private void AddFix(string codeFixTitle, CodeFixContext context, SyntaxNode root, SyntaxNode classDecl, SyntaxGenerator generator, params string[] languages)
{
var fix = new MyCodeAction(
codeFixTitle,
c => GetFix(context.Document, root, classDecl, generator, languages));
context.RegisterCodeFix(fix, context.Diagnostics);
}
public override async Task AddDocumentFixesAsync(Document document, ImmutableArray<Diagnostic> diagnostics, Action<CodeAction> addFix, FixAllContext fixAllContext)
{
var changedDocument = await AddSimplifierAnnotationsAsync(document, diagnostics, fixAllContext).ConfigureAwait(false);
var title = GetFixAllTitle(fixAllContext);
var codeAction = new MyCodeAction(title, (c) => Task.FromResult(changedDocument));
addFix(codeAction);
}
private async Task<Tuple<CodeAction, string>> GetCodeActionAsync(
Document document,
TextSpan textSpan,
CancellationToken cancellationToken)
{
var result = await ExtractMethodService.ExtractMethodAsync(
document,
textSpan,
cancellationToken: cancellationToken).ConfigureAwait(false);
Contract.ThrowIfNull(result);
if (result.Succeeded || result.SucceededWithSuggestion)
{
var documentOptions = await document.GetOptionsAsync(cancellationToken).ConfigureAwait(false);
var description = documentOptions.GetOption(ExtractMethodOptions.AllowMovingDeclaration) ?
FeaturesResources.Extract_Method_plus_Local : FeaturesResources.Extract_Method;
var codeAction = new MyCodeAction(description, (c) => AddRenameAnnotationAsync(result.Document, result.InvocationNameToken, c));
var methodBlock = result.MethodDeclarationNode;
return Tuple.Create<CodeAction, string>(codeAction, methodBlock.ToString());
}
return null;
}
public override async Task RegisterCodeFixesAsync(CodeFixContext context)
{
var document = context.Document;
var span = context.Span;
var root = await document.GetSyntaxRootAsync(context.CancellationToken).ConfigureAwait(false);
var node = root.FindNode(span, getInnermostNodeForTie: true);
var codeAction = new MyCodeAction(
CSharpFeaturesResources.UseExplicitType,
c => HandleDeclarationAsync(document, root, node, context.CancellationToken));
context.RegisterCodeFix(codeAction, context.Diagnostics.First());
}
public sealed override async Task RegisterCodeFixesAsync(CodeFixContext context)
{
var document = context.Document;
var span = context.Span;
var cancellationToken = context.CancellationToken;
cancellationToken.ThrowIfCancellationRequested();
var root = await document.GetSyntaxRootAsync(cancellationToken);
var classDeclaration = root.FindToken(span.Start).Parent?.FirstAncestorOrSelf<ClassDeclarationSyntax>();
if (classDeclaration != null)
{
var title = string.Format(FxCopRulesResources.StaticHolderTypeIsNotStatic, classDeclaration.Identifier.Text);
var codeAction = new MyCodeAction(title, ct => AddStaticKeyword(document, root, classDeclaration));
context.RegisterCodeFix(codeAction, context.Diagnostics);
}
}
public sealed override async Task RegisterCodeFixesAsync(CodeFixContext context)
{
var document = context.Document;
var span = context.Span;
var cancellationToken = context.CancellationToken;
cancellationToken.ThrowIfCancellationRequested();
var root = await document.GetSyntaxRootAsync(cancellationToken).ConfigureAwait(false);
var classDeclaration = root.FindToken(span.Start).Parent?.FirstAncestorOrSelf<ClassDeclarationSyntax>();
if (classDeclaration != null)
{
var codeAction = new MyCodeAction(MicrosoftApiDesignGuidelinesAnalyzersResources.MakeClassStatic,
async ct => await MakeClassStatic(document, root, classDeclaration, ct).ConfigureAwait(false));
context.RegisterCodeFix(codeAction, context.Diagnostics);
}
}
public sealed override async Task RegisterCodeFixesAsync(CodeFixContext context)
{
var document = context.Document;
var span = context.Span;
var diagnostics = context.Diagnostics;
var cancellationToken = context.CancellationToken;
var project = document.Project;
var diagnostic = diagnostics.First();
var root = await document.GetSyntaxRootAsync(cancellationToken).ConfigureAwait(false);
var node = root.FindToken(span.Start).GetAncestors<SyntaxNode>().First(n => n.Span.Contains(span));
using (Logger.LogBlock(FunctionId.Refactoring_FullyQualify, cancellationToken))
{
// Has to be a simple identifier or generic name.
