@Nullable
private PyType resolveQualifierType(
@NotNull List<Token<PyElementType>> tokens,
@NotNull PyFile file,
@NotNull TypeEvalContext context,
@NotNull Map<TextRange, PyType> types,
@NotNull Map<PyType, TextRange> fullRanges,
@NotNull Map<PyType, PyImportElement> imports) {
if (tokens.isEmpty()) {
return null;
}
final Token<PyElementType> firstToken = tokens.get(0);
final String firstText = firstToken.getText().toString();
final TextRange firstRange = firstToken.getRange();
final List<RatedResolveResult> resolveResults = file.multiResolveName(firstText);
if (resolveResults.isEmpty()) {
return getImplicitlyResolvedType(tokens, context, types, fullRanges, firstRange);
}
final List<PyType> members = Lists.newArrayList();
for (RatedResolveResult result : resolveResults) {
final PsiElement resolved = result.getElement();
PyType type = null;
if (resolved instanceof PyTargetExpression) {
type =
PyTypingTypeProvider.getTypeFromTargetExpression(
(PyTargetExpression) resolved, context);
}
if (type == null && resolved instanceof PyTypedElement) {
type = context.getType((PyTypedElement) resolved);
}
if (type != null) {
if (!allowResolveToType(type)) {
continue;
}
if (type instanceof PyClassLikeType) {
type = ((PyClassLikeType) type).toInstance();
}
types.put(firstRange, type);
fullRanges.put(type, firstRange);
for (PyFromImportStatement fromImportStatement : file.getFromImports()) {
for (PyImportElement importElement : fromImportStatement.getImportElements()) {
if (firstText.equals(importElement.getVisibleName())) {
imports.put(type, importElement);
}
}
}
for (PyImportElement importElement : file.getImportTargets()) {
if (firstText.equals(importElement.getVisibleName())) {
imports.put(type, importElement);
}
}
}
members.add(type);
}
if (!members.isEmpty()) {
tokens.remove(0);
}
return PyUnionType.union(members);
}
public static boolean isAbsoluteImportEnabledFor(PsiElement foothold) {
if (foothold != null) {
PsiFile file = foothold.getContainingFile();
if (file instanceof PyFile) {
final PyFile pyFile = (PyFile) file;
if (pyFile.getLanguageLevel().isPy3K()) {
return true;
}
return pyFile.hasImportFromFuture(ABSOLUTE_IMPORT);
}
}
// if the relevant import is below the foothold, it is either legal or we've detected the
// offending statement already
return false;
}
@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;
}
private void addModulePath(PyFile followed) {
// what to prepend to a module description?
final VirtualFile file = followed.getVirtualFile();
if (file == null) {
myProlog.addWith(TagSmall, $(PyBundle.message("QDOC.module.path.unknown")));
} else {
final String path = file.getPath();
RootFinder finder = new RootFinder(path);
RootVisitorHost.visitRoots(followed, finder);
final String rootPath = finder.getResult();
if (rootPath != null) {
String afterPart = path.substring(rootPath.length());
myProlog.addWith(TagSmall, $(rootPath).addWith(TagBold, $(afterPart)));
} else {
myProlog.addWith(TagSmall, $(path));
}
}
}