private IMember GetValueFromIndex(IndexExpression expr, LookupOptions options)
{
if (expr == null || expr.Target == null)
{
return(null);
}
if (expr.Index is SliceExpression || expr.Index is TupleExpression)
{
// When slicing, assume result is the same type
return(GetValueFromExpression(expr.Target));
}
var type = GetTypeFromValue(GetValueFromExpression(expr.Target));
if (type != null && type != _unknownType)
{
if (AstTypingModule.IsTypingType(type))
{
return(type);
}
switch (type.TypeId)
{
case BuiltinTypeId.Bytes:
if (Ast.LanguageVersion.Is3x())
{
return(new AstPythonConstant(Interpreter.GetBuiltinType(BuiltinTypeId.Int), GetLoc(expr)));
}
else
{
return(new AstPythonConstant(Interpreter.GetBuiltinType(BuiltinTypeId.Bytes), GetLoc(expr)));
}
case BuiltinTypeId.Unicode:
return(new AstPythonConstant(Interpreter.GetBuiltinType(BuiltinTypeId.Unicode), GetLoc(expr)));
}
if (type.MemberType == PythonMemberType.Class)
{
// When indexing into a type, assume result is the type
// TODO: Proper generic handling
return(type);
}
_log?.Log(TraceLevel.Verbose, "UnknownIndex", type.TypeId, expr.ToCodeString(Ast, CodeFormattingOptions.Traditional).Trim());
}
else
{
_log?.Log(TraceLevel.Verbose, "UnknownIndex", expr.ToCodeString(Ast, CodeFormattingOptions.Traditional).Trim());
}
return(new AstPythonConstant(_unknownType, GetLoc(expr)));
}
private IMember GetValueFromIndex(IndexExpression expr, LookupOptions options)
{
if (expr == null || expr.Target == null)
{
return(null);
}
if (expr.Index is SliceExpression || expr.Index is TupleExpression)
{
// When slicing, assume result is the same type
return(GetValueFromExpression(expr.Target));
}
var type = GetTypeFromLiteral(expr.Target);
if (type != null)
{
switch (type.TypeId)
{
case BuiltinTypeId.Bytes:
if (Ast.LanguageVersion.Is3x())
{
return(new AstPythonConstant(Interpreter.GetBuiltinType(BuiltinTypeId.Int), GetLoc(expr)));
}
else
{
return(new AstPythonConstant(Interpreter.GetBuiltinType(BuiltinTypeId.Bytes), GetLoc(expr)));
}
case BuiltinTypeId.Unicode:
return(new AstPythonConstant(Interpreter.GetBuiltinType(BuiltinTypeId.Unicode), GetLoc(expr)));
}
}
_log?.Log(TraceLevel.Verbose, "UnknownIndex", expr.ToCodeString(Ast).Trim());
return(new AstPythonConstant(Interpreter.GetBuiltinType(BuiltinTypeId.Unknown), GetLoc(expr)));
}