if (node != null && CanFullyQualify(diagnostic, ref node))
{
var semanticModel = await document.GetSemanticModelAsync(cancellationToken).ConfigureAwait(false);
var matchingTypes = await this.GetMatchingTypesAsync(project, semanticModel, node, cancellationToken).ConfigureAwait(false);
var matchingNamespaces = await this.GetMatchingNamespacesAsync(project, semanticModel, node, cancellationToken).ConfigureAwait(false);
if (matchingTypes != null || matchingNamespaces != null)
{
matchingTypes = matchingTypes ?? SpecializedCollections.EmptyEnumerable<ISymbol>();
matchingNamespaces = matchingNamespaces ?? SpecializedCollections.EmptyEnumerable<ISymbol>();
var matchingTypeContainers = FilterAndSort(GetContainers(matchingTypes, semanticModel.Compilation));
var matchingNamespaceContainers = FilterAndSort(GetContainers(matchingNamespaces, semanticModel.Compilation));
var proposedContainers =
matchingTypeContainers.Concat(matchingNamespaceContainers)
.Distinct()
.Take(MaxResults);
var displayService = project.LanguageServices.GetService<ISymbolDisplayService>();
foreach (var container in proposedContainers)
{
var containerName = displayService.ToMinimalDisplayString(semanticModel, node.SpanStart, container);
var syntaxFacts = document.Project.LanguageServices.GetService<ISyntaxFactsService>();
string name;
int arity;
syntaxFacts.GetNameAndArityOfSimpleName(node, out name, out arity);
// Actual member name might differ by case.
string memberName;
if (this.IgnoreCase)
{
var member = container.GetMembers(name).FirstOrDefault();
memberName = member != null ? member.Name : name;
}
else
{
memberName = name;
}
var codeAction = new MyCodeAction(
$"{containerName}.{memberName}",
c => ProcessNode(document, node, containerName, c));
context.RegisterCodeFix(codeAction, diagnostic);
}
}
}
}
}
public sealed override async Task RegisterCodeFixesAsync(CodeFixContext context)
{
var document = context.Document;
var span = context.Span;
var diagnostics = context.Diagnostics;
var cancellationToken = context.CancellationToken;
var project = document.Project;
var diagnostic = diagnostics.First();
var root = await document.GetSyntaxRootAsync(cancellationToken).ConfigureAwait(false);
var ancestors = root.FindToken(span.Start, findInsideTrivia: true).GetAncestors <SyntaxNode>();
if (!ancestors.Any())
{
return;
}
var node = ancestors.FirstOrDefault(n => n.Span.Contains(span) && n != root);
if (node == null)
{
return;
}
var placeSystemNamespaceFirst = document.Project.Solution.Workspace.Options.GetOption(
OrganizerOptions.PlaceSystemNamespaceFirst, document.Project.Language);
using (Logger.LogBlock(FunctionId.Refactoring_AddImport, cancellationToken))
{
if (!cancellationToken.IsCancellationRequested)
{
if (this.CanAddImport(node, cancellationToken))
{
var semanticModel = await document.GetSemanticModelAsync(cancellationToken).ConfigureAwait(false);
var allSymbolReferences = new List <SymbolReference>();
var finder = new SymbolReferenceFinder(this, document, semanticModel, diagnostic, node, cancellationToken);
// Caches so we don't produce the same data multiple times while searching
// all over the solution.
var projectToAssembly = new ConcurrentDictionary <Project, AsyncLazy <IAssemblySymbol> >(concurrencyLevel: 2, capacity: project.Solution.ProjectIds.Count);
var referenceToCompilation = new ConcurrentDictionary <PortableExecutableReference, Compilation>(concurrencyLevel: 2, capacity: project.Solution.Projects.Sum(p => p.MetadataReferences.Count));
// Look for exact matches first:
await FindResults(projectToAssembly, referenceToCompilation, project, allSymbolReferences, finder, exact : true, cancellationToken : cancellationToken).ConfigureAwait(false);
if (allSymbolReferences.Count == 0)
{
// No exact matches found. Fall back to fuzzy searching.
await FindResults(projectToAssembly, referenceToCompilation, project, allSymbolReferences, finder, exact : false, cancellationToken : cancellationToken).ConfigureAwait(false);
}
// Nothing found at all. No need to proceed.
