internal static FieldSignature ReadSig(ModuleReader module, ByteReader br, IGenericContext context)
{
if (br.ReadByte() != FIELD)
{
throw new BadImageFormatException();
}
CustomModifiers mods = CustomModifiers.Read(module, br, context);
Type fieldType = ReadType(module, br, context);
return new FieldSignature(fieldType, mods);
}
private static Type ReadGenericInst(ModuleReader module, ByteReader br, IGenericContext context)
{
Type type;
switch (br.ReadByte())
{
case ELEMENT_TYPE_CLASS:
type = ReadTypeDefOrRefEncoded(module, br, context).MarkNotValueType();
break;
case ELEMENT_TYPE_VALUETYPE:
type = ReadTypeDefOrRefEncoded(module, br, context).MarkValueType();
break;
default:
throw new BadImageFormatException();
}
if (!type.__IsMissing && !type.IsGenericTypeDefinition)
{
throw new BadImageFormatException();
}
int genArgCount = br.ReadCompressedInt();
Type[] args = new Type[genArgCount];
Type[][] reqmod = null;
Type[][] optmod = null;
for (int i = 0; i < genArgCount; i++)
{
// LAMESPEC the Type production (23.2.12) doesn't include CustomMod* for genericinst, but C++ uses it, the verifier allows it and ildasm also supports it
CustomModifiers mods = ReadCustomModifiers(module, br, context);
if (mods.required != null || mods.optional != null)
{
if (reqmod == null)
{
reqmod = new Type[genArgCount][];
optmod = new Type[genArgCount][];
}
reqmod[i] = mods.required;
optmod[i] = mods.optional;
}
args[i] = ReadType(module, br, context);
}
return GenericTypeInstance.Make(type, args, reqmod, optmod);
}
internal static __StandAloneMethodSig ReadStandAloneMethodSig(ModuleReader module, ByteReader br, IGenericContext context)
{
CallingConventions callingConvention = 0;
System.Runtime.InteropServices.CallingConvention unmanagedCallingConvention = 0;
bool unmanaged;
byte flags = br.ReadByte();
switch (flags & 7)
{
case DEFAULT:
callingConvention = CallingConventions.Standard;
unmanaged = false;
break;
case 0x01: // C
unmanagedCallingConvention = System.Runtime.InteropServices.CallingConvention.Cdecl;
unmanaged = true;
break;
case 0x02: // STDCALL
unmanagedCallingConvention = System.Runtime.InteropServices.CallingConvention.StdCall;
unmanaged = true;
break;
case 0x03: // THISCALL
unmanagedCallingConvention = System.Runtime.InteropServices.CallingConvention.ThisCall;
unmanaged = true;
break;
case 0x04: // FASTCALL
unmanagedCallingConvention = System.Runtime.InteropServices.CallingConvention.FastCall;
unmanaged = true;
break;
case VARARG:
callingConvention = CallingConventions.VarArgs;
unmanaged = false;
break;
default:
throw new BadImageFormatException();
}
if ((flags & HASTHIS) != 0)
{
callingConvention |= CallingConventions.HasThis;
}
if ((flags & EXPLICITTHIS) != 0)
{
callingConvention |= CallingConventions.ExplicitThis;
}
if ((flags & GENERIC) != 0)
{
throw new BadImageFormatException();
}
int paramCount = br.ReadCompressedInt();
SkipCustomModifiers(br);
Type returnType = ReadRetType(module, br, context);
List<Type> parameterTypes = new List<Type>();
List<Type> optionalParameterTypes = new List<Type>();
List<Type> curr = parameterTypes;
for (int i = 0; i < paramCount; i++)
{
if (br.PeekByte() == SENTINEL)
{
br.ReadByte();
curr = optionalParameterTypes;
}
SkipCustomModifiers(br);
curr.Add(ReadParam(module, br, context));
}
return new __StandAloneMethodSig(unmanaged, unmanagedCallingConvention, callingConvention, returnType, parameterTypes.ToArray(), optionalParameterTypes.ToArray());
}
void ReadFixedArg(StringBuilder sb, ByteReader br, Type type, bool arrayElement = false)
{
if (type.IsArray)
{
int length = br.ReadInt32();
if (length == -1 && compat == CompatLevel.None)
{
sb.Append("nullref");
}
else if (length == 0 && compat != CompatLevel.None)
{
throw new IKVM.Reflection.BadImageFormatException();
}
else
{
Type elementType = type.GetElementType();
AppendCATypeName(sb, elementType, null);
sb.AppendFormat("[{0}](", length);
for (int i = 0; i < length; i++)
{
if (i != 0)
{
sb.Append(' ');
}
if (elementType == typeofSystemObject)
{
string typeName;
ReadFixedArg(sb, br, ReadFieldOrPropType(sb, br, out typeName), false);
}
else
{
ReadFixedArg(sb, br, elementType, true);
}
}
sb.Append(')');
}
}
