HandyControl/src/Shared/Microsoft.Windows.Shell/Standard/HRESULT.cs

using System;
using System.ComponentModel;
using System.Diagnostics.CodeAnalysis;
using System.Globalization;
using System.Reflection;
using System.Runtime.InteropServices;

namespace Standard
{
	[StructLayout(LayoutKind.Explicit)]
	internal struct HRESULT
	{
		public HRESULT(uint i)
		{
			this._value = i;
		}

		public static HRESULT Make(bool severe, Facility facility, int code)
		{
			return new HRESULT((uint)((severe ? (Facility)(-2147483648) : Facility.Null) | (Facility) ((int)facility << 16) | (Facility)code));
		}

		public Facility Facility
		{
			get
			{
				return HRESULT.GetFacility((int)this._value);
			}
		}

		public static Facility GetFacility(int errorCode)
		{
			return (Facility)(errorCode >> 16 & 8191);
		}

		public int Code
		{
			get
			{
				return HRESULT.GetCode((int)this._value);
			}
		}

		public static int GetCode(int error)
		{
			return error & 65535;
		}

		public override string ToString()
		{
			foreach (FieldInfo fieldInfo in typeof(HRESULT).GetFields(BindingFlags.Static | BindingFlags.Public))
			{
				if (fieldInfo.FieldType == typeof(HRESULT))
				{
					HRESULT hrLeft = (HRESULT)fieldInfo.GetValue(null);
					if (hrLeft == this)
					{
						return fieldInfo.Name;
					}
				}
			}
			if (this.Facility == Facility.Win32)
			{
				foreach (FieldInfo fieldInfo2 in typeof(Win32Error).GetFields(BindingFlags.Static | BindingFlags.Public))
				{
					if (fieldInfo2.FieldType == typeof(Win32Error))
					{
						Win32Error error = (Win32Error)fieldInfo2.GetValue(null);
						if ((HRESULT)error == this)
						{
							return "HRESULT_FROM_WIN32(" + fieldInfo2.Name + ")";
						}
					}
				}
			}
			return string.Format(CultureInfo.InvariantCulture, "0x{0:X8}", new object[]
			{
				this._value
			});
		}

		public override bool Equals(object obj)
		{
			bool result;
			try
			{
				result = (((HRESULT)obj)._value == this._value);
			}
			catch (InvalidCastException)
			{
				result = false;
			}
			return result;
		}

		public override int GetHashCode()
		{
			return this._value.GetHashCode();
		}

		public static bool operator ==(HRESULT hrLeft, HRESULT hrRight)
		{
			return hrLeft._value == hrRight._value;
		}

		public static bool operator !=(HRESULT hrLeft, HRESULT hrRight)
		{
			return !(hrLeft == hrRight);
		}

		public bool Succeeded
		{
			get
			{
				return this._value >= 0u;
			}
		}

		public bool Failed
		{
			get
			{
				return this._value < 0u;
			}
		}

		public void ThrowIfFailed()
		{
			this.ThrowIfFailed(null);
		}

		[SuppressMessage("Microsoft.Usage", "CA2201:DoNotRaiseReservedExceptionTypes", Justification = "Only recreating Exceptions that were already raised.")]
		[SuppressMessage("Microsoft.Security", "CA2122:DoNotIndirectlyExposeMethodsWithLinkDemands")]
		public void ThrowIfFailed(string message)
		{
			if (this.Failed)
			{
				if (string.IsNullOrEmpty(message))
				{
					message = this.ToString();
				}
				Exception ex = Marshal.GetExceptionForHR((int)this._value, new IntPtr(-1));
				if (ex.GetType() == typeof(COMException))
				{
					Facility facility = this.Facility;
					if (facility == Facility.Win32)
					{
						ex = new Win32Exception(this.Code, message);
					}
					else
					{
						ex = new COMException(message, (int)this._value);
					}
				}
				else
				{
					ConstructorInfo constructor = ex.GetType().GetConstructor(new Type[]
					{
						typeof(string)
					});
					if (null != constructor)
					{
						ex = (constructor.Invoke(new object[]
						{
							message
						}) as Exception);
					}
				}
				throw ex;
			}
		}

		public static void ThrowLastError()
		{
			((HRESULT)Win32Error.GetLastError()).ThrowIfFailed();
		}