if (allSymbolReferences.Count == 0)
{
return;
}
cancellationToken.ThrowIfCancellationRequested();
foreach (var reference in allSymbolReferences)
{
var description = this.GetDescription(reference.SearchResult.Symbol, semanticModel, node);
if (description != null)
{
var action = new MyCodeAction(description, c =>
this.AddImportAndReferenceAsync(node, reference, document, placeSystemNamespaceFirst, c));
context.RegisterCodeFix(action, diagnostic);
}
}
}
}
}
}
public sealed override async Task RegisterCodeFixesAsync(CodeFixContext context)
{
var document = context.Document;
var span = context.Span;
var diagnostics = context.Diagnostics;
var cancellationToken = context.CancellationToken;
var project = document.Project;
var diagnostic = diagnostics.First();
var root = await document.GetSyntaxRootAsync(cancellationToken).ConfigureAwait(false);
var ancestors = root.FindToken(span.Start, findInsideTrivia: true).GetAncestors <SyntaxNode>();
if (!ancestors.Any())
{
return;
}
var node = ancestors.FirstOrDefault(n => n.Span.Contains(span) && n != root);
if (node == null)
{
return;
}
var placeSystemNamespaceFirst = document.Project.Solution.Workspace.Options.GetOption(Microsoft.CodeAnalysis.Shared.Options.OrganizerOptions.PlaceSystemNamespaceFirst, document.Project.Language);
using (Logger.LogBlock(FunctionId.Refactoring_AddImport, cancellationToken))
{
if (!cancellationToken.IsCancellationRequested)
{
if (this.CanAddImport(node, cancellationToken))
{
var semanticModel = await document.GetSemanticModelAsync(cancellationToken).ConfigureAwait(false);
var containingType = semanticModel.GetEnclosingNamedType(node.SpanStart, cancellationToken);
var containingTypeOrAssembly = containingType ?? (ISymbol)semanticModel.Compilation.Assembly;
var namespacesInScope = this.GetNamespacesInScope(semanticModel, node, cancellationToken);
var syntaxFacts = document.Project.LanguageServices.GetService <ISyntaxFactsService>();
var matchingTypesNamespaces = await this.GetNamespacesForMatchingTypesAsync(project, diagnostic, node, semanticModel, namespacesInScope, syntaxFacts, cancellationToken).ConfigureAwait(false);
var matchingTypes = await this.GetMatchingTypesAsync(project, diagnostic, node, semanticModel, namespacesInScope, syntaxFacts, cancellationToken).ConfigureAwait(false);
var matchingNamespaces = await this.GetNamespacesForMatchingNamespacesAsync(project, diagnostic, node, semanticModel, namespacesInScope, syntaxFacts, cancellationToken).ConfigureAwait(false);
var matchingExtensionMethodsNamespaces = await this.GetNamespacesForMatchingExtensionMethodsAsync(project, diagnostic, node, semanticModel, namespacesInScope, syntaxFacts, cancellationToken).ConfigureAwait(false);
var matchingFieldsAndPropertiesAsync = await this.GetNamespacesForMatchingFieldsAndPropertiesAsync(project, diagnostic, node, semanticModel, namespacesInScope, syntaxFacts, cancellationToken).ConfigureAwait(false);
var queryPatternsNamespaces = await this.GetNamespacesForQueryPatternsAsync(project, diagnostic, node, semanticModel, namespacesInScope, cancellationToken).ConfigureAwait(false);
if (matchingTypesNamespaces != null || matchingNamespaces != null || matchingExtensionMethodsNamespaces != null || matchingFieldsAndPropertiesAsync != null || queryPatternsNamespaces != null || matchingTypes != null)
{
matchingTypesNamespaces = matchingTypesNamespaces ?? SpecializedCollections.EmptyList <INamespaceSymbol>();
matchingNamespaces = matchingNamespaces ?? SpecializedCollections.EmptyList <INamespaceSymbol>();
matchingExtensionMethodsNamespaces = matchingExtensionMethodsNamespaces ?? SpecializedCollections.EmptyList <INamespaceSymbol>();
matchingFieldsAndPropertiesAsync = matchingFieldsAndPropertiesAsync ?? SpecializedCollections.EmptyList <INamespaceSymbol>();
queryPatternsNamespaces = queryPatternsNamespaces ?? SpecializedCollections.EmptyList <INamespaceSymbol>();
matchingTypes = matchingTypes ?? SpecializedCollections.EmptyList <ITypeSymbol>();
var proposedImports =
matchingTypesNamespaces.Cast <INamespaceOrTypeSymbol>()
.Concat(matchingNamespaces.Cast <INamespaceOrTypeSymbol>())
.Concat(matchingExtensionMethodsNamespaces.Cast <INamespaceOrTypeSymbol>())
.Concat(matchingFieldsAndPropertiesAsync.Cast <INamespaceOrTypeSymbol>())
.Concat(queryPatternsNamespaces.Cast <INamespaceOrTypeSymbol>())
.Concat(matchingTypes.Cast <INamespaceOrTypeSymbol>())
.Distinct()
.Where(NotNull)
.Where(NotGlobalNamespace)
.OrderBy(INamespaceOrTypeSymbolExtensions.CompareNamespaceOrTypeSymbols)
.Take(8)
.ToList();
if (proposedImports.Count > 0)
{
cancellationToken.ThrowIfCancellationRequested();
foreach (var import in proposedImports)
{
var description = this.GetDescription(import, semanticModel, node);
if (description != null)
{
var action = new MyCodeAction(description, (c) =>
this.AddImportAsync(node, import, document, placeSystemNamespaceFirst, cancellationToken));
context.RegisterCodeFix(action, diagnostic);
}
}
}
}
}
}
}
}
public sealed override async Task RegisterCodeFixesAsync(CodeFixContext context)
{
var document = context.Document;
var span = context.Span;
var diagnostics = context.Diagnostics;
var cancellationToken = context.CancellationToken;
var project = document.Project;
var diagnostic = diagnostics.First();
var root = await document.GetSyntaxRootAsync(cancellationToken).ConfigureAwait(false);
var node = root.FindToken(span.Start).GetAncestors <SyntaxNode>().First(n => n.Span.Contains(span));
using (Logger.LogBlock(FunctionId.Refactoring_FullyQualify, cancellationToken))
{
// Has to be a simple identifier or generic name.
