+++ /dev/null
-/*
- Copyright (C) 2009-2012 Jeroen Frijters
-
- This software is provided 'as-is', without any express or implied
- warranty. In no event will the authors be held liable for any damages
- arising from the use of this software.
-
- Permission is granted to anyone to use this software for any purpose,
- including commercial applications, and to alter it and redistribute it
- freely, subject to the following restrictions:
-
- 1. The origin of this software must not be misrepresented; you must not
- claim that you wrote the original software. If you use this software
- in a product, an acknowledgment in the product documentation would be
- appreciated but is not required.
- 2. Altered source versions must be plainly marked as such, and must not be
- misrepresented as being the original software.
- 3. This notice may not be removed or altered from any source distribution.
-
- Jeroen Frijters
- jeroen@frijters.net
-
-*/
-using System;
-using System.IO;
-using System.Text;
-using System.Collections.Generic;
-using IKVM.Reflection.Metadata;
-
-namespace IKVM.Reflection.Reader
-{
- sealed class StreamHeader
- {
- internal uint Offset;
- internal uint Size;
- internal string Name;
-
- internal void Read(BinaryReader br)
- {
- Offset = br.ReadUInt32();
- Size = br.ReadUInt32();
- byte[] buf = new byte[32];
- byte b;
- int len = 0;
- while ((b = br.ReadByte()) != 0)
- {
- buf[len++] = b;
- }
- Name = Encoding.UTF8.GetString(buf, 0, len); ;
- int padding = -1 + ((len + 4) & ~3) - len;
- br.BaseStream.Seek(padding, SeekOrigin.Current);
- }
- }
-
- sealed class ModuleReader : Module
- {
- internal readonly Stream stream;
- private readonly string location;
- private Assembly assembly;
- private readonly PEReader peFile = new PEReader();
- private readonly CliHeader cliHeader = new CliHeader();
- private string imageRuntimeVersion;
- private int metadataStreamVersion;
- private byte[] stringHeap;
- private byte[] blobHeap;
- private byte[] userStringHeap;
- private byte[] guidHeap;
- private TypeDefImpl[] typeDefs;
- private TypeDefImpl moduleType;
- private Assembly[] assemblyRefs;
- private Type[] typeRefs;
- private Type[] typeSpecs;
- private FieldInfo[] fields;
- private MethodBase[] methods;
- private MemberInfo[] memberRefs;
- private Dictionary<int, string> strings = new Dictionary<int, string>();
- private Dictionary<TypeName, Type> types = new Dictionary<TypeName, Type>();
- private Dictionary<TypeName, LazyForwardedType> forwardedTypes = new Dictionary<TypeName, LazyForwardedType>();
-
- private sealed class LazyForwardedType
- {
- private readonly int index;
- private Type type;
-
- internal LazyForwardedType(int index)
- {
- this.index = index;
- }
-
- internal Type GetType(ModuleReader module)
- {
- return type ?? (type = module.ResolveExportedType(index));
- }
- }
-
- internal ModuleReader(AssemblyReader assembly, Universe universe, Stream stream, string location)
- : base(universe)
- {
- this.stream = stream;
- this.location = location;
- Read();
- if (assembly == null && AssemblyTable.records.Length != 0)
- {
- assembly = new AssemblyReader(location, this);
- }
- this.assembly = assembly;
- }
-
- private void Read()
- {
- BinaryReader br = new BinaryReader(stream);
- peFile.Read(br);
- stream.Seek(peFile.RvaToFileOffset(peFile.GetComDescriptorVirtualAddress()), SeekOrigin.Begin);
- cliHeader.Read(br);
- stream.Seek(peFile.RvaToFileOffset(cliHeader.MetaData.VirtualAddress), SeekOrigin.Begin);
- foreach (StreamHeader sh in ReadStreamHeaders(br, out imageRuntimeVersion))
- {
- switch (sh.Name)
- {
- case "#Strings":
- stringHeap = ReadHeap(stream, sh);
- break;
- case "#Blob":
- blobHeap = ReadHeap(stream, sh);
- break;
- case "#US":
- userStringHeap = ReadHeap(stream, sh);
- break;
- case "#GUID":
- guidHeap = ReadHeap(stream, sh);
- break;
- case "#~":
- case "#-":
- stream.Seek(peFile.RvaToFileOffset(cliHeader.MetaData.VirtualAddress + sh.Offset), SeekOrigin.Begin);
- ReadTables(br);
- break;
- default:
- // we ignore unknown streams, because the CLR does so too
- // (and some obfuscators add bogus streams)
- break;
- }
- }
- }
-
- internal void SetAssembly(Assembly assembly)
- {
- this.assembly = assembly;
- }
-
- private static StreamHeader[] ReadStreamHeaders(BinaryReader br, out string Version)
- {
