3 replies

Adding Data Type ID to Hash for Collision Reduction

Would it maybe be advisable (for further reducing likeliness of unintended collisions) to add the data type id (e.g. using our type id symbols) to every hash we produce from

Hash

Hash

implementing data types?

  [Hash.symbol](this: BigDecimal): number {
    const normalized = normalize(this)
    return pipe(
      Hash.hash(TypeId),
      Hash.combine(Hash.hash(normalized.value)),
      Hash.combine(Hash.number(normalized.scale))
    )
  },

  [Hash.symbol](this: BigDecimal): number {
    const normalized = normalize(this)
    return pipe(
      Hash.hash(TypeId),
      Hash.combine(Hash.hash(normalized.value)),
      Hash.combine(Hash.number(normalized.scale))
    )
  },

Effect Community•3y ago•

3 replies

fubhy

Adding Data Type ID to Hash for Collision Reduction

Would it maybe be advisable (for further reducing likeliness of unintended collisions) to add the data type id (e.g. using our type id symbols) to every hash we produce from

Hash

Hash

implementing data types?

  [Hash.symbol](this: BigDecimal): number {
    const normalized = normalize(this)
    return pipe(
      Hash.hash(TypeId),
      Hash.combine(Hash.hash(normalized.value)),
      Hash.combine(Hash.number(normalized.scale))
    )
  },

  [Hash.symbol](this: BigDecimal): number {
    const normalized = normalize(this)
    return pipe(
      Hash.hash(TypeId),
      Hash.combine(Hash.hash(normalized.value)),
      Hash.combine(Hash.number(normalized.scale))
    )
  },

Adding Data Type ID to Hash for Collision Reduction

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