// FromImportStatement
public override bool Walk(FromImportStatement node)
{
if (node.Names.Count != 1 || node.Names[0].Name != "*")
{
var variables = new PythonVariable[node.Names.Count];
PythonReference[] references = null;
if (BindReferences)
{
references = new PythonReference[node.Names.Count];
}
for (var i = 0; i < node.Names.Count; i++)
{
variables[i] = DefineName(node.AsNames[i] != null ? node.AsNames[i].Name : node.Names[i].Name);
if (references != null)
{
references[i] = Reference(variables[i].Name);
}
}
node.Variables = variables;
node.AddVariableReference(_ast, BindReferences, references);
}
else
{
Debug.Assert(_currentScope != null);
_currentScope.ContainsImportStar = true;
_currentScope.NeedsLocalsDictionary = true;
_currentScope.HasLateBoundVariableSets = true;
}
return(true);
}
internal PythonReference Reference(string /*!*/ name)
{
if (_references == null)
{
_references = new Dictionary <string, List <PythonReference> >(StringComparer.Ordinal);
}
if (!_references.TryGetValue(name, out var references))
{
_references[name] = references = new List <PythonReference>();
}
var reference = new PythonReference(name);
references.Add(reference);
return(reference);
}
// ImportStatement
public override bool Walk(ImportStatement node)
{
var variables = new PythonVariable[node.Names.Count];
PythonReference[] references = null;
if (BindReferences)
{
references = new PythonReference[variables.Length];
}
for (var i = 0; i < node.Names.Count; i++)
{
string name;
if (node.AsNames[i] != null)
{
name = node.AsNames[i].Name;
}
else if (node.Names[i].Names.Count > 0)
{
name = node.Names[i].Names[0].Name;
}
else
{
name = null;
}
if (name != null)
{
variables[i] = DefineName(name);
if (references != null)
{
references[i] = Reference(name);
}
}
}
node.Variables = variables;
node.AddVariableReference(_ast, BindReferences, references);
return(true);
}