- uint Signature = br.ReadUInt32();
- if (Signature != 0x424A5342)
- {
- throw new BadImageFormatException("Invalid metadata signature");
- }
- /*ushort MajorVersion =*/ br.ReadUInt16();
- /*ushort MinorVersion =*/ br.ReadUInt16();
- /*uint Reserved =*/ br.ReadUInt32();
- uint Length = br.ReadUInt32();
- byte[] buf = br.ReadBytes((int)Length);
- Version = Encoding.UTF8.GetString(buf).TrimEnd('\u0000');
- /*ushort Flags =*/ br.ReadUInt16();
- ushort Streams = br.ReadUInt16();
- StreamHeader[] streamHeaders = new StreamHeader[Streams];
- for (int i = 0; i < streamHeaders.Length; i++)
- {
- streamHeaders[i] = new StreamHeader();
- streamHeaders[i].Read(br);
- }
- return streamHeaders;
- }
-
- private void ReadTables(BinaryReader br)
- {
- Table[] tables = GetTables();
- /*uint Reserved0 =*/ br.ReadUInt32();
- byte MajorVersion = br.ReadByte();
- byte MinorVersion = br.ReadByte();
- metadataStreamVersion = MajorVersion << 16 | MinorVersion;
- byte HeapSizes = br.ReadByte();
- /*byte Reserved7 =*/ br.ReadByte();
- ulong Valid = br.ReadUInt64();
- ulong Sorted = br.ReadUInt64();
- for (int i = 0; i < 64; i++)
- {
- if ((Valid & (1UL << i)) != 0)
- {
- tables[i].Sorted = (Sorted & (1UL << i)) != 0;
- tables[i].RowCount = br.ReadInt32();
- }
- }
- MetadataReader mr = new MetadataReader(this, br.BaseStream, HeapSizes);
- for (int i = 0; i < 64; i++)
- {
- if ((Valid & (1UL << i)) != 0)
- {
- tables[i].Read(mr);
- }
- }
- if (ParamPtr.RowCount != 0)
- {
- throw new NotImplementedException("ParamPtr table support has not yet been implemented.");
- }
- }
-
- private byte[] ReadHeap(Stream stream, StreamHeader sh)
- {
- byte[] buf = new byte[sh.Size];
- stream.Seek(peFile.RvaToFileOffset(cliHeader.MetaData.VirtualAddress + sh.Offset), SeekOrigin.Begin);
- for (int pos = 0; pos < buf.Length; )
- {
- int read = stream.Read(buf, pos, buf.Length - pos);
- if (read == 0)
- {
- throw new BadImageFormatException();
- }
- pos += read;
- }
- return buf;
- }
-
- internal void SeekRVA(int rva)
- {
- stream.Seek(peFile.RvaToFileOffset((uint)rva), SeekOrigin.Begin);
- }
-
- internal override void GetTypesImpl(List<Type> list)
- {
- PopulateTypeDef();
- foreach (TypeDefImpl type in typeDefs)
- {
- if (type != moduleType)
- {
- list.Add(type);
- }
- }
- }
-
- private void PopulateTypeDef()
- {
- if (typeDefs == null)
- {
- typeDefs = new TypeDefImpl[TypeDef.records.Length];
- for (int i = 0; i < typeDefs.Length; i++)
- {
- TypeDefImpl type = new TypeDefImpl(this, i);
- typeDefs[i] = type;
- if (type.IsModulePseudoType)
- {
- moduleType = type;
- }
- else if (!type.IsNestedByFlags)
- {
- types.Add(new TypeName(type.__Namespace, type.__Name), type);
- }
- }
- // add forwarded types to forwardedTypes dictionary (because Module.GetType(string) should return them)
- for (int i = 0; i < ExportedType.records.Length; i++)
- {
- int implementation = ExportedType.records[i].Implementation;
- if (implementation >> 24 == AssemblyRefTable.Index)
- {
- TypeName typeName = GetTypeName(ExportedType.records[i].TypeNamespace, ExportedType.records[i].TypeName);
- forwardedTypes.Add(typeName, new LazyForwardedType(i));
- }
- }
- }
- }
-
- internal override string GetString(int index)
- {
- if (index == 0)
- {
- return null;
- }
- string str;
- if (!strings.TryGetValue(index, out str))
- {
- int len = 0;
- while (stringHeap[index + len] != 0)
- {
- len++;
- }
- str = Encoding.UTF8.GetString(stringHeap, index, len);
- strings.Add(index, str);
- }
- return str;
- }
-
- private static int ReadCompressedUInt(byte[] buffer, ref int offset)
- {
- byte b1 = buffer[offset++];
- if (b1 <= 0x7F)
- {
- return b1;
- }
- else if ((b1 & 0xC0) == 0x80)
- {
- byte b2 = buffer[offset++];
- return ((b1 & 0x3F) << 8) | b2;
- }
- else
- {
- byte b2 = buffer[offset++];
- byte b3 = buffer[offset++];
- byte b4 = buffer[offset++];
- return ((b1 & 0x3F) << 24) + (b2 << 16) + (b3 << 8) + b4;
- }
- }
-
- internal byte[] GetBlobCopy(int blobIndex)
- {
- int len = ReadCompressedUInt(blobHeap, ref blobIndex);
- byte[] buf = new byte[len];
- Buffer.BlockCopy(blobHeap, blobIndex, buf, 0, len);
- return buf;
- }
-
- internal override ByteReader GetBlob(int blobIndex)
- {
- return ByteReader.FromBlob(blobHeap, blobIndex);
- }
-
- public override string ResolveString(int metadataToken)
- {
- string str;
