/**
* Add import directive corresponding to a type to file when it is needed.
*
* @param type type to import
* @param file file where import directive should be added
*/
public static void addImportDirectivesIfNeeded(@NotNull JetType type, @NotNull JetFile file) {
if (JetPluginUtil.checkTypeIsStandard(type, file.getProject())
|| ErrorUtils.isErrorType(type)) {
return;
}
BindingContext bindingContext = getContextForSingleFile(file);
PsiElement element =
BindingContextUtils.descriptorToDeclaration(
bindingContext, type.getMemberScope().getContainingDeclaration());
if (element != null
&& element.getContainingFile()
== file) { // declaration is in the same file, so no import is needed
return;
}
for (ClassDescriptor clazz : TypeUtils.getAllClassDescriptors(type)) {
addImportDirective(DescriptorUtils.getFQName(getTopLevelClass(clazz)).toSafe(), file);
}
}
