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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 Analyzer.Utilities.Extensions;
using Microsoft.CodeAnalysis.Diagnostics;
namespace Microsoft.CodeAnalysis.Analyzers.MetaAnalyzers
{
public abstract partial class DiagnosticAnalyzerCorrectnessAnalyzer : DiagnosticAnalyzer
{
protected abstract class DiagnosticAnalyzerSymbolAnalyzer
{
protected DiagnosticAnalyzerSymbolAnalyzer(INamedTypeSymbol diagnosticAnalyzer, INamedTypeSymbol diagnosticAnalyzerAttribute)
{
DiagnosticAnalyzer = diagnosticAnalyzer;
DiagnosticAnalyzerAttribute = diagnosticAnalyzerAttribute;
}
protected INamedTypeSymbol DiagnosticAnalyzer { get; }
protected INamedTypeSymbol DiagnosticAnalyzerAttribute { get; }
protected bool IsDiagnosticAnalyzer(INamedTypeSymbol type)
{
return SymbolEqualityComparer.Default.Equals(type, DiagnosticAnalyzer);
}
internal void AnalyzeSymbol(SymbolAnalysisContext symbolContext)
{
var namedType = (INamedTypeSymbol)symbolContext.Symbol;
if (namedType.GetBaseTypes().Any(IsDiagnosticAnalyzer))
{
AnalyzeDiagnosticAnalyzer(symbolContext);
}
}
protected abstract void AnalyzeDiagnosticAnalyzer(SymbolAnalysisContext symbolContext);
protected bool HasDiagnosticAnalyzerAttribute(INamedTypeSymbol namedType, INamedTypeSymbol? attributeUsageAttribute)
{
foreach (AttributeData attribute in namedType.GetApplicableAttributes(attributeUsageAttribute))
{
if (attribute.AttributeClass.DerivesFrom(DiagnosticAnalyzerAttribute))
{
return true;
}
}
return false;
}
}
}
}
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