- if (!strings.TryGetValue(metadataToken, out str))
- {
- if ((metadataToken >> 24) != 0x70)
- {
- throw TokenOutOfRangeException(metadataToken);
- }
- int index = metadataToken & 0xFFFFFF;
- int len = ReadCompressedUInt(userStringHeap, ref index) & ~1;
- StringBuilder sb = new StringBuilder(len / 2);
- for (int i = 0; i < len; i += 2)
- {
- char ch = (char)(userStringHeap[index + i] | userStringHeap[index + i + 1] << 8);
- sb.Append(ch);
- }
- str = sb.ToString();
- strings.Add(metadataToken, str);
- }
- return str;
- }
-
- internal override Type ResolveType(int metadataToken, IGenericContext context)
- {
- int index = (metadataToken & 0xFFFFFF) - 1;
- if (index < 0)
- {
- throw TokenOutOfRangeException(metadataToken);
- }
- else if ((metadataToken >> 24) == TypeDefTable.Index && index < TypeDef.RowCount)
- {
- PopulateTypeDef();
- return typeDefs[index];
- }
- else if ((metadataToken >> 24) == TypeRefTable.Index && index < TypeRef.RowCount)
- {
- if (typeRefs == null)
- {
- typeRefs = new Type[TypeRef.records.Length];
- }
- if (typeRefs[index] == null)
- {
- int scope = TypeRef.records[index].ResolutionScope;
- switch (scope >> 24)
- {
- case AssemblyRefTable.Index:
- {
- Assembly assembly = ResolveAssemblyRef((scope & 0xFFFFFF) - 1);
- TypeName typeName = GetTypeName(TypeRef.records[index].TypeNameSpace, TypeRef.records[index].TypeName);
- typeRefs[index] = assembly.ResolveType(typeName);
- break;
- }
- case TypeRefTable.Index:
- {
- Type outer = ResolveType(scope, null);
- TypeName typeName = GetTypeName(TypeRef.records[index].TypeNameSpace, TypeRef.records[index].TypeName);
- typeRefs[index] = outer.ResolveNestedType(typeName);
- break;
- }
- case ModuleTable.Index:
- case ModuleRefTable.Index:
- {
- Module module;
- if (scope >> 24 == ModuleTable.Index)
- {
- if (scope == 0 || scope == 1)
- {
- module = this;
- }
- else
- {
- throw new NotImplementedException("self reference scope?");
- }
- }
- else
- {
- module = ResolveModuleRef(ModuleRef.records[(scope & 0xFFFFFF) - 1]);
- }
- TypeName typeName = GetTypeName(TypeRef.records[index].TypeNameSpace, TypeRef.records[index].TypeName);
- typeRefs[index] = module.FindType(typeName) ?? module.universe.GetMissingTypeOrThrow(module, null, typeName);
- break;
- }
- default:
- throw new NotImplementedException("ResolutionScope = " + scope.ToString("X"));
- }
- }
- return typeRefs[index];
- }
- else if ((metadataToken >> 24) == TypeSpecTable.Index && index < TypeSpec.RowCount)
- {
- if (typeSpecs == null)
- {
- typeSpecs = new Type[TypeSpec.records.Length];
- }
- Type type = typeSpecs[index];
- if (type == null)
- {
- TrackingGenericContext tc = context == null ? null : new TrackingGenericContext(context);
- type = Signature.ReadTypeSpec(this, ByteReader.FromBlob(blobHeap, TypeSpec.records[index]), tc);
- if (tc == null || !tc.IsUsed)
- {
- typeSpecs[index] = type;
- }
- }
- return type;
- }
- else
- {
- throw TokenOutOfRangeException(metadataToken);
- }
- }
-
- private Module ResolveModuleRef(int moduleNameIndex)
- {
- string moduleName = GetString(moduleNameIndex);
- Module module = assembly.GetModule(moduleName);
- if (module == null)
- {
- throw new FileNotFoundException(moduleName);
- }
- return module;
- }
-
- private sealed class TrackingGenericContext : IGenericContext
- {
- private readonly IGenericContext context;
- private bool used;
-
- internal TrackingGenericContext(IGenericContext context)
- {
- this.context = context;
- }
-
- internal bool IsUsed
- {
- get { return used; }
- }
-
- public Type GetGenericTypeArgument(int index)
- {
- used = true;
- return context.GetGenericTypeArgument(index);
- }
-
- public Type GetGenericMethodArgument(int index)
- {
- used = true;
- return context.GetGenericMethodArgument(index);
- }
- }
-
- private TypeName GetTypeName(int typeNamespace, int typeName)
- {
- return new TypeName(GetString(typeNamespace), GetString(typeName));
- }
-
- internal Assembly ResolveAssemblyRef(int index)
- {
- if (assemblyRefs == null)
- {
- assemblyRefs = new Assembly[AssemblyRef.RowCount];
- }
- if (assemblyRefs[index] == null)
- {
- assemblyRefs[index] = ResolveAssemblyRefImpl(ref AssemblyRef.records[index]);
- }
- return assemblyRefs[index];
- }
-
- private Assembly ResolveAssemblyRefImpl(ref AssemblyRefTable.Record rec)
- {
- const int PublicKey = 0x0001;
