ListInitExpression.cs

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using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.Diagnostics;
using System.Dynamic.Utils;
 
namespace System.Linq.Expressions;
 
[DebuggerTypeProxy(typeof(ListInitExpressionProxy))]
public sealed class ListInitExpression : Expression
{
    public sealed override ExpressionType NodeType => ExpressionType.ListInit;
 
    public sealed override Type Type => NewExpression.Type;
 
    public override bool CanReduce => true;
 
    public NewExpression NewExpression { get; }
 
    public ReadOnlyCollection<ElementInit> Initializers { get; }
 
    internal ListInitExpression(NewExpression newExpression, ReadOnlyCollection<ElementInit> initializers)
    {
        NewExpression = newExpression;
        Initializers = initializers;
    }
 
    protected internal override Expression Accept(ExpressionVisitor visitor)
    {
        return visitor.VisitListInit(this);
    }
 
    public override Expression Reduce()
    {
        return MemberInitExpression.ReduceListInit(NewExpression, Initializers, keepOnStack: true);
    }
 
    public ListInitExpression Update(NewExpression newExpression, IEnumerable<ElementInit> initializers)
    {
        if (newExpression == NewExpression && initializers != null && ExpressionUtils.SameElements(ref initializers, Initializers))
        {
            return this;
        }
        return Expression.ListInit(newExpression, initializers);
    }
}