@Nullable
@Override
public List<? extends RatedResolveResult> resolveMember(
@NotNull String name,
@Nullable PyExpression location,
@NotNull AccessDirection direction,
@NotNull PyResolveContext resolveContext) {
final PsiElement resolved = myImportedModule.resolve();
if (resolved != null) {
final PsiFile containingFile = location != null ? location.getContainingFile() : null;
List<PsiElement> elements =
Collections.singletonList(
ResolveImportUtil.resolveChild(resolved, name, containingFile, false, true));
final PyImportElement importElement = myImportedModule.getImportElement();
final PyFile resolvedFile = PyUtil.as(resolved, PyFile.class);
if (location != null
&& importElement != null
&& PyUtil.inSameFile(location, importElement)
&& ResolveImportUtil.getPointInImport(location) == PointInImport.NONE
&& resolved instanceof PsiFileSystemItem
&& (resolvedFile == null
|| !PyUtil.isPackage(resolvedFile)
|| resolvedFile.getElementNamed(name) == null)) {
final List<PsiElement> importedSubmodules =
PyModuleType.collectImportedSubmodules((PsiFileSystemItem) resolved, location);
if (importedSubmodules != null) {
final Set<PsiElement> imported = Sets.newHashSet(importedSubmodules);
elements =
ContainerUtil.filter(
elements,
new Condition<PsiElement>() {
@Override
public boolean value(PsiElement element) {
return imported.contains(element);
}
});
}
}
return ResolveImportUtil.rateResults(elements);
}
return null;
}
@Override
public void visitPyReferenceExpression(final PyReferenceExpression node) {
if (node.getContainingFile() instanceof PyExpressionCodeFragment) {
return;
}
// Ignore global statements arguments
if (PyGlobalStatementNavigator.getByArgument(node) != null) {
return;
}
// Ignore qualifier inspections
if (node.getQualifier() != null) {
return;
}
// Ignore import subelements
if (PsiTreeUtil.getParentOfType(node, PyImportStatementBase.class) != null) {
return;
}
final String name = node.getReferencedName();
if (name == null) {
return;
}
final ScopeOwner owner = ScopeUtil.getDeclarationScopeOwner(node, name);
final Set<ScopeOwner> largeFunctions = getSession().getUserData(LARGE_FUNCTIONS_KEY);
assert largeFunctions != null;
if (owner == null || largeFunctions.contains(owner)) {
return;
}
// Ignore references declared in outer scopes
if (owner != ScopeUtil.getScopeOwner(node)) {
return;
}
final Scope scope = ControlFlowCache.getScope(owner);
// Ignore globals and if scope even doesn't contain such a declaration
if (scope.isGlobal(name) || (!scope.containsDeclaration(name))) {
return;
}
// Start DFA from the assignment statement in case of augmented assignments
final PsiElement anchor;
final PyAugAssignmentStatement augAssignment =
PsiTreeUtil.getParentOfType(node, PyAugAssignmentStatement.class);
if (augAssignment != null && name.equals(augAssignment.getTarget().getName())) {
anchor = augAssignment;
} else {
anchor = node;
}
final ScopeVariable variable;
try {
variable = scope.getDeclaredVariable(anchor, name);
} catch (DFALimitExceededException e) {
largeFunctions.add(owner);
registerLargeFunction(owner);
return;
}
if (variable == null) {
if (!isFirstUnboundRead(node, owner)) {
return;
}
final PsiPolyVariantReference ref = node.getReference(resolveWithoutImplicits());
if (ref == null) {
return;
}
final PsiElement resolved = ref.resolve();
final boolean isBuiltin = PyBuiltinCache.getInstance(node).hasInBuiltins(resolved);
if (owner instanceof PyClass) {
if (isBuiltin || ScopeUtil.getDeclarationScopeOwner(owner, name) != null) {
return;
}
}
if (PyUnreachableCodeInspection.hasAnyInterruptedControlFlowPaths(node)) {
return;
}
if (owner instanceof PyFile) {
if (isBuiltin) {
return;
}
if (resolved != null && !PyUtil.inSameFile(node, resolved)) {
return;
}
registerProblem(node, PyBundle.message("INSP.unbound.name.not.defined", name));
} else {
registerProblem(
node,
PyBundle.message("INSP.unbound.local.variable", node.getName()),
ProblemHighlightType.GENERIC_ERROR_OR_WARNING,
null,
new AddGlobalQuickFix());
}
}
}