Hash Module

Native implementations of hash : Hash a => a -> Int for all primitive types, plus the mulWrap helper used by deriving (Hash) enum bodies.

Functions

`Hash.hashBool`

Bool -> Int

Hash a Bool value: True hashes to 1, False to 0.

`Hash.hashChar`

Char -> Int

Hash a Char value using FNV-1a on its 4-byte UTF-32 (little-endian) encoding.

`Hash.hashDecimal`

Decimal -> Int

Hash a Decimal value by normalizing it and hashing its canonical byte representation.

`Hash.hashFloat`

Float -> Int

Hash a Float value using FNV-1a on its IEEE 754 bit pattern.

Notes: NaN values are canonicalized to u64::MAX before hashing so that all NaN bit patterns produce the same hash, preserving the invariant that equal values hash equally.

`Hash.hashInt`

Int -> Int

Hash an Int value using FNV-1a on its 8-byte little-endian encoding.

`Hash.hashString`

String -> Int

Hash a String value using FNV-1a on its UTF-8 bytes.

`Hash.hashSymbol`

Symbol -> Int

Hash a Symbol value using FNV-1a on its UTF-8 bytes.

`Hash.mulWrap`

Int -> Int -> Int

Multiply two Int values with wrapping semantics (no overflow error).

Notes: Used internally by deriving (Hash) enum bodies. The VM's * operator uses checked_mul and raises IntegerOverflow on overflow; wrapping arithmetic is correct for hash mixing.