core::hash::HashStateExTrait

Extension trait for hash state accumulators. This trait adds the update_with method to hash states, allowing you to directly hash values of any type T that implements Hash, rather than having to manually convert values to felt252 first. This provides a more ergonomic API when working with complex types.

Signature

pub trait HashStateExTrait

Trait functions

update_with

Updates the hash state with the given value and returns the updated state.

Signature

fn update_with(self: S, value: T) -> S

Examples

use core::pedersen::PedersenTrait;
use core::hash::HashStateExTrait;

#[derive(Copy, Drop, Hash)]
struct Point { x: u32, y: u32 }

let point = Point { x: 1, y: 2 };
let hash = PedersenTrait::new(0)
    .update_with(point)
    .update_with(42)
    .finalize();