private IAnalysisSet NewType_Call(Node node, AnalysisUnit unit, IAnalysisSet[] args, NameExpression[] keywordArgNames)
{
return(unit.InterpreterScope.GetOrMakeNodeValue(node, Analyzer.NodeValueKind.TypeAnnotation, n => {
var name = PythonAnalyzer.GetArg(args, keywordArgNames, null, 0).GetConstantValueAsString().FirstOrDefault(x => !string.IsNullOrEmpty(x));
var baseType = PythonAnalyzer.GetArg(args, keywordArgNames, null, 1) ?? unit.State.ClassInfos[BuiltinTypeId.Object].Instance;
if (string.IsNullOrEmpty(name))
{
return baseType;
}
var instPi = new ProtocolInfo(unit.ProjectEntry, unit.State);
var np = new NameProtocol(instPi, name, memberType: PythonMemberType.Instance);
var cls = new NamespaceProtocol(instPi, "__class__");
instPi.AddProtocol(np);
instPi.AddProtocol(cls);
var pi = new ProtocolInfo(unit.ProjectEntry, unit.State);
pi.AddProtocol(new NameProtocol(pi, name));
pi.AddProtocol(new InstanceProtocol(pi, Array.Empty <IAnalysisSet>(), instPi));
pi.AddReference(n, unit);
cls.SetMember(n, unit, null, pi);
return pi;
}));
}
private IAnalysisSet MakeTuple(params IAnalysisSet[] types)
{
var p = new ProtocolInfo(Entry, State);
var np = new NameProtocol(p, Types[BuiltinTypeId.Tuple]);
var tp = new TupleProtocol(p, types);
np.ExtendDescription(tp.GetRichDescription());
p.AddProtocol(np);
p.AddProtocol(tp);
return(p);
}
private IAnalysisSet MakeView(IPythonType type, IAnalysisSet values)
{
var pi = new ProtocolInfo(DeclaringModule, Self.State);
var np = new NameProtocol(pi, type);
var ip = new IterableProtocol(pi, values);
np.ExtendDescription(ip.GetRichDescription());
pi.AddProtocol(np);
pi.AddProtocol(ip);
return(pi);
}
private IAnalysisSet NewType_Call(Node node, AnalysisUnit unit, IAnalysisSet[] args, NameExpression[] keywordArgNames)
{
return(unit.InterpreterScope.GetOrMakeNodeValue(node, Analyzer.NodeValueKind.TypeAnnotation, n => {
if (args.Length == 0)
{
return AnalysisSet.Empty; // No arguments given
}
var arg = PythonAnalyzer.GetArg(args, keywordArgNames, null, 0);
var name = arg.GetConstantValueAsString().FirstOrDefault(x => !string.IsNullOrEmpty(x));
var baseTypeSet = PythonAnalyzer.GetArg(args, keywordArgNames, null, 1) ?? unit.State.ClassInfos[BuiltinTypeId.Object].Instance;
if (string.IsNullOrEmpty(name))
{
return baseTypeSet;
}
var instPi = new ProtocolInfo(unit.ProjectEntry, unit.State);
var np = new NameProtocol(instPi, name, memberType: PythonMemberType.Instance, typeId: BuiltinTypeId.Type);
var cls = new NamespaceProtocol(instPi, "__class__"); // Declares class type
instPi.AddProtocol(np);
instPi.AddProtocol(cls);
// Add base delegate so we can see actual type members
var baseType = baseTypeSet.FirstOrDefault();
if (baseType != null)
{
var bt = new TypeDelegateProtocol(instPi, baseType);
instPi.AddProtocol(bt);
}
var pi = new ProtocolInfo(unit.ProjectEntry, unit.State);
pi.AddProtocol(new NameProtocol(pi, name, memberType: PythonMemberType.Instance, typeId: BuiltinTypeId.Type));
pi.AddProtocol(new InstanceProtocol(pi, Array.Empty <IAnalysisSet>(), instPi));
pi.AddReference(n, unit);
cls.SetMember(n, unit, null, pi);
return pi;
}));
}
private IAnalysisSet CreateNamedTuple(Node node, AnalysisUnit unit, IAnalysisSet namedTupleName, IAnalysisSet namedTupleArgs)
{
var args = namedTupleArgs == null ? null : TypingTypeInfo.ToTypeList(namedTupleArgs);
var res = new ProtocolInfo(unit.ProjectEntry, unit.State);
string name;
var description = new List <KeyValuePair <string, string> >();
if (args != null && args.Any())
{
var tupleItem = new List <IAnalysisSet>();
foreach (var a in args)
{
// each arg is going to be either a union containing a string literal and type,
// or a list with string literal and type.
