specFor method
The spec for entry (generated on a miss).
Implementation
ThemeSpec specFor(FeedEntry entry, {bool accessible = false}) {
final key = (entry, accessible);
final hit = _lru.remove(key);
if (hit != null) return _lru[key] = hit;
final spec = entry.resolve(accessible: accessible, generator: generator);
_lru[key] = spec;
while (_lru.length > capacity) {
_lru.remove(_lru.keys.first);
}
return spec;
}