Module constant_folding 

Constant folding: Pre-compute common hash results

Caches common hash pre-images for constant folding.

Constants

EMPTY_STRING_DOUBLE_HASH

Pre-computed: Double SHA256 of empty string

EMPTY_STRING_HASH

Pre-computed: SHA256 of empty string

Functions

is_empty_double_hash

Check if input matches empty string double hash (constant folding)

is_empty_hash

Check if input matches empty string hash (constant folding)

is_zero_hash

Constant-fold: Check if hash is zero (all zeros)