// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.

using System.Collections.Generic;

#nullable disable

namespace Microsoft.Build.Evaluation
{
    /// <summary>
    /// This interface represents an object which can act as a source of items for the Expander.
    /// </summary>
    /// <typeparam name="T">The type of items provided by the implementation.</typeparam>
    internal interface IItemProvider<T> where T : IItem
    {
        /// <summary>
        /// Returns a list of items with the specified item type.
        ///
        /// If there are no items of this type, returns an empty list.
        /// </summary>
        /// <param name="itemType">The item type of items to return.</param>
        /// <returns>A list of matching items.</returns>
        ICollection<T> GetItems(string itemType);
    }
}