ILSpy/ICSharpCode.Decompiler/IL/Instructions/UnaryInstruction.cs

#nullable enable
// Copyright (c) 2014 Daniel Grunwald
// 
// Permission is hereby granted, free of charge, to any person obtaining a copy of this
// software and associated documentation files (the "Software"), to deal in the Software
// without restriction, including without limitation the rights to use, copy, modify, merge,
// publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons
// to whom the Software is furnished to do so, subject to the following conditions:
// 
// The above copyright notice and this permission notice shall be included in all copies or
// substantial portions of the Software.
// 
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
// INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
// PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
// FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.

using System.Diagnostics;

namespace ICSharpCode.Decompiler.IL
{
	partial class BitNot : ILiftableInstruction
	{
		public BitNot(ILInstruction arg) : base(OpCode.BitNot, arg)
		{
			this.UnderlyingResultType = arg.ResultType;
		}

		public BitNot(ILInstruction arg, bool isLifted, StackType stackType) : base(OpCode.BitNot, arg)
		{
			this.IsLifted = isLifted;
			this.UnderlyingResultType = stackType;
		}

		public bool IsLifted { get; }
		public StackType UnderlyingResultType { get; }

		public override StackType ResultType {
			get {
				return Argument.ResultType;
			}
		}

		internal override void CheckInvariant(ILPhase phase)
		{
			base.CheckInvariant(phase);
			Debug.Assert(IsLifted == (ResultType == StackType.O));
			Debug.Assert(IsLifted || ResultType == UnderlyingResultType);
		}

		public override void WriteTo(ITextOutput output, ILAstWritingOptions options)
		{
			WriteILRange(output, options);
			output.Write(OpCode);
			if (IsLifted)
			{
				output.Write(".lifted");
			}
			output.Write('(');
			this.Argument.WriteTo(output, options);
			output.Write(')');
		}
	}
}