using System;
using System.Collections.Generic;

namespace AspClassic.Parser;

/// <summary>
/// A parse tree for a Catch block statement.
/// </summary>
public sealed class CatchBlockStatement : BlockStatement
{
	private readonly CatchStatement _CatchStatement;

	/// <summary>
	/// The Catch statement.
	/// </summary>
	public CatchStatement CatchStatement => _CatchStatement;

	/// <summary>
	/// Constructs a new parse tree for a Catch block statement.
	/// </summary>
	/// <param name="catchStatement">The Catch statement.</param>
	/// <param name="statements">The statements in the block.</param>
	/// <param name="span">The location of the parse tree.</param>
	/// <param name="comments">The comments for the parse tree.</param>
	public CatchBlockStatement(CatchStatement catchStatement, StatementCollection statements, Span span, IList<Comment> comments)
		: base(TreeType.CatchBlockStatement, statements, span, comments)
	{
		if (catchStatement == null)
		{
			throw new ArgumentNullException("catchStatement");
		}
		SetParent(catchStatement);
		_CatchStatement = catchStatement;
	}

	protected override void GetChildTrees(IList<Tree> childList)
	{
		Tree.AddChild(childList, CatchStatement);
		base.GetChildTrees(childList);
	}
}