using System;
using System.Collections.Generic;

namespace AspClassic.Parser;

/// <summary>
/// A parse tree for a New array expression.
/// </summary>
public sealed class NewAggregateExpression : Expression
{
	private readonly ArrayTypeName _Target;

	private readonly AggregateInitializer _Initializer;

	/// <summary>
	/// The target array type to create.
	/// </summary>
	public ArrayTypeName Target => _Target;

	/// <summary>
	/// The initializer for the array.
	/// </summary>
	public AggregateInitializer Initializer => _Initializer;

	/// <summary>
	/// The constructor for a New array expression parse tree.
	/// </summary>
	/// <param name="target">The target array type to create.</param>
	/// <param name="initializer">The initializer for the array.</param>
	/// <param name="span">The location of the parse tree.</param>
	public NewAggregateExpression(ArrayTypeName target, AggregateInitializer initializer, Span span)
		: base(TreeType.NewAggregateExpression, span)
	{
		if (target == null)
		{
			throw new ArgumentNullException("target");
		}
		if (initializer == null)
		{
			throw new ArgumentNullException("initializer");
		}
		SetParent(target);
		SetParent(initializer);
		_Target = target;
		_Initializer = initializer;
	}

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