771 lines
31 KiB
C#
771 lines
31 KiB
C#
//
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// Author:
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// Jb Evain (jbevain@gmail.com)
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//
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// Copyright (c) 2008 - 2015 Jb Evain
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// Copyright (c) 2008 - 2011 Novell, Inc.
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//
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// Licensed under the MIT/X11 license.
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//
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using MonoFN.Cecil.Metadata;
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using System;
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namespace MonoFN.Cecil
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{
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internal static partial class Mixin
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{
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public const int TableCount = 58;
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public const int CodedIndexCount = 14;
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public static uint ReadCompressedUInt32(this byte[] data, ref int position)
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{
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uint integer;
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if ((data[position] & 0x80) == 0)
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{
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integer = data[position];
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position++;
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}
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else if ((data[position] & 0x40) == 0)
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{
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integer = (uint)(data[position] & ~0x80) << 8;
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integer |= data[position + 1];
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position += 2;
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}
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else
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{
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integer = (uint)(data[position] & ~0xc0) << 24;
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integer |= (uint)data[position + 1] << 16;
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integer |= (uint)data[position + 2] << 8;
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integer |= (uint)data[position + 3];
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position += 4;
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}
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return integer;
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}
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public static MetadataToken GetMetadataToken(this CodedIndex self, uint data)
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{
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uint rid;
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TokenType token_type;
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switch (self)
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{
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case CodedIndex.TypeDefOrRef:
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rid = data >> 2;
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switch (data & 3)
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{
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case 0:
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token_type = TokenType.TypeDef;
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goto ret;
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case 1:
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token_type = TokenType.TypeRef;
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goto ret;
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case 2:
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token_type = TokenType.TypeSpec;
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goto ret;
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default:
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goto exit;
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}
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case CodedIndex.HasConstant:
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rid = data >> 2;
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switch (data & 3)
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{
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case 0:
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token_type = TokenType.Field;
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goto ret;
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case 1:
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token_type = TokenType.Param;
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goto ret;
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case 2:
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token_type = TokenType.Property;
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goto ret;
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default:
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goto exit;
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}
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case CodedIndex.HasCustomAttribute:
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rid = data >> 5;
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switch (data & 31)
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{
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case 0:
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token_type = TokenType.Method;
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goto ret;
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case 1:
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token_type = TokenType.Field;
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goto ret;
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case 2:
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token_type = TokenType.TypeRef;
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goto ret;
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case 3:
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token_type = TokenType.TypeDef;
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goto ret;
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case 4:
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token_type = TokenType.Param;
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goto ret;
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case 5:
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token_type = TokenType.InterfaceImpl;
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goto ret;
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case 6:
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token_type = TokenType.MemberRef;
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goto ret;
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case 7:
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token_type = TokenType.Module;
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goto ret;
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case 8:
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token_type = TokenType.Permission;
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goto ret;
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case 9:
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token_type = TokenType.Property;
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goto ret;
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case 10:
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token_type = TokenType.Event;
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goto ret;
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case 11:
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token_type = TokenType.Signature;
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goto ret;
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case 12:
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token_type = TokenType.ModuleRef;
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goto ret;
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case 13:
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token_type = TokenType.TypeSpec;
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goto ret;
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case 14:
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token_type = TokenType.Assembly;
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goto ret;
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case 15:
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token_type = TokenType.AssemblyRef;
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goto ret;
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case 16:
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token_type = TokenType.File;
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goto ret;