else if (type.FullName == "System.Type" && type.Assembly.GetName().Name == "mscorlib")
{
if (!arrayElement)
{
AppendCATypeName(sb, type, null);
sb.Append('(');
}
string typeName;
var type1 = ReadType(br, out typeName);
if (type1 == null)
{
if (typeName == null)
{
sb.Append("nullref");
}
else
{
sb.Append("class ").Append(QuoteIdentifier(typeName, true));
}
}
else
{
AppendTypeName(sb, type1, typeName, compat != CompatLevel.None && IsNestedTypeWithNamespace(type1));
}
if (!arrayElement)
{
sb.Append(')');
}
}
else if (type.Assembly == mscorlib)
{
if (!arrayElement)
{
AppendCATypeName(sb, type, null);
sb.Append('(');
}
if (type == typeofSystemBoolean)
{
sb.Append(br.ReadByte() == 0 ? "false" : "true");
}
else if (type == typeofSystemByte)
{
sb.Append(br.ReadByte());
}
else if (type == typeofSystemSByte)
{
sb.Append(br.ReadSByte());
}
else if (type == typeofSystemChar)
{
sb.AppendFormat("0x{0:X4}", (int)br.ReadChar());
}
else if (type == typeofSystemInt16)
{
sb.Append(br.ReadInt16());
}
else if (type == typeofSystemUInt16)
{
sb.Append(br.ReadUInt16());
}
else if (type == typeofSystemInt32)
{
sb.Append(br.ReadInt32());
}
else if (type == typeofSystemUInt32)
{
sb.Append(br.ReadInt32());
}
else if (type == typeofSystemInt64)
{
sb.Append(br.ReadInt64());
}
else if (type == typeofSystemUInt64)
{
sb.Append(br.ReadInt64());
}
else if (type == typeofSystemSingle)
{
sb.Append(ToString(br.ReadSingle(), true));
}
else if (type == typeofSystemDouble)
{
sb.Append(ToString(br.ReadDouble(), true));
}
else if (type == typeofSystemString)
{
var str = br.ReadString();
if (str == null)
{
sb.Append("nullref");
}
else
{
if (compat != CompatLevel.None)
{
int pos = str.IndexOf((char)0);
if (pos != -1)
{
str = str.Substring(0, pos);
}
}
sb.Append(QuoteIdentifier(str, true));
}
}
else if (type == typeofSystemObject)
{
string typeName;
ReadFixedArg(sb, br, ReadFieldOrPropType(sb, br, out typeName));
}
else
{
throw new NotImplementedException(type.FullName);
}
if (!arrayElement)
{
sb.Append(')');
}
}
else if (type.__IsMissing || (compat != CompatLevel.None && typerefs.Contains(type)))
{
// ildasm actually tries to load the assembly, but we can't do that, so we cheat by having
// a list of 'known' enum types
if (type.Assembly.GetName().Name == "mscorlib")
{
switch (type.FullName)
{
case "System.AttributeTargets":
case "System.Runtime.ConstrainedExecution.Consistency":
case "System.Runtime.ConstrainedExecution.Cer":
case "System.Security.Permissions.SecurityAction":
case "System.Security.Permissions.SecurityPermissionFlag":
case "System.Runtime.Versioning.ResourceScope":
case "System.Runtime.InteropServices.CallingConvention":
case "System.Runtime.InteropServices.CharSet":
ReadFixedArg(sb, br, typeofSystemInt32);
return;
case "System.Security.SecurityRuleSet":
if (compat != CompatLevel.V20)
{
ReadFixedArg(sb, br, typeofSystemByte);
return;
}
break;
case "System.Diagnostics.Tracing.EventLevel":
case "System.Diagnostics.Tracing.EventTask":
case "System.Diagnostics.Tracing.EventOpcode":
if (compat != CompatLevel.V20 && compat != CompatLevel.V40)
{
ReadFixedArg(sb, br, typeofSystemInt32);
return;
}
break;
case "System.Type":
sb.Append("type(");
string typeName;
AppendTypeName(sb, ReadType(br, out typeName), typeName);
sb.Append(")");
return;
}
}
switch (br.Length)
{
case 1:
if (compat != CompatLevel.None)
{
// ildasm uses bool (???) as the underlying type in this case
sb.AppendFormat("bool({0})", br.ReadByte() == 0 ? "false" : "true");
}
else
{
// just guess that the enum has int8 as the underlying type
sb.AppendFormat("int8({0})", br.ReadSByte());
}
break;
case 2:
// just guess that the enum has int16 as the underlying type
sb.AppendFormat("int16({0})", br.ReadInt16());
break;
case 4:
// just guess that the enum has int32 as the underlying type
sb.AppendFormat("int32({0})", br.ReadInt32());
break;
case 8:
// just guess that the enum has int64 as the underlying type
sb.AppendFormat("int64({0})", br.ReadInt64());
break;
default:
throw new IKVM.Reflection.BadImageFormatException();
}
}
else if (type.IsEnum)
{
ReadFixedArg(sb, br, type.GetEnumUnderlyingType(), arrayElement);
}
else
{
throw new NotImplementedException(type.FullName);
