54 lines
2.0 KiB
C#
54 lines
2.0 KiB
C#
using System.Collections.Immutable;
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using System.Linq;
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using System.Threading;
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using Microsoft.CodeAnalysis;
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using Microsoft.CodeAnalysis.CSharp.Syntax;
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using Microsoft.CodeAnalysis.Diagnostics;
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namespace Godot.SourceGenerators
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{
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[DiagnosticAnalyzer(LanguageNames.CSharp)]
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public class EventHandlerSuffixSuppressor : DiagnosticSuppressor
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{
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private static readonly SuppressionDescriptor _descriptor = new(
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id: "GDSP0001",
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suppressedDiagnosticId: "CA1711",
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justification: "Signal delegates are used in events so the naming follows the guidelines.");
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public override ImmutableArray<SuppressionDescriptor> SupportedSuppressions =>
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ImmutableArray.Create(_descriptor);
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public override void ReportSuppressions(SuppressionAnalysisContext context)
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{
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foreach (var diagnostic in context.ReportedDiagnostics)
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{
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AnalyzeDiagnostic(context, diagnostic, context.CancellationToken);
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}
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}
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private static void AnalyzeDiagnostic(SuppressionAnalysisContext context, Diagnostic diagnostic, CancellationToken cancellationToken = default)
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{
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var location = diagnostic.Location;
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var root = location.SourceTree?.GetRoot(cancellationToken);
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var dds = root?
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.FindNode(location.SourceSpan)
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.DescendantNodesAndSelf()
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.OfType<DelegateDeclarationSyntax>()
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.FirstOrDefault();
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if (dds == null)
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return;
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var semanticModel = context.GetSemanticModel(dds.SyntaxTree);
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var delegateSymbol = semanticModel.GetDeclaredSymbol(dds, cancellationToken);
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if (delegateSymbol == null)
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return;
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if (delegateSymbol.GetAttributes().Any(a => a.AttributeClass?.IsGodotSignalAttribute() ?? false))
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{
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context.ReportSuppression(Suppression.Create(_descriptor, diagnostic));
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}
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}
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}
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}
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