Crate waddling_errors_hash 

Hash computation for waddling-errors diagnostic codes

This crate provides hash computation utilities that can be used both at compile time (in proc macros) and at runtime. The hash function is designed to be:

• Deterministic: Same input always produces same hash
• Compact: 5-character base62 encoding (916M combinations)
• Fast: Uses ahash for performance
• Safe: Alphanumeric only, safe for all logging systems
• no_std compatible: Works in constrained environments

Usage in Proc Macros (Compile Time)

use waddling_errors_hash::compute_hash;

let hash = compute_hash("E.AUTH.TOKEN.001");
// Embed hash as a compile-time constant

Usage at Runtime

use waddling_errors_hash::compute_hash;

fn main() {
    let code = "E.AUTH.TOKEN.001";
    let hash = compute_hash(code);
    println!("Hash: {}", hash); // e.g., "aB3xY"
}

Functions

compute_hash

Compute a 5-character base62 hash from an input string

verify_hash

Verify that a hash was computed from the given input