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Building .NET Coverage Tool

, 25 Aug 2009 MIT
This article is a walkthrough for building a .NET coverage tool
Coverage.NET_demo.zip
TestApp
TestApp.exe
TestApp.pdb
Tool
Coverage.Counter.dll
Coverage.exe
Mono.Cecil.dll
Mono.Tools.Pdb2Mdb.dll
Coverage.NET_src.zip
Coverage
Common
Instrument
Properties
Report
Coverage.Counter
Properties
Mono.Cecil
src
AUTHORS
ChangeLog
CodeGen
cecil-gen-attributes.rb
cecil-gen-sources.rb
cecil-gen-tests.rb
cecil-gen-types.rb
cecil-gen.rb
cecil-mig.rb
cecil-update-rev
templates
configure
default.build
Makefile
mono-cecil.pc.in
Mono.Cecil
Mono.Cecil.Binary
Mono.Cecil.Cil
Mono.Cecil.dll.sources
Mono.Cecil.Metadata
Mono.Cecil.Signatures
Mono.Xml
ChangeLog
NEWS
README
standalone.make
TODO
Mono.Tools.Pdb2Mdb
Properties
src
ChangeLog
LICENSE
Makefile
pdb2mdb.exe.sources
//
// TableComparers.cs
//
// Author:
//   Jb Evain (jbevain@gmail.com)
//
// (C) 2005 Jb Evain
//
// 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.
//

namespace Mono.Cecil {

	using System;
	using System.Collections;

	using Mono.Cecil.Metadata;

	sealed class TableComparers {

		public sealed class TypeDef : IComparer {

			public static readonly TypeDef Instance = new TypeDef ();

			public int Compare (object x, object y)
			{
				TypeDefinition a = x as TypeDefinition;
				TypeDefinition b = y as TypeDefinition;

				if (a == null || b == null)
					throw new ReflectionException ("TypeDefComparer can only compare TypeDefinition");

				if (a.Name == Constants.ModuleType && b.Name == Constants.ModuleType)
					return 0;
				else if (a.Name == Constants.ModuleType)
					return -1;
				else if (b.Name == Constants.ModuleType)
					return 1;

				return Comparer.Default.Compare (a.FullName, b.FullName);
			}
		}

		public sealed class TypeRef : IComparer {

			public static readonly TypeRef Instance = new TypeRef ();

			public int Compare (object x, object y)
			{
				TypeReference a = x as TypeReference;
				TypeReference b = y as TypeReference;

				if (a == null || b == null)
					throw new ReflectionException ("TypeRefComparer can only compare TypeReference");

				if (b.DeclaringType == a)
					return -1;
				else if (a.DeclaringType == b)
					return 1;

				return Comparer.Default.Compare (a.FullName, b.FullName);
			}
		}

		public sealed class NestedClass : IComparer {

			public static readonly NestedClass Instance = new NestedClass ();

			public int Compare (object x, object y)
			{
				NestedClassRow a = x as NestedClassRow;
				NestedClassRow b = y as NestedClassRow;

				return Comparer.Default.Compare (a.NestedClass, b.NestedClass);
			}
		}

		public sealed class Constant : IComparer {

			public static readonly Constant Instance = new Constant ();

			public int Compare (object x, object y)
			{
				ConstantRow a = x as ConstantRow;
				ConstantRow b = y as ConstantRow;

				return Comparer.Default.Compare (
					Utilities.CompressMetadataToken (CodedIndex.HasConstant, a.Parent),
					Utilities.CompressMetadataToken (CodedIndex.HasConstant, b.Parent));
			}

		}

		public sealed class InterfaceImpl : IComparer {

			public static readonly InterfaceImpl Instance = new InterfaceImpl ();

			public int Compare (object x, object y)
			{
				InterfaceImplRow a = x as InterfaceImplRow;
				InterfaceImplRow b = y as InterfaceImplRow;

				int klass = Comparer.Default.Compare (a.Class, b.Class);

				if (klass == 0)
					return Comparer.Default.Compare (
						Utilities.CompressMetadataToken (CodedIndex.TypeDefOrRef, a.Interface),
						Utilities.CompressMetadataToken (CodedIndex.TypeDefOrRef, b.Interface));

				return klass;
			}
		}

		public sealed class MethodSem : IComparer {

			public static readonly MethodSem Instance = new MethodSem ();

			public int Compare (object x, object y)
			{
				MethodSemanticsRow a = x as MethodSemanticsRow;
				MethodSemanticsRow b = y as MethodSemanticsRow;