}
}
// this reads just the optional parameter types, from a MethodRefSig
internal static Type[] ReadOptionalParameterTypes(ModuleReader module, ByteReader br, IGenericContext context, out CustomModifiers[] customModifiers)
{
br.ReadByte();
int paramCount = br.ReadCompressedUInt();
CustomModifiers.Skip(br);
ReadRetType(module, br, context);
for (int i = 0; i < paramCount; i++)
{
if (br.PeekByte() == SENTINEL)
{
br.ReadByte();
Type[] types = new Type[paramCount - i];
customModifiers = new CustomModifiers[types.Length];
for (int j = 0; j < types.Length; j++)
{
customModifiers[j] = CustomModifiers.Read(module, br, context);
types[j] = ReadType(module, br, context);
}
return types;
}
CustomModifiers.Skip(br);
ReadType(module, br, context);
}
customModifiers = Empty<CustomModifiers>.Array;
return Type.EmptyTypes;
}
private static Type ReadTypeOrByRef(ModuleReader module, ByteReader br, IGenericContext context)
{
if (br.PeekByte() == ELEMENT_TYPE_BYREF)
{
br.ReadByte();
// LAMESPEC it is allowed (by C++/CLI, ilasm and peverify) to have custom modifiers after the BYREF
// (which makes sense, as it is analogous to pointers)
CustomModifiers mods = CustomModifiers.Read(module, br, context);
// C++/CLI generates void& local variables, so we need to use ReadTypeOrVoid here
return ReadTypeOrVoid(module, br, context).__MakeByRefType(mods);
}
else
{
return ReadType(module, br, context);
}
}
// see ECMA 335 CLI spec June 2006 section 23.2.12 for this production
protected static Type ReadType(ModuleReader module, ByteReader br, IGenericContext context)
{
CustomModifiers mods;
switch (br.ReadByte())
{
case ELEMENT_TYPE_CLASS:
return ReadTypeDefOrRefEncoded(module, br, context).MarkNotValueType();
case ELEMENT_TYPE_VALUETYPE:
return ReadTypeDefOrRefEncoded(module, br, context).MarkValueType();
case ELEMENT_TYPE_BOOLEAN:
return module.universe.System_Boolean;
case ELEMENT_TYPE_CHAR:
return module.universe.System_Char;
case ELEMENT_TYPE_I1:
return module.universe.System_SByte;
case ELEMENT_TYPE_U1:
return module.universe.System_Byte;
case ELEMENT_TYPE_I2:
return module.universe.System_Int16;
case ELEMENT_TYPE_U2:
return module.universe.System_UInt16;
case ELEMENT_TYPE_I4:
return module.universe.System_Int32;
case ELEMENT_TYPE_U4:
return module.universe.System_UInt32;
case ELEMENT_TYPE_I8:
return module.universe.System_Int64;
case ELEMENT_TYPE_U8:
return module.universe.System_UInt64;
case ELEMENT_TYPE_R4:
return module.universe.System_Single;
case ELEMENT_TYPE_R8:
return module.universe.System_Double;
case ELEMENT_TYPE_I:
return module.universe.System_IntPtr;
case ELEMENT_TYPE_U:
return module.universe.System_UIntPtr;
case ELEMENT_TYPE_STRING:
return module.universe.System_String;
case ELEMENT_TYPE_OBJECT:
return module.universe.System_Object;
case ELEMENT_TYPE_VAR:
return context.GetGenericTypeArgument(br.ReadCompressedUInt());
case ELEMENT_TYPE_MVAR:
return context.GetGenericMethodArgument(br.ReadCompressedUInt());
case ELEMENT_TYPE_GENERICINST:
return ReadGenericInst(module, br, context);
case ELEMENT_TYPE_SZARRAY:
mods = CustomModifiers.Read(module, br, context);
return ReadType(module, br, context).__MakeArrayType(mods);
case ELEMENT_TYPE_ARRAY:
mods = CustomModifiers.Read(module, br, context);
return ReadType(module, br, context).__MakeArrayType(br.ReadCompressedUInt(), ReadArraySizes(br), ReadArrayBounds(br), mods);
case ELEMENT_TYPE_PTR:
mods = CustomModifiers.Read(module, br, context);
return ReadTypeOrVoid(module, br, context).__MakePointerType(mods);
case ELEMENT_TYPE_FNPTR:
return ReadFunctionPointer(module, br, context);
default:
throw new BadImageFormatException();
}
}
internal static Type[] ReadMethodSpec(ModuleReader module, ByteReader br, IGenericContext context)
{
if (br.ReadByte() != GENERICINST)
{
throw new BadImageFormatException();
}
Type[] args = new Type[br.ReadCompressedUInt()];
for (int i = 0; i < args.Length; i++)
{
CustomModifiers.Skip(br);
args[i] = ReadType(module, br, context);
}
return args;
}
internal static void ReadDeclarativeSecurity(Assembly asm, List<CustomAttributeData> list, int action, ByteReader br)
{
Universe u = asm.universe;
if (br.PeekByte() == '.')