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case 17:
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token_type = TokenType.ExportedType;
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goto ret;
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case 18:
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token_type = TokenType.ManifestResource;
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goto ret;
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case 19:
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token_type = TokenType.GenericParam;
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goto ret;
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case 20:
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token_type = TokenType.GenericParamConstraint;
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goto ret;
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case 21:
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token_type = TokenType.MethodSpec;
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goto ret;
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default:
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goto exit;
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}
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case CodedIndex.HasFieldMarshal:
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rid = data >> 1;
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switch (data & 1)
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{
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case 0:
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token_type = TokenType.Field;
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goto ret;
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case 1:
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token_type = TokenType.Param;
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goto ret;
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default:
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goto exit;
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}
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case CodedIndex.HasDeclSecurity:
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rid = data >> 2;
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switch (data & 3)
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{
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case 0:
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token_type = TokenType.TypeDef;
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goto ret;
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case 1:
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token_type = TokenType.Method;
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goto ret;
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case 2:
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token_type = TokenType.Assembly;
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goto ret;
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default:
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goto exit;
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}
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case CodedIndex.MemberRefParent:
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rid = data >> 3;
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switch (data & 7)
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{
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case 0:
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token_type = TokenType.TypeDef;
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goto ret;
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case 1:
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token_type = TokenType.TypeRef;
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goto ret;
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case 2:
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token_type = TokenType.ModuleRef;
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goto ret;
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case 3:
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token_type = TokenType.Method;
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goto ret;
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case 4:
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token_type = TokenType.TypeSpec;
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goto ret;
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default:
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goto exit;
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}
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case CodedIndex.HasSemantics:
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rid = data >> 1;
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switch (data & 1)
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{
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case 0:
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token_type = TokenType.Event;
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goto ret;
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case 1:
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token_type = TokenType.Property;
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goto ret;
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default:
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goto exit;
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}
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case CodedIndex.MethodDefOrRef:
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rid = data >> 1;
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switch (data & 1)
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{
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case 0:
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token_type = TokenType.Method;
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goto ret;
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case 1:
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token_type = TokenType.MemberRef;
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goto ret;
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default:
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goto exit;
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}
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case CodedIndex.MemberForwarded:
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rid = data >> 1;
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switch (data & 1)
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{
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case 0:
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token_type = TokenType.Field;
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goto ret;
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case 1:
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token_type = TokenType.Method;
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goto ret;
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default:
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goto exit;
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}
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case CodedIndex.Implementation:
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rid = data >> 2;
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switch (data & 3)
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{
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case 0:
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token_type = TokenType.File;
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goto ret;
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case 1:
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token_type = TokenType.AssemblyRef;
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goto ret;
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case 2:
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token_type = TokenType.ExportedType;
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goto ret;
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default:
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goto exit;
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}
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case CodedIndex.CustomAttributeType:
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rid = data >> 3;
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switch (data & 7)
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{
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case 2:
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token_type = TokenType.Method;
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goto ret;
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case 3:
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token_type = TokenType.MemberRef;
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goto ret;
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default:
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goto exit;
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}
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case CodedIndex.ResolutionScope:
