File: src\Workspaces\SharedUtilitiesAndExtensions\Compiler\CSharp\Extensions\AssignmentExpressionSyntaxExtensions.cs
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Project: src\src\CodeStyle\CSharp\Analyzers\Microsoft.CodeAnalysis.CSharp.CodeStyle.csproj (Microsoft.CodeAnalysis.CSharp.CodeStyle)
// 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.
 
#nullable disable
 
using Microsoft.CodeAnalysis.CSharp.Syntax;
 
namespace Microsoft.CodeAnalysis.CSharp.Extensions;
 
internal static class AssignmentExpressionSyntaxExtensions
{
    internal static bool IsDeconstruction(this AssignmentExpressionSyntax assignment)
    {
        var left = assignment.Left;
        return assignment.Kind() == SyntaxKind.SimpleAssignmentExpression &&
               assignment.OperatorToken.Kind() == SyntaxKind.EqualsToken &&
               (left.Kind() == SyntaxKind.TupleExpression || left.Kind() == SyntaxKind.DeclarationExpression);
    }
}