{
br.ReadByte();
int count = br.ReadCompressedInt();
for (int j = 0; j < count; j++)
{
Type type = ReadType(asm, br);
ConstructorInfo constructor;
if (type == u.System_Security_Permissions_HostProtectionAttribute && action == (int)System.Security.Permissions.SecurityAction.LinkDemand)
{
constructor = type.GetConstructor(BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic, null, Type.EmptyTypes, null);
}
else
{
constructor = type.GetConstructor(BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic, null, new Type[] { u.System_Security_Permissions_SecurityAction }, null);
}
// LAMESPEC there is an additional length here (probably of the named argument list)
ByteReader slice = br.Slice(br.ReadCompressedInt());
// LAMESPEC the count of named arguments is a compressed integer (instead of UInt16 as NumNamed in custom attributes)
list.Add(new CustomAttributeData(constructor, action, ReadNamedArguments(asm, slice, slice.ReadCompressedInt(), type)));
}
}
else
{
// .NET 1.x format (xml)
char[] buf = new char[br.Length / 2];
for (int i = 0; i < buf.Length; i++)
{
buf[i] = br.ReadChar();
}
string xml = new String(buf);
ConstructorInfo constructor = u.System_Security_Permissions_PermissionSetAttribute.GetConstructor(new Type[] { u.System_Security_Permissions_SecurityAction });
List<CustomAttributeNamedArgument> args = new List<CustomAttributeNamedArgument>();
args.Add(new CustomAttributeNamedArgument(u.System_Security_Permissions_PermissionSetAttribute.GetProperty("XML"),
new CustomAttributeTypedArgument(u.System_String, xml)));
list.Add(new CustomAttributeData(constructor, action, args));
}
}
internal static PropertySignature ReadSig(ModuleReader module, ByteReader br, IGenericContext context)
{
byte flags = br.ReadByte();
if ((flags & PROPERTY) == 0)
{
throw new BadImageFormatException();
}
CallingConventions callingConvention = CallingConventions.Standard;
if ((flags & HASTHIS) != 0)
{
callingConvention |= CallingConventions.HasThis;
}
if ((flags & EXPLICITTHIS) != 0)
{
callingConvention |= CallingConventions.ExplicitThis;
}
Type returnType;
Type[] parameterTypes;
int paramCount = br.ReadCompressedInt();
CustomModifiers[] mods = null;
PackedCustomModifiers.Pack(ref mods, 0, CustomModifiers.Read(module, br, context), paramCount + 1);
returnType = ReadRetType(module, br, context);
parameterTypes = new Type[paramCount];
for (int i = 0; i < parameterTypes.Length; i++)
{
PackedCustomModifiers.Pack(ref mods, i + 1, CustomModifiers.Read(module, br, context), paramCount + 1);
parameterTypes[i] = ReadParam(module, br, context);
}
return new PropertySignature(callingConvention, returnType, parameterTypes, PackedCustomModifiers.Wrap(mods));
}
internal static PropertySignature ReadSig(ModuleReader module, ByteReader br, IGenericContext context)
{
byte flags = br.ReadByte();
if ((flags & PROPERTY) == 0)
{
throw new BadImageFormatException();
}
CallingConventions callingConvention = CallingConventions.Standard;
if ((flags & HASTHIS) != 0)
{
callingConvention |= CallingConventions.HasThis;
}
if ((flags & EXPLICITTHIS) != 0)
{
callingConvention |= CallingConventions.ExplicitThis;
}
Type returnType;
Type[] returnTypeRequiredCustomModifiers;
Type[] returnTypeOptionalCustomModifiers;
Type[] parameterTypes;
Type[][] parameterRequiredCustomModifiers;
Type[][] parameterOptionalCustomModifiers;
int paramCount = br.ReadCompressedInt();
ReadCustomModifiers(module, br, context, out returnTypeRequiredCustomModifiers, out returnTypeOptionalCustomModifiers);
returnType = ReadRetType(module, br, context);
parameterTypes = new Type[paramCount];
parameterRequiredCustomModifiers = null;
parameterOptionalCustomModifiers = null;
for (int i = 0; i < parameterTypes.Length; i++)
{
if (IsCustomModifier(br.PeekByte()))
{
if (parameterOptionalCustomModifiers == null)
{
parameterOptionalCustomModifiers = new Type[parameterTypes.Length][];
parameterRequiredCustomModifiers = new Type[parameterTypes.Length][];
}
ReadCustomModifiers(module, br, context, out parameterRequiredCustomModifiers[i], out parameterOptionalCustomModifiers[i]);
}
parameterTypes[i] = ReadParam(module, br, context);
}
return new PropertySignature(callingConvention, returnType, returnTypeOptionalCustomModifiers, returnTypeRequiredCustomModifiers,
parameterTypes, parameterOptionalCustomModifiers, parameterRequiredCustomModifiers);
}
private static int ReadTypeSpec(ByteReader br)
{
if (br.ReadByte() != Signature.ELEMENT_TYPE_GENERICINST)
{
throw new NotImplementedException("Expected ELEMENT_TYPE_GENERICINST");
}
switch (br.ReadByte())
{
case Signature.ELEMENT_TYPE_CLASS:
case Signature.ELEMENT_TYPE_VALUETYPE:
break;
default:
throw new NotImplementedException("Expected ELEMENT_TYPE_CLASS or ELEMENT_TYPE_VALUETYPE");
}
int encoded = br.ReadCompressedUInt();
switch (encoded & 3)
{
case 0:
return (TypeDefTable.Index << 24) + (encoded >> 2);
case 1:
return (TypeRefTable.Index << 24) + (encoded >> 2);
case 2:
return (TypeSpecTable.Index << 24) + (encoded >> 2);
default:
throw new BadImageFormatException();
}
}
internal static void ReadDeclarativeSecurity(Assembly asm, List<CustomAttributeData> list, int action, ByteReader br)
{
Universe u = asm.universe;
if (br.PeekByte() == '.')
