public static async Task ComputeRefactoringAsync(RefactoringContext context, ExpressionStatementSyntax expressionStatement)
{
if (context.SupportsSemanticModel)
{
var expression = expressionStatement.Expression as TypeSyntax;
if (expression != null)
{
SemanticModel semanticModel = await context.GetSemanticModelAsync().ConfigureAwait(false);
ITypeSymbol typeSymbol = semanticModel
.GetTypeInfo(expression, context.CancellationToken).Type;
if (typeSymbol?.IsErrorType() == false)
{
string name = SyntaxUtility.CreateIdentifier(typeSymbol, firstCharToLower: true);
if (!string.IsNullOrEmpty(name))
{
context.RegisterRefactoring(
$"Add identifier '{name}'",
c => RefactorAsync(context.Document, expressionStatement, name, c));
}
}
}
}
}
internal static async Task RenameIdentifierAccordingToTypeNameAsync(
RefactoringContext context,
ForEachStatementSyntax forEachStatement)
{
if (forEachStatement.Type != null &&
forEachStatement.Identifier.Span.Contains(context.Span))
{
SemanticModel semanticModel = await context.GetSemanticModelAsync().ConfigureAwait(false);
string oldName = forEachStatement.Identifier.ValueText;
ITypeSymbol typeSymbol = semanticModel.GetTypeInfo(forEachStatement.Type, context.CancellationToken).Type;
if (typeSymbol?.IsErrorType() == false)
{
string newName = SyntaxUtility.CreateIdentifier(
typeSymbol,
firstCharToLower: true);
if (!string.IsNullOrEmpty(newName) &&
!string.Equals(newName, oldName, StringComparison.Ordinal))
{
ISymbol symbol = semanticModel.GetDeclaredSymbol(forEachStatement, context.CancellationToken);
context.RegisterRefactoring(
$"Rename variable to '{newName}'",
cancellationToken => SymbolRenamer.RenameAsync(context.Document, symbol, newName, cancellationToken));
}
}
}
}
public static async Task ComputeRefactoringsAsync(RefactoringContext context, ParameterSyntax parameter)
{
if (!context.IsAnyRefactoringEnabled(
RefactoringIdentifiers.AddParameterNameToParameter,
RefactoringIdentifiers.RenameParameterAccordingToTypeName))
{
return;
}
SemanticModel semanticModel = await context.GetSemanticModelAsync().ConfigureAwait(false);
IParameterSymbol parameterSymbol = semanticModel.GetDeclaredSymbol(parameter, context.CancellationToken);
if (parameterSymbol?.Type == null)
{
return;
}
if (parameter.Identifier.IsMissing)
{
if (context.IsRefactoringEnabled(RefactoringIdentifiers.AddParameterNameToParameter))
{
TextSpan span = (parameter.Type != null)
? TextSpan.FromBounds(parameter.Type.Span.End, parameter.Span.End)
: parameter.Span;
if (span.Contains(context.Span))
{
string name = SyntaxUtility.CreateIdentifier(parameterSymbol.Type, firstCharToLower: true);
if (!string.IsNullOrEmpty(name))
{
context.RegisterRefactoring(
$"Add parameter name '{name}'",
cancellationToken => AddParameterNameToParameterAsync(context.Document, parameter, name, cancellationToken));
}
}
}
}
else if (context.IsRefactoringEnabled(RefactoringIdentifiers.RenameParameterAccordingToTypeName) &&
parameter.Identifier.Span.Contains(context.Span))
{
string name = parameter.Identifier.ValueText;
string newName = SyntaxUtility.CreateIdentifier(parameterSymbol.Type, firstCharToLower: true);
if (!string.IsNullOrEmpty(newName) &&
!string.Equals(name, newName, StringComparison.Ordinal))
{
ISymbol symbol = semanticModel.GetDeclaredSymbol(parameter, context.CancellationToken);
context.RegisterRefactoring(
$"Rename parameter to '{newName}'",
cancellationToken => SymbolRenamer.RenameAsync(context.Document, symbol, newName, cancellationToken));
}
}
}
public static async Task ComputeRefactoringAsync(RefactoringContext context, LocalDeclarationStatementSyntax localDeclaration)
{
if (context.SupportsSemanticModel)
{
TypeSyntax type = localDeclaration.Declaration?.Type;
if (type?.IsVar == false)
{
VariableDeclaratorSyntax declarator = localDeclaration.Declaration.Variables.FirstOrDefault();
if (declarator != null &&
context.Span.Start >= type.Span.Start)
{
SyntaxTriviaList triviaList = type.GetTrailingTrivia();
if (triviaList.Any())
{
SyntaxTrivia trivia = triviaList
.SkipWhile(f => f.IsKind(SyntaxKind.WhitespaceTrivia))
