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// Jb Evain (jbevain@gmail.com)
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// Permission is hereby granted, free of charge, to any person obtaining
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// a copy of this software and associated documentation files (the
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// "Software"), to deal in the Software without restriction, including
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// without limitation the rights to use, copy, modify, merge, publish,
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// distribute, sublicense, and/or sell copies of the Software, and to
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// permit persons to whom the Software is furnished to do so, subject to
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// the following conditions:
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// The above copyright notice and this permission notice shall be
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// included in all copies or substantial portions of the Software.
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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namespace Mono.Cecil {
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using System.Collections;
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using Mono.Cecil.Metadata;
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class TableComparers {
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public sealed class TypeDef : IComparer {
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public static readonly TypeDef Instance = new TypeDef ();
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public int Compare (object x, object y)
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TypeDefinition a = x as TypeDefinition;
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TypeDefinition b = y as TypeDefinition;
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if (a == null || b == null)
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throw new ReflectionException ("TypeDefComparer can only compare TypeDefinition");
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if (a.Name == Constants.ModuleType && b.Name == Constants.ModuleType)
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else if (a.Name == Constants.ModuleType)
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else if (b.Name == Constants.ModuleType)
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return Comparer.Default.Compare (a.FullName, b.FullName);
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public class TypeRef : IComparer {
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public static readonly TypeRef Instance = new TypeRef ();
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public int Compare (object x, object y)
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TypeReference a = x as TypeReference;
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TypeReference b = y as TypeReference;
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if (a == null || b == null)
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throw new ReflectionException ("TypeRefComparer can only compare TypeReference");
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if (b.DeclaringType == a)
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else if (a.DeclaringType == b)
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return Comparer.Default.Compare (a.FullName, b.FullName);
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public class NestedClass : IComparer {
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public static readonly NestedClass Instance = new NestedClass ();
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public int Compare (object x, object y)
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NestedClassRow a = x as NestedClassRow;
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NestedClassRow b = y as NestedClassRow;
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return Comparer.Default.Compare (a.NestedClass, b.NestedClass);
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public class Constant : IComparer {
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public static readonly Constant Instance = new Constant ();
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public int Compare (object x, object y)
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ConstantRow a = x as ConstantRow;
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ConstantRow b = y as ConstantRow;
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return Comparer.Default.Compare (
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Utilities.CompressMetadataToken (CodedIndex.HasConstant, a.Parent),
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Utilities.CompressMetadataToken (CodedIndex.HasConstant, b.Parent));
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public class InterfaceImpl : IComparer {
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public static readonly InterfaceImpl Instance = new InterfaceImpl ();
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public int Compare (object x, object y)
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InterfaceImplRow a = x as InterfaceImplRow;
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InterfaceImplRow b = y as InterfaceImplRow;
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int klass = Comparer.Default.Compare (a.Class, b.Class);
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return Comparer.Default.Compare (
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Utilities.CompressMetadataToken (CodedIndex.TypeDefOrRef, a.Interface),
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Utilities.CompressMetadataToken (CodedIndex.TypeDefOrRef, b.Interface));
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public class MethodSem : IComparer {
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public static readonly MethodSem Instance = new MethodSem ();
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public int Compare (object x, object y)
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MethodSemanticsRow a = x as MethodSemanticsRow;
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MethodSemanticsRow b = y as MethodSemanticsRow;
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return Comparer.Default.Compare (
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Utilities.CompressMetadataToken (CodedIndex.HasSemantics, a.Association),
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Utilities.CompressMetadataToken (CodedIndex.HasSemantics, b.Association));
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public class CustomAttribute : IComparer {
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public static readonly CustomAttribute Instance = new CustomAttribute ();
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public int Compare (object x, object y)
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CustomAttributeRow a = x as CustomAttributeRow;
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CustomAttributeRow b = y as CustomAttributeRow;
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return Comparer.Default.Compare (
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Utilities.CompressMetadataToken (CodedIndex.HasCustomAttribute, a.Parent),
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Utilities.CompressMetadataToken (CodedIndex.HasCustomAttribute, b.Parent));
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public class SecurityDeclaration : IComparer {
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public static readonly SecurityDeclaration Instance = new SecurityDeclaration ();
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public int Compare (object x, object y)
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DeclSecurityRow a = x as DeclSecurityRow;
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DeclSecurityRow b = y as DeclSecurityRow;
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return Comparer.Default.Compare (
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Utilities.CompressMetadataToken (CodedIndex.HasDeclSecurity, a.Parent),
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Utilities.CompressMetadataToken (CodedIndex.HasDeclSecurity, b.Parent));
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public class Override : IComparer {
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public static readonly Override Instance = new Override ();
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public int Compare (object x, object y)
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MethodImplRow a = x as MethodImplRow;
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MethodImplRow b = y as MethodImplRow;
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return Comparer.Default.Compare (a.Class, b.Class);
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public class PInvoke : IComparer {
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public static readonly PInvoke Instance = new PInvoke ();
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public int Compare (object x, object y)
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ImplMapRow a = x as ImplMapRow;
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ImplMapRow b = y as ImplMapRow;
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return Comparer.Default.Compare (a.MemberForwarded.RID, b.MemberForwarded.RID);
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public class FieldRVA : IComparer {
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public static readonly FieldRVA Instance = new FieldRVA ();
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public int Compare (object x, object y)
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FieldRVARow a = x as FieldRVARow;
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FieldRVARow b = y as FieldRVARow;
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return Comparer.Default.Compare (a.Field, b.Field);
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public class FieldLayout : IComparer {
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public static readonly FieldLayout Instance = new FieldLayout ();
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public int Compare (object x, object y)
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FieldLayoutRow a = x as FieldLayoutRow;
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FieldLayoutRow b = y as FieldLayoutRow;
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return Comparer.Default.Compare (a.Field, b.Field);
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public class FieldMarshal : IComparer {
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public static readonly FieldMarshal Instance = new FieldMarshal ();
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public int Compare (object x, object y)
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FieldMarshalRow a = x as FieldMarshalRow;
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FieldMarshalRow b = y as FieldMarshalRow;
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return Comparer.Default.Compare (
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Utilities.CompressMetadataToken (CodedIndex.HasFieldMarshal, a.Parent),
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Utilities.CompressMetadataToken (CodedIndex.HasFieldMarshal, b.Parent));
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public class TypeLayout : IComparer {
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public static readonly TypeLayout Instance = new TypeLayout ();
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public int Compare (object x, object y)
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ClassLayoutRow a = x as ClassLayoutRow;
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ClassLayoutRow b = y as ClassLayoutRow;
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return Comparer.Default.Compare (a.Parent, b.Parent);
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public class GenericParam : IComparer {
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public static readonly GenericParam Instance = new GenericParam ();
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public int Compare (object x, object y)
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GenericParameter a = x as GenericParameter;
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GenericParameter b = y as GenericParameter;
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int token = Comparer.Default.Compare (
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Utilities.CompressMetadataToken (CodedIndex.TypeOrMethodDef, a.Owner.MetadataToken),
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Utilities.CompressMetadataToken (CodedIndex.TypeOrMethodDef, b.Owner.MetadataToken));
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return Comparer.Default.Compare (a.Position, b.Position);