// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.

using System.Runtime.CompilerServices;

namespace System.Globalization
{
	partial class GlobalizationMode
	{
		static bool GetGlobalizationInvariantMode ()
		{
			bool invariantEnabled = GetInvariantSwitchValue ();
			if (invariantEnabled)
				return true;

			LoadICU ();
			return false;
		}

		// Keep this in a separate method to avoid loading the native lib in invariant mode
		[MethodImplAttribute (MethodImplOptions.NoInlining)]
		static void LoadICU ()
		{
			int res = Interop.Globalization.LoadICU ();
			if (res == 0) {
				string message = "Couldn't find a valid ICU package installed on the system. " +
					"Set the configuration flag System.Globalization.Invariant to true if you want to run with no globalization support.";
				Environment.FailFast (message);
			}
		}
	}
}