public override void Initialize(AnalysisContext analysisContext)
{
analysisContext.EnableConcurrentExecution();
analysisContext.ConfigureGeneratedCodeAnalysis(GeneratedCodeAnalysisFlags.None);
analysisContext.RegisterCompilationStartAction(compilationStartContext =>
{
var iEnumerator = WellKnownTypes.IEnumerator(compilationStartContext.Compilation);
var genericIEnumerator = WellKnownTypes.GenericIEnumerator(compilationStartContext.Compilation);
compilationStartContext.RegisterSymbolAction(context =>
{
var namedType = (INamedTypeSymbol)context.Symbol;
// FxCop compat:
// 1. Do not fire for enums.
// 2. Do not fire for enumerators.
// 3. Do not fire for value types without members.
// 4. Externally visible types by default.
// Note all the descriptors/rules for this analyzer have the same ID and category and hence
// will always have identical configured visibility.
if (!namedType.IsValueType ||
namedType.TypeKind == TypeKind.Enum ||
!namedType.MatchesConfiguredVisibility(context.Options, EqualsRule, context.CancellationToken) ||
!namedType.GetMembers().Any(m => !m.IsConstructor()))
{
return;
}
// Enumerators are often ValueTypes to prevent heap allocation when enumerating
if (iEnumerator != null && namedType.DerivesFromOrImplementsAnyConstructionOf(iEnumerator) ||
genericIEnumerator != null && namedType.DerivesFromOrImplementsAnyConstructionOf(genericIEnumerator))
{
return;
}
if (!namedType.OverridesEquals())
{
context.ReportDiagnostic(namedType.CreateDiagnostic(EqualsRule, namedType.Name));
}
if (!namedType.ImplementsEqualityOperators())
{
context.ReportDiagnostic(namedType.CreateDiagnostic(OpEqualityRule, namedType.Name));
}
}, SymbolKind.NamedType);
});
}
public override void Initialize(AnalysisContext analysisContext)
{
analysisContext.EnableConcurrentExecution();
analysisContext.ConfigureGeneratedCodeAnalysis(GeneratedCodeAnalysisFlags.None);
analysisContext.RegisterCompilationStartAction(compilationStartContext =>
{
var iEnumerator = WellKnownTypes.IEnumerator(compilationStartContext.Compilation);
var genericIEnumerator = WellKnownTypes.GenericIEnumerator(compilationStartContext.Compilation);
compilationStartContext.RegisterSymbolAction(context =>
{
var namedType = (INamedTypeSymbol)context.Symbol;
// FxCop compat:
// 1. Do not fire for enums.
// 2. Do not fire for enumerators.
// 3. Do not fire for value types without members.
if (!namedType.IsValueType ||
namedType.TypeKind == TypeKind.Enum ||
namedType.GetResultantVisibility() != SymbolVisibility.Public ||
!namedType.GetMembers().Any(m => !m.IsConstructor()))
{
return;
}
// Enumerators are often ValueTypes to prevent heap allocation when enumerating
if (iEnumerator != null && namedType.DerivesFromOrImplementsAnyConstructionOf(iEnumerator) ||
genericIEnumerator != null && namedType.DerivesFromOrImplementsAnyConstructionOf(genericIEnumerator))
{
return;
}
if (!namedType.OverridesEquals())
{
context.ReportDiagnostic(namedType.CreateDiagnostic(EqualsRule, namedType.Name));
}
if (!namedType.ImplementsEqualityOperators())
{
context.ReportDiagnostic(namedType.CreateDiagnostic(OpEqualityRule, namedType.Name));
}
}, SymbolKind.NamedType);
});
}
