// 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.Reflection.Metadata;

namespace ICSharpCode.Decompiler.IL
{
	public enum PrimitiveType : byte
	{
		None,
		I1 = PrimitiveTypeCode.SByte,
		I2 = PrimitiveTypeCode.Int16,
		I4 = PrimitiveTypeCode.Int32,
		I8 = PrimitiveTypeCode.Int64,
		R4 = PrimitiveTypeCode.Single,
		R8 = PrimitiveTypeCode.Double,
		U1 = PrimitiveTypeCode.Byte,
		U2 = PrimitiveTypeCode.UInt16,
		U4 = PrimitiveTypeCode.UInt32,
		U8 = PrimitiveTypeCode.UInt64,
		I = PrimitiveTypeCode.IntPtr,
		U = PrimitiveTypeCode.UIntPtr,
		/// <summary>Managed reference</summary>
		Ref = 16,
		/// <summary>Floating point type of unspecified size:
		/// usually 80 bits on x86 (when the runtime uses x87 instructions);
		/// but only 64-bit on x64.
		/// This only occurs for "conv.r.un" instructions. The C# compiler usually follows those
		/// with a "conv.r4" or "conv.r8" instruction to indicate the desired float type, so
		/// we only use this as conversion target type and don't bother tracking it as its own stack type:
		/// basically everything treats R identical to R8, except for the (conv.r.un + conv.r[48] => conv.r[48].un)
		/// combining logic which should not combine (conv.r.un + conv.r8 + conv.r4) into a single conv.r4.un.
		/// </summary>
		R = 254,
		Unknown = 255
	}
}
