public PyTypeObject LoadType(IPythonMemoryReader MemoryReader)
{
if (ob_type.HasValue)
{
TypeObject = MemoryReader.TypeFromAddress(ob_type.Value);
}
return(TypeObject);
}
PyTypeObject IPythonMemoryReader.TypeFromAddress(uint TypeObjectAddress)
{
PyTypeObject TypeObject;
if (CacheTypeObject.TryGetValue(TypeObjectAddress, out TypeObject))
{
return(TypeObject);
}
TypeObject = new PyTypeObject(TypeObjectAddress, MemoryReader);
CacheTypeObject[TypeObjectAddress] = TypeObject;
return(TypeObject);
}
/// <summary>
/// enumerates the subset of Addresses that satisfy this condition:
/// +interpreted as the Address of a Python Type Object, the tp_name of this Object Equals <paramref name="tp_name"/>
/// </summary>
/// <param name="TypeObjectAddresses"></param>
/// <param name="MemoryReader"></param>
/// <param name="tp_name"></param>
/// <returns></returns>
static public IEnumerable <PyTypeObject> TypeObjectAddressesFilterByTpName(
IEnumerable <UInt32> TypeObjectAddresses,
IMemoryReader MemoryReader,
string tp_name)
{
if (null == TypeObjectAddresses || null == MemoryReader)
{
yield break;
}
foreach (var CandidateTypeAddress in TypeObjectAddresses)
{
var PyType = new PyTypeObject(CandidateTypeAddress, MemoryReader);
if (!string.Equals(PyType.tp_name_Val, tp_name))
{
continue;
}
yield return(PyType);
}
}
/// <summary>
/// the enumerated set contains all addresses of Python Objects of the type with the given <paramref name="tp_name"/>.
///
/// the addresses are only filtered for appropriate ob_type.
/// </summary>
/// <param name="MemoryReader"></param>
/// <param name="tp_name"></param>
/// <returns></returns>
static public IEnumerable <UInt32> EnumeratePossibleAddressesOfInstancesOfPythonTypeFilteredByObType(
IMemoryReader MemoryReader,
string tp_name)
{
var CandidatesTypeObjectType = PyTypeObject.FindCandidatesTypeObjectTypeAddress(MemoryReader);
var TypeObjectType = PyTypeObject.TypeObjectAddressesFilterByTpName(CandidatesTypeObjectType, MemoryReader, "type").FirstOrDefault();
if (null == TypeObjectType)
{
yield break;
}
// finds candidate Addresses for Objects of type "type" with only requiring them to have a appropriate value for ob_type.
var TypeCandidateAddressesPlus4 =
MemoryReader.AddressesHoldingValue32Aligned32((UInt32)TypeObjectType.BaseAddress, 0, Int32.MaxValue)
.ToArray();
var TypeCandidateAddresses =
TypeCandidateAddressesPlus4
.Select((Address) => (UInt32)(Address - 4))
.ToArray();
var TypeObjectsWithProperName =
PyTypeObject.TypeObjectAddressesFilterByTpName(TypeCandidateAddresses, MemoryReader, tp_name)
.ToArray();
foreach (var TypeObject in TypeObjectsWithProperName)
{
// finds candidate Addresses for Objects of type tp_name with only requiring them to have a appropriate value for ob_type.
foreach (var CandidateForObjectOfTypeAddressPlus4 in MemoryReader.AddressesHoldingValue32Aligned32((UInt32)TypeObject.BaseAddress, 0, Int32.MaxValue))
{
yield return((UInt32)(CandidateForObjectOfTypeAddressPlus4 - 4));
}
}
}