol(usingDirective, cancellationToken);
SyntaxNode parent = usingDirective.Parent;
Debug.Assert(parent.IsKind(SyntaxKind.CompilationUnit, SyntaxKind.NamespaceDeclaration), "");
int index = SyntaxInfo.UsingDirectiveListInfo(parent).IndexOf(usingDirective);
var rewriter = new Rewriter(aliasSymbol, aliasSymbol.Target.ToTypeSyntax(), semanticModel, cancellationToken);
SyntaxNode newNode = rewriter.Visit(parent);
newNode = RemoveUsingDirective(newNode, index);
return(await document.ReplaceNodeAsync(parent, newNode, cancellationToken).ConfigureAwait(false));
}
private static List <IdentifierNameSyntax> CollectNames(
SyntaxNode node,
IAliasSymbol aliasSymbol,
SemanticModel semanticModel,
CancellationToken cancellationToken)
{
var names = new List <IdentifierNameSyntax>();
foreach (SyntaxNode descendant in node.DescendantNodes())
{
if (descendant.Kind() == SyntaxKind.IdentifierName)
{
IAliasSymbol symbol = semanticModel.GetAliasInfo(descendant, cancellationToken);
if (symbol?.Equals(aliasSymbol) == true)
{
names.Add((IdentifierNameSyntax)descendant);
}
}
}
return(names);
}
public static void Analyze(SyntaxNodeAnalysisContext context, MemberAccessExpressionSyntax memberAccess)
{
if (!memberAccess.IsParentKind(SyntaxKind.SimpleMemberAccessExpression))
{
ExpressionSyntax expression = memberAccess.Expression;
if (expression?.IsKind(
SyntaxKind.SimpleMemberAccessExpression,
SyntaxKind.IdentifierName) == true)
{
var typeSymbol = context.SemanticModel.GetSymbol(expression, context.CancellationToken) as ITypeSymbol;
if (typeSymbol?.SupportsPredefinedType() == true)
{
IAliasSymbol aliasSymbol = context.SemanticModel.GetAliasInfo(expression, context.CancellationToken);
if (aliasSymbol == null)
{
ReportDiagnostic(context, expression);
}
}
}
}
}
public override void VisitAlias(IAliasSymbol symbol)
{
// TODO(cyrusn): I don't think we need to inspect the target of an alias.
}
public virtual TResult?VisitAlias(IAliasSymbol symbol)
{
return(DefaultVisit(symbol));
}
public RenameRewriter(RenameRewriterParameters parameters)
: base(visitIntoStructuredTrivia: true)
{
_documentId = parameters.Document.Id;
_renameRenamableSymbolDeclaration = parameters.RenamedSymbolDeclarationAnnotation;
_solution = parameters.OriginalSolution;
_replacementText = parameters.ReplacementText;
_originalText = parameters.OriginalText;
_possibleNameConflicts = parameters.PossibleNameConflicts;
_renameLocations = parameters.RenameLocations;
_conflictLocations = parameters.ConflictLocationSpans;
_cancellationToken = parameters.CancellationToken;
_semanticModel = parameters.SemanticModel;
_renamedSymbol = parameters.RenameSymbol;
_replacementTextValid = parameters.ReplacementTextValid;
_renameSpansTracker = parameters.RenameSpansTracker;
_isRenamingInStrings = parameters.OptionSet.GetOption(RenameOptions.RenameInStrings);
_isRenamingInComments = parameters.OptionSet.GetOption(RenameOptions.RenameInComments);
_stringAndCommentTextSpans = parameters.StringAndCommentTextSpans;
_renameAnnotations = parameters.RenameAnnotations;
_aliasSymbol = _renamedSymbol as IAliasSymbol;
_renamableDeclarationLocation = _renamedSymbol.Locations.FirstOrDefault(loc => loc.IsInSource && loc.SourceTree == _semanticModel.SyntaxTree);
_isVerbatim = _replacementText.StartsWith("@", StringComparison.Ordinal);
_simplificationService = parameters.Document.Project.LanguageServices.GetService<ISimplificationService>();
_semanticFactsService = parameters.Document.Project.LanguageServices.GetService<ISemanticFactsService>();
}
public static void Create(IAliasSymbol symbol, SymbolKeyWriter visitor)
{
visitor.WriteString(symbol.Name);
visitor.WriteSymbolKey(symbol.Target);
visitor.WriteString(symbol.DeclaringSyntaxReferences.FirstOrDefault()?.SyntaxTree.FilePath ?? "");
}
public static SerializableSymbolAndProjectId Dehydrate(
IAliasSymbol alias, Document document)
{
return alias == null
? null
: Dehydrate(new SymbolAndProjectId(alias, document.Project.Id));
}
// We must verify that the alias actually binds back to the thing it's aliasing.