- string name = String.Format("{0}, Version={1}.{2}.{3}.{4}, Culture={5}, {6}={7}",
- GetString(rec.Name),
- rec.MajorVersion,
- rec.MinorVersion,
- rec.BuildNumber,
- rec.RevisionNumber,
- rec.Culture == 0 ? "neutral" : GetString(rec.Culture),
- (rec.Flags & PublicKey) == 0 ? "PublicKeyToken" : "PublicKey",
- PublicKeyOrTokenToString(rec.PublicKeyOrToken));
- return universe.Load(name, this.Assembly, true);
- }
-
- private string PublicKeyOrTokenToString(int publicKeyOrToken)
- {
- if (publicKeyOrToken == 0)
- {
- return "null";
- }
- ByteReader br = GetBlob(publicKeyOrToken);
- if (br.Length == 0)
- {
- return "null";
- }
- StringBuilder sb = new StringBuilder(br.Length * 2);
- while (br.Length > 0)
- {
- sb.AppendFormat("{0:x2}", br.ReadByte());
- }
- return sb.ToString();
- }
-
- public override Guid ModuleVersionId
- {
- get
- {
- byte[] buf = new byte[16];
- Buffer.BlockCopy(guidHeap, 16 * (ModuleTable.records[0].Mvid - 1), buf, 0, 16);
- return new Guid(buf);
- }
- }
-
- public override string FullyQualifiedName
- {
- get { return location ?? "<Unknown>"; }
- }
-
- public override string Name
- {
- get { return location == null ? "<Unknown>" : System.IO.Path.GetFileName(location); }
- }
-
- public override Assembly Assembly
- {
- get { return assembly; }
- }
-
- internal override Type FindType(TypeName typeName)
- {
- PopulateTypeDef();
- Type type;
- if (!types.TryGetValue(typeName, out type))
- {
- LazyForwardedType fw;
- if (forwardedTypes.TryGetValue(typeName, out fw))
- {
- return fw.GetType(this);
- }
- }
- return type;
- }
-
- internal override Type FindTypeIgnoreCase(TypeName lowerCaseName)
- {
- PopulateTypeDef();
- foreach (Type type in types.Values)
- {
- if (new TypeName(type.__Namespace, type.__Name).ToLowerInvariant() == lowerCaseName)
- {
- return type;
- }
- }
- foreach (TypeName name in forwardedTypes.Keys)
- {
- if (name.ToLowerInvariant() == lowerCaseName)
- {
- return forwardedTypes[name].GetType(this);
- }
- }
- return null;
- }
-
- private Exception TokenOutOfRangeException(int metadataToken)
- {
- return new ArgumentOutOfRangeException("metadataToken", String.Format("Token 0x{0:x8} is not valid in the scope of module {1}.", metadataToken, this.Name));
- }
-
- public override MemberInfo ResolveMember(int metadataToken, Type[] genericTypeArguments, Type[] genericMethodArguments)
- {
- switch (metadataToken >> 24)
- {
- case FieldTable.Index:
- return ResolveField(metadataToken, genericTypeArguments, genericMethodArguments);
- case MemberRefTable.Index:
- int index = (metadataToken & 0xFFFFFF) - 1;
- if (index < 0 || index >= MemberRef.RowCount)
- {
- goto default;
- }
- return GetMemberRef(index, genericTypeArguments, genericMethodArguments);
- case MethodDefTable.Index:
- case MethodSpecTable.Index:
- return ResolveMethod(metadataToken, genericTypeArguments, genericMethodArguments);
- case TypeRefTable.Index:
- case TypeDefTable.Index:
- case TypeSpecTable.Index:
- return ResolveType(metadataToken, genericTypeArguments, genericMethodArguments);
- default:
- throw TokenOutOfRangeException(metadataToken);
- }
- }
-
- internal FieldInfo GetFieldAt(TypeDefImpl owner, int index)
- {
- if (fields == null)
- {
- fields = new FieldInfo[Field.records.Length];
- }
- if (fields[index] == null)
- {
- fields[index] = new FieldDefImpl(this, owner ?? FindFieldOwner(index), index);
- }
- return fields[index];
- }
-
- public override FieldInfo ResolveField(int metadataToken, Type[] genericTypeArguments, Type[] genericMethodArguments)
- {
- int index = (metadataToken & 0xFFFFFF) - 1;
- if (index < 0)
- {
- throw TokenOutOfRangeException(metadataToken);
- }
- else if ((metadataToken >> 24) == FieldTable.Index && index < Field.RowCount)
- {
- return GetFieldAt(null, index);
- }
- else if ((metadataToken >> 24) == MemberRefTable.Index && index < MemberRef.RowCount)
- {
- FieldInfo field = GetMemberRef(index, genericTypeArguments, genericMethodArguments) as FieldInfo;
- if (field != null)
- {
- return field;
- }
- throw new ArgumentException(String.Format("Token 0x{0:x8} is not a valid FieldInfo token in the scope of module {1}.", metadataToken, this.Name), "metadataToken");
- }
- else
- {
- throw TokenOutOfRangeException(metadataToken);
- }
- }
-
- private TypeDefImpl FindFieldOwner(int fieldIndex)
- {
- // TODO use binary search?
