// 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 System.Linq;
using System.Threading;
using Microsoft.CodeAnalysis;
using Microsoft.CodeAnalysis.Shared.Extensions;
 
namespace Microsoft.CodeAnalysis.IntroduceVariable
{
    internal partial class AbstractIntroduceVariableService<TService, TExpressionSyntax, TTypeSyntax, TTypeDeclarationSyntax, TQueryExpressionSyntax, TNameSyntax>
    {
        private partial class State
        {
            private bool IsInConstructorInitializerContext(
                CancellationToken cancellationToken)
            {
                // Note: if we're in a lambda that has a block body, then we don't ever get here
                // because of the early check for IsInBlockContext.
                if (!_service.IsInConstructorInitializer(Expression))
                {
                    return false;
                }
 
                var bindingMap = GetSemanticMap(cancellationToken);
 
                // Can't extract out if a parameter is referenced.
                if (bindingMap.AllReferencedSymbols.OfType<IParameterSymbol>().Any())
                {
                    return false;
                }
 
                // Can't extract out an anonymous type used in a constructor initializer.
                var info = Document.SemanticModel.GetTypeInfo(Expression, cancellationToken);
                if (info.Type.ContainsAnonymousType())
                {
                    return false;
                }
 
                return true;
            }
        }
    }
}