99 lines
3.2 KiB
Rust
99 lines
3.2 KiB
Rust
// Copyright 2015, 2016 Parity Technologies (UK) Ltd.
|
|
// This file is part of Parity.
|
|
|
|
// Parity 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.
|
|
|
|
// Parity 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 Parity. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
//! View onto transaction rlp
|
|
use util::{U256, Bytes, Hashable, H256};
|
|
use rlp::{Rlp, View};
|
|
|
|
/// View onto transaction rlp.
|
|
pub struct TransactionView<'a> {
|
|
rlp: Rlp<'a>
|
|
}
|
|
|
|
impl<'a> TransactionView<'a> {
|
|
/// Creates new view onto block from raw bytes.
|
|
pub fn new(bytes: &'a [u8]) -> TransactionView<'a> {
|
|
TransactionView {
|
|
rlp: Rlp::new(bytes)
|
|
}
|
|
}
|
|
|
|
/// Creates new view onto block from rlp.
|
|
pub fn new_from_rlp(rlp: Rlp<'a>) -> TransactionView<'a> {
|
|
TransactionView {
|
|
rlp: rlp
|
|
}
|
|
}
|
|
|
|
/// Return reference to underlaying rlp.
|
|
pub fn rlp(&self) -> &Rlp<'a> {
|
|
&self.rlp
|
|
}
|
|
|
|
/// Get the nonce field of the transaction.
|
|
pub fn nonce(&self) -> U256 { self.rlp.val_at(0) }
|
|
|
|
/// Get the gas_price field of the transaction.
|
|
pub fn gas_price(&self) -> U256 { self.rlp.val_at(1) }
|
|
|
|
/// Get the gas field of the transaction.
|
|
pub fn gas(&self) -> U256 { self.rlp.val_at(2) }
|
|
|
|
/// Get the value field of the transaction.
|
|
pub fn value(&self) -> U256 { self.rlp.val_at(4) }
|
|
|
|
/// Get the data field of the transaction.
|
|
pub fn data(&self) -> Bytes { self.rlp.val_at(5) }
|
|
|
|
/// Get the v field of the transaction.
|
|
pub fn v(&self) -> u8 { let r: u16 = self.rlp.val_at(6); r as u8 }
|
|
|
|
/// Get the r field of the transaction.
|
|
pub fn r(&self) -> U256 { self.rlp.val_at(7) }
|
|
|
|
/// Get the s field of the transaction.
|
|
pub fn s(&self) -> U256 { self.rlp.val_at(8) }
|
|
}
|
|
|
|
impl<'a> Hashable for TransactionView<'a> {
|
|
fn sha3(&self) -> H256 {
|
|
self.rlp.as_raw().sha3()
|
|
}
|
|
}
|
|
|
|
#[cfg(test)]
|
|
mod tests {
|
|
use std::str::FromStr;
|
|
use rustc_serialize::hex::FromHex;
|
|
use util::U256;
|
|
use super::TransactionView;
|
|
|
|
#[test]
|
|
fn test_transaction_view() {
|
|
let rlp = "f87c80018261a894095e7baea6a6c7c4c2dfeb977efac326af552d870a9d00000000000000000000000000000000000000000000000000000000001ba048b55bfa915ac795c431978d8a6a992b628d557da5ff759b307d495a36649353a0efffd310ac743f371de3b9f7f9cb56c0b28ad43601b4ab949f53faa07bd2c804".from_hex().unwrap();
|
|
|
|
let view = TransactionView::new(&rlp);
|
|
assert_eq!(view.nonce(), U256::from(0));
|
|
assert_eq!(view.gas_price(), U256::from(1));
|
|
assert_eq!(view.gas(), U256::from(0x61a8));
|
|
assert_eq!(view.value(), U256::from(0xa));
|
|
assert_eq!(view.data(), "0000000000000000000000000000000000000000000000000000000000".from_hex().unwrap());
|
|
assert_eq!(view.r(), U256::from_str("48b55bfa915ac795c431978d8a6a992b628d557da5ff759b307d495a36649353").unwrap());
|
|
assert_eq!(view.s(), U256::from_str("efffd310ac743f371de3b9f7f9cb56c0b28ad43601b4ab949f53faa07bd2c804").unwrap());
|
|
assert_eq!(view.v(), 0x1b);
|
|
}
|
|
}
|