- for (int i = 0; i < TypeDef.records.Length; i++)
- {
- int field = TypeDef.records[i].FieldList - 1;
- int end = TypeDef.records.Length > i + 1 ? TypeDef.records[i + 1].FieldList - 1 : Field.records.Length;
- if (field <= fieldIndex && fieldIndex < end)
- {
- PopulateTypeDef();
- return typeDefs[i];
- }
- }
- throw new InvalidOperationException();
- }
-
- internal MethodBase GetMethodAt(TypeDefImpl owner, int index)
- {
- if (methods == null)
- {
- methods = new MethodBase[MethodDef.records.Length];
- }
- if (methods[index] == null)
- {
- MethodDefImpl method = new MethodDefImpl(this, owner ?? FindMethodOwner(index), index);
- methods[index] = method.IsConstructor ? new ConstructorInfoImpl(method) : (MethodBase)method;
- }
- return methods[index];
- }
-
- public override MethodBase ResolveMethod(int metadataToken, Type[] genericTypeArguments, Type[] genericMethodArguments)
- {
- int index = (metadataToken & 0xFFFFFF) - 1;
- if (index < 0)
- {
- throw TokenOutOfRangeException(metadataToken);
- }
- else if ((metadataToken >> 24) == MethodDefTable.Index && index < MethodDef.RowCount)
- {
- return GetMethodAt(null, index);
- }
- else if ((metadataToken >> 24) == MemberRefTable.Index && index < MemberRef.RowCount)
- {
- MethodBase method = GetMemberRef(index, genericTypeArguments, genericMethodArguments) as MethodBase;
- if (method != null)
- {
- return method;
- }
- throw new ArgumentException(String.Format("Token 0x{0:x8} is not a valid MethodBase token in the scope of module {1}.", metadataToken, this.Name), "metadataToken");
- }
- else if ((metadataToken >> 24) == MethodSpecTable.Index && index < MethodSpec.RowCount)
- {
- MethodInfo method = (MethodInfo)ResolveMethod(MethodSpec.records[index].Method, genericTypeArguments, genericMethodArguments);
- ByteReader instantiation = ByteReader.FromBlob(blobHeap, MethodSpec.records[index].Instantiation);
- return method.MakeGenericMethod(Signature.ReadMethodSpec(this, instantiation, new GenericContext(genericTypeArguments, genericMethodArguments)));
- }
- else
- {
- throw TokenOutOfRangeException(metadataToken);
- }
- }
-
- public override Type[] __ResolveOptionalParameterTypes(int metadataToken, Type[] genericTypeArguments, Type[] genericMethodArguments, out CustomModifiers[] customModifiers)
- {
- int index = (metadataToken & 0xFFFFFF) - 1;
- if (index < 0)
- {
- throw TokenOutOfRangeException(metadataToken);
- }
- else if ((metadataToken >> 24) == MemberRefTable.Index && index < MemberRef.RowCount)
- {
- int sig = MemberRef.records[index].Signature;
- return Signature.ReadOptionalParameterTypes(this, GetBlob(sig), new GenericContext(genericTypeArguments, genericMethodArguments), out customModifiers);
- }
- else if ((metadataToken >> 24) == MethodDefTable.Index && index < MethodDef.RowCount)
- {
- // for convenience, we support passing a MethodDef token as well, because in some places
- // it makes sense to have a vararg method that is referred to by its methoddef (e.g. ldftn).
- // Note that MethodSpec doesn't make sense, because generic methods cannot be vararg.
- customModifiers = Empty<CustomModifiers>.Array;
- return Type.EmptyTypes;
- }
- else
- {
- throw TokenOutOfRangeException(metadataToken);
- }
- }
-
- public override string ScopeName
- {
- get { return GetString(ModuleTable.records[0].Name); }
- }
-
- private TypeDefImpl FindMethodOwner(int methodIndex)
- {
- // TODO use binary search?
- for (int i = 0; i < TypeDef.records.Length; i++)
- {
- int method = TypeDef.records[i].MethodList - 1;
- int end = TypeDef.records.Length > i + 1 ? TypeDef.records[i + 1].MethodList - 1 : MethodDef.records.Length;
- if (method <= methodIndex && methodIndex < end)
- {
- PopulateTypeDef();
- return typeDefs[i];
- }
- }
- throw new InvalidOperationException();
- }
-
- private MemberInfo GetMemberRef(int index, Type[] genericTypeArguments, Type[] genericMethodArguments)
- {
- if (memberRefs == null)
- {
- memberRefs = new MemberInfo[MemberRef.records.Length];
- }
- if (memberRefs[index] == null)
- {
- int owner = MemberRef.records[index].Class;
- int sig = MemberRef.records[index].Signature;
- string name = GetString(MemberRef.records[index].Name);
- switch (owner >> 24)
- {
- case MethodDefTable.Index:
- return GetMethodAt(null, (owner & 0xFFFFFF) - 1);
- case ModuleRefTable.Index:
- memberRefs[index] = ResolveTypeMemberRef(ResolveModuleType(owner), name, ByteReader.FromBlob(blobHeap, sig));
- break;
- case TypeDefTable.Index:
- case TypeRefTable.Index:
- memberRefs[index] = ResolveTypeMemberRef(ResolveType(owner), name, ByteReader.FromBlob(blobHeap, sig));
