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

using Microsoft.AspNetCore.Components.Rendering;

namespace Microsoft.AspNetCore.Components;

internal interface ICascadingValueSupplier
{
    bool IsFixed { get; }

    bool CanSupplyValue(in CascadingParameterInfo parameterInfo);

    object? GetCurrentValue(object? key, in CascadingParameterInfo parameterInfo);

    void Subscribe(ComponentState subscriber, in CascadingParameterInfo parameterInfo);

    void Unsubscribe(ComponentState subscriber, in CascadingParameterInfo parameterInfo);
}