Crate turbo_tasks_hash 

Hashing and encoding functions for turbopack.

An example use of this module is hashing a file’s content for cache invalidation, and encoding the hash to a base38 or hexadecimal string for use in a file name.

Structs

ShaHasher

Xxh3Hash64Hasher

Xxh3Hash64 hasher.

Xxh3Hash128Hasher

Xxh3Hash128 hasher.

Enums

HashAlgorithm

Constants

BASE38_LEN_64

Number of base38 characters needed to represent a 64-bit value without information loss.

BASE38_LEN_128

Number of base38 characters needed to represent a 128-bit value without information loss.

Traits

DeterministicHash

Signals the implementor can safely be hashed in a replicatable way across platforms and process runs.

DeterministicHasher

Signals the implementor can safely hash in a replicatable way across platforms and process runs.

Functions

deterministic_hash

Hash input with algorithm. If salt is non-empty it is written into the hasher before the content so the two are mixed in a single pass — never as a hash-of-hash composition. An empty salt produces the same result as hashing without a prefix.

encode_base38

Encodes a 64-bit unsigned integer into a fixed-width 13-character base38 string.

encode_base64

Encodes a 64-bit unsigned integer into a base64 string (11 chars, no padding).

encode_base38_128

Encodes a 128-bit unsigned integer into a fixed-width 25-character base38 string.

encode_hex

Encodes a 64-bit unsigned integer into a hex string.

encode_hex_128

Encodes a 128-bit unsigned integer into a hex string.

hash_xxh3_hash64

Hash some content with the Xxh3Hash64 non-cryptographic hash function.

hash_xxh3_hash128

Hash some content with the Xxh3Hash128 non-cryptographic hash function.

Derive Macros

DeterministicHash