Files
pezkuwi-subxt/substrate/srml/support/src/hashable.rs
T
Bastian Köcher f0862606b7 Forward port blake2 storage support (#2360)
* move storage maps to blake2_128 (#2268)

* remove default hash, introduce twox_128 and blake2

* use blake2_128 & create ext_blake2_128

* refactor code

* add benchmark

* factorize generator

* fix

* parameterizable hasher

* some fix

* fix

* fix

* fix

* metadata

* fix

* remove debug print

* map -> blake2_256

* fix test

* fix test

* Apply suggestions from code review

Co-Authored-By: thiolliere <gui.thiolliere@gmail.com>

* impl twox 128 concat (#2353)

* impl twox_128_concat

* comment addressed

* fix

* impl twox_128->64_concat

* fix test

* Fix compilation and cleanup some docs

* Apply suggestions from code review

Co-Authored-By: bkchr <bkchr@users.noreply.github.com>
2019-04-24 11:05:22 +02:00

51 lines
1.6 KiB
Rust

// Copyright 2017-2019 Parity Technologies (UK) Ltd.
// This file is part of Substrate.
// Substrate is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
// Substrate is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License
// along with Substrate. If not, see <http://www.gnu.org/licenses/>.
//! Hashable trait.
use crate::codec::Codec;
use runtime_io::{blake2_128, blake2_256, twox_128, twox_256};
use crate::storage::hashed::generator::StorageHasher;
use crate::Twox64Concat;
use crate::rstd::prelude::Vec;
// This trait must be kept coherent with srml-support-procedural HasherKind usage
pub trait Hashable: Sized {
fn blake2_128(&self) -> [u8; 16];
fn blake2_256(&self) -> [u8; 32];
fn twox_128(&self) -> [u8; 16];
fn twox_256(&self) -> [u8; 32];
fn twox_64_concat(&self) -> Vec<u8>;
}
impl<T: Codec> Hashable for T {
fn blake2_128(&self) -> [u8; 16] {
self.using_encoded(blake2_128)
}
fn blake2_256(&self) -> [u8; 32] {
self.using_encoded(blake2_256)
}
fn twox_128(&self) -> [u8; 16] {
self.using_encoded(twox_128)
}
fn twox_256(&self) -> [u8; 32] {
self.using_encoded(twox_256)
}
fn twox_64_concat(&self) -> Vec<u8> {
self.using_encoded(Twox64Concat::hash)
}
}