{
br.ReadByte();
int count = br.ReadCompressedInt();
for (int j = 0; j < count; j++)
{
Type type = ReadType(asm, br);
ConstructorInfo constructor = type.GetPseudoCustomAttributeConstructor(u.System_Security_Permissions_SecurityAction);
// LAMESPEC there is an additional length here (probably of the named argument list)
byte[] blob = br.ReadBytes(br.ReadCompressedInt());
list.Add(new CustomAttributeData(asm, constructor, action, blob));
}
}
else
{
// .NET 1.x format (xml)
char[] buf = new char[br.Length / 2];
for (int i = 0; i < buf.Length; i++)
{
buf[i] = br.ReadChar();
}
string xml = new String(buf);
ConstructorInfo constructor = u.System_Security_Permissions_PermissionSetAttribute.GetPseudoCustomAttributeConstructor(u.System_Security_Permissions_SecurityAction);
List<CustomAttributeNamedArgument> args = new List<CustomAttributeNamedArgument>();
args.Add(new CustomAttributeNamedArgument(GetProperty(u.System_Security_Permissions_PermissionSetAttribute, "XML", u.System_String),
new CustomAttributeTypedArgument(u.System_String, xml)));
list.Add(new CustomAttributeData(asm.ManifestModule, constructor, new object[] { action }, args));
}
}
private static CustomAttributeTypedArgument ReadFixedArg(Module context, ByteReader br, Type type)
{
Universe u = context.universe;
if (type == u.System_String)
{
return new CustomAttributeTypedArgument(type, br.ReadString());
}
else if (type == u.System_Boolean)
{
return new CustomAttributeTypedArgument(type, br.ReadByte() != 0);
}
else if (type == u.System_Char)
{
return new CustomAttributeTypedArgument(type, br.ReadChar());
}
else if (type == u.System_Single)
{
return new CustomAttributeTypedArgument(type, br.ReadSingle());
}
else if (type == u.System_Double)
{
return new CustomAttributeTypedArgument(type, br.ReadDouble());
}
else if (type == u.System_SByte)
{
return new CustomAttributeTypedArgument(type, br.ReadSByte());
}
else if (type == u.System_Int16)
{
return new CustomAttributeTypedArgument(type, br.ReadInt16());
}
else if (type == u.System_Int32)
{
return new CustomAttributeTypedArgument(type, br.ReadInt32());
}
else if (type == u.System_Int64)
{
return new CustomAttributeTypedArgument(type, br.ReadInt64());
}
else if (type == u.System_Byte)
{
return new CustomAttributeTypedArgument(type, br.ReadByte());
}
else if (type == u.System_UInt16)
{
return new CustomAttributeTypedArgument(type, br.ReadUInt16());
}
else if (type == u.System_UInt32)
{
return new CustomAttributeTypedArgument(type, br.ReadUInt32());
}
else if (type == u.System_UInt64)
{
return new CustomAttributeTypedArgument(type, br.ReadUInt64());
}
else if (type == u.System_Type)
{
return new CustomAttributeTypedArgument(type, ReadType(context, br));
}
else if (type == u.System_Object)
{
return ReadFixedArg(context, br, ReadFieldOrPropType(context, br));
}
else if (type.IsArray)
{
int length = br.ReadInt32();
if (length == -1)
{
return new CustomAttributeTypedArgument(type, null);
}
Type elementType = type.GetElementType();
CustomAttributeTypedArgument[] array = new CustomAttributeTypedArgument[length];
for (int i = 0; i < length; i++)
{
array[i] = ReadFixedArg(context, br, elementType);
}
return new CustomAttributeTypedArgument(type, array);
}
else if (type.IsEnum)
{
return new CustomAttributeTypedArgument(type, ReadFixedArg(context, br, type.GetEnumUnderlyingTypeImpl()).Value);
}
else
{
throw new InvalidOperationException();
}
}
private static CustomAttributeTypedArgument ReadFixedArg(Assembly asm, ByteReader br, Type type)
{
Universe u = asm.universe;
if (type == u.System_String)
{
return new CustomAttributeTypedArgument(type, br.ReadString());
}
else if (type == u.System_Type)
{
return new CustomAttributeTypedArgument(type, ReadType(asm, br));
}
else if (type == u.System_Object)
{
return ReadFixedArg(asm, br, ReadFieldOrPropType(asm, br));
}
else if (type.IsArray)
{
int length = br.ReadInt32();
if (length == -1)
{
return new CustomAttributeTypedArgument(type, null);
}
Type elementType = type.GetElementType();
CustomAttributeTypedArgument[] array = new CustomAttributeTypedArgument[length];
for (int i = 0; i < length; i++)
