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// 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.Linq;
using System.Threading.Tasks;
using Microsoft.CodeAnalysis.CodeFixes;
using Microsoft.CodeAnalysis.LanguageService;
using Microsoft.CodeAnalysis.Shared.Extensions;
using Microsoft.CodeAnalysis.Text;
namespace Microsoft.CodeAnalysis.GenerateDefaultConstructors;
internal abstract class AbstractGenerateDefaultConstructorCodeFixProvider : CodeFixProvider
{
public override FixAllProvider? GetFixAllProvider() => null;
protected abstract SyntaxToken? TryGetTypeName(SyntaxNode typeDeclaration);
public override async Task RegisterCodeFixesAsync(CodeFixContext context)
{
var cancellationToken = context.CancellationToken;
var document = context.Document;
var diagnostic = context.Diagnostics.FirstOrDefault();
if (diagnostic == null)
return;
var root = await document.GetRequiredSyntaxRootAsync(cancellationToken).ConfigureAwait(false);
var headerFacts = document.GetRequiredLanguageService<IHeaderFactsService>();
if (!headerFacts.IsOnTypeHeader(root, diagnostic.Location.SourceSpan.Start, fullHeader: true, out var typeDecl))
return;
var typeName = TryGetTypeName(typeDecl);
if (typeName == null)
return;
var service = document.GetRequiredLanguageService<IGenerateDefaultConstructorsService>();
var actions = await service.GenerateDefaultConstructorsAsync(
document, new TextSpan(typeName.Value.Span.Start, 0), forRefactoring: false, cancellationToken).ConfigureAwait(false);
context.RegisterFixes(actions, diagnostic);
}
}
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