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A pluggable hash function.

interface val HashFunction[A: A]

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Data structures create instances internally. Use a primitive if possible.

new val create()
: HashFunction[A] val^

• HashFunction[A] val^

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Calculate the hash of some type. This is an alias of the type parameter to allow data structures to hash things without consuming them.

fun box hash(
  x: box->A!)
: USize val

• x: box->A!

• USize val

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Determine equality between two keys with the same hash. This is done with viewpoint adapted aliases to allow data structures to determine equality in a box fun without consuming keys.

fun box eq(
  x: box->A!,
  y: box->A!)
: Bool val

• x: box->A!
• y: box->A!

• Bool val