internal JReference Reference(string/*!*/ name)
{
if (_references == null) {
_references = new Dictionary<string, List<JReference>>(StringComparer.Ordinal);
}
List<JReference> references;
if (!_references.TryGetValue(name, out references)) {
_references[name] = references = new List<JReference>();
}
var reference = new JReference(name);
references.Add(reference);
return reference;
}
internal bool WalkName(NameExpression node, JReference 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.Start) {
// 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;
}
