|
// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.
using System.Composition;
using System.Diagnostics.CodeAnalysis;
using System.Threading;
using System.Threading.Tasks;
using Microsoft.CodeAnalysis.CodeRefactorings;
using Microsoft.CodeAnalysis.CSharp.Syntax;
using Microsoft.CodeAnalysis.Editing;
using Microsoft.CodeAnalysis.Shared.Extensions;
using Roslyn.Utilities;
namespace Microsoft.CodeAnalysis.CSharp.ImplementInterface;
[ExportCodeRefactoringProvider(LanguageNames.CSharp, Name = PredefinedCodeRefactoringProviderNames.ImplementInterfaceImplicitly), Shared]
internal class CSharpImplementImplicitlyCodeRefactoringProvider :
AbstractChangeImplementationCodeRefactoringProvider
{
[ImportingConstructor]
[SuppressMessage("RoslynDiagnosticsReliability", "RS0033:Importing constructor should be [Obsolete]", Justification = "Used in test code: https://github.com/dotnet/roslyn/issues/42814")]
public CSharpImplementImplicitlyCodeRefactoringProvider()
{
}
protected override string Implement_0 => FeaturesResources.Implement_0_implicitly;
protected override string Implement_all_interfaces => FeaturesResources.Implement_all_interfaces_implicitly;
protected override string Implement => FeaturesResources.Implement_implicitly;
// We need to be an explicit impl in order to convert to implicit.
protected override bool CheckExplicitNameAllowsConversion(ExplicitInterfaceSpecifierSyntax? explicitName)
=> explicitName != null;
// If we don't implement any interface members explicitly we can't convert this to be
// implicit.
protected override bool CheckMemberCanBeConverted(ISymbol member)
{
var memberInterfaceImplementations = member.ExplicitInterfaceImplementations();
if (memberInterfaceImplementations.Length == 0)
return false;
var containingTypeInterfaces = member.ContainingType.AllInterfaces;
if (containingTypeInterfaces.Length == 0)
return false;
return memberInterfaceImplementations.Any(static (impl, containingTypeInterfaces) => containingTypeInterfaces.Contains(impl.ContainingType), containingTypeInterfaces);
}
// When converting to implicit, we don't need to update any references.
protected override Task UpdateReferencesAsync(Project project, SolutionEditor solutionEditor, ISymbol implMember, INamedTypeSymbol containingType, CancellationToken cancellationToken)
=> Task.CompletedTask;
protected override SyntaxNode ChangeImplementation(SyntaxGenerator generator, SyntaxNode decl, ISymbol _1, ISymbol _2)
=> generator.WithAccessibility(WithoutExplicitImpl(decl), Accessibility.Public);
private static SyntaxNode WithoutExplicitImpl(SyntaxNode decl)
=> decl switch
{
MethodDeclarationSyntax member => member.WithExplicitInterfaceSpecifier(null),
PropertyDeclarationSyntax member => member.WithExplicitInterfaceSpecifier(null),
EventDeclarationSyntax member => member.WithExplicitInterfaceSpecifier(null),
_ => throw ExceptionUtilities.UnexpectedValue(decl),
};
}
|