IAnalysisSet nameSet = a, valueSet = a;
if (a is TypingTypeInfo tti)
{
var list = tti.ToTypeList();
if (list != null && list.Count >= 2)
{
nameSet = list[0];
valueSet = AnalysisSet.UnionAll(list.Skip(1));
}
}
if (!nameSet.Split(out IReadOnlyList <ConstantInfo> names, out var rest))
{
names = a.OfType <ConstantInfo>().ToArray();
}
name = names.Select(n => n.GetConstantValueAsString()).FirstOrDefault(n => !string.IsNullOrEmpty(n)) ?? "unnamed";
var p = new NamespaceProtocol(res, name);
var value = ToInstance(valueSet);
p.SetMember(node, unit, name, value);
tupleItem.Add(value);
res.AddProtocol(p);
if (description.Any())
{
description.Add(new KeyValuePair <string, string>(WellKnownRichDescriptionKinds.Comma, ", "));
}
description.AddRange(p.GetRichDescription());
}
res.AddProtocol(new TupleProtocol(res, tupleItem));
}
name = namedTupleName?.GetConstantValueAsString().FirstOrDefault() ?? "tuple";
var np = new NameProtocol(res, name);
if (description.Any())
{
np.ExtendDescription(new KeyValuePair <string, string>(WellKnownRichDescriptionKinds.Misc, "("));
np.ExtendDescription(description);
np.ExtendDescription(new KeyValuePair <string, string>(WellKnownRichDescriptionKinds.Misc, ")"));
}
res.AddProtocol(np);
return(res);
}
/// <summary>
/// Given type name and type arguments provides value
/// based on the actual type to use in analysis.
/// </summary>
public IAnalysisSet Finalize(string name, IReadOnlyList <IAnalysisSet> args)
{
if (string.IsNullOrEmpty(name) || args == null || args.Count == 0)
{
return(null);
}
NameProtocol np;
IPythonType realType;
IAnalysisSet keyTypes, valueTypes;
switch (name)
{
case "Union":
return(AnalysisSet.UnionAll(args.Select(a => Finalize(a))));
case "Optional":
return(Finalize(args[0]).Add(NoneType));
case "Tuple":
if (!args.SelectMany(a => a).Any(a => a.TypeId == BuiltinTypeId.Ellipsis))
{
return(MakeTuple(args.Select(ToInstance).ToArray()));
}
goto case "List";
case "List":
case "Container":
case "MutableSequence":
case "Sequence":
case "MutableSet":
case "Set":
case "FrozenSet":
case "KeysView":
case "ValuesView":
case "ItemsView":
if (GetSequenceTypes(name, args, out realType, out keyTypes, out valueTypes))
{
var p = new ProtocolInfo(Entry, State);
p.AddReference(_node, _unit);
np = realType == null ? new NameProtocol(p, name) : new NameProtocol(p, realType);
np.ExtendDescription(valueTypes.GetRichDescriptions(unionPrefix: "[", unionSuffix: "]", alwaysUsePrefixSuffix: true));
p.AddProtocol(np);
var actualType = State.GetAnalysisValueFromObjects(realType);
p.AddProtocol(new ListProtocol(p, actualType, valueTypes));
if (keyTypes != null)
{
p.AddProtocol(new GetItemProtocol(p, keyTypes, valueTypes));
}
return(p);
}
break;
case "Mapping":
case "MappingView":
case "MutableMapping":
case "Dict":
if (GetSequenceTypes(name, args, out realType, out keyTypes, out valueTypes))
{