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rid = data >> 2;
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switch (data & 3)
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{
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case 0:
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token_type = TokenType.Module;
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goto ret;
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case 1:
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token_type = TokenType.ModuleRef;
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goto ret;
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case 2:
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token_type = TokenType.AssemblyRef;
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goto ret;
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case 3:
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token_type = TokenType.TypeRef;
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goto ret;
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default:
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goto exit;
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}
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case CodedIndex.TypeOrMethodDef:
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rid = data >> 1;
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switch (data & 1)
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{
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case 0:
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token_type = TokenType.TypeDef;
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goto ret;
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case 1:
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token_type = TokenType.Method;
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goto ret;
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default:
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goto exit;
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}
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case CodedIndex.HasCustomDebugInformation:
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rid = data >> 5;
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switch (data & 31)
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{
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case 0:
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token_type = TokenType.Method;
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goto ret;
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case 1:
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token_type = TokenType.Field;
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goto ret;
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case 2:
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token_type = TokenType.TypeRef;
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goto ret;
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case 3:
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token_type = TokenType.TypeDef;
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goto ret;
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case 4:
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token_type = TokenType.Param;
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goto ret;
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case 5:
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token_type = TokenType.InterfaceImpl;
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goto ret;
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case 6:
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token_type = TokenType.MemberRef;
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goto ret;
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case 7:
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token_type = TokenType.Module;
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goto ret;
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case 8:
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token_type = TokenType.Permission;
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goto ret;
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case 9:
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token_type = TokenType.Property;
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goto ret;
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case 10:
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token_type = TokenType.Event;
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goto ret;
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case 11:
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token_type = TokenType.Signature;
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goto ret;
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case 12:
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token_type = TokenType.ModuleRef;
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goto ret;
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case 13:
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token_type = TokenType.TypeSpec;
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goto ret;
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case 14:
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token_type = TokenType.Assembly;
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goto ret;
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case 15:
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token_type = TokenType.AssemblyRef;
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goto ret;
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case 16:
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token_type = TokenType.File;
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goto ret;
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case 17:
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token_type = TokenType.ExportedType;
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goto ret;
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case 18:
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token_type = TokenType.ManifestResource;
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goto ret;
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case 19:
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token_type = TokenType.GenericParam;
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goto ret;
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case 20:
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token_type = TokenType.GenericParamConstraint;
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goto ret;
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case 21:
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token_type = TokenType.MethodSpec;
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goto ret;
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case 22:
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token_type = TokenType.Document;
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goto ret;
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case 23:
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token_type = TokenType.LocalScope;
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goto ret;
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case 24:
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token_type = TokenType.LocalVariable;
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goto ret;
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case 25:
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token_type = TokenType.LocalConstant;
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goto ret;
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case 26:
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token_type = TokenType.ImportScope;
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goto ret;
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default:
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goto exit;
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}
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default:
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goto exit;
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}
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ret:
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return new(token_type, rid);
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exit:
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return MetadataToken.Zero;
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}
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public static uint CompressMetadataToken(this CodedIndex self, MetadataToken token)
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{
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uint ret = 0;
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if (token.RID == 0)
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return ret;
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switch (self)
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{
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case CodedIndex.TypeDefOrRef:
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ret = token.RID << 2;
