ILSpy/ILSpy/Metadata/CorTables/ParamTableTreeNode.cs

// Copyright (c) 2011 AlphaSierraPapa for the SharpDevelop Team
// 
// 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
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using System.Collections.Generic;
using System.Reflection;
using System.Reflection.Metadata;
using System.Reflection.Metadata.Ecma335;

using ICSharpCode.Decompiler.Metadata;

namespace ICSharpCode.ILSpy.Metadata
{
	internal class ParamTableTreeNode : MetadataTableTreeNode<ParamTableTreeNode.ParamEntry>
	{
		public ParamTableTreeNode(MetadataFile metadataFile)
			: base(TableIndex.Param, metadataFile)
		{
		}

		protected override IReadOnlyList<ParamEntry> LoadTable()
		{
			var list = new List<ParamEntry>();
			for (int row = 1; row <= metadataFile.Metadata.GetTableRowCount(TableIndex.Param); row++)
			{
				list.Add(new ParamEntry(metadataFile, MetadataTokens.ParameterHandle(row)));
			}
			return list;
		}

		internal struct ParamEntry
		{
			readonly MetadataFile metadataFile;
			readonly ParameterHandle handle;
			readonly Parameter param;

			public int RID => MetadataTokens.GetRowNumber(handle);

			public int Token => MetadataTokens.GetToken(handle);

			public int Offset => metadataFile.MetadataOffset
				+ metadataFile.Metadata.GetTableMetadataOffset(TableIndex.Param)
				+ metadataFile.Metadata.GetTableRowSize(TableIndex.Param) * (RID - 1);

			[ColumnInfo("X8", Kind = ColumnKind.Other)]
			public ParameterAttributes Attributes => param.Attributes;

			public object AttributesTooltip => new FlagsTooltip {
				FlagGroup.CreateMultipleChoiceGroup(typeof(ParameterAttributes), selectedValue: (int)param.Attributes, includeAll: false)
			};

			public string Name => metadataFile.Metadata.GetString(param.Name);

			public string NameTooltip => $"{MetadataTokens.GetHeapOffset(param.Name):X} \"{Name}\"";

			public int Sequence => param.SequenceNumber;

			public ParamEntry(MetadataFile metadataFile, ParameterHandle handle)
			{
				this.metadataFile = metadataFile;
				this.handle = handle;
				this.param = metadataFile.Metadata.GetParameter(handle);
			}
		}
	}
}