public TypeDesc ConvertToCanonFormIfNecessary(TypeDesc type, CanonicalFormKind policy)
{
if (!type.IsCanonicalSubtype(CanonicalFormKind.Any))
{
return(type);
}
if (type.IsPointer || type.IsByRef)
{
ParameterizedType parameterizedType = (ParameterizedType)type;
TypeDesc paramTypeConverted = ConvertToCanonFormIfNecessary(parameterizedType.ParameterType, policy);
if (paramTypeConverted == parameterizedType.ParameterType)
{
return(type);
}
if (type.IsPointer)
{
return(TypeSystemContext.GetPointerType(paramTypeConverted));
}
if (type.IsByRef)
{
return(TypeSystemContext.GetByRefType(paramTypeConverted));
}
}
return(type.ConvertToCanonForm(policy));
}
private TypeDesc GetModifierType(ref NativeParser parser, TypeModifierKind modifier)
{
TypeDesc typeParameter = GetType(ref parser);
switch (modifier)
{
case TypeModifierKind.Array:
return(_typeSystemContext.GetArrayType(typeParameter));
case TypeModifierKind.ByRef:
return(_typeSystemContext.GetByRefType(typeParameter));
case TypeModifierKind.Pointer:
return(_typeSystemContext.GetPointerType(typeParameter));
default:
parser.ThrowBadImageFormatException();
return(null);
}
}
private TypeDesc ParseTypeImpl(SignatureTypeCode typeCode)
{
// Switch on the type.
switch (typeCode)
{
case SignatureTypeCode.Void:
return(GetWellKnownType(WellKnownType.Void));
case SignatureTypeCode.Boolean:
return(GetWellKnownType(WellKnownType.Boolean));
case SignatureTypeCode.SByte:
return(GetWellKnownType(WellKnownType.SByte));
case SignatureTypeCode.Byte:
return(GetWellKnownType(WellKnownType.Byte));
case SignatureTypeCode.Int16:
return(GetWellKnownType(WellKnownType.Int16));
case SignatureTypeCode.UInt16:
return(GetWellKnownType(WellKnownType.UInt16));
case SignatureTypeCode.Int32:
return(GetWellKnownType(WellKnownType.Int32));
case SignatureTypeCode.UInt32:
return(GetWellKnownType(WellKnownType.UInt32));
case SignatureTypeCode.Int64:
return(GetWellKnownType(WellKnownType.Int64));
case SignatureTypeCode.UInt64:
return(GetWellKnownType(WellKnownType.UInt64));
case SignatureTypeCode.Single:
return(GetWellKnownType(WellKnownType.Single));
case SignatureTypeCode.Double:
return(GetWellKnownType(WellKnownType.Double));
case SignatureTypeCode.Char:
return(GetWellKnownType(WellKnownType.Char));
case SignatureTypeCode.String:
return(GetWellKnownType(WellKnownType.String));
case SignatureTypeCode.IntPtr:
return(GetWellKnownType(WellKnownType.IntPtr));
case SignatureTypeCode.UIntPtr:
return(GetWellKnownType(WellKnownType.UIntPtr));
case SignatureTypeCode.Object:
return(GetWellKnownType(WellKnownType.Object));
case SignatureTypeCode.TypeHandle:
return(ResolveHandle(_reader.ReadTypeHandle()));
case SignatureTypeCode.SZArray:
{
var elementType = ParseType();
if (elementType == null)
{
return(null);
}
return(_tsc.GetArrayType(elementType));
}
case SignatureTypeCode.Array:
{
var elementType = ParseType();
var rank = _reader.ReadCompressedInteger();
if (_embeddedSignatureDataList != null)
{
var boundsCount = _reader.ReadCompressedInteger();
