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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.
using System;
using System.Collections.Immutable;
using Microsoft.AspNetCore.Components.Analyzers;
using Microsoft.CodeAnalysis;
using Microsoft.CodeAnalysis.Diagnostics;
namespace Microsoft.Extensions.Internal;
/// <summary>
/// This API supports infrastructure and is not intended to be used
/// directly from your code. This API may change or be removed in future releases.
/// </summary>
[DiagnosticAnalyzer(LanguageNames.CSharp)]
public class ComponentInternalUsageDiagnosticAnalyzer : DiagnosticAnalyzer
{
private static readonly string[] NamespaceParts = new[] { "RenderTree", "Components", "AspNetCore", "Microsoft", };
private readonly InternalUsageAnalyzer _inner;
public ComponentInternalUsageDiagnosticAnalyzer()
{
// We don't have in *internal* attribute in Blazor.
_inner = new InternalUsageAnalyzer(IsInInternalNamespace, hasInternalAttribute: null, DiagnosticDescriptors.DoNotUseRenderTreeTypes);
}
public override ImmutableArray<DiagnosticDescriptor> SupportedDiagnostics => ImmutableArray.Create(DiagnosticDescriptors.DoNotUseRenderTreeTypes);
public override void Initialize(AnalysisContext context)
{
context.EnableConcurrentExecution();
context.ConfigureGeneratedCodeAnalysis(GeneratedCodeAnalysisFlags.Analyze | GeneratedCodeAnalysisFlags.ReportDiagnostics);
_inner.Register(context);
}
private static bool IsInInternalNamespace(ISymbol symbol)
{
var @namespace = symbol?.ContainingNamespace;
for (var i = 0; i < NamespaceParts.Length; i++)
{
if (@namespace == null || !string.Equals(NamespaceParts[i], @namespace.Name, StringComparison.Ordinal))
{
return false;
}
@namespace = @namespace.ContainingNamespace;
}
return @namespace.IsGlobalNamespace;
}
}
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