public PyType getType(@NotNull TypeEvalContext context, @NotNull TypeEvalContext.Key key) { if (!TypeEvalStack.mayEvaluate(this)) { return null; } try { final boolean qualified = isQualified(); if (!qualified) { String name = getReferencedName(); if (PyNames.NONE.equals(name)) { return PyNoneType.INSTANCE; } } PyType type = getTypeFromProviders(context); if (type != null) { return type; } if (qualified) { PyType maybe_type = PyUtil.getSpecialAttributeType(this, context); if (maybe_type != null) return maybe_type; Ref<PyType> typeOfProperty = getTypeOfProperty(context); if (typeOfProperty != null) { return typeOfProperty.get(); } } final PsiPolyVariantReference reference = getReference(PyResolveContext.noImplicits().withTypeEvalContext(context)); final List<PsiElement> targets = PyUtil.multiResolveTopPriority(reference); if (targets.isEmpty()) { return getQualifiedReferenceTypeByControlFlow(context); } final List<PyType> members = new ArrayList<PyType>(); for (PsiElement target : targets) { if (target == this || target == null) { continue; } if (!target.isValid()) { LOG.error( "Reference " + this + " resolved to invalid element " + target + " (text=" + target.getText() + ")"); continue; } members.add(getTypeFromTarget(target, context, this)); } return PyUnionType.union(members); } finally { TypeEvalStack.evaluated(this); } }