protected NuGenBaseSignatureItem ReadSignatureItem(ref IntPtr signatureBlob)
{
NuGenBaseSignatureItem result = null;
uint data;
uint dataLength = NuGenSignatureCompression.CorSigUncompressData(signatureBlob, out data);
CorElementType elementType = (CorElementType)data;
switch (elementType)
{
case CorElementType.ELEMENT_TYPE_CMOD_OPT:
case CorElementType.ELEMENT_TYPE_CMOD_REQD:
NuGenCustomModifier customModifier = ReadCustomModifier(ref signatureBlob);
result = customModifier;
customModifier.NextItem = ReadSignatureItem(ref signatureBlob);
break;
case CorElementType.ELEMENT_TYPE_END:
NuGenHelperFunctions.StepIntPtr(ref signatureBlob, dataLength);
result = new NuGenEndSignatureItem();
break;
case CorElementType.ELEMENT_TYPE_BYREF:
NuGenHelperFunctions.StepIntPtr(ref signatureBlob);
result = ReadSignatureItem(ref signatureBlob);
NuGenTypeSignatureItem typeItem = null;
if (result is NuGenArraySignatureItem)
{
typeItem = ((NuGenArraySignatureItem)result).Type;
typeItem.ByRef = true;
}
else if (result is NuGenVarSignatureItem)
{
NuGenVarSignatureItem varItem = ((NuGenVarSignatureItem)result);
varItem.ByRef = true;
}
else
{
while (result is NuGenCustomModifier)
{
result = ((NuGenCustomModifier)result).NextItem;
}
typeItem = (NuGenTypeSignatureItem)result;
typeItem.ByRef = true;
}
break;
case CorElementType.ELEMENT_TYPE_TYPEDBYREF:
NuGenHelperFunctions.StepIntPtr(ref signatureBlob, dataLength);
NuGenElementSignatureItem elementItem = new NuGenElementSignatureItem();
elementItem.ElementType = elementType;
result = elementItem;
break;
case CorElementType.ELEMENT_TYPE_PINNED:
NuGenHelperFunctions.StepIntPtr(ref signatureBlob);
result = ReadSignatureItem(ref signatureBlob);
((NuGenTypeSignatureItem)result).Pinned = true;
break;
case CorElementType.ELEMENT_TYPE_ARRAY:
NuGenHelperFunctions.StepIntPtr(ref signatureBlob, dataLength);
uint value;
NuGenArraySignatureItem arrayItem = new NuGenArraySignatureItem();
arrayItem.Type = (NuGenTypeSignatureItem)ReadSignatureItem(ref signatureBlob);
NuGenHelperFunctions.StepIntPtr(ref signatureBlob, NuGenSignatureCompression.CorSigUncompressData(signatureBlob, out value));
arrayItem.Rank = value;
NuGenHelperFunctions.StepIntPtr(ref signatureBlob, NuGenSignatureCompression.CorSigUncompressData(signatureBlob, out value));
if (value > 0)
{
arrayItem.Sizes = new List<uint>(Convert.ToInt32(value));
for (int index = 0; index < value; index++)
{
uint size;
NuGenHelperFunctions.StepIntPtr(ref signatureBlob, NuGenSignatureCompression.CorSigUncompressData(signatureBlob, out size));
arrayItem.Sizes.Add(size);
}
}
NuGenHelperFunctions.StepIntPtr(ref signatureBlob, NuGenSignatureCompression.CorSigUncompressData(signatureBlob, out value));
if (value > 0)
{
arrayItem.LoBounds = new List<uint>(Convert.ToInt32(value));
for (int index = 0; index < value; index++)
{
uint loBound;
NuGenHelperFunctions.StepIntPtr(ref signatureBlob, NuGenSignatureCompression.CorSigUncompressData(signatureBlob, out loBound));
arrayItem.LoBounds.Add(loBound);
}
}
result = arrayItem;
break;
case CorElementType.ELEMENT_TYPE_GENERICINST:
NuGenHelperFunctions.StepIntPtr(ref signatureBlob, dataLength);
NuGenTypeSignatureItem genericType = (NuGenTypeSignatureItem)ReadType(ref signatureBlob);
result = genericType;
