decrementHash method

int decrementHash(
  1. int hash
)

Decrements the count for hash.

Implementation

int decrementHash(int hash) {
  if (hashes.containsKey(hash)) {
    hashes[hash] = hashes[hash]! - 1;
    int hits = hashes[hash]!;
    if (hashes[hash]! < 1) {
      hashes.remove(hash);
      hits = 0;
    }
    return hits;
  } else {
    return 0;
  }
}