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switch (token.TokenType)
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{
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case TokenType.TypeDef:
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return ret | 0;
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case TokenType.TypeRef:
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return ret | 1;
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case TokenType.TypeSpec:
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return ret | 2;
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default:
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goto exit;
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}
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case CodedIndex.HasConstant:
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ret = token.RID << 2;
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switch (token.TokenType)
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{
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case TokenType.Field:
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return ret | 0;
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case TokenType.Param:
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return ret | 1;
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case TokenType.Property:
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return ret | 2;
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default:
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goto exit;
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}
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case CodedIndex.HasCustomAttribute:
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ret = token.RID << 5;
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switch (token.TokenType)
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{
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case TokenType.Method:
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return ret | 0;
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case TokenType.Field:
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return ret | 1;
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case TokenType.TypeRef:
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return ret | 2;
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case TokenType.TypeDef:
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return ret | 3;
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case TokenType.Param:
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return ret | 4;
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case TokenType.InterfaceImpl:
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return ret | 5;
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case TokenType.MemberRef:
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return ret | 6;
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case TokenType.Module:
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return ret | 7;
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case TokenType.Permission:
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return ret | 8;
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case TokenType.Property:
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return ret | 9;
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case TokenType.Event:
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return ret | 10;
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case TokenType.Signature:
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return ret | 11;
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case TokenType.ModuleRef:
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return ret | 12;
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case TokenType.TypeSpec:
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return ret | 13;
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case TokenType.Assembly:
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return ret | 14;
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case TokenType.AssemblyRef:
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return ret | 15;
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case TokenType.File:
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return ret | 16;
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case TokenType.ExportedType:
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return ret | 17;
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case TokenType.ManifestResource:
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return ret | 18;
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case TokenType.GenericParam:
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return ret | 19;
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case TokenType.GenericParamConstraint:
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return ret | 20;
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case TokenType.MethodSpec:
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return ret | 21;
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default:
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goto exit;
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}
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case CodedIndex.HasFieldMarshal:
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ret = token.RID << 1;
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switch (token.TokenType)
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{
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case TokenType.Field:
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return ret | 0;
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case TokenType.Param:
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return ret | 1;
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default:
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goto exit;
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}
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case CodedIndex.HasDeclSecurity:
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ret = token.RID << 2;
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switch (token.TokenType)
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{
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case TokenType.TypeDef:
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return ret | 0;
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case TokenType.Method:
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return ret | 1;
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case TokenType.Assembly:
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return ret | 2;
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default:
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goto exit;
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}
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case CodedIndex.MemberRefParent:
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ret = token.RID << 3;
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switch (token.TokenType)
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{
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case TokenType.TypeDef:
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return ret | 0;
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case TokenType.TypeRef:
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return ret | 1;
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case TokenType.ModuleRef:
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return ret | 2;
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case TokenType.Method:
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return ret | 3;
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case TokenType.TypeSpec:
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return ret | 4;
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default:
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goto exit;
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}
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case CodedIndex.HasSemantics:
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ret = token.RID << 1;
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switch (token.TokenType)
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{
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case TokenType.Event:
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return ret | 0;
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case TokenType.Property:
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return ret | 1;
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default:
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goto exit;
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}
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case CodedIndex.MethodDefOrRef:
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ret = token.RID << 1;
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switch (token.TokenType)
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{
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case TokenType.Method:
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return ret | 0;
