using System;
using System.Collections.Generic;

namespace AspClassic.Parser;

/// <summary>
/// A parse tree for variable declarations.
/// </summary>
public sealed class VariableListDeclaration : ModifiedDeclaration
{
	private readonly VariableDeclaratorCollection _VariableDeclarators;

	/// <summary>
	/// The variables being declared.
	/// </summary>
	public VariableDeclaratorCollection VariableDeclarators => _VariableDeclarators;

	/// <summary>
	/// Constructs a parse tree for variable declarations.
	/// </summary>
	/// <param name="attributes">The attributes on the declaration.</param>
	/// <param name="modifiers">The modifiers on the declaration.</param>
	/// <param name="variableDeclarators">The variables being declared.</param>
	/// <param name="span">The location of the parse tree.</param>
	/// <param name="comments">The comments for the parse tree.</param>
	public VariableListDeclaration(AttributeBlockCollection attributes, ModifierCollection modifiers, VariableDeclaratorCollection variableDeclarators, Span span, IList<Comment> comments)
		: base(TreeType.VariableListDeclaration, attributes, modifiers, span, comments)
	{
		if (variableDeclarators == null)
		{
			throw new ArgumentNullException("variableDeclarators");
		}
		SetParent(variableDeclarators);
		_VariableDeclarators = variableDeclarators;
	}

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