if (node != null && CanFullyQualify(diagnostic, ref node))
{
var semanticModel = await document.GetSemanticModelAsync(cancellationToken).ConfigureAwait(false);
var matchingTypes = await this.GetMatchingTypesAsync(project, semanticModel, node, cancellationToken).ConfigureAwait(false);
var matchingNamespaces = await this.GetMatchingNamespacesAsync(project, semanticModel, node, cancellationToken).ConfigureAwait(false);
if (matchingTypes != null || matchingNamespaces != null)
{
matchingTypes = matchingTypes ?? SpecializedCollections.EmptyEnumerable <SymbolResult <ISymbol> >();
matchingNamespaces = matchingNamespaces ?? SpecializedCollections.EmptyEnumerable <SymbolResult <ISymbol> >();
var matchingTypeContainers = FilterAndSort(GetContainers(matchingTypes, semanticModel.Compilation));
var matchingNamespaceContainers = FilterAndSort(GetContainers(matchingNamespaces, semanticModel.Compilation));
var proposedContainers =
matchingTypeContainers.Concat(matchingNamespaceContainers)
.Distinct()
.Take(MaxResults);
var displayService = project.LanguageServices.GetService <ISymbolDisplayService>();
foreach (var container in proposedContainers)
{
var containerName = displayService.ToMinimalDisplayString(semanticModel, node.SpanStart, container);
var syntaxFacts = document.Project.LanguageServices.GetService <ISyntaxFactsService>();
string name;
int arity;
syntaxFacts.GetNameAndArityOfSimpleName(node, out name, out arity);
// Actual member name might differ by case.
string memberName;
if (this.IgnoreCase)
{
var member = container.GetMembers(name).FirstOrDefault();
memberName = member != null ? member.Name : name;
}
else
{
memberName = name;
}
var codeAction = new MyCodeAction(
$"{containerName}.{memberName}",
c => ProcessNode(document, node, containerName, c));
context.RegisterCodeFix(codeAction, diagnostic);
}
}
}
}
}
public sealed override async Task ComputeRefactoringsAsync(CodeRefactoringContext context)
{
var(container, explicitName, name) = await GetContainerAsync(context).ConfigureAwait(false);
if (container == null)
{
return;
}
if (!CheckExplicitNameAllowsConversion(explicitName))
{
return;
}
var(document, _, cancellationToken) = context;
var semanticModel = await document.GetRequiredSemanticModelAsync(cancellationToken).ConfigureAwait(false);
var member = semanticModel.GetDeclaredSymbol(container, cancellationToken);
Contract.ThrowIfNull(member);
if (!CheckMemberCanBeConverted(member))
{
return;
}
var project = document.Project;
var directlyImplementedMembers = new MemberImplementationMap();
// Grab the name off of the *interface* member being implemented, not the implementation
// member. Interface member names are the expected names that people expect to see
// (like "GetEnumerator"), instead of the auto-generated names that the compiler makes
// like: "System.IEnumerable.GetEnumerator"
directlyImplementedMembers.AddRange(member, member.ExplicitOrImplicitInterfaceImplementations());
var codeAction = new MyCodeAction(
string.Format(Implement_0, member.ExplicitOrImplicitInterfaceImplementations().First().Name),
c => ChangeImplementationAsync(project, directlyImplementedMembers, c));
var containingType = member.ContainingType;
var interfaceTypes = directlyImplementedMembers.SelectMany(kvp => kvp.Value).Select(
s => s.ContainingType).Distinct().ToImmutableArray();
var implementedMembersFromSameInterfaces = GetImplementedMembers(containingType, interfaceTypes);
var implementedMembersFromAllInterfaces = GetImplementedMembers(containingType, containingType.AllInterfaces);
var offerForSameInterface = TotalCount(implementedMembersFromSameInterfaces) > TotalCount(directlyImplementedMembers);
var offerForAllInterfaces = TotalCount(implementedMembersFromAllInterfaces) > TotalCount(implementedMembersFromSameInterfaces);
// If there's only one member in the interface we implement, and there are no other
// interfaces, then just offer to switch the implementation for this single member
if (!offerForSameInterface && !offerForAllInterfaces)
{
context.RegisterRefactoring(codeAction);
return;
}
// Otherwise, create a top level action to change the implementation, and offer this
// action, along with either/both of the other two.
