File: DiagnosticAnalyzer\DiagnosticAnalyzer.cs
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Project: src\src\Compilers\Core\Portable\Microsoft.CodeAnalysis.csproj (Microsoft.CodeAnalysis)
// 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.Collections.Immutable;
using Roslyn.Utilities;
 
namespace Microsoft.CodeAnalysis.Diagnostics
{
    /// <summary>
    /// The base type for diagnostic analyzers.
    /// </summary>
    public abstract class DiagnosticAnalyzer
    {
        /// <summary>
        /// Returns a set of descriptors for the diagnostics that this analyzer is capable of producing.
        /// </summary>
        public abstract ImmutableArray<DiagnosticDescriptor> SupportedDiagnostics { get; }
 
        /// <summary>
        /// Called once at session start to register actions in the analysis context.
        /// </summary>
        /// <param name="context"></param>
        public abstract void Initialize(AnalysisContext context);
 
        public sealed override bool Equals(object? obj)
        {
            return (object?)this == obj;
        }
 
        public sealed override int GetHashCode() => base.GetHashCode();
 
        public sealed override string ToString()
        {
            return this.GetType().ToString();
        }
    }
}