- break;
- case TypeSpecTable.Index:
- {
- Type type = ResolveType(owner, genericTypeArguments, genericMethodArguments);
- if (type.IsArray)
- {
- MethodSignature methodSig = MethodSignature.ReadSig(this, ByteReader.FromBlob(blobHeap, sig), new GenericContext(genericTypeArguments, genericMethodArguments));
- return type.FindMethod(name, methodSig)
- ?? universe.GetMissingMethodOrThrow(type, name, methodSig);
- }
- else if (type.IsConstructedGenericType)
- {
- MemberInfo member = ResolveTypeMemberRef(type.GetGenericTypeDefinition(), name, ByteReader.FromBlob(blobHeap, sig));
- MethodBase mb = member as MethodBase;
- if (mb != null)
- {
- member = mb.BindTypeParameters(type);
- }
- FieldInfo fi = member as FieldInfo;
- if (fi != null)
- {
- member = fi.BindTypeParameters(type);
- }
- return member;
- }
- else
- {
- return ResolveTypeMemberRef(type, name, ByteReader.FromBlob(blobHeap, sig));
- }
- }
- default:
- throw new BadImageFormatException();
- }
- }
- return memberRefs[index];
- }
-
- private Type ResolveModuleType(int token)
- {
- int index = (token & 0xFFFFFF) - 1;
- string name = GetString(ModuleRef.records[index]);
- Module module = assembly.GetModule(name);
- if (module == null || module.IsResource())
- {
- throw new BadImageFormatException();
- }
- return module.GetModuleType();
- }
-
- private MemberInfo ResolveTypeMemberRef(Type type, string name, ByteReader sig)
- {
- if (sig.PeekByte() == Signature.FIELD)
- {
- Type org = type;
- FieldSignature fieldSig = FieldSignature.ReadSig(this, sig, type);
- FieldInfo field = type.FindField(name, fieldSig);
- if (field == null && universe.MissingMemberResolution)
- {
- return universe.GetMissingFieldOrThrow(type, name, fieldSig);
- }
- while (field == null && (type = type.BaseType) != null)
- {
- field = type.FindField(name, fieldSig);
- }
- if (field != null)
- {
- return field;
- }
- throw new MissingFieldException(org.ToString(), name);
- }
- else
- {
- Type org = type;
- MethodSignature methodSig = MethodSignature.ReadSig(this, sig, type);
- MethodBase method = type.FindMethod(name, methodSig);
- if (method == null && universe.MissingMemberResolution)
- {
- return universe.GetMissingMethodOrThrow(type, name, methodSig);
- }
- while (method == null && (type = type.BaseType) != null)
- {
- method = type.FindMethod(name, methodSig);
- }
- if (method != null)
- {
- return method;
- }
- throw new MissingMethodException(org.ToString(), name);
- }
- }
-
- internal ByteReader GetStandAloneSig(int index)
- {
- return ByteReader.FromBlob(blobHeap, StandAloneSig.records[index]);
- }
-
- public override byte[] ResolveSignature(int metadataToken)
- {
- int index = (metadataToken & 0xFFFFFF) - 1;
- if ((metadataToken >> 24) == StandAloneSigTable.Index && index >= 0 && index < StandAloneSig.RowCount)
- {
- ByteReader br = GetStandAloneSig(index);
- return br.ReadBytes(br.Length);
- }
- else
- {
- throw TokenOutOfRangeException(metadataToken);
- }
- }
-
- public override __StandAloneMethodSig __ResolveStandAloneMethodSig(int metadataToken, Type[] genericTypeArguments, Type[] genericMethodArguments)
- {
- int index = (metadataToken & 0xFFFFFF) - 1;
- if ((metadataToken >> 24) == StandAloneSigTable.Index && index >= 0 && index < StandAloneSig.RowCount)
- {
- return MethodSignature.ReadStandAloneMethodSig(this, GetStandAloneSig(index), new GenericContext(genericTypeArguments, genericMethodArguments));
- }
- else
- {
- throw TokenOutOfRangeException(metadataToken);
- }
- }
-
- internal MethodInfo GetEntryPoint()
- {
- if (cliHeader.EntryPointToken != 0 && (cliHeader.Flags & CliHeader.COMIMAGE_FLAGS_NATIVE_ENTRYPOINT) == 0)
- {
- return (MethodInfo)ResolveMethod((int)cliHeader.EntryPointToken);
- }
- return null;
- }
-
- internal string[] GetManifestResourceNames()
- {
- string[] names = new string[ManifestResource.records.Length];
- for (int i = 0; i < ManifestResource.records.Length; i++)
- {
- names[i] = GetString(ManifestResource.records[i].Name);
- }
- return names;
- }
-
- internal ManifestResourceInfo GetManifestResourceInfo(string resourceName)
- {
- for (int i = 0; i < ManifestResource.records.Length; i++)
- {
- if (resourceName == GetString(ManifestResource.records[i].Name))
- {
- ManifestResourceInfo info = new ManifestResourceInfo(this, i);
- Assembly asm = info.ReferencedAssembly;
- if (asm != null && !asm.__IsMissing && asm.GetManifestResourceInfo(resourceName) == null)
- {
- return null;
- }
- return info;
- }
- }
- return null;
- }
-