var nestedActions = ArrayBuilder <CodeAction> .GetInstance();
nestedActions.Add(codeAction);
if (offerForSameInterface)
{
var interfaceNames = interfaceTypes.Select(i => i.ToDisplayString(NameAndTypeParametersFormat));
nestedActions.Add(new MyCodeAction(
string.Format(Implement_0, string.Join(", ", interfaceNames)),
c => ChangeImplementationAsync(project, implementedMembersFromSameInterfaces, c)));
}
if (offerForAllInterfaces)
{
nestedActions.Add(new MyCodeAction(
Implement_all_interfaces,
c => ChangeImplementationAsync(project, implementedMembersFromAllInterfaces, c)));
}
context.RegisterRefactoring(new CodeAction.CodeActionWithNestedActions(
Implement, nestedActions.ToImmutableAndFree(), isInlinable: true));
}
private static void RegisterFixForMethodOverloads(
CodeFixContext context,
SeparatedSyntaxList <TArgumentSyntax> arguments,
ImmutableArray <ArgumentInsertPositionData <TArgumentSyntax> > methodsAndArgumentsToAdd)
{
var codeFixData = PrepareCreationOfCodeActions(context.Document, arguments, methodsAndArgumentsToAdd);
// To keep the list of offered fixes short we create one menu entry per overload only
// as long as there are two or less overloads present. If there are more overloads we
// create two menu entries. One entry for non-cascading fixes and one with cascading fixes.
var fixes = codeFixData.Length <= 2
? NestByOverload()
: NestByCascading();
context.RegisterFixes(fixes, context.Diagnostics);
return;
ImmutableArray <CodeAction> NestByOverload()
{
using var builderDisposer = ArrayBuilder <CodeAction> .GetInstance(codeFixData.Length, out var builder);
foreach (var data in codeFixData)
{
// We create the mandatory data.CreateChangedSolutionNonCascading fix first.
var title = GetCodeFixTitle(FeaturesResources.Add_parameter_to_0, data.Method, includeParameters: true);
CodeAction codeAction = new MyCodeAction(
title: title,
data.CreateChangedSolutionNonCascading);
if (data.CreateChangedSolutionCascading != null)
{
// We have two fixes to offer. We nest the two fixes in an inlinable CodeAction
// so the IDE is free to either show both at once or to create a sub-menu.
var titleForNesting = GetCodeFixTitle(FeaturesResources.Add_parameter_to_0, data.Method, includeParameters: true);
var titleCascading = GetCodeFixTitle(FeaturesResources.Add_parameter_to_0_and_overrides_implementations, data.Method,
includeParameters: true);
codeAction = new CodeAction.CodeActionWithNestedActions(
title: titleForNesting,
ImmutableArray.Create(
codeAction,
new MyCodeAction(
title: titleCascading,
data.CreateChangedSolutionCascading)),
isInlinable: true);
}
// codeAction is now either a single fix or two fixes wrapped in a CodeActionWithNestedActions
builder.Add(codeAction);
}
return(builder.ToImmutable());
}
ImmutableArray <CodeAction> NestByCascading()
{
using var builderDisposer = ArrayBuilder <CodeAction> .GetInstance(capacity : 2, out var builder);
var nonCascadingActions = codeFixData.SelectAsArray(data =>
{
var title = GetCodeFixTitle(FeaturesResources.Add_to_0, data.Method, includeParameters: true);
return((CodeAction) new MyCodeAction(title: title, data.CreateChangedSolutionNonCascading));
});
var cascadingActions = codeFixData.SelectAsArray(
data => data.CreateChangedSolutionCascading != null,
data =>
{
var title = GetCodeFixTitle(FeaturesResources.Add_to_0, data.Method, includeParameters: true);
return((CodeAction) new MyCodeAction(title: title, data.CreateChangedSolutionCascading !));
});
private IEnumerable<CodeAction> CreateActions(
CodeFixContext context, Document document, Diagnostic diagnostic,
SyntaxNode node, SemanticModel semanticModel,
IEnumerable<INamespaceOrTypeSymbol> proposedContainers,
ISymbolDisplayService displayService)
{
foreach (var container in proposedContainers)
{
var containerName = displayService.ToMinimalDisplayString(semanticModel, node.SpanStart, container);
var name = GetNodeName(document, node);
// Actual member name might differ by case.
