internal bool WalkName(NameExpression node, PythonReference reference)
{
if (_collector.ReadFromExtractedCode(reference.Variable))
{
if ((!_collector._inputCollector._allReads.Contains(reference) &&
!_collector._inputCollector._allWrites.Contains(reference)))
{
// the variable is assigned outside the refactored code
if (node.StartIndex < _collector._target.StartIncludingIndentation)
{
// it's assigned before the extracted code
_collector._inputVars.Add(reference.Variable);
}
else
{
Debug.Assert(node.EndIndex > _collector._target.End);
// it's assigned afterwards, we don't care...
}
}
else if (_collector._readBeforeInitialized.Contains(reference.Variable) &&
_collector._inputCollector._allWrites.Contains(reference) &&
_collector._inLoop)
{
// we read an un-initialized value, so it needs to be passed in. If we
// write to it as well then we need to pass it back out for future calls.
_collector._outputVars.Add(reference.Variable);
}
}
return(false);
}