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case TokenType.MemberRef:
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return ret | 1;
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default:
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goto exit;
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}
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case CodedIndex.MemberForwarded:
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ret = token.RID << 1;
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switch (token.TokenType)
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{
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case TokenType.Field:
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return ret | 0;
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case TokenType.Method:
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return ret | 1;
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default:
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goto exit;
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}
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case CodedIndex.Implementation:
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ret = token.RID << 2;
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switch (token.TokenType)
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{
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case TokenType.File:
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return ret | 0;
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case TokenType.AssemblyRef:
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return ret | 1;
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case TokenType.ExportedType:
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return ret | 2;
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default:
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goto exit;
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}
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case CodedIndex.CustomAttributeType:
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ret = token.RID << 3;
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switch (token.TokenType)
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{
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case TokenType.Method:
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return ret | 2;
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case TokenType.MemberRef:
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return ret | 3;
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default:
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goto exit;
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}
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case CodedIndex.ResolutionScope:
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ret = token.RID << 2;
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switch (token.TokenType)
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{
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case TokenType.Module:
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return ret | 0;
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case TokenType.ModuleRef:
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return ret | 1;
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case TokenType.AssemblyRef:
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return ret | 2;
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case TokenType.TypeRef:
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return ret | 3;
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default:
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goto exit;
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}
|
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case CodedIndex.TypeOrMethodDef:
|
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ret = token.RID << 1;
|
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switch (token.TokenType)
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{
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case TokenType.TypeDef:
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return ret | 0;
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case TokenType.Method:
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return ret | 1;
|
|
default:
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goto exit;
|
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}
|
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case CodedIndex.HasCustomDebugInformation:
|
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ret = token.RID << 5;
|
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switch (token.TokenType)
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{
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case TokenType.Method:
|
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return ret | 0;
|
|
case TokenType.Field:
|
|
return ret | 1;
|
|
case TokenType.TypeRef:
|
|
return ret | 2;
|
|
case TokenType.TypeDef:
|
|
return ret | 3;
|
|
case TokenType.Param:
|
|
return ret | 4;
|
|
case TokenType.InterfaceImpl:
|
|
return ret | 5;
|
|
case TokenType.MemberRef:
|
|
return ret | 6;
|
|
case TokenType.Module:
|
|
return ret | 7;
|
|
case TokenType.Permission:
|
|
return ret | 8;
|
|
case TokenType.Property:
|
|
return ret | 9;
|
|
case TokenType.Event:
|
|
return ret | 10;
|
|
case TokenType.Signature:
|
|
return ret | 11;
|
|
case TokenType.ModuleRef:
|
|
return ret | 12;
|
|
case TokenType.TypeSpec:
|
|
return ret | 13;
|
|
case TokenType.Assembly:
|
|
return ret | 14;
|
|
case TokenType.AssemblyRef:
|
|
return ret | 15;
|
|
case TokenType.File:
|
|
return ret | 16;
|
|
case TokenType.ExportedType:
|
|
return ret | 17;
|
|
case TokenType.ManifestResource:
|
|
return ret | 18;
|
|
case TokenType.GenericParam:
|
|
return ret | 19;
|
|
case TokenType.GenericParamConstraint:
|
|
return ret | 20;
|
|
case TokenType.MethodSpec:
|
|
return ret | 21;
|
|
case TokenType.Document:
|
|
return ret | 22;
|
|
case TokenType.LocalScope:
|
|
return ret | 23;
|
|
case TokenType.LocalVariable:
|
|
return ret | 24;
|
|
case TokenType.LocalConstant:
|
|
return ret | 25;
|
|
case TokenType.ImportScope:
|
|
return ret | 26;
|
|
default:
|
|
goto exit;
|
|
}
|
|
default:
|
|
goto exit;
|
|
}
|
|
exit:
|
|
throw new ArgumentException();
|
|
}
|
|
|
|
public static int GetSize(this CodedIndex self, Func<Table, int> counter)
|
|
{
|
|
int bits;
|
|
Table[] tables;
|
|
|
|
switch (self)
|
|
{
|
|
case CodedIndex.TypeDefOrRef:
|
|
bits = 2;
|
|
tables = new[] { Table.TypeDef, Table.TypeRef, Table.TypeSpec };
|
|
break;
|
|
case CodedIndex.HasConstant:
|
|
bits = 2;
|
|
tables = new[] { Table.Field, Table.Param, Table.Property };
|
|
break;
|
|
case CodedIndex.HasCustomAttribute:
|
|
bits = 5;
|
|
tables = new[]
|
|
{
|
|
Table.Method, Table.Field, Table.TypeRef, Table.TypeDef, Table.Param, Table.InterfaceImpl, Table.MemberRef,
|
|
Table.Module, Table.DeclSecurity, Table.Property, Table.Event, Table.StandAloneSig, Table.ModuleRef,
|
|
Table.TypeSpec, Table.Assembly, Table.AssemblyRef, Table.File, Table.ExportedType,
|
|
Table.ManifestResource, Table.GenericParam, Table.GenericParamConstraint, Table.MethodSpec
|
|
};
|
|
break;
|
|
case CodedIndex.HasFieldMarshal:
|
|
bits = 1;
|
|
tables = new[] { Table.Field, Table.Param };
|
|
break;
|
|
case CodedIndex.HasDeclSecurity:
|
|
bits = 2;
|
|
tables = new[] { Table.TypeDef, Table.Method, Table.Assembly };
|
|
break;
|
|
case CodedIndex.MemberRefParent:
|
|
bits = 3;
|
|
tables = new[] { Table.TypeDef, Table.TypeRef, Table.ModuleRef, Table.Method, Table.TypeSpec };
|
|
break;
|
|
case CodedIndex.HasSemantics:
|
|
bits = 1;
|
|
tables = new[] { Table.Event, Table.Property };
|
|
break;
|
|
case CodedIndex.MethodDefOrRef:
|
|
bits = 1;
|
|
tables = new[] { Table.Method, Table.MemberRef };
|
|
break;
|
|
case CodedIndex.MemberForwarded:
|
|
bits = 1;
|
|
tables = new[] { Table.Field, Table.Method };
|
|
break;
|
|
case CodedIndex.Implementation:
|
|
bits = 2;
|
|
tables = new[] { Table.File, Table.AssemblyRef, Table.ExportedType };
|
|
break;
|
|
case CodedIndex.CustomAttributeType:
|
|
bits = 3;
|
|
tables = new[] { Table.Method, Table.MemberRef };
|
|
break;
|
|
case CodedIndex.ResolutionScope:
|
|
bits = 2;
|
|
tables = new[] { Table.Module, Table.ModuleRef, Table.AssemblyRef, Table.TypeRef };
|
|
break;
|
|
case CodedIndex.TypeOrMethodDef:
|
|
bits = 1;
|
|
tables = new[] { Table.TypeDef, Table.Method };
|
|
break;
|
|
case CodedIndex.HasCustomDebugInformation:
|
|
bits = 5;
|
|
tables = new[]
|
|
{
|
|
Table.Method, Table.Field, Table.TypeRef, Table.TypeDef, Table.Param, Table.InterfaceImpl, Table.MemberRef,
|
|
Table.Module, Table.DeclSecurity, Table.Property, Table.Event, Table.StandAloneSig, Table.ModuleRef,
|
|
Table.TypeSpec, Table.Assembly, Table.AssemblyRef, Table.File, Table.ExportedType,
|
|
Table.ManifestResource, Table.GenericParam, Table.GenericParamConstraint, Table.MethodSpec,
|
|
Table.Document, Table.LocalScope, Table.LocalVariable, Table.LocalConstant, Table.ImportScope
|
|
};
|
|
break;
|
|
default:
|
|
throw new ArgumentException();
|
|
}
|
|
|
|
int max = 0;
|
|
|
|
for (int i = 0; i < tables.Length; i++)
|
|
{
|
|
max = Math.Max(counter(tables[i]), max);
|
|
}
|
|
|
|
return max < 1 << (16 - bits) ? 2 : 4;
|
|
}
|
|
}
|
|
} |