internal ITypeReference/*?*/ GetTypeReferenceFromStandaloneSignatureToken(
MethodDefinition owningObject,
uint token
) {
uint tokenKind = token & TokenTypeIds.TokenTypeMask;
uint rowId = token & TokenTypeIds.RIDMask;
if (tokenKind != TokenTypeIds.Signature) {
//TODO: error
return Dummy.TypeReference;
}
if (rowId == 0 || rowId > this.PEFileReader.StandAloneSigTable.NumberOfRows) {
//TODO: error
return Dummy.TypeReference;
}
StandAloneSigRow sigRow = this.PEFileReader.StandAloneSigTable[rowId];
// TODO: error checking offset in range
MemoryBlock signatureMemoryBlock = this.PEFileReader.BlobStream.GetMemoryBlockAt(sigRow.Signature);
// TODO: Error checking enough space in signature memoryBlock.
MemoryReader memoryReader = new MemoryReader(signatureMemoryBlock);
byte kind = memoryReader.PeekByte(0);
if (SignatureHeader.IsFieldSignature(kind)) {
FieldSignatureConverter converter = new FieldSignatureConverter(this, owningObject, memoryReader);
return converter.TypeReference;
}
if (SignatureHeader.IsLocalVarSignature(kind)) {
MethodBody.MethodBody/*?*/ body = owningObject.Body as MethodBody.MethodBody;
if (body == null) {
//TODO: error
return Dummy.TypeReference;
}
LocalVariableSignatureConverter converter = new LocalVariableSignatureConverter(this, body, memoryReader);
foreach (var loc in converter.LocalVariables) {
return loc.Type;
}
}
//TODO: error
return Dummy.TypeReference;
}
internal FieldSignatureConverter GetFieldRefSignature(
FieldReference moduleFieldReference
) {
uint signatureBlobOffset = this.PEFileReader.MemberRefTable.GetSignature(moduleFieldReference.MemberRefRowId);
// TODO: error checking offset in range
MemoryBlock signatureMemoryBlock = this.PEFileReader.BlobStream.GetMemoryBlockAt(signatureBlobOffset);
// TODO: Error checking enough space in signature memoryBlock.
MemoryReader memoryReader = new MemoryReader(signatureMemoryBlock);
// TODO: Check if this is really field signature there.
FieldSignatureConverter fieldSigConv = new FieldSignatureConverter(this, moduleFieldReference, memoryReader);
return fieldSigConv;
}
