@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);
}
@NotNull
public static List<PsiElement> resolveFromImportStatementSource(
@NotNull PyFromImportStatement fromImportStatement, @Nullable QualifiedName qName) {
final boolean absoluteImportEnabled = isAbsoluteImportEnabledFor(fromImportStatement);
final PsiFile file = fromImportStatement.getContainingFile();
return resolveModule(
qName, file, absoluteImportEnabled, fromImportStatement.getRelativeLevel());
}
@NotNull
public static List<RatedResolveResult> resolveNameInFromImport(
PyFromImportStatement importStatement, @NotNull QualifiedName qName) {
PsiFile file = importStatement.getContainingFile().getOriginalFile();
String name = qName.getComponents().get(0);
final List<PsiElement> candidates = importStatement.resolveImportSourceCandidates();
List<PsiElement> resultList = new ArrayList<PsiElement>();
for (PsiElement candidate : candidates) {
if (!candidate.isValid()) {
throw new PsiInvalidElementAccessException(
candidate,
"Got an invalid candidate from resolveImportSourceCandidates(): "
+ candidate.getClass());
}
if (candidate instanceof PsiDirectory) {
candidate = PyUtil.getPackageElement((PsiDirectory) candidate, importStatement);
}
List<RatedResolveResult> results = resolveChildren(candidate, name, file, false, true);
if (!results.isEmpty()) {
for (RatedResolveResult result : results) {
final PsiElement element = result.getElement();
if (element != null) {
if (!element.isValid()) {
throw new PsiInvalidElementAccessException(
element, "Got an invalid candidate from resolveChild(): " + element.getClass());
}
resultList.add(element);
}
}
}
}
if (!resultList.isEmpty()) {
return rateResults(resultList);
}
return Collections.emptyList();
}
@NotNull
public String getPresentableText(@NotNull String myName) {
final StringBuilder sb = new StringBuilder(getQualifiedName(myName, myPath, myImportElement));
PsiElement parent = null;
if (myImportElement != null) {
parent = myImportElement.getParent();
}
if (myImportable instanceof PyFunction) {
sb.append(((PyFunction) myImportable).getParameterList().getPresentableText(false));
} else if (myImportable instanceof PyClass) {
final List<String> supers =
ContainerUtil.mapNotNull(
((PyClass) myImportable).getSuperClasses(),
new Function<PyClass, String>() {
@Override
public String fun(PyClass cls) {
return PyUtil.isObjectClass(cls) ? null : cls.getName();
}
});
if (!supers.isEmpty()) {
sb.append("(");
StringUtil.join(supers, ", ", sb);
sb.append(")");
}
}
if (parent instanceof PyFromImportStatement) {
sb.append(" from ");
final PyFromImportStatement fromImportStatement = (PyFromImportStatement) parent;
sb.append(StringUtil.repeat(".", fromImportStatement.getRelativeLevel()));
final PyReferenceExpression source = fromImportStatement.getImportSource();
if (source != null) {
sb.append(source.getReferencedName());
}
}
return sb.toString();
}