				return Comparer.Default.Compare (
					Utilities.CompressMetadataToken (CodedIndex.HasSemantics, a.Association),
					Utilities.CompressMetadataToken (CodedIndex.HasSemantics, b.Association));
			}
		}

		public sealed class CustomAttribute : IComparer {

			public static readonly CustomAttribute Instance = new CustomAttribute ();

			public int Compare (object x, object y)
			{
				CustomAttributeRow a = x as CustomAttributeRow;
				CustomAttributeRow b = y as CustomAttributeRow;

				return Comparer.Default.Compare (
					Utilities.CompressMetadataToken (CodedIndex.HasCustomAttribute, a.Parent),
					Utilities.CompressMetadataToken (CodedIndex.HasCustomAttribute, b.Parent));
			}
		}

		public sealed class SecurityDeclaration : IComparer {

			public static readonly SecurityDeclaration Instance = new SecurityDeclaration ();

			public int Compare (object x, object y)
			{
				DeclSecurityRow a = x as DeclSecurityRow;
				DeclSecurityRow b = y as DeclSecurityRow;

				return Comparer.Default.Compare (
					Utilities.CompressMetadataToken (CodedIndex.HasDeclSecurity, a.Parent),
					Utilities.CompressMetadataToken (CodedIndex.HasDeclSecurity, b.Parent));
			}
		}

		public sealed class Override : IComparer {

			public static readonly Override Instance = new Override ();

			public int Compare (object x, object y)
			{
				MethodImplRow a = x as MethodImplRow;
				MethodImplRow b = y as MethodImplRow;

				return Comparer.Default.Compare (a.Class, b.Class);
			}
		}

		public sealed class PInvoke : IComparer {

			public static readonly PInvoke Instance = new PInvoke ();

			public int Compare (object x, object y)
			{
				ImplMapRow a = x as ImplMapRow;
				ImplMapRow b = y as ImplMapRow;

				return Comparer.Default.Compare (a.MemberForwarded.RID, b.MemberForwarded.RID);
			}
		}

		public sealed class FieldRVA : IComparer {

			public static readonly FieldRVA Instance = new FieldRVA ();

			public int Compare (object x, object y)
			{
				FieldRVARow a = x as FieldRVARow;
				FieldRVARow b = y as FieldRVARow;

				return Comparer.Default.Compare (a.Field, b.Field);
			}
		}

		public sealed class FieldLayout : IComparer {

			public static readonly FieldLayout Instance = new FieldLayout ();

			public int Compare (object x, object y)
			{
				FieldLayoutRow a = x as FieldLayoutRow;
				FieldLayoutRow b = y as FieldLayoutRow;

				return Comparer.Default.Compare (a.Field, b.Field);
			}
		}

		public sealed class FieldMarshal : IComparer {

			public static readonly FieldMarshal Instance = new FieldMarshal ();

			public int Compare (object x, object y)
			{
				FieldMarshalRow a = x as FieldMarshalRow;
				FieldMarshalRow b = y as FieldMarshalRow;

				return Comparer.Default.Compare (
					Utilities.CompressMetadataToken (CodedIndex.HasFieldMarshal, a.Parent),
					Utilities.CompressMetadataToken (CodedIndex.HasFieldMarshal, b.Parent));
			}
		}

		public sealed class TypeLayout : IComparer {

			public static readonly TypeLayout Instance = new TypeLayout ();

			public int Compare (object x, object y)
			{
				ClassLayoutRow a = x as ClassLayoutRow;
				ClassLayoutRow b = y as ClassLayoutRow;

				return Comparer.Default.Compare (a.Parent, b.Parent);
			}
		}

		public sealed class GenericParam : IComparer {

			public static readonly GenericParam Instance = new GenericParam ();

			public int Compare (object x, object y)
			{
				GenericParameter a = x as GenericParameter;
				GenericParameter b = y as GenericParameter;

				int token = Comparer.Default.Compare (
					Utilities.CompressMetadataToken (CodedIndex.TypeOrMethodDef, a.Owner.MetadataToken),
					Utilities.CompressMetadataToken (CodedIndex.TypeOrMethodDef, b.Owner.MetadataToken));

				if (token == 0)
					return Comparer.Default.Compare (a.Position, b.Position);

				return token;
			}
		}
	}
}

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This article, along with any associated source code and files, is licensed under The MIT License

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About the Author

Sergiy Sakharov
Software Developer (Senior)
United Kingdom United Kingdom
No Biography provided

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