@Override
public boolean isAsyncAllowed() {
final LanguageLevel languageLevel = LanguageLevel.forElement(this);
final String functionName = getName();
return languageLevel.isAtLeast(LanguageLevel.PYTHON35)
&& (functionName == null
|| ArrayUtil.contains(
functionName, PyNames.AITER, PyNames.ANEXT, PyNames.AENTER, PyNames.AEXIT)
|| !PyNames.getBuiltinMethods(languageLevel).containsKey(functionName));
}
@Nullable
@Override
public PyType getReturnType(@NotNull TypeEvalContext context, @NotNull TypeEvalContext.Key key) {
for (PyTypeProvider typeProvider : Extensions.getExtensions(PyTypeProvider.EP_NAME)) {
final PyType returnType = typeProvider.getReturnType(this, context);
if (returnType != null) {
returnType.assertValid(typeProvider.toString());
return returnType;
}
}
if (context.maySwitchToAST(this)
&& LanguageLevel.forElement(this).isAtLeast(LanguageLevel.PYTHON30)) {
PyAnnotation anno = getAnnotation();
if (anno != null) {
PyClass pyClass = anno.resolveToClass();
if (pyClass != null) {
return new PyClassTypeImpl(pyClass, false);
}
}
}
final PyType docStringType = getReturnTypeFromDocString();
if (docStringType != null) {
docStringType.assertValid("from docstring");
return docStringType;
}
if (context.allowReturnTypes(this)) {
final Ref<? extends PyType> yieldTypeRef = getYieldStatementType(context);
if (yieldTypeRef != null) {
return yieldTypeRef.get();
}
return getReturnStatementType(context);
}
return null;
}
@Nullable
private PyType getGenericReturnType(
@NotNull TypeEvalContext typeEvalContext, @Nullable PyQualifiedExpression callSite) {
if (typeEvalContext.maySwitchToAST(this)
&& LanguageLevel.forElement(this).isAtLeast(LanguageLevel.PYTHON30)) {
PyAnnotation anno = getAnnotation();
if (anno != null) {
PyClass pyClass = anno.resolveToClass();
if (pyClass != null) {
return new PyClassTypeImpl(pyClass, false);
}
}
}
for (PyTypeProvider typeProvider : Extensions.getExtensions(PyTypeProvider.EP_NAME)) {
final PyType returnType = typeProvider.getReturnType(this, callSite, typeEvalContext);
if (returnType != null) {
returnType.assertValid(typeProvider.toString());
return returnType;
}
}
final PyType docStringType = getReturnTypeFromDocString();
if (docStringType != null) {
docStringType.assertValid("from docstring");
return docStringType;
}
if (typeEvalContext.allowReturnTypes(this)) {
final PyType yieldType = getYieldStatementType(typeEvalContext);
if (yieldType != null) {
return yieldType;
}
return getReturnStatementType(typeEvalContext);
}
return null;
}