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// Copyright 2017 Parity Technologies (UK) Ltd.
// This file is part of Polkadot.
// Polkadot 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.
// Polkadot 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 Polkadot. If not, see <http://www.gnu.org/licenses/>.
//! The Polkadot runtime. This can be compiled with #[no_std], ready for Wasm.
#![cfg_attr(not(feature = "std"), no_std)]
extern crate substrate_runtime_std as rstd;
#[macro_use]
extern crate substrate_runtime_io as runtime_io;
#[cfg(feature = "std")]
extern crate rustc_hex;
extern crate substrate_codec as codec;
extern crate substrate_primitives;
extern crate polkadot_primitives;
#[cfg(test)]
#[macro_use]
extern crate hex_literal;
#[macro_use]
pub mod support;
pub mod runtime;
asynchronous rob
committed
pub mod api;
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#[cfg(feature = "std")]
pub mod genesismap;
/// Type definitions and helpers for transactions.
pub mod transaction {
use rstd::ops;
use polkadot_primitives::Signature;
pub use polkadot_primitives::{Transaction, UncheckedTransaction};
/// A type-safe indicator that a transaction has been checked.
#[derive(PartialEq, Eq, Clone)]
#[cfg_attr(feature = "std", derive(Debug))]
pub struct CheckedTransaction(UncheckedTransaction);
impl CheckedTransaction {
/// Get a reference to the checked signature.
pub fn signature(&self) -> &Signature {
&self.0.signature
}
}
impl ops::Deref for CheckedTransaction {
type Target = Transaction;
fn deref(&self) -> &Transaction {
&self.0.transaction
}
}
/// Check the signature on a transaction.
///
/// On failure, return the transaction back.
pub fn check(tx: UncheckedTransaction) -> Result<CheckedTransaction, UncheckedTransaction> {
let msg = ::codec::Slicable::to_vec(&tx.transaction);
if ::runtime_io::ed25519_verify(&tx.signature.0, &msg, &tx.transaction.signed) {
Ok(CheckedTransaction(tx))
} else {
Err(tx)
}
}
}