- internal Stream GetManifestResourceStream(string resourceName)
- {
- for (int i = 0; i < ManifestResource.records.Length; i++)
- {
- if (resourceName == GetString(ManifestResource.records[i].Name))
- {
- if (ManifestResource.records[i].Implementation != 0x26000000)
- {
- ManifestResourceInfo info = new ManifestResourceInfo(this, i);
- switch (ManifestResource.records[i].Implementation >> 24)
- {
- case FileTable.Index:
- string fileName = Path.Combine(Path.GetDirectoryName(location), info.FileName);
- if (System.IO.File.Exists(fileName))
- {
- // note that, like System.Reflection, we return null for zero length files and
- // ManifestResource.Offset is ignored
- FileStream fs = new FileStream(fileName, FileMode.Open, FileAccess.Read, FileShare.Read | FileShare.Delete);
- if (fs.Length == 0)
- {
- fs.Close();
- return null;
- }
- return fs;
- }
- return null;
- case AssemblyRefTable.Index:
- Assembly asm = info.ReferencedAssembly;
- if (asm.__IsMissing)
- {
- return null;
- }
- return asm.GetManifestResourceStream(resourceName);
- default:
- throw new BadImageFormatException();
- }
- }
- SeekRVA((int)cliHeader.Resources.VirtualAddress + ManifestResource.records[i].Offset);
- BinaryReader br = new BinaryReader(stream);
- int length = br.ReadInt32();
- return new MemoryStream(br.ReadBytes(length));
- }
- }
- return null;
- }
-
- public override AssemblyName[] __GetReferencedAssemblies()
- {
- List<AssemblyName> list = new List<AssemblyName>();
- for (int i = 0; i < AssemblyRef.records.Length; i++)
- {
- AssemblyName name = new AssemblyName();
- name.Name = GetString(AssemblyRef.records[i].Name);
- name.Version = new Version(
- AssemblyRef.records[i].MajorVersion,
- AssemblyRef.records[i].MinorVersion,
- AssemblyRef.records[i].BuildNumber,
- AssemblyRef.records[i].RevisionNumber);
- if (AssemblyRef.records[i].PublicKeyOrToken != 0)
- {
- byte[] keyOrToken = GetBlobCopy(AssemblyRef.records[i].PublicKeyOrToken);
- const int PublicKey = 0x0001;
- if ((AssemblyRef.records[i].Flags & PublicKey) != 0)
- {
- name.SetPublicKey(keyOrToken);
- }
- else
- {
- name.SetPublicKeyToken(keyOrToken);
- }
- }
- else
- {
- name.SetPublicKeyToken(Empty<byte>.Array);
- }
- if (AssemblyRef.records[i].Culture != 0)
- {
- name.Culture = GetString(AssemblyRef.records[i].Culture);
- }
- else
- {
- name.Culture = "";
- }
- if (AssemblyRef.records[i].HashValue != 0)
- {
- name.hash = GetBlobCopy(AssemblyRef.records[i].HashValue);
- }
- name.Flags = (AssemblyNameFlags)AssemblyRef.records[i].Flags;
- list.Add(name);
- }
- return list.ToArray();
- }
-
- public override void __ResolveReferencedAssemblies(Assembly[] assemblies)
- {
- if (assemblyRefs == null)
- {
- assemblyRefs = new Assembly[AssemblyRef.RowCount];
- }
- for (int i = 0; i < assemblies.Length; i++)
- {
- if (assemblyRefs[i] == null)
- {
- assemblyRefs[i] = assemblies[i];
- }
- }
- }
-
- public override string[] __GetReferencedModules()
- {
- string[] arr = new string[this.ModuleRef.RowCount];
- for (int i = 0; i < arr.Length; i++)
- {
- arr[i] = GetString(this.ModuleRef.records[i]);
- }
- return arr;
- }
-
- public override Type[] __GetReferencedTypes()
- {
- Type[] arr = new Type[this.TypeRef.RowCount];
- for (int i = 0; i < arr.Length; i++)
- {
- arr[i] = ResolveType((TypeRefTable.Index << 24) + i + 1);
- }
- return arr;
- }
-
- public override Type[] __GetExportedTypes()
- {
- Type[] arr = new Type[this.ExportedType.RowCount];
- for (int i = 0; i < arr.Length; i++)
- {
- arr[i] = ResolveExportedType(i);
- }
- return arr;
- }
-
- private Type ResolveExportedType(int index)
- {
- TypeName typeName = GetTypeName(ExportedType.records[index].TypeNamespace, ExportedType.records[index].TypeName);
- int implementation = ExportedType.records[index].Implementation;
- int token = ExportedType.records[index].TypeDefId;
- int flags = ExportedType.records[index].Flags;
- switch (implementation >> 24)
- {
- case AssemblyRefTable.Index:
- return ResolveAssemblyRef((implementation & 0xFFFFFF) - 1).ResolveType(typeName).SetMetadataTokenForMissing(token, flags);
- case ExportedTypeTable.Index:
- return ResolveExportedType((implementation & 0xFFFFFF) - 1).ResolveNestedType(typeName).SetMetadataTokenForMissing(token, flags);
- case FileTable.Index:
- Module module = assembly.GetModule(GetString(File.records[(implementation & 0xFFFFFF) - 1].Name));
- return module.FindType(typeName) ?? module.universe.GetMissingTypeOrThrow(module, null, typeName).SetMetadataTokenForMissing(token, flags);
- default:
- throw new BadImageFormatException();
- }
- }
-
- internal override Type GetModuleType()
