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/* ****************************************************************************
*
* Copyright (c) Microsoft Corporation.
*
* This source code is subject to terms and conditions of the Microsoft Public License. A
* copy of the license can be found in the License.html file at the root of this distribution. If
* you cannot locate the Microsoft Public License, please send an email to
* dlr@microsoft.com. By using this source code in any fashion, you are agreeing to be bound
* by the terms of the Microsoft Public License.
*
* You must not remove this notice, or any other, from this software.
*
*
* ***************************************************************************/
using System;
using System.Runtime.CompilerServices;
namespace Microsoft.Scripting.Utils {
public static class EnumUtils {
public static object BitwiseOr(object self, object other) {
if (self is Enum && other is Enum) {
Type selfType = self.GetType();
Type otherType = other.GetType();
if (selfType == otherType) {
Type underType = Enum.GetUnderlyingType(selfType);
if (underType == typeof(int)) {
return Enum.ToObject(selfType, (int)self | (int)other);
} else if (underType == typeof(long)) {
return Enum.ToObject(selfType, (long)self | (long)other);
} else if (underType == typeof(short)) {
return Enum.ToObject(selfType, (short)self | (short)other);
} else if (underType == typeof(byte)) {
return Enum.ToObject(selfType, (byte)self | (byte)other);
} else if (underType == typeof(sbyte)) {
return Enum.ToObject(selfType, (sbyte)self | (sbyte)other);
} else if (underType == typeof(uint)) {
return Enum.ToObject(selfType, (uint)self | (uint)other);
} else if (underType == typeof(ulong)) {
return Enum.ToObject(selfType, (ulong)self | (ulong)other);
} else if (underType == typeof(ushort)) {
return Enum.ToObject(selfType, (ushort)self | (ushort)other);
} else {
throw Assert.Unreachable;
}
}
}
return null;
}
public static object BitwiseAnd(object self, object other) {
if (self is Enum && other is Enum) {
Type selfType = self.GetType();
Type otherType = other.GetType();
if (selfType == otherType) {
Type underType = Enum.GetUnderlyingType(selfType);
if (underType == typeof(int)) {
return Enum.ToObject(selfType, (int)self & (int)other);
} else if (underType == typeof(long)) {
return Enum.ToObject(selfType, (long)self & (long)other);
} else if (underType == typeof(short)) {
return Enum.ToObject(selfType, (short)self & (short)other);
} else if (underType == typeof(byte)) {
return Enum.ToObject(selfType, (byte)self & (byte)other);
} else if (underType == typeof(sbyte)) {
return Enum.ToObject(selfType, (sbyte)self & (sbyte)other);
} else if (underType == typeof(uint)) {
return Enum.ToObject(selfType, (uint)self & (uint)other);
} else if (underType == typeof(ulong)) {
return Enum.ToObject(selfType, (ulong)self & (ulong)other);
} else if (underType == typeof(ushort)) {
return Enum.ToObject(selfType, (ushort)self & (ushort)other);
} else {
throw Assert.Unreachable;
}
}
}
return null;
}
public static object ExclusiveOr(object self, object other) {
if (self is Enum && other is Enum) {
Type selfType = self.GetType();
Type otherType = other.GetType();
if (selfType == otherType) {
Type underType = Enum.GetUnderlyingType(selfType);
if (underType == typeof(int)) {
return Enum.ToObject(selfType, (int)self ^ (int)other);
} else if (underType == typeof(long)) {
return Enum.ToObject(selfType, (long)self ^ (long)other);
} else if (underType == typeof(short)) {
return Enum.ToObject(selfType, (short)self ^ (short)other);
} else if (underType == typeof(byte)) {
return Enum.ToObject(selfType, (byte)self ^ (byte)other);
} else if (underType == typeof(sbyte)) {
return Enum.ToObject(selfType, (sbyte)self ^ (sbyte)other);
} else if (underType == typeof(uint)) {
return Enum.ToObject(selfType, (uint)self ^ (uint)other);
} else if (underType == typeof(ulong)) {
return Enum.ToObject(selfType, (ulong)self ^ (ulong)other);
} else if (underType == typeof(ushort)) {
return Enum.ToObject(selfType, (ushort)self ^ (ushort)other);
} else {
throw Assert.Unreachable;
}
}
}
return null;
}
public static object OnesComplement(object self) {
if (self is Enum) {
Type selfType = self.GetType();
Type underType = Enum.GetUnderlyingType(selfType);
if (underType == typeof(int)) {
return Enum.ToObject(selfType, ~(int)self);
} else if (underType == typeof(long)) {
return Enum.ToObject(selfType, ~(long)self);
} else if (underType == typeof(short)) {
return Enum.ToObject(selfType, ~(short)self);
} else if (underType == typeof(byte)) {
return Enum.ToObject(selfType, ~(byte)self);
} else if (underType == typeof(sbyte)) {
return Enum.ToObject(selfType, ~(sbyte)self);
} else if (underType == typeof(uint)) {
return Enum.ToObject(selfType, ~(uint)self);
} else if (underType == typeof(ulong)) {
return Enum.ToObject(selfType, ~(ulong)self);
} else if (underType == typeof(ushort)) {
return Enum.ToObject(selfType, ~(ushort)self);
} else {
throw Assert.Unreachable;
}
}
return null;
}
}
}
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