.FirstOrDefault();
if (trivia.IsKind(SyntaxKind.EndOfLineTrivia) &&
context.Span.End <= trivia.Span.Start)
{
SemanticModel semanticModel = await context.GetSemanticModelAsync().ConfigureAwait(false);
ITypeSymbol typeSymbol = semanticModel.GetTypeInfo(type, context.CancellationToken).Type;
if (typeSymbol?.IsErrorType() == false)
{
string name = SyntaxUtility.CreateIdentifier(typeSymbol, firstCharToLower: true);
if (!string.IsNullOrEmpty(name))
{
context.RegisterRefactoring(
$"Add identifier '{name}'",
c => RefactorAsync(context.Document, declarator, type, name, c));
}
}
}
}
}
}
}
}
private static async Task RenameVariableAccordingToTypeNameAsync(
RefactoringContext context,
VariableDeclarationSyntax variableDeclaration)
{
if (variableDeclaration.Type != null &&
variableDeclaration.Parent?.IsKind(SyntaxKind.EventFieldDeclaration) == false &&
variableDeclaration.Variables.Count == 1 &&
variableDeclaration.Variables[0].Identifier.Span.Contains(context.Span))
{
SemanticModel semanticModel = await context.GetSemanticModelAsync().ConfigureAwait(false);
ISymbol symbol = semanticModel.GetDeclaredSymbol(variableDeclaration.Variables[0], context.CancellationToken);
if (symbol != null)
{
ITypeSymbol typeSymbol = semanticModel.GetTypeInfo(variableDeclaration.Type, context.CancellationToken).Type;
if (typeSymbol?.IsErrorType() == false)
{
string newName = SyntaxUtility.CreateIdentifier(
typeSymbol,
FirstCharToLower(symbol));
if (!string.IsNullOrEmpty(newName))
{
if (context.Settings.PrefixFieldIdentifierWithUnderscore &&
symbol.IsField() &&
symbol.IsPrivate() &&
!((IFieldSymbol)symbol).IsConst)
{
newName = TextUtility.ToCamelCaseWithUnderscore(newName);
}
if (!string.Equals(variableDeclaration.Variables[0].Identifier.ValueText, newName, StringComparison.Ordinal))
{
context.RegisterRefactoring(
$"Rename {GetName(symbol)} to '{newName}'",
cancellationToken => SymbolRenamer.RenameAsync(context.Document, symbol, newName, cancellationToken));
}
}
}
}
}
}
private static async Task RenameMethodAccoringToTypeNameAsync(
RefactoringContext context,
MethodDeclarationSyntax methodDeclaration)
{
if (context.IsRefactoringEnabled(RefactoringIdentifiers.RenameMethodAccordingToTypeName) &&
context.SupportsSemanticModel &&
methodDeclaration.ReturnType?.IsVoid() == false &&
methodDeclaration.Identifier.Span.Contains(context.Span))
{
SemanticModel semanticModel = await context.GetSemanticModelAsync().ConfigureAwait(false);
IMethodSymbol methodSymbol = semanticModel.GetDeclaredSymbol(methodDeclaration, context.CancellationToken);
ITypeSymbol typeSymbol = GetType(methodDeclaration.ReturnType, semanticModel, context.CancellationToken);
if (typeSymbol != null)
{
string newName = SyntaxUtility.CreateIdentifier(typeSymbol);
if (!string.IsNullOrEmpty(newName))
{
newName = "Get" + newName;
if (methodSymbol.IsAsync)
{
newName += "Async";
}
if (!string.Equals(newName, methodDeclaration.Identifier.ValueText, StringComparison.Ordinal))
{
context.RegisterRefactoring(
$"Rename method to '{newName}'",
cancellationToken => SymbolRenamer.RenameAsync(context.Document, methodSymbol, newName, cancellationToken));
}
}
}
}
}
public static async Task ComputeRefactoringsAsync(RefactoringContext context, PropertyDeclarationSyntax propertyDeclaration)
{
if (context.IsRefactoringEnabled(RefactoringIdentifiers.MarkMemberAsStatic) &&
propertyDeclaration.Span.Contains(context.Span) &&
MarkMemberAsStaticRefactoring.CanRefactor(propertyDeclaration))
{
context.RegisterRefactoring(
"Mark property as static",
cancellationToken => MarkMemberAsStaticRefactoring.RefactorAsync(context.Document, propertyDeclaration, cancellationToken));
MarkAllMembersAsStaticRefactoring.RegisterRefactoring(context, (ClassDeclarationSyntax)propertyDeclaration.Parent);
}
if (context.IsRefactoringEnabled(RefactoringIdentifiers.ReplacePropertyWithMethod) &&
propertyDeclaration.HeaderSpan().Contains(context.Span) &&
ReplacePropertyWithMethodRefactoring.CanRefactor(context, propertyDeclaration))
{
string propertyName = propertyDeclaration.Identifier.ValueText;
string title = $"Replace '{propertyName}' with method";