- {
- PopulateTypeDef();
- return moduleType;
- }
-
- public override string __ImageRuntimeVersion
- {
- get { return imageRuntimeVersion; }
- }
-
- public override int MDStreamVersion
- {
- get { return metadataStreamVersion; }
- }
-
- public override void __GetDataDirectoryEntry(int index, out int rva, out int length)
- {
- peFile.GetDataDirectoryEntry(index, out rva, out length);
- }
-
- public override long __RelativeVirtualAddressToFileOffset(int rva)
- {
- return peFile.RvaToFileOffset((uint)rva);
- }
-
- public override bool __GetSectionInfo(int rva, out string name, out int characteristics)
- {
- return peFile.GetSectionInfo(rva, out name, out characteristics);
- }
-
- public override int __ReadDataFromRVA(int rva, byte[] data, int offset, int length)
- {
- SeekRVA(rva);
- int totalBytesRead = 0;
- while (length > 0)
- {
- int read = stream.Read(data, offset, length);
- if (read == 0)
- {
- // C++ assemblies can have fields that have an RVA that lies outside of the file
- break;
- }
- offset += read;
- length -= read;
- totalBytesRead += read;
- }
- return totalBytesRead;
- }
-
- public override void GetPEKind(out PortableExecutableKinds peKind, out ImageFileMachine machine)
- {
- peKind = 0;
- if ((cliHeader.Flags & CliHeader.COMIMAGE_FLAGS_ILONLY) != 0)
- {
- peKind |= PortableExecutableKinds.ILOnly;
- }
- switch (cliHeader.Flags & (CliHeader.COMIMAGE_FLAGS_32BITREQUIRED | CliHeader.COMIMAGE_FLAGS_32BITPREFERRED))
- {
- case CliHeader.COMIMAGE_FLAGS_32BITREQUIRED:
- peKind |= PortableExecutableKinds.Required32Bit;
- break;
- case CliHeader.COMIMAGE_FLAGS_32BITREQUIRED | CliHeader.COMIMAGE_FLAGS_32BITPREFERRED:
- peKind |= PortableExecutableKinds.Preferred32Bit;
- break;
- default:
- // COMIMAGE_FLAGS_32BITPREFERRED by itself is illegal, so we ignore it
- // (not setting any flag is ok)
- break;
- }
- if (peFile.OptionalHeader.Magic == IMAGE_OPTIONAL_HEADER.IMAGE_NT_OPTIONAL_HDR64_MAGIC)
- {
- peKind |= PortableExecutableKinds.PE32Plus;
- }
-
- machine = (ImageFileMachine)peFile.FileHeader.Machine;
- }
-
- public override int __Subsystem
- {
- get { return peFile.OptionalHeader.Subsystem; }
- }
-
- public override IList<CustomAttributeData> __GetPlaceholderAssemblyCustomAttributes(bool multiple, bool security)
- {
- TypeName typeName;
- switch ((multiple ? 1 : 0) + (security ? 2 : 0))
- {
- case 0:
- typeName = new TypeName("System.Runtime.CompilerServices", "AssemblyAttributesGoHere");
- break;
- case 1:
- typeName = new TypeName("System.Runtime.CompilerServices", "AssemblyAttributesGoHereM");
- break;
- case 2:
- typeName = new TypeName("System.Runtime.CompilerServices", "AssemblyAttributesGoHereS");
- break;
- case 3:
- default:
- typeName = new TypeName("System.Runtime.CompilerServices", "AssemblyAttributesGoHereSM");
- break;
- }
- List<CustomAttributeData> list = new List<CustomAttributeData>();
- for (int i = 0; i < CustomAttribute.records.Length; i++)
- {
- if ((CustomAttribute.records[i].Parent >> 24) == TypeRefTable.Index)
- {
- int index = (CustomAttribute.records[i].Parent & 0xFFFFFF) - 1;
- if (typeName == GetTypeName(TypeRef.records[index].TypeNameSpace, TypeRef.records[index].TypeName))
- {
- list.Add(new CustomAttributeData(this, i));
- }
- }
- }
- return list;
- }
-
- internal override void Dispose()
- {
- stream.Close();
- }
-
- internal override void ExportTypes(int fileToken, IKVM.Reflection.Emit.ModuleBuilder manifestModule)
- {
- PopulateTypeDef();
- manifestModule.ExportTypes(typeDefs, fileToken);
- }
-
- protected override long GetImageBaseImpl()
- {
- return (long)peFile.OptionalHeader.ImageBase;
- }
-
- protected override long GetStackReserveImpl()
- {
- return (long)peFile.OptionalHeader.SizeOfStackReserve;
- }
-
- protected override int GetFileAlignmentImpl()
- {
- return (int)peFile.OptionalHeader.FileAlignment;
- }
-
- protected override DllCharacteristics GetDllCharacteristicsImpl()
- {
- return (DllCharacteristics)peFile.OptionalHeader.DllCharacteristics;
- }
-
- public override int __EntryPointRVA
- {
- get { return (cliHeader.Flags & CliHeader.COMIMAGE_FLAGS_NATIVE_ENTRYPOINT) != 0 ? (int)cliHeader.EntryPointToken : 0; }
- }
-
- public override int __EntryPointToken
- {
- get { return (cliHeader.Flags & CliHeader.COMIMAGE_FLAGS_NATIVE_ENTRYPOINT) == 0 ? (int)cliHeader.EntryPointToken : 0; }
- }
-
- public override System.Security.Cryptography.X509Certificates.X509Certificate GetSignerCertificate()
- {
- return Authenticode.GetSignerCertificate(stream);
- }
- }
-}
projects / mono.git / blobdiff