// It's possible there's another symbol with the same name as the alias that binds
// first
private static bool ValidateAliasForTarget(IAliasSymbol aliasReplacement, SemanticModel semanticModel, ExpressionSyntax node, ISymbol symbol)
{
var aliasName = aliasReplacement.Name;
var boundSymbols = semanticModel.LookupNamespacesAndTypes(node.SpanStart, name: aliasName);
if (boundSymbols.Length == 1)
{
var boundAlias = boundSymbols[0] as IAliasSymbol;
if (boundAlias != null && aliasReplacement.Target.Equals(symbol))
{
return true;
}
}
return false;
}
public override Accessibility VisitAlias(IAliasSymbol symbol)
{
return(symbol.Target.Accept(this));
}
public override void VisitAlias(IAliasSymbol symbol)
{
builder.Add(CreatePart(SymbolDisplayPartKind.AliasName, symbol, symbol.Name));
if (format.LocalOptions.IncludesOption(SymbolDisplayLocalOptions.IncludeType))
{
// ???
AddPunctuation(SyntaxKind.EqualsToken);
symbol.Target.Accept(this);
}
}
public sealed override void VisitAlias(IAliasSymbol symbol)
{
Visit(symbol.Target);
}
public override void VisitAlias(IAliasSymbol symbol)
{
base.VisitAlias(symbol);
}
public override TypeSyntax VisitAlias(IAliasSymbol symbol)
{
return(AddInformationTo(symbol.Name.ToIdentifierName(), symbol));
}
public sealed override void VisitAlias(IAliasSymbol symbol)
{
Visit(symbol.Target);
}
public sealed override void Create(IAliasSymbol symbol, SymbolKeyWriter visitor)
{
visitor.WriteString(symbol.Name);
visitor.WriteSymbolKey(symbol.Target);
visitor.WriteString(symbol.DeclaringSyntaxReferences.FirstOrDefault()?.SyntaxTree.FilePath ?? "");
}
public virtual void VisitAlias(IAliasSymbol symbol)
{
DefaultVisit(symbol);
}
public virtual void VisitAlias(IAliasSymbol symbol)
{
DefaultVisit(symbol);
}
private static bool TryReplaceWithAlias(this ExpressionSyntax node, SemanticModel semanticModel, bool preferAliasToQualifiedName, CancellationToken cancellationToken, out IAliasSymbol aliasReplacement)
{
aliasReplacement = null;
if (!node.IsAliasReplaceableExpression())
{
return false;
}
var symbol = semanticModel.GetSymbolInfo(node, cancellationToken).Symbol;
// If the Symbol is a constructor get its containing type
if (symbol.IsConstructor())
{
symbol = symbol.ContainingType;
}
if (node is QualifiedNameSyntax || node is AliasQualifiedNameSyntax)
{
SyntaxAnnotation aliasAnnotationInfo = null;
// The following condition checks if the user has used alias in the original code and
// if so the expression is replaced with the Alias
if (node is QualifiedNameSyntax)
{
var qualifiedNameNode = (QualifiedNameSyntax)node;
if (qualifiedNameNode.Right.Identifier.HasAnnotations(AliasAnnotation.Kind))
{
aliasAnnotationInfo = qualifiedNameNode.Right.Identifier.GetAnnotations(AliasAnnotation.Kind).Single();
}
}
if (node is AliasQualifiedNameSyntax)
{
var aliasQualifiedNameNode = (AliasQualifiedNameSyntax)node;
if (aliasQualifiedNameNode.Name.Identifier.HasAnnotations(AliasAnnotation.Kind))
{
aliasAnnotationInfo = aliasQualifiedNameNode.Name.Identifier.GetAnnotations(AliasAnnotation.Kind).Single();
}
}
if (aliasAnnotationInfo != null)
{
var aliasName = AliasAnnotation.GetAliasName(aliasAnnotationInfo);
var aliasIdentifier = SyntaxFactory.IdentifierName(aliasName);
var aliasTypeInfo = semanticModel.GetSpeculativeAliasInfo(node.SpanStart, aliasIdentifier, SpeculativeBindingOption.BindAsTypeOrNamespace);