if (propertyDeclaration.AccessorList.Accessors.Count > 1)
{
title += "s";
}
context.RegisterRefactoring(
title,
cancellationToken => ReplacePropertyWithMethodRefactoring.RefactorAsync(context.Document, propertyDeclaration, cancellationToken));
}
if (context.IsRefactoringEnabled(RefactoringIdentifiers.UseExpressionBodiedMember) &&
propertyDeclaration.AccessorList?.Span.Contains(context.Span) == true &&
context.SupportsCSharp6 &&
UseExpressionBodiedMemberRefactoring.CanRefactor(propertyDeclaration))
{
context.RegisterRefactoring(
"Use expression-bodied member",
cancellationToken => UseExpressionBodiedMemberRefactoring.RefactorAsync(context.Document, propertyDeclaration, cancellationToken));
}
if (context.IsRefactoringEnabled(RefactoringIdentifiers.RemovePropertyInitializer) &&
RemovePropertyInitializerRefactoring.CanRefactor(context, propertyDeclaration))
{
context.RegisterRefactoring(
"Remove property initializer",
cancellationToken => RemovePropertyInitializerRefactoring.RefactorAsync(context.Document, propertyDeclaration, cancellationToken));
}
if (context.SupportsSemanticModel)
{
if (context.IsAnyRefactoringEnabled(
RefactoringIdentifiers.ExpandProperty,
RefactoringIdentifiers.ExpandPropertyAndAddBackingField) &&
propertyDeclaration.Span.Contains(context.Span) &&
ExpandPropertyRefactoring.CanRefactor(propertyDeclaration))
{
if (context.IsRefactoringEnabled(RefactoringIdentifiers.ExpandProperty))
{
context.RegisterRefactoring(
"Expand property",
cancellationToken => ExpandPropertyRefactoring.RefactorAsync(context.Document, propertyDeclaration, cancellationToken));
}
if (context.IsRefactoringEnabled(RefactoringIdentifiers.ExpandPropertyAndAddBackingField))
{
context.RegisterRefactoring(
"Expand property and add backing field",
cancellationToken => ExpandPropertyAndAddBackingFieldRefactoring.RefactorAsync(context.Document, propertyDeclaration, context.Settings.PrefixFieldIdentifierWithUnderscore, cancellationToken));
}
}
if (context.IsRefactoringEnabled(RefactoringIdentifiers.NotifyPropertyChanged) &&
await NotifyPropertyChangedRefactoring.CanRefactorAsync(context, propertyDeclaration).ConfigureAwait(false))
{
context.RegisterRefactoring(
"Notify property changed",
cancellationToken =>
{
return(NotifyPropertyChangedRefactoring.RefactorAsync(
context.Document,
propertyDeclaration,
context.SupportsCSharp6,
cancellationToken));
});
}
}
if (context.IsRefactoringEnabled(RefactoringIdentifiers.MakeMemberAbstract) &&
propertyDeclaration.HeaderSpan().Contains(context.Span) &&
MakeMemberAbstractRefactoring.CanRefactor(propertyDeclaration))
{
context.RegisterRefactoring(
"Make property abstract",
cancellationToken => MakeMemberAbstractRefactoring.RefactorAsync(context.Document, propertyDeclaration, cancellationToken));
}
if (context.IsRefactoringEnabled(RefactoringIdentifiers.CopyDocumentationCommentFromBaseMember) &&
propertyDeclaration.HeaderSpan().Contains(context.Span))
{
await CopyDocumentationCommentFromBaseMemberRefactoring.ComputeRefactoringAsync(context, propertyDeclaration).ConfigureAwait(false);
}
if (context.IsRefactoringEnabled(RefactoringIdentifiers.RenamePropertyAccordingToTypeName) &&
context.SupportsSemanticModel &&
propertyDeclaration.Type != null &&
propertyDeclaration.Identifier.Span.Contains(context.Span))
{
SemanticModel semanticModel = await context.GetSemanticModelAsync().ConfigureAwait(false);
ITypeSymbol typeSymbol = semanticModel
.GetTypeInfo(propertyDeclaration.Type, context.CancellationToken)
.Type;
if (typeSymbol?.IsErrorType() == false)
{
string newName = SyntaxUtility.CreateIdentifier(typeSymbol);
if (!string.IsNullOrEmpty(newName))
{
newName = TextUtility.FirstCharToUpper(newName);
if (!string.Equals(newName, propertyDeclaration.Identifier.ValueText, StringComparison.Ordinal))
{
ISymbol symbol = semanticModel.GetDeclaredSymbol(propertyDeclaration, context.CancellationToken);
context.RegisterRefactoring(
$"Rename property to '{newName}'",
cancellationToken => SymbolRenamer.RenameAsync(context.Document, symbol, newName, cancellationToken));
}
}
}
}
}
