< > BotCompany Repo | #1032548 // createOrAddToSet (defaults to HashSet)

JavaX fragment (include) [tags: use-pretranspiled]

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static <A> Set<A> createOrAddToSet(Set<A> set, A a) {
  if (set == null) set = new Set;
  set.add(a);
  ret set;
}

static <A> Set<A> createOrAddToSet(Set<A> set, A... l) {
  fOr (A a : l) set = createOrAddToSet(set, a);
  ret set;
}

Author comment

Began life as a copy of #1021803

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