string memberName;
if (this.IgnoreCase)
{
var member = container.GetMembers(name).FirstOrDefault();
memberName = member != null ? member.Name : name;
}
else
{
memberName = name;
}
var codeAction = new MyCodeAction(
$"{containerName}.{memberName}",
c => ProcessNode(document, node, containerName, c));
yield return codeAction;
}
}
private void RegisterFixForMethodOverloads(
CodeFixContext context,
SeparatedSyntaxList <TArgumentSyntax> arguments,
ImmutableArray <ArgumentInsertPositionData <TArgumentSyntax> > methodsAndArgumentsToAdd)
{
var codeFixData = PrepareCreationOfCodeActions(context.Document, arguments, methodsAndArgumentsToAdd);
// To keep the list of offered fixes short we create one menu entry per overload only
// as long as there are two or less overloads present. If there are more overloads we
// create two menu entries. One entry for non-cascading fixes and one with cascading fixes.
var fixes = codeFixData.Length <= 2
? NestByOverload()
: NestByCascading();
context.RegisterFixes(fixes, context.Diagnostics);
return;
ImmutableArray <CodeAction> NestByOverload()
{
var builder = ArrayBuilder <CodeAction> .GetInstance(codeFixData.Length);
foreach (var data in codeFixData)
{
// We create the mandatory data.CreateChangedSolutionNonCascading fix first.
var title = GetCodeFixTitle(FeaturesResources.Add_parameter_to_0, data.Method, includeParameters: true);
CodeAction codeAction = new MyCodeAction(
title: title,
data.CreateChangedSolutionNonCascading);
if (data.CreateChangedSolutionCascading != null)
{
// We have two fixes to offer. We nest the two fixes in an inlinable CodeAction
// so the IDE is free to either show both at once or to create a sub-menu.
var titleForNesting = GetCodeFixTitle(FeaturesResources.Add_parameter_to_0, data.Method, includeParameters: true);
var titleCascading = GetCodeFixTitle(FeaturesResources.Add_parameter_to_0_and_overrides_implementations, data.Method,
includeParameters: true);
codeAction = new CodeAction.CodeActionWithNestedActions(
title: titleForNesting,
ImmutableArray.Create(
codeAction,
new MyCodeAction(
title: titleCascading,
data.CreateChangedSolutionCascading)),
isInlinable: true);
}
// codeAction is now either a single fix or two fixes wrapped in a CodeActionWithNestedActions
builder.Add(codeAction);
}
return(builder.ToImmutableAndFree());
}
ImmutableArray <CodeAction> NestByCascading()
{
var builder = ArrayBuilder <CodeAction> .GetInstance(2);
var nonCascadingActions = ImmutableArray.CreateRange <CodeFixData, CodeAction>(codeFixData, data =>
{
var title = GetCodeFixTitle(FeaturesResources.Add_to_0, data.Method, includeParameters: true);
return(new MyCodeAction(title: title, data.CreateChangedSolutionNonCascading));
});
var cascading = codeFixData.Where(data => data.CreateChangedSolutionCascading != null);
var cascadingActions = ImmutableArray.CreateRange <CodeAction>(cascading.Select(data =>
{
var title = GetCodeFixTitle(FeaturesResources.Add_to_0, data.Method, includeParameters: true);
return(new MyCodeAction(title: title, data.CreateChangedSolutionCascading));
}));
var aMethod = codeFixData.First().Method; // We need to term the MethodGroup and need an arbitrary IMethodSymbol to do so.
var nestedNonCascadingTitle = GetCodeFixTitle(FeaturesResources.Add_parameter_to_0, aMethod, includeParameters: false);
// Create a sub-menu entry with all the non-cascading CodeActions.
