private static long HashModuleFileSizes(IImportChildrenSource source)
{
var hash = 0L;
var names = source.GetChildrenNames();
foreach (var name in names)
{
if (source.TryGetChildImport(name, out var child))
{
if (child is ModuleImport moduleImport)
{
if (moduleImport.ModuleFileSize == 0)
{
continue; // Typically test case, memory-only module.
}
hash = unchecked (hash * 31 ^ moduleImport.ModuleFileSize);
}
if (child is IImportChildrenSource childSource)
{
hash = unchecked (hash * 31 ^ HashModuleFileSizes(childSource));
}
}
}
return(hash);
}
private IMember GetValueFromImports(PythonVariableModule parentModule, IImportChildrenSource childrenSource, string memberName)
{
if (childrenSource == null || !childrenSource.TryGetChildImport(memberName, out var childImport))
{
return(Interpreter.UnknownType);
}
switch (childImport)
{
case ModuleImport moduleImport:
var module = ModuleResolution.GetOrLoadModule(moduleImport.FullName);
return(module != null?GetOrCreateVariableModule(module, parentModule, moduleImport.Name) : Interpreter.UnknownType);
case ImplicitPackageImport packageImport:
return(GetOrCreateVariableModule(packageImport.FullName, parentModule, memberName));
default:
return(Interpreter.UnknownType);
}
}
private static long HashModuleFileSizes(IImportChildrenSource source)
{
var hash = 0L;
var names = source.GetChildrenNames();
foreach (var name in names)
{
if (source.TryGetChildImport(name, out var child))
{
if (child is ModuleImport moduleImport)
{
hash = unchecked (hash * 31 ^ moduleImport.ModuleFileSize);
}
if (child is IImportChildrenSource childSource)
{
hash = unchecked (hash * 31 ^ HashModuleFileSizes(childSource));
}
}
}
return(hash);
}
public bool TryGetChildImport(string name, out IImportSearchResult child) => _childrenSource.TryGetChildImport(name, out child);