TryExpression.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(TryExpressionProxy))]
public sealed class TryExpression : Expression
{
    public sealed override Type Type { get; }
 
    public sealed override ExpressionType NodeType => ExpressionType.Try;
 
    public Expression Body { get; }
 
    public ReadOnlyCollection<CatchBlock> Handlers { get; }
 
    public Expression? Finally { get; }
 
    public Expression? Fault { get; }
 
    internal TryExpression(Type type, Expression body, Expression @finally, Expression fault, ReadOnlyCollection<CatchBlock> handlers)
    {
        Type = type;
        Body = body;
        Handlers = handlers;
        Finally = @finally;
        Fault = fault;
    }
 
    protected internal override Expression Accept(ExpressionVisitor visitor)
    {
        return visitor.VisitTry(this);
    }
 
    public TryExpression Update(Expression body, IEnumerable<CatchBlock>? handlers, Expression? @finally, Expression? fault)
    {
        if (((body == Body) & (@finally == Finally) & (fault == Fault)) && ExpressionUtils.SameElements(ref handlers, Handlers))
        {
            return this;
        }
        return Expression.MakeTry(Type, body, @finally, fault, handlers);
    }
}