// We make sure the IDE does not inline. Otherwise the context menu gets flooded with our fixes.
builder.Add(new CodeAction.CodeActionWithNestedActions(nestedNonCascadingTitle, nonCascadingActions, isInlinable: false));
if (cascadingActions.Length > 0)
{
// if there are cascading CodeActions create a second sub-menu.
var nestedCascadingTitle = GetCodeFixTitle(FeaturesResources.Add_parameter_to_0_and_overrides_implementations,
aMethod, includeParameters: false);
builder.Add(new CodeAction.CodeActionWithNestedActions(nestedCascadingTitle, cascadingActions, isInlinable: false));
}
return(builder.ToImmutableAndFree());
}
}
public sealed override Task ComputeRefactoringsAsync(CodeRefactoringContext context)
{
var codeAction = new MyCodeAction(context.Document);
context.RegisterRefactoring(codeAction);
return SpecializedTasks.EmptyTask;
}
public sealed override async Task RegisterCodeFixesAsync(CodeFixContext context)
{
var document = context.Document;
var span = context.Span;
var diagnostics = context.Diagnostics;
var cancellationToken = context.CancellationToken;
var project = document.Project;
var diagnostic = diagnostics.First();
var root = await document.GetSyntaxRootAsync(cancellationToken).ConfigureAwait(false);
var ancestors = root.FindToken(span.Start, findInsideTrivia: true).GetAncestors<SyntaxNode>();
if (!ancestors.Any())
{
return;
}
var node = ancestors.FirstOrDefault(n => n.Span.Contains(span) && n != root);
if (node == null)
{
return;
}
var placeSystemNamespaceFirst = document.Project.Solution.Workspace.Options.GetOption(Microsoft.CodeAnalysis.Shared.Options.OrganizerOptions.PlaceSystemNamespaceFirst, document.Project.Language);
using (Logger.LogBlock(FunctionId.Refactoring_AddImport, cancellationToken))
{
if (!cancellationToken.IsCancellationRequested)
{
if (this.CanAddImport(node, cancellationToken))
{
var semanticModel = await document.GetSemanticModelAsync(cancellationToken).ConfigureAwait(false);
var containingType = semanticModel.GetEnclosingNamedType(node.SpanStart, cancellationToken);
var containingTypeOrAssembly = containingType ?? (ISymbol)semanticModel.Compilation.Assembly;
var namespacesInScope = this.GetNamespacesInScope(semanticModel, node, cancellationToken);
var syntaxFacts = document.Project.LanguageServices.GetService<ISyntaxFactsService>();
var matchingTypesNamespaces = await this.GetNamespacesForMatchingTypesAsync(project, diagnostic, node, semanticModel, namespacesInScope, syntaxFacts, cancellationToken).ConfigureAwait(false);
var matchingTypes = await this.GetMatchingTypesAsync(project, diagnostic, node, semanticModel, namespacesInScope, syntaxFacts, cancellationToken).ConfigureAwait(false);
var matchingNamespaces = await this.GetNamespacesForMatchingNamespacesAsync(project, diagnostic, node, semanticModel, namespacesInScope, syntaxFacts, cancellationToken).ConfigureAwait(false);
var matchingExtensionMethodsNamespaces = await this.GetNamespacesForMatchingExtensionMethodsAsync(project, diagnostic, node, semanticModel, namespacesInScope, syntaxFacts, cancellationToken).ConfigureAwait(false);
var matchingFieldsAndPropertiesAsync = await this.GetNamespacesForMatchingFieldsAndPropertiesAsync(project, diagnostic, node, semanticModel, namespacesInScope, syntaxFacts, cancellationToken).ConfigureAwait(false);
var queryPatternsNamespaces = await this.GetNamespacesForQueryPatternsAsync(project, diagnostic, node, semanticModel, namespacesInScope, cancellationToken).ConfigureAwait(false);
if (matchingTypesNamespaces != null || matchingNamespaces != null || matchingExtensionMethodsNamespaces != null || matchingFieldsAndPropertiesAsync != null || queryPatternsNamespaces != null || matchingTypes != null)
{
matchingTypesNamespaces = matchingTypesNamespaces ?? SpecializedCollections.EmptyList<INamespaceSymbol>();
matchingNamespaces = matchingNamespaces ?? SpecializedCollections.EmptyList<INamespaceSymbol>();
matchingExtensionMethodsNamespaces = matchingExtensionMethodsNamespaces ?? SpecializedCollections.EmptyList<INamespaceSymbol>();
matchingFieldsAndPropertiesAsync = matchingFieldsAndPropertiesAsync ?? SpecializedCollections.EmptyList<INamespaceSymbol>();
queryPatternsNamespaces = queryPatternsNamespaces ?? SpecializedCollections.EmptyList<INamespaceSymbol>();
matchingTypes = matchingTypes ?? SpecializedCollections.EmptyList<ITypeSymbol>();
var proposedImports =
matchingTypesNamespaces.Cast<INamespaceOrTypeSymbol>()
.Concat(matchingNamespaces.Cast<INamespaceOrTypeSymbol>())
.Concat(matchingExtensionMethodsNamespaces.Cast<INamespaceOrTypeSymbol>())
.Concat(matchingFieldsAndPropertiesAsync.Cast<INamespaceOrTypeSymbol>())
.Concat(queryPatternsNamespaces.Cast<INamespaceOrTypeSymbol>())
.Concat(matchingTypes.Cast<INamespaceOrTypeSymbol>())
.Distinct()
.Where(NotNull)
.Where(NotGlobalNamespace)
.OrderBy(INamespaceOrTypeSymbolExtensions.CompareNamespaceOrTypeSymbols)
.Take(8)
.ToList();
if (proposedImports.Count > 0)
{
cancellationToken.ThrowIfCancellationRequested();
foreach (var import in proposedImports)
{
var action = new MyCodeAction(this.GetDescription(import, semanticModel, node), (c) =>
this.AddImportAsync(node, import, document, placeSystemNamespaceFirst, cancellationToken));
context.RegisterCodeFix(action, diagnostic);
}
}
}
}
}
}
}
protected override async Task<ImmutableArray<CodeAction>> GetRefactoringsForSingleParameterAsync(
Document document, IParameterSymbol parameter, SyntaxNode functionDeclaration, IMethodSymbol method,
IBlockOperation? blockStatementOpt, CancellationToken cancellationToken)
{
// Only supported for constructor parameters.
