|
// 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;
using System.Collections.Immutable;
using System.Threading;
using System.Threading.Tasks;
using Microsoft.CodeAnalysis.CodeActions;
using Microsoft.CodeAnalysis.CodeFixes;
using Microsoft.CodeAnalysis.Diagnostics;
using Microsoft.CodeAnalysis.Editing;
using Microsoft.CodeAnalysis.LanguageService;
using Microsoft.CodeAnalysis.Shared.Extensions;
namespace Microsoft.CodeAnalysis.RemoveUnnecessaryParentheses;
internal abstract class AbstractRemoveUnnecessaryParenthesesCodeFixProvider<TParenthesizedExpressionSyntax>
: SyntaxEditorBasedCodeFixProvider
where TParenthesizedExpressionSyntax : SyntaxNode
{
public override ImmutableArray<string> FixableDiagnosticIds
=> [IDEDiagnosticIds.RemoveUnnecessaryParenthesesDiagnosticId];
protected abstract bool CanRemoveParentheses(
TParenthesizedExpressionSyntax current, SemanticModel semanticModel, CancellationToken cancellationToken);
public override Task RegisterCodeFixesAsync(CodeFixContext context)
{
RegisterCodeFix(context, AnalyzersResources.Remove_unnecessary_parentheses, nameof(AnalyzersResources.Remove_unnecessary_parentheses));
return Task.CompletedTask;
}
protected override Task FixAllAsync(
Document document, ImmutableArray<Diagnostic> diagnostics,
SyntaxEditor editor, CancellationToken cancellationToken)
{
var syntaxFacts = document.GetRequiredLanguageService<ISyntaxFactsService>();
var originalNodes = diagnostics.SelectAsArray(
d => (TParenthesizedExpressionSyntax)d.AdditionalLocations[0].FindNode(
findInsideTrivia: true, getInnermostNodeForTie: true, cancellationToken));
return editor.ApplyExpressionLevelSemanticEditsAsync(
document, originalNodes,
(semanticModel, current) => current != null && CanRemoveParentheses(current, semanticModel, cancellationToken),
(_, currentRoot, current) => currentRoot.ReplaceNode(current, syntaxFacts.Unparenthesize(current)),
cancellationToken);
}
}
|