{
array[i] = ReadFixedArg(asm, br, elementType);
}
return new CustomAttributeTypedArgument(type, array);
}
else if (type.IsEnum)
{
return new CustomAttributeTypedArgument(type, ReadFixedArg(asm, br, type.GetEnumUnderlyingTypeImpl()).Value);
}
else
{
switch (Type.GetTypeCode(type))
{
case TypeCode.Boolean:
return new CustomAttributeTypedArgument(type, br.ReadByte() != 0);
case TypeCode.Char:
return new CustomAttributeTypedArgument(type, br.ReadChar());
case TypeCode.Single:
return new CustomAttributeTypedArgument(type, br.ReadSingle());
case TypeCode.Double:
return new CustomAttributeTypedArgument(type, br.ReadDouble());
case TypeCode.SByte:
return new CustomAttributeTypedArgument(type, br.ReadSByte());
case TypeCode.Int16:
return new CustomAttributeTypedArgument(type, br.ReadInt16());
case TypeCode.Int32:
return new CustomAttributeTypedArgument(type, br.ReadInt32());
case TypeCode.Int64:
return new CustomAttributeTypedArgument(type, br.ReadInt64());
case TypeCode.Byte:
return new CustomAttributeTypedArgument(type, br.ReadByte());
case TypeCode.UInt16:
return new CustomAttributeTypedArgument(type, br.ReadUInt16());
case TypeCode.UInt32:
return new CustomAttributeTypedArgument(type, br.ReadUInt32());
case TypeCode.UInt64:
return new CustomAttributeTypedArgument(type, br.ReadUInt64());
default:
throw new InvalidOperationException();
}
}
}
private static IList<CustomAttributeNamedArgument> ReadNamedArguments(Module context, ByteReader br, int named, Type type, bool required)
{
List<CustomAttributeNamedArgument> list = new List<CustomAttributeNamedArgument>(named);
for (int i = 0; i < named; i++)
{
byte fieldOrProperty = br.ReadByte();
Type fieldOrPropertyType = ReadFieldOrPropType(context, br);
if (fieldOrPropertyType.__IsMissing && !required)
{
return null;
}
string name = br.ReadString();
CustomAttributeTypedArgument value = ReadFixedArg(context, br, fieldOrPropertyType);
MemberInfo member;
switch (fieldOrProperty)
{
case 0x53:
member = GetField(context, type, name, fieldOrPropertyType);
break;
case 0x54:
member = GetProperty(context, type, name, fieldOrPropertyType);
break;
default:
throw new BadImageFormatException();
}
list.Add(new CustomAttributeNamedArgument(member, value));
}
return list.AsReadOnly();
}
private static IList<CustomAttributeNamedArgument> ReadNamedArguments(Assembly asm, ByteReader br, int named, Type type)
{
List<CustomAttributeNamedArgument> list = new List<CustomAttributeNamedArgument>(named);
for (int i = 0; i < named; i++)
{
byte fieldOrProperty = br.ReadByte();
Type fieldOrPropertyType = ReadFieldOrPropType(asm, br);
string name = br.ReadString();
CustomAttributeTypedArgument value = ReadFixedArg(asm, br, fieldOrPropertyType);
MemberInfo member;
switch (fieldOrProperty)
{
case 0x53:
member = GetField(type, name);
break;
case 0x54:
member = GetProperty(type, name);
break;
default:
throw new BadImageFormatException();
}
if (member == null)
{
throw new BadImageFormatException();
}
list.Add(new CustomAttributeNamedArgument(member, value));
}
return list.AsReadOnly();
}
private static Type ReadTypeOrVoid(ModuleReader module, ByteReader br, IGenericContext context)
{
if (br.PeekByte() == ELEMENT_TYPE_VOID)
{
br.ReadByte();
return module.universe.System_Void;
}
else
{
return ReadType(module, br, context);
}
}
private static CustomModifiers ReadCustomModifiers(ModuleReader module, ByteReader br, IGenericContext context)
{
CustomModifiers mods = new CustomModifiers();
byte b = br.PeekByte();
if (IsCustomModifier(b))
{
List<Type> required = new List<Type>();
List<Type> optional = new List<Type>();
while (IsCustomModifier(b))
{
bool req = br.ReadByte() == ELEMENT_TYPE_CMOD_REQD;
Type type = ReadTypeDefOrRefEncoded(module, br, context);
(req ? required : optional).Add(type);
b = br.PeekByte();
}
mods.required = required.ToArray();
mods.optional = optional.ToArray();
}
return mods;
}
internal static void ReadLocalVarSig(ModuleReader module, ByteReader br, IGenericContext context, List<LocalVariableInfo> list)
{
if (br.Length < 2 || br.ReadByte() != LOCAL_SIG)
{
throw new BadImageFormatException("Invalid local variable signature");