if (aliasTypeInfo != null)
{
aliasReplacement = aliasTypeInfo;
return ValidateAliasForTarget(aliasReplacement, semanticModel, node, symbol);
}
}
}
if (node.Kind() == SyntaxKind.IdentifierName &&
semanticModel.GetAliasInfo((IdentifierNameSyntax)node, cancellationToken) != null)
{
return false;
}
// an alias can only replace a type or namespace
if (symbol == null ||
(symbol.Kind != SymbolKind.Namespace && symbol.Kind != SymbolKind.NamedType))
{
return false;
}
if (node is QualifiedNameSyntax)
{
var qualifiedName = (QualifiedNameSyntax)node;
if (!qualifiedName.Right.HasAnnotation(Simplifier.SpecialTypeAnnotation))
{
var type = semanticModel.GetTypeInfo(node, cancellationToken).Type;
if (type != null)
{
var keywordKind = GetPredefinedKeywordKind(type.SpecialType);
if (keywordKind != SyntaxKind.None)
{
preferAliasToQualifiedName = false;
}
}
}
}
if (node is AliasQualifiedNameSyntax)
{
var aliasQualifiedNameSyntax = (AliasQualifiedNameSyntax)node;
if (!aliasQualifiedNameSyntax.Name.HasAnnotation(Simplifier.SpecialTypeAnnotation))
{
var type = semanticModel.GetTypeInfo(node, cancellationToken).Type;
if (type != null)
{
var keywordKind = GetPredefinedKeywordKind(type.SpecialType);
if (keywordKind != SyntaxKind.None)
{
preferAliasToQualifiedName = false;
}
}
}
}
aliasReplacement = GetAliasForSymbol((INamespaceOrTypeSymbol)symbol, node.GetFirstToken(), semanticModel, cancellationToken);
if (aliasReplacement != null && preferAliasToQualifiedName)
{
return ValidateAliasForTarget(aliasReplacement, semanticModel, node, symbol);
}
return false;
}
public override object VisitAlias(IAliasSymbol aliasSymbol)
{
WriteType(SymbolKeyType.Alias);
AliasSymbolKey.Create(aliasSymbol, this);
return(null);
}
public override Accessibility VisitAlias(IAliasSymbol symbol) => symbol.Target.Accept(this);
public RenameRewriter(RenameRewriterParameters parameters)
: base(visitIntoStructuredTrivia: true)
{
this.documentId = parameters.Document.Id;
this.renameRenamableSymbolDeclaration = parameters.RenamedSymbolDeclarationAnnotation;
this.solution = parameters.OriginalSolution;
this.replacementText = parameters.ReplacementText;
this.originalText = parameters.OriginalText;
this.possibleNameConflicts = parameters.PossibleNameConflicts;
this.renameLocations = parameters.RenameLocations;
this.conflictLocations = parameters.ConflictLocationSpans;
this.cancellationToken = parameters.CancellationToken;
this.semanticModel = (SemanticModel)parameters.SemanticModel;
this.renamedSymbol = parameters.RenameSymbol;
this.replacementTextValid = parameters.ReplacementTextValid;
this.renameSpansTracker = parameters.RenameSpansTracker;
this.isRenamingInStrings = parameters.OptionSet.GetOption(RenameOptions.RenameInStrings);
this.isRenamingInComments = parameters.OptionSet.GetOption(RenameOptions.RenameInComments);
this.stringAndCommentTextSpans = parameters.StringAndCommentTextSpans;
this.renameAnnotations = parameters.RenameAnnotations;
this.aliasSymbol = this.renamedSymbol as IAliasSymbol;
this.renamableDeclarationLocation = this.renamedSymbol.Locations.Where(loc => loc.IsInSource && loc.SourceTree == semanticModel.SyntaxTree).FirstOrDefault();
this.isVerbatim = this.replacementText.StartsWith("@");
this.simplificationService = LanguageService.GetService<ISimplificationService>(parameters.Document);
}