int [] bounds = boundsCount > 0 ? new int[boundsCount] : Array.Empty <int>();
for (int i = 0; i < boundsCount; i++)
{
bounds[i] = _reader.ReadCompressedInteger();
}
var lowerBoundsCount = _reader.ReadCompressedInteger();
int [] lowerBounds = lowerBoundsCount > 0 ? new int[lowerBoundsCount] : Array.Empty <int>();
bool nonZeroLowerBounds = false;
for (int j = 0; j < lowerBoundsCount; j++)
{
int loBound = _reader.ReadCompressedSignedInteger();
if (loBound != 0)
{
nonZeroLowerBounds = true;
}
lowerBounds[j] = loBound;
}
if (boundsCount != 0 || lowerBoundsCount != rank || nonZeroLowerBounds)
{
StringBuilder arrayShapeString = new StringBuilder();
arrayShapeString.Append(string.Join(",", bounds));
arrayShapeString.Append('|');
arrayShapeString.Append(string.Join(",", lowerBounds));
_embeddedSignatureDataList.Add(new EmbeddedSignatureData {
index = string.Join(".", _indexStack) + "|" + arrayShapeString.ToString(), kind = EmbeddedSignatureDataKind.ArrayShape, type = null
});
}
}
else
{
var boundsCount = _reader.ReadCompressedInteger();
for (int i = 0; i < boundsCount; i++)
{
_reader.ReadCompressedInteger();
}
var lowerBoundsCount = _reader.ReadCompressedInteger();
for (int j = 0; j < lowerBoundsCount; j++)
{
_reader.ReadCompressedSignedInteger();
}
}
if (elementType != null)
{
return(_tsc.GetArrayType(elementType, rank));
}
else
{
return(null);
}
}
case SignatureTypeCode.ByReference:
{
TypeDesc byRefedType = ParseType();
if (byRefedType != null)
{
return(byRefedType.MakeByRefType());
}
else
{
return(null);
}
}
case SignatureTypeCode.Pointer:
{
TypeDesc pointedAtType = ParseType();
if (pointedAtType != null)
{
return(_tsc.GetPointerType(pointedAtType));
}
else
{
return(null);
}
}
case SignatureTypeCode.GenericTypeParameter:
return(_tsc.GetSignatureVariable(_reader.ReadCompressedInteger(), false));
case SignatureTypeCode.GenericMethodParameter:
return(_tsc.GetSignatureVariable(_reader.ReadCompressedInteger(), true));
case SignatureTypeCode.GenericTypeInstance:
{
TypeDesc typeDef = ParseType();
MetadataType metadataTypeDef = null;
if (typeDef != null)
{
metadataTypeDef = typeDef as MetadataType;
if (metadataTypeDef == null)
{
throw new BadImageFormatException();
}
}
TypeDesc[] instance = new TypeDesc[_reader.ReadCompressedInteger()];
for (int i = 0; i < instance.Length; i++)
{
instance[i] = ParseType();
if (instance[i] == null)
{
metadataTypeDef = null;
}
}
if (metadataTypeDef != null)
{
return(_tsc.GetInstantiatedType(metadataTypeDef, new Instantiation(instance)));
}
else
{
return(null);
}
}
case SignatureTypeCode.TypedReference:
return(GetWellKnownType(WellKnownType.TypedReference));
case SignatureTypeCode.FunctionPointer:
MethodSignature sig = ParseMethodSignatureInternal(skipEmbeddedSignatureData: true);
if (sig != null)
{
return(_tsc.GetFunctionPointerType(sig));
}
else
{
return(null);
}
default:
throw new BadImageFormatException();
}
}
private TypeDesc ParseTypeImpl(SignatureTypeCode typeCode)
{
// Switch on the type.