if (method.MethodKind != MethodKind.Constructor)
return ImmutableArray<CodeAction>.Empty;
var typeDeclaration = functionDeclaration.GetAncestor<TTypeDeclarationSyntax>();
if (typeDeclaration == null)
return ImmutableArray<CodeAction>.Empty;
var assignmentStatement = TryFindFieldOrPropertyAssignmentStatement(
parameter, blockStatementOpt);
if (assignmentStatement != null)
{
// We're already assigning this parameter to a field/property in this type.
// So there's nothing more for us to do.
return ImmutableArray<CodeAction>.Empty;
}
// Haven't initialized any fields/properties with this parameter. Offer to assign
// to an existing matching field/prop if we can find one, or add a new field/prop
// if we can't.
var rules = await document.GetNamingRulesAsync(cancellationToken).ConfigureAwait(false);
var parameterNameParts = IdentifierNameParts.CreateIdentifierNameParts(parameter, rules);
if (parameterNameParts.BaseName == "")
{
return ImmutableArray<CodeAction>.Empty;
}
var fieldOrProperty = await TryFindMatchingUninitializedFieldOrPropertySymbolAsync(
document, parameter, blockStatementOpt, rules, parameterNameParts.BaseNameParts, cancellationToken).ConfigureAwait(false);
if (fieldOrProperty != null)
{
// Found a field/property that this parameter should be assigned to.
// Just offer the simple assignment to it.
var resource = fieldOrProperty.Kind == SymbolKind.Field
? FeaturesResources.Initialize_field_0
: FeaturesResources.Initialize_property_0;
var title = string.Format(resource, fieldOrProperty.Name);
return ImmutableArray.Create<CodeAction>(new MyCodeAction(
title,
c => AddSymbolInitializationAsync(
document, parameter, functionDeclaration, blockStatementOpt, fieldOrProperty, c)));
}
else
{
// Didn't find a field/prop that this parameter could be assigned to.
// Offer to create new one and assign to that.
var codeGenService = document.GetLanguageService<ICodeGenerationService>();
var options = await document.GetOptionsAsync(cancellationToken).ConfigureAwait(false);
var requireAccessibilityModifiers = options.GetOption(CodeStyleOptions2.RequireAccessibilityModifiers);
var field = CreateField(requireAccessibilityModifiers, parameter, rules, parameterNameParts.BaseNameParts);
var property = CreateProperty(requireAccessibilityModifiers, parameter, rules, parameterNameParts.BaseNameParts);
var fieldAction = new MyCodeAction(string.Format(FeaturesResources.Create_and_initialize_field_0, field.Name),
c => AddSymbolInitializationAsync(document, parameter, functionDeclaration, blockStatementOpt, field, c));
var propertyAction = new MyCodeAction(string.Format(FeaturesResources.Create_and_initialize_property_0, property.Name),
c => AddSymbolInitializationAsync(document, parameter, functionDeclaration, blockStatementOpt, property, c));
// Check if the surrounding parameters are assigned to another field in this class. If so, offer to
// make this parameter into a field as well. Otherwise, default to generating a property
var siblingFieldOrProperty = TryFindSiblingFieldOrProperty(parameter, blockStatementOpt);
return siblingFieldOrProperty is IFieldSymbol
? ImmutableArray.Create<CodeAction>(fieldAction, propertyAction)
: ImmutableArray.Create<CodeAction>(propertyAction, fieldAction);
}
}