var p = new ProtocolInfo(Entry, State);
p.AddReference(_node, _unit);
np = realType == null ? new NameProtocol(p, name) : new NameProtocol(p, realType);
np.ExtendDescription(new KeyValuePair <string, string>(WellKnownRichDescriptionKinds.Misc, "["));
np.ExtendDescription(keyTypes.GetRichDescriptions(unionPrefix: "[", unionSuffix: "]", defaultIfEmpty: "Any"));
np.ExtendDescription(new KeyValuePair <string, string>(WellKnownRichDescriptionKinds.Comma, ", "));
np.ExtendDescription(valueTypes.GetRichDescriptions(unionPrefix: "[", unionSuffix: "]", defaultIfEmpty: "Any"));
np.ExtendDescription(new KeyValuePair <string, string>(WellKnownRichDescriptionKinds.Misc, "]"));
p.AddProtocol(np);
var actualType = State.GetAnalysisValueFromObjects(realType);
p.AddProtocol(new DictProtocol(p, actualType, keyTypes, valueTypes, MakeTuple(keyTypes, valueTypes)));
return(p);
}
break;
case "Callable":
if (args.Count > 0)
{
var p = new ProtocolInfo(Entry, State);
p.AddReference(_node, _unit);
np = new NameProtocol(p, Types[BuiltinTypeId.Function]);
var call = new CallableProtocol(
p,
null,
GetTypeList(args[0]).Select(ToInstance).ToArray(),
ToInstance(args.ElementAtOrDefault(1) ?? AnalysisSet.Empty)
);
np.ExtendDescription(call.GetRichDescription());
p.AddProtocol(np);
p.AddProtocol(call);
return(p);
}
break;
case "Iterable":
if (args.Count > 0)
{
var p = new ProtocolInfo(Entry, State);
p.AddReference(_node, _unit);
np = new NameProtocol(p, "iterable", memberType: PythonMemberType.Class);
var ip = new IterableProtocol(p, AnalysisSet.UnionAll(args.Select(ToInstance)));
np.ExtendDescription(ip.GetRichDescription());
p.AddProtocol(np);
p.AddProtocol(ip);
return(p);
}
break;
case "Iterator":
if (args.Count > 0)
{
var p = new ProtocolInfo(Entry, State);
p.AddReference(_node, _unit);
np = new NameProtocol(p, "iterator", memberType: PythonMemberType.Class);
var ip = new IteratorProtocol(p, AnalysisSet.UnionAll(args.Select(ToInstance)));
np.ExtendDescription(ip.GetRichDescription());
p.AddProtocol(np);
p.AddProtocol(ip);
return(p);
}
break;
case "Generator":
if (args.Count > 0)
{
var p = new ProtocolInfo(Entry, State);
p.AddReference(_node, _unit);
np = new NameProtocol(p, Types[BuiltinTypeId.Generator]);
var yielded = ToInstance(args[0]);
var sent = args.Count > 1 ? ToInstance(args[1]) : AnalysisSet.Empty;
var returned = args.Count > 2 ? ToInstance(args[2]) : AnalysisSet.Empty;
var gp = new GeneratorProtocol(p, yielded, sent, returned);
np.ExtendDescription(gp.GetRichDescription());
p.AddProtocol(np);
p.AddProtocol(gp);
return(p);
}
break;
case "NamedTuple":
return(CreateNamedTuple(_node, _unit, args.ElementAtOrDefault(0), args.ElementAtOrDefault(1)));
case "Type":
// Return class rather than instance
return(args.Count > 0 ? Finalize(args[0]) : AnalysisSet.Empty);
case " List":
return(AnalysisSet.UnionAll(args.Select(ToInstance)));
}
return(null);
}