Source
Map<LibraryElement, Set<Library>> get libraryElementReexportedBy {
// Table must be reset if we're still in the middle of adding libraries.
if (_libraryElementReexportedBy == null || !allLibrariesAdded) {
_libraryElementReexportedBy = new Map<LibraryElement, Set<Library>>();
for (Library library in libraries) {
_tagReexportsFor(library, library.element);
}
}
return _libraryElementReexportedBy;
}