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// Copyright (c) .NET Foundation and contributors. All rights reserved.
// Licensed under the MIT license. See LICENSE file in the project root for full license information.
using System;
using System.Diagnostics.CodeAnalysis;
using ILLink.RoslynAnalyzer.TrimAnalysis;
using ILLink.Shared;
using ILLink.Shared.TrimAnalysis;
using Microsoft.CodeAnalysis;
namespace ILLink.RoslynAnalyzer
{
internal sealed class DynamicallyAccessedMembersTypeHierarchy
{
public static void ApplyDynamicallyAccessedMembersToTypeHierarchy(Location typeLocation, INamedTypeSymbol type, Action<Diagnostic> reportDiagnostic)
{
var annotation = FlowAnnotations.GetTypeAnnotation(type);
// We need to apply annotations to this type, and its base/interface types (recursively)
// But the annotations on base/interfaces may already be applied so we don't need to apply those
// again (and should avoid doing so as it would produce extra warnings).
var reflectionAccessAnalyzer = new ReflectionAccessAnalyzer(reportDiagnostic, type);
if (type.BaseType is INamedTypeSymbol baseType)
{
var baseAnnotation = FlowAnnotations.GetTypeAnnotation(baseType);
var annotationToApplyToBase = Annotations.GetMissingMemberTypes(annotation, baseAnnotation);
// Apply any annotations that didn't exist on the base type to the base type.
// This may produce redundant warnings when the annotation is DAMT.All or DAMT.PublicConstructors and the base already has a
// subset of those annotations.
reflectionAccessAnalyzer.GetReflectionAccessDiagnostics(typeLocation, baseType, annotationToApplyToBase, declaredOnly: false);
}
// Most of the DynamicallyAccessedMemberTypes don't select members on interfaces. We only need to apply
// annotations to interfaces separately if dealing with DAMT.All or DAMT.Interfaces.
if (annotation.HasFlag(DynamicallyAccessedMemberTypes.Interfaces))
{
var annotationToApplyToInterfaces = annotation == DynamicallyAccessedMemberTypes.All ? annotation : DynamicallyAccessedMemberTypes.Interfaces;
foreach (var iface in type.AllInterfaces)
{
if (FlowAnnotations.GetTypeAnnotation(iface).HasFlag(annotationToApplyToInterfaces))
continue;
// Apply All or Interfaces to the interface type.
// DAMT.All may produce redundant warnings from implementing types, when the interface type already had some annotations.
reflectionAccessAnalyzer.GetReflectionAccessDiagnostics(typeLocation, iface, annotationToApplyToInterfaces, declaredOnly: false);
}
}
// The annotations this type inherited from its base types or interfaces should not produce
// warnings on the respective base/interface members, since those are already covered by applying
// the annotations to those types. So we only need to handle the members directly declared on this type.
reflectionAccessAnalyzer.GetReflectionAccessDiagnostics(typeLocation, type, annotation, declaredOnly: true);
}
}
}
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