uint genericParametersCount = 0;
NuGenHelperFunctions.StepIntPtr(ref signatureBlob, NuGenSignatureCompression.CorSigUncompressData(SignatureBlob, out genericParametersCount));
if (genericParametersCount > 0)
{
genericType.GenericParameters = new List<NuGenBaseSignatureItem>();
for (uint genericParametersIndex = 0; genericParametersIndex < genericParametersCount; genericParametersIndex++)
{
genericType.GenericParameters.Add(ReadSignatureItem(ref signatureBlob));
}
}
break;
case CorElementType.ELEMENT_TYPE_FNPTR:
NuGenHelperFunctions.StepIntPtr(ref signatureBlob, dataLength);
NuGenMethodRefSignatureReader signatureReader = new NuGenMethodRefSignatureReader(AllTokens, signatureBlob, SignatureLength);
signatureReader.ReadSignature();
signatureBlob = signatureReader.SignatureBlob;
result = new NuGenFunctionPointerSignatureItem(signatureReader);
break;
case CorElementType.ELEMENT_TYPE_MVAR:
case CorElementType.ELEMENT_TYPE_VAR:
NuGenHelperFunctions.StepIntPtr(ref signatureBlob, dataLength);
byte number = Marshal.ReadByte(signatureBlob);
NuGenHelperFunctions.StepIntPtr(ref signatureBlob, 1);
NuGenVarSignatureItem varSignatureItem = new NuGenVarSignatureItem(number, elementType);
result = varSignatureItem;
if (!HasGenericMethodParameter && varSignatureItem.MethodParameter)
{
HasGenericMethodParameter = true;
}
break;
case CorElementType.ELEMENT_TYPE_MAX:
case CorElementType.ELEMENT_TYPE_R4_HFA:
case CorElementType.ELEMENT_TYPE_R8_HFA:
throw new NotImplementedException(string.Format("Unknown signature element ('{0}').", elementType));
default:
result = ReadType(ref signatureBlob);
break;
}
return result;
}
protected NuGenBaseSignatureItem ReadSignatureItem(ref IntPtr signatureBlob)
{
NuGenBaseSignatureItem result = null;
uint data;
uint dataLength = NuGenSignatureCompression.CorSigUncompressData(signatureBlob, out data);
CorElementType elementType = (CorElementType)data;
switch (elementType)
{
case CorElementType.ELEMENT_TYPE_CMOD_OPT:
case CorElementType.ELEMENT_TYPE_CMOD_REQD:
NuGenCustomModifier customModifier = ReadCustomModifier(ref signatureBlob);
result = customModifier;
customModifier.NextItem = ReadSignatureItem(ref signatureBlob);
break;
case CorElementType.ELEMENT_TYPE_END:
NuGenHelperFunctions.StepIntPtr(ref signatureBlob, dataLength);
result = new NuGenEndSignatureItem();
break;
case CorElementType.ELEMENT_TYPE_BYREF:
NuGenHelperFunctions.StepIntPtr(ref signatureBlob);
result = ReadSignatureItem(ref signatureBlob);
NuGenTypeSignatureItem typeItem = null;
if (result is NuGenArraySignatureItem)
{
typeItem = ((NuGenArraySignatureItem)result).Type;
typeItem.ByRef = true;
}
else if (result is NuGenVarSignatureItem)
{
NuGenVarSignatureItem varItem = ((NuGenVarSignatureItem)result);
varItem.ByRef = true;
}
else
{
while (result is NuGenCustomModifier)
{
result = ((NuGenCustomModifier)result).NextItem;
}
typeItem = (NuGenTypeSignatureItem)result;
typeItem.ByRef = true;
}
break;
case CorElementType.ELEMENT_TYPE_TYPEDBYREF:
NuGenHelperFunctions.StepIntPtr(ref signatureBlob, dataLength);
NuGenElementSignatureItem elementItem = new NuGenElementSignatureItem();
elementItem.ElementType = elementType;
result = elementItem;
break;
case CorElementType.ELEMENT_TYPE_PINNED:
NuGenHelperFunctions.StepIntPtr(ref signatureBlob);
