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//-----------------------------------------------------------------------
// <copyright file="Util.cs" company="Andrew Arnott">
// Copyright (c) Andrew Arnott. All rights reserved.
// </copyright>
//-----------------------------------------------------------------------
namespace DotNetOAuth {
using System;
using System.Collections.Generic;
using System.Globalization;
using System.Reflection;
/// <summary>
/// A grab-bag utility class.
/// </summary>
internal static class Util {
/// <summary>
/// Gets a human-readable description of the library name and version, including
/// whether the build is an official or private one.
/// </summary>
public static string LibraryVersion {
get {
string assemblyFullName = Assembly.GetExecutingAssembly().FullName;
bool official = assemblyFullName.Contains("PublicKeyToken=2780ccd10d57b246");
// We use InvariantCulture since this is used for logging.
return string.Format(CultureInfo.InvariantCulture, "{0} ({1})", assemblyFullName, official ? "official" : "private");
}
}
/// <summary>
/// Enumerates through the individual set bits in a flag enum.
/// </summary>
/// <param name="flags">The flags enum value.</param>
/// <returns>An enumeration of just the <i>set</i> bits in the flags enum.</returns>
internal static IEnumerable<long> GetIndividualFlags(Enum flags) {
long flagsLong = Convert.ToInt64(flags);
for (int i = 0; i < sizeof(long) * 8; i++) { // long is the type behind the largest enum
// Select an individual application from the scopes.
long individualFlagPosition = (long)Math.Pow(2, i);
long individualFlag = flagsLong & individualFlagPosition;
if (individualFlag == individualFlagPosition) {
yield return individualFlag;
}
}
}
}
}
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