		[FieldOffset(0)]
		private readonly uint _value;

		[SuppressMessage("Microsoft.Performance", "CA1823:AvoidUnusedPrivateFields")]
		public static readonly HRESULT S_OK = new HRESULT(0u);

		[SuppressMessage("Microsoft.Performance", "CA1823:AvoidUnusedPrivateFields")]
		public static readonly HRESULT S_FALSE = new HRESULT(1u);

		[SuppressMessage("Microsoft.Performance", "CA1823:AvoidUnusedPrivateFields")]
		public static readonly HRESULT E_PENDING = new HRESULT(2147483658u);

		[SuppressMessage("Microsoft.Performance", "CA1823:AvoidUnusedPrivateFields")]
		public static readonly HRESULT E_NOTIMPL = new HRESULT(2147500033u);

		[SuppressMessage("Microsoft.Performance", "CA1823:AvoidUnusedPrivateFields")]
		public static readonly HRESULT E_NOINTERFACE = new HRESULT(2147500034u);

		[SuppressMessage("Microsoft.Performance", "CA1823:AvoidUnusedPrivateFields")]
		public static readonly HRESULT E_POINTER = new HRESULT(2147500035u);

		[SuppressMessage("Microsoft.Performance", "CA1823:AvoidUnusedPrivateFields")]
		public static readonly HRESULT E_ABORT = new HRESULT(2147500036u);

		[SuppressMessage("Microsoft.Performance", "CA1823:AvoidUnusedPrivateFields")]
		public static readonly HRESULT E_FAIL = new HRESULT(2147500037u);

		[SuppressMessage("Microsoft.Performance", "CA1823:AvoidUnusedPrivateFields")]
		public static readonly HRESULT E_UNEXPECTED = new HRESULT(2147549183u);

		[SuppressMessage("Microsoft.Performance", "CA1823:AvoidUnusedPrivateFields")]
		public static readonly HRESULT STG_E_INVALIDFUNCTION = new HRESULT(2147680257u);

		[SuppressMessage("Microsoft.Performance", "CA1823:AvoidUnusedPrivateFields")]
		public static readonly HRESULT REGDB_E_CLASSNOTREG = new HRESULT(2147746132u);

		[SuppressMessage("Microsoft.Performance", "CA1823:AvoidUnusedPrivateFields")]
		public static readonly HRESULT DESTS_E_NO_MATCHING_ASSOC_HANDLER = new HRESULT(2147749635u);

		[SuppressMessage("Microsoft.Performance", "CA1823:AvoidUnusedPrivateFields")]
		public static readonly HRESULT DESTS_E_NORECDOCS = new HRESULT(2147749636u);

		[SuppressMessage("Microsoft.Performance", "CA1823:AvoidUnusedPrivateFields")]
		public static readonly HRESULT DESTS_E_NOTALLCLEARED = new HRESULT(2147749637u);

		[SuppressMessage("Microsoft.Performance", "CA1823:AvoidUnusedPrivateFields")]
		public static readonly HRESULT E_ACCESSDENIED = new HRESULT(2147942405u);

		[SuppressMessage("Microsoft.Performance", "CA1823:AvoidUnusedPrivateFields")]
		public static readonly HRESULT E_OUTOFMEMORY = new HRESULT(2147942414u);

		[SuppressMessage("Microsoft.Performance", "CA1823:AvoidUnusedPrivateFields")]
		public static readonly HRESULT E_INVALIDARG = new HRESULT(2147942487u);

		[SuppressMessage("Microsoft.Performance", "CA1823:AvoidUnusedPrivateFields")]
		public static readonly HRESULT INTSAFE_E_ARITHMETIC_OVERFLOW = new HRESULT(2147942934u);

		[SuppressMessage("Microsoft.Performance", "CA1823:AvoidUnusedPrivateFields")]
		public static readonly HRESULT COR_E_OBJECTDISPOSED = new HRESULT(2148734498u);

		[SuppressMessage("Microsoft.Performance", "CA1823:AvoidUnusedPrivateFields")]
		public static readonly HRESULT WC_E_GREATERTHAN = new HRESULT(3222072867u);

		[SuppressMessage("Microsoft.Performance", "CA1823:AvoidUnusedPrivateFields")]
		public static readonly HRESULT WC_E_SYNTAX = new HRESULT(3222072877u);
	}
}