}
int count = br.ReadCompressedUInt();
for (int i = 0; i < count; i++)
{
if (br.PeekByte() == ELEMENT_TYPE_TYPEDBYREF)
{
br.ReadByte();
list.Add(new LocalVariableInfo(i, module.universe.System_TypedReference, false, new CustomModifiers()));
}
else
{
CustomModifiers mods1 = CustomModifiers.Read(module, br, context);
bool pinned = false;
if (br.PeekByte() == ELEMENT_TYPE_PINNED)
{
br.ReadByte();
pinned = true;
}
CustomModifiers mods2 = CustomModifiers.Read(module, br, context);
Type type = ReadTypeOrByRef(module, br, context);
list.Add(new LocalVariableInfo(i, type, pinned, CustomModifiers.Combine(mods1, mods2)));
}
}
}
protected static void SkipCustomModifiers(ByteReader br)
{
byte b = br.PeekByte();
while (IsCustomModifier(b))
{
br.ReadByte();
br.ReadCompressedInt();
b = br.PeekByte();
}
}
protected static Type ReadParam(ModuleReader module, ByteReader br, IGenericContext context)
{
switch (br.PeekByte())
{
case ELEMENT_TYPE_TYPEDBYREF:
br.ReadByte();
return module.universe.System_TypedReference;
default:
return ReadTypeOrByRef(module, br, context);
}
}
protected static void ReadCustomModifiers(ModuleReader module, ByteReader br, IGenericContext context, out Type[] requiredCustomModifiers, out Type[] optionalCustomModifiers)
{
byte b = br.PeekByte();
if (IsCustomModifier(b))
{
List<Type> required = new List<Type>();
List<Type> optional = new List<Type>();
while (IsCustomModifier(b))
{
br.ReadByte();
Type type = ReadTypeDefOrRefEncoded(module, br, context);
if (b == ELEMENT_TYPE_CMOD_REQD)
{
required.Add(type);
}
else
{
optional.Add(type);
}
b = br.PeekByte();
}
requiredCustomModifiers = required.ToArray();
optionalCustomModifiers = optional.ToArray();
}
else
{
requiredCustomModifiers = null;
optionalCustomModifiers = null;
}
}
void ReadNamedArguments(StringBuilder sb, ByteReader br, int named, int level, bool securityCompatHack)
{
for (int i = 0; i < named; i++)
{
if (i != 0)
{
AppendNewLine(sb, level);
}
byte fieldOrProperty = br.ReadByte();
switch (fieldOrProperty)
{
case 0x53:
sb.Append("field ");
break;
case 0x54:
sb.Append("property ");
break;
default:
throw new IKVM.Reflection.BadImageFormatException();
}
string typeName;
Type fieldOrPropertyType = ReadFieldOrPropType(sb, br, out typeName);
AppendCATypeName(sb, fieldOrPropertyType, typeName, securityCompatHack);
sb.Append(' ').Append(QuoteIdentifier(br.ReadString(), true)).Append(" = ");
ReadFixedArg(sb, br, fieldOrPropertyType);
}
}
// this reads just the optional parameter types, from a MethodRefSig
internal static Type[] ReadOptionalParameterTypes(ModuleReader module, ByteReader br)
{
br.ReadByte();
int paramCount = br.ReadCompressedInt();
SkipCustomModifiers(br);
ReadRetType(module, br, null);
for (int i = 0; i < paramCount; i++)
{
if (br.PeekByte() == SENTINEL)
{
br.ReadByte();
Type[] types = new Type[paramCount - i];
for (int j = 0; j < types.Length; j++)
{
SkipCustomModifiers(br);
types[j] = ReadType(module, br, null);
}
return types;
}
SkipCustomModifiers(br);
ReadType(module, br, null);
}
return Type.EmptyTypes;
}
Type ReadFieldOrPropType(StringBuilder sb, ByteReader br, out string typeName)
{
const byte ELEMENT_TYPE_BOOLEAN = 0x02;
const byte ELEMENT_TYPE_CHAR = 0x03;
const byte ELEMENT_TYPE_I1 = 0x04;
const byte ELEMENT_TYPE_U1 = 0x05;
const byte ELEMENT_TYPE_I2 = 0x06;
const byte ELEMENT_TYPE_U2 = 0x07;
const byte ELEMENT_TYPE_I4 = 0x08;
const byte ELEMENT_TYPE_U4 = 0x09;
const byte ELEMENT_TYPE_I8 = 0x0a;
const byte ELEMENT_TYPE_U8 = 0x0b;
const byte ELEMENT_TYPE_R4 = 0x0c;
const byte ELEMENT_TYPE_R8 = 0x0d;
const byte ELEMENT_TYPE_STRING = 0x0e;
const byte ELEMENT_TYPE_SZARRAY = 0x1d;
typeName = null;
switch (br.ReadByte())
{
case ELEMENT_TYPE_BOOLEAN:
return typeofSystemBoolean;
case ELEMENT_TYPE_CHAR:
return typeofSystemChar;
case ELEMENT_TYPE_I1:
return typeofSystemSByte;
case ELEMENT_TYPE_U1:
return typeofSystemByte;
case ELEMENT_TYPE_I2:
return typeofSystemInt16;
case ELEMENT_TYPE_U2:
return typeofSystemUInt16;
case ELEMENT_TYPE_I4:
return typeofSystemInt32;
case ELEMENT_TYPE_U4:
return typeofSystemUInt32;
case ELEMENT_TYPE_I8:
return typeofSystemInt64;
case ELEMENT_TYPE_U8:
return typeofSystemUInt64;
case ELEMENT_TYPE_R4:
return typeofSystemSingle;
case ELEMENT_TYPE_R8:
return typeofSystemDouble;
case ELEMENT_TYPE_STRING:
return typeofSystemString;
case ELEMENT_TYPE_SZARRAY:
return ReadFieldOrPropType(sb, br, out typeName).MakeArrayType();
case 0x55:
return ReadType(br, out typeName);
case 0x50:
return typeofSystemType;
case 0x51:
return typeofSystemObject;
default:
throw new IKVM.Reflection.BadImageFormatException();
}
}
private static Type ReadFieldOrPropType(Module context, ByteReader br)
{
Universe u = context.universe;
switch (br.ReadByte())
{
case Signature.ELEMENT_TYPE_BOOLEAN:
return u.System_Boolean;
case Signature.ELEMENT_TYPE_CHAR:
return u.System_Char;
case Signature.ELEMENT_TYPE_I1:
return u.System_SByte;
case Signature.ELEMENT_TYPE_U1:
return u.System_Byte;
case Signature.ELEMENT_TYPE_I2:
return u.System_Int16;
case Signature.ELEMENT_TYPE_U2:
return u.System_UInt16;
case Signature.ELEMENT_TYPE_I4:
return u.System_Int32;
case Signature.ELEMENT_TYPE_U4:
return u.System_UInt32;
case Signature.ELEMENT_TYPE_I8:
return u.System_Int64;
case Signature.ELEMENT_TYPE_U8:
return u.System_UInt64;
case Signature.ELEMENT_TYPE_R4:
return u.System_Single;
case Signature.ELEMENT_TYPE_R8:
return u.System_Double;
case Signature.ELEMENT_TYPE_STRING:
return u.System_String;
case Signature.ELEMENT_TYPE_SZARRAY:
return ReadFieldOrPropType(context, br).MakeArrayType();
case 0x55:
return ReadType(context, br);
case 0x50:
return u.System_Type;
case 0x51:
return u.System_Object;
default:
throw new BadImageFormatException();
}
}
internal static MethodSignature ReadSig(ModuleReader module, ByteReader br, IGenericContext context)
{
CallingConventions callingConvention;
int genericParamCount;
Type returnType;
Type[] parameterTypes;
byte flags = br.ReadByte();
switch (flags & 7)
{
case DEFAULT:
callingConvention = CallingConventions.Standard;
break;
case VARARG:
callingConvention = CallingConventions.VarArgs;
break;
default:
throw new BadImageFormatException();
}
if ((flags & HASTHIS) != 0)
{
callingConvention |= CallingConventions.HasThis;
}
if ((flags & EXPLICITTHIS) != 0)
{
callingConvention |= CallingConventions.ExplicitThis;
}
genericParamCount = 0;
if ((flags & GENERIC) != 0)
{
genericParamCount = br.ReadCompressedInt();
context = new UnboundGenericMethodContext(context);
}
int paramCount = br.ReadCompressedInt();
Type[][][] modifiers = null;
Type[] optionalCustomModifiers;
Type[] requiredCustomModifiers;
ReadCustomModifiers(module, br, context, out requiredCustomModifiers, out optionalCustomModifiers);
returnType = ReadRetType(module, br, context);
parameterTypes = new Type[paramCount];
PackedCustomModifiers.SetModifiers(ref modifiers, 0, 0, optionalCustomModifiers, paramCount + 1);
PackedCustomModifiers.SetModifiers(ref modifiers, 0, 1, requiredCustomModifiers, paramCount + 1);
for (int i = 0; i < parameterTypes.Length; i++)
{
if ((callingConvention & CallingConventions.VarArgs) != 0 && br.PeekByte() == SENTINEL)
{
Array.Resize(ref parameterTypes, i);
if (modifiers != null)
{
Array.Resize(ref modifiers, i + 1);
}
break;
}
ReadCustomModifiers(module, br, context, out requiredCustomModifiers, out optionalCustomModifiers);
PackedCustomModifiers.SetModifiers(ref modifiers, i + 1, 0, optionalCustomModifiers, paramCount + 1);
PackedCustomModifiers.SetModifiers(ref modifiers, i + 1, 1, requiredCustomModifiers, paramCount + 1);
parameterTypes[i] = ReadParam(module, br, context);
}
return new MethodSignature(returnType, parameterTypes, modifiers, callingConvention, genericParamCount);
}
internal static FieldSignature ReadSig(ModuleReader module, ByteReader br, IGenericContext context)
{
if (br.ReadByte() != FIELD)
{
throw new BadImageFormatException();
}
Type fieldType;
Type[] optionalCustomModifiers;
Type[] requiredCustomModifiers;
ReadCustomModifiers(module, br, context, out requiredCustomModifiers, out optionalCustomModifiers);
fieldType = ReadType(module, br, context);
return new FieldSignature(fieldType, optionalCustomModifiers, requiredCustomModifiers);
}