switch (typeCode)
{
case SignatureTypeCode.Void:
return(GetWellKnownType(WellKnownType.Void));
case SignatureTypeCode.Boolean:
return(GetWellKnownType(WellKnownType.Boolean));
case SignatureTypeCode.SByte:
return(GetWellKnownType(WellKnownType.SByte));
case SignatureTypeCode.Byte:
return(GetWellKnownType(WellKnownType.Byte));
case SignatureTypeCode.Int16:
return(GetWellKnownType(WellKnownType.Int16));
case SignatureTypeCode.UInt16:
return(GetWellKnownType(WellKnownType.UInt16));
case SignatureTypeCode.Int32:
return(GetWellKnownType(WellKnownType.Int32));
case SignatureTypeCode.UInt32:
return(GetWellKnownType(WellKnownType.UInt32));
case SignatureTypeCode.Int64:
return(GetWellKnownType(WellKnownType.Int64));
case SignatureTypeCode.UInt64:
return(GetWellKnownType(WellKnownType.UInt64));
case SignatureTypeCode.Single:
return(GetWellKnownType(WellKnownType.Single));
case SignatureTypeCode.Double:
return(GetWellKnownType(WellKnownType.Double));
case SignatureTypeCode.Char:
return(GetWellKnownType(WellKnownType.Char));
case SignatureTypeCode.String:
return(GetWellKnownType(WellKnownType.String));
case SignatureTypeCode.IntPtr:
return(GetWellKnownType(WellKnownType.IntPtr));
case SignatureTypeCode.UIntPtr:
return(GetWellKnownType(WellKnownType.UIntPtr));
case SignatureTypeCode.Object:
return(GetWellKnownType(WellKnownType.Object));
case SignatureTypeCode.TypeHandle:
return(ResolveHandle(_reader.ReadTypeHandle()));
case SignatureTypeCode.SZArray:
{
var elementType = ParseType();
if (elementType == null)
{
return(null);
}
return(_tsc.GetArrayType(elementType));
}
case SignatureTypeCode.Array:
{
var elementType = ParseType();
var rank = _reader.ReadCompressedInteger();
// TODO: Bounds for multi-dimmensional arrays
var boundsCount = _reader.ReadCompressedInteger();
for (int i = 0; i < boundsCount; i++)
{
_reader.ReadCompressedInteger();
}
var lowerBoundsCount = _reader.ReadCompressedInteger();
for (int j = 0; j < lowerBoundsCount; j++)
{
_reader.ReadCompressedInteger();
}
if (elementType != null)
{
return(_tsc.GetArrayType(elementType, rank));
}
else
{
return(null);
}
}
case SignatureTypeCode.ByReference:
{
TypeDesc byRefedType = ParseType();
if (byRefedType != null)
{
return(byRefedType.MakeByRefType());
}
else
{
return(null);
}
}
case SignatureTypeCode.Pointer:
{
TypeDesc pointedAtType = ParseType();
if (pointedAtType != null)
{
return(_tsc.GetPointerType(pointedAtType));
}
else
{
return(null);
}
}
case SignatureTypeCode.GenericTypeParameter:
return(_tsc.GetSignatureVariable(_reader.ReadCompressedInteger(), false));
case SignatureTypeCode.GenericMethodParameter:
return(_tsc.GetSignatureVariable(_reader.ReadCompressedInteger(), true));
case SignatureTypeCode.GenericTypeInstance:
{
TypeDesc typeDef = ParseType();
MetadataType metadataTypeDef = null;
if (typeDef != null)
{
metadataTypeDef = typeDef as MetadataType;
if (metadataTypeDef == null)
{
throw new BadImageFormatException();
}
}
TypeDesc[] instance = new TypeDesc[_reader.ReadCompressedInteger()];
for (int i = 0; i < instance.Length; i++)
{
instance[i] = ParseType();
if (instance[i] == null)
{
metadataTypeDef = null;
}
}
if (metadataTypeDef != null)
{
return(_tsc.GetInstantiatedType(metadataTypeDef, new Instantiation(instance)));
}
else
{
return(null);
}
}
case SignatureTypeCode.TypedReference:
return(GetWellKnownType(WellKnownType.TypedReference));
case SignatureTypeCode.FunctionPointer:
MethodSignature sig = ParseMethodSignatureInternal(skipEmbeddedSignatureData: true);
if (sig != null)
{
return(_tsc.GetFunctionPointerType(sig));
}
else
{
return(null);
}
default:
throw new BadImageFormatException();
}
}