result = ReadSignatureItem(ref signatureBlob);
((NuGenTypeSignatureItem)result).Pinned = true;
break;
case CorElementType.ELEMENT_TYPE_ARRAY:
NuGenHelperFunctions.StepIntPtr(ref signatureBlob, dataLength);
uint value;
NuGenArraySignatureItem arrayItem = new NuGenArraySignatureItem();
arrayItem.Type = (NuGenTypeSignatureItem)ReadSignatureItem(ref signatureBlob);
NuGenHelperFunctions.StepIntPtr(ref signatureBlob, NuGenSignatureCompression.CorSigUncompressData(signatureBlob, out value));
arrayItem.Rank = value;
NuGenHelperFunctions.StepIntPtr(ref signatureBlob, NuGenSignatureCompression.CorSigUncompressData(signatureBlob, out value));
if (value > 0)
{
arrayItem.Sizes = new List <uint>(Convert.ToInt32(value));
for (int index = 0; index < value; index++)
{
uint size;
NuGenHelperFunctions.StepIntPtr(ref signatureBlob, NuGenSignatureCompression.CorSigUncompressData(signatureBlob, out size));
arrayItem.Sizes.Add(size);
}
}
NuGenHelperFunctions.StepIntPtr(ref signatureBlob, NuGenSignatureCompression.CorSigUncompressData(signatureBlob, out value));
if (value > 0)
{
arrayItem.LoBounds = new List <uint>(Convert.ToInt32(value));
for (int index = 0; index < value; index++)
{
uint loBound;
NuGenHelperFunctions.StepIntPtr(ref signatureBlob, NuGenSignatureCompression.CorSigUncompressData(signatureBlob, out loBound));
arrayItem.LoBounds.Add(loBound);
}
}
result = arrayItem;
break;
case CorElementType.ELEMENT_TYPE_GENERICINST:
NuGenHelperFunctions.StepIntPtr(ref signatureBlob, dataLength);
NuGenTypeSignatureItem genericType = (NuGenTypeSignatureItem)ReadType(ref signatureBlob);
result = genericType;
uint genericParametersCount = 0;
NuGenHelperFunctions.StepIntPtr(ref signatureBlob, NuGenSignatureCompression.CorSigUncompressData(SignatureBlob, out genericParametersCount));
if (genericParametersCount > 0)
{
genericType.GenericParameters = new List <NuGenBaseSignatureItem>();
for (uint genericParametersIndex = 0; genericParametersIndex < genericParametersCount; genericParametersIndex++)
{
genericType.GenericParameters.Add(ReadSignatureItem(ref signatureBlob));
}
}
break;
case CorElementType.ELEMENT_TYPE_FNPTR:
NuGenHelperFunctions.StepIntPtr(ref signatureBlob, dataLength);
NuGenMethodRefSignatureReader signatureReader = new NuGenMethodRefSignatureReader(AllTokens, signatureBlob, SignatureLength);
signatureReader.ReadSignature();
signatureBlob = signatureReader.SignatureBlob;
result = new NuGenFunctionPointerSignatureItem(signatureReader);
break;
case CorElementType.ELEMENT_TYPE_MVAR:
case CorElementType.ELEMENT_TYPE_VAR:
NuGenHelperFunctions.StepIntPtr(ref signatureBlob, dataLength);
byte number = Marshal.ReadByte(signatureBlob);
NuGenHelperFunctions.StepIntPtr(ref signatureBlob, 1);
NuGenVarSignatureItem varSignatureItem = new NuGenVarSignatureItem(number, elementType);
result = varSignatureItem;
if (!HasGenericMethodParameter && varSignatureItem.MethodParameter)
{
HasGenericMethodParameter = true;
}
break;
case CorElementType.ELEMENT_TYPE_MAX:
case CorElementType.ELEMENT_TYPE_R4_HFA:
case CorElementType.ELEMENT_TYPE_R8_HFA:
throw new NotImplementedException(string.Format("Unknown signature element ('{0}').", elementType));
default:
result = ReadType(ref signatureBlob);
break;
}
return(result);
}
