public override bool Walk(FunctionDefinition node)
{
if (node.IsLambda)
{
return(false);
}
var existing = _scope.LookupNameInScopes(node.Name, NameLookupContext.LookupOptions.Local) as AstPythonFunction;
if (existing == null)
{
existing = new AstPythonFunction(_ast, _module, CurrentClass, node, GetLoc(node));
_scope.SetInScope(node.Name, existing);
}
var funcScope = _scope.Clone();
if (CreateBuiltinTypes)
{
funcScope.SuppressBuiltinLookup = true;
}
var funcWalk = new AstAnalysisFunctionWalker(funcScope, node);
_postWalkers.Add(funcWalk);
existing.AddOverload(funcWalk.Overload);
// Do not recurse into functions
return(false);
}
public override bool Walk(FunctionDefinition node)
{
if (node.IsLambda)
{
return(false);
}
var dec = (node.Decorators?.DecoratorsInternal).MaybeEnumerate();
if (dec.OfType <NameExpression>().Any(n => n.Name == "property"))
{
AddProperty(node);
return(false);
}
foreach (var setter in dec.OfType <MemberExpression>().Where(n => n.Name == "setter"))
{
if (setter.Target is NameExpression src)
{
var existingProp = _scope.LookupNameInScopes(src.Name, NameLookupContext.LookupOptions.Local) as AstPythonProperty;
if (existingProp != null)
{
// Setter for an existing property, so don't create a function
existingProp.MakeSettable();
return(false);
}
}
}
var existing = _scope.LookupNameInScopes(node.Name, NameLookupContext.LookupOptions.Local) as AstPythonFunction;
if (existing == null)
{
existing = new AstPythonFunction(_ast, _module, CurrentClass, node, GetLoc(node));
_scope.SetInScope(node.Name, existing);
}
var funcScope = _scope.Clone();
if (CreateBuiltinTypes)
{
funcScope.SuppressBuiltinLookup = true;
}
var funcWalk = new AstAnalysisFunctionWalker(funcScope, node);
_postWalkers.Add(funcWalk);
existing.AddOverload(funcWalk.Overload);
// Do not recurse into functions
return(false);
}
private void AddProperty(FunctionDefinition node)
{
var existing = _scope.LookupNameInScopes(node.Name, NameLookupContext.LookupOptions.Local) as AstPythonProperty;
if (existing == null)
{
existing = new AstPythonProperty(_ast, node, GetLoc(node));
_scope.SetInScope(node.Name, existing);
}
// Treat the rest of the property as a function. "AddOverload" takes the return type
// and sets it as the property type.
var funcScope = _scope.Clone();
if (CreateBuiltinTypes)
{
funcScope.SuppressBuiltinLookup = true;
}
var funcWalk = new AstAnalysisFunctionWalker(funcScope, node);
_postWalkers.Add(funcWalk);
existing.AddOverload(funcWalk.Overload);
}
private void ProcessWalker(AstAnalysisFunctionWalker walker)
{
// Remove walker before processing as to prevent reentrancy.
_functionWalkers.Remove(walker.Target);
walker.Walk();
}
public void Add(AstAnalysisFunctionWalker walker) => _functionWalkers[walker.Target] = walker;
