openethereum/crates/ethcore/types/src/transaction/transaction_id.rs

130 lines
3.9 KiB
Rust

// Copyright 2020-2020 Parity Technologies (UK) Ltd.
// This file is part of OpenEthereum.
// OpenEthereum 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.
// OpenEthereum 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 OpenEthereum. If not, see <http://www.gnu.org/licenses/>.
//! Transaction Id.
use ethereum_types::U64;
use serde_repr::*;
#[derive(Serialize_repr, Eq, Hash, Deserialize_repr, Debug, Copy, Clone, PartialEq)]
#[repr(u8)]
pub enum TypedTxId {
EIP1559Transaction = 0x02,
AccessList = 0x01,
Legacy = 0x00,
}
impl TypedTxId {
// used in json tets
pub fn from_u8_id(n: u8) -> Option<Self> {
match n {
0 => Some(Self::Legacy),
1 => Some(Self::AccessList),
2 => Some(Self::EIP1559Transaction),
_ => None,
}
}
pub fn try_from_wire_byte(n: u8) -> Result<Self, ()> {
match n {
x if x == TypedTxId::EIP1559Transaction as u8 => Ok(TypedTxId::EIP1559Transaction),
x if x == TypedTxId::AccessList as u8 => Ok(TypedTxId::AccessList),
x if (x & 0x80) != 0x00 => Ok(TypedTxId::Legacy),
_ => Err(()),
}
}
#[allow(non_snake_case)]
pub fn from_U64_option_id(n: Option<U64>) -> Option<Self> {
match n.map(|t| t.as_u64()) {
None => Some(Self::Legacy),
Some(0x00) => Some(Self::Legacy),
Some(0x01) => Some(Self::AccessList),
Some(0x02) => Some(Self::EIP1559Transaction),
_ => None,
}
}
#[allow(non_snake_case)]
pub fn to_U64_option_id(self) -> Option<U64> {
Some(U64::from(self as u8))
}
}
impl Default for TypedTxId {
fn default() -> TypedTxId {
TypedTxId::Legacy
}
}
#[cfg(test)]
mod tests {
use super::*;
#[test]
fn typed_tx_id_try_from_wire() {
assert_eq!(
Ok(TypedTxId::EIP1559Transaction),
TypedTxId::try_from_wire_byte(0x02)
);
assert_eq!(
Ok(TypedTxId::AccessList),
TypedTxId::try_from_wire_byte(0x01)
);
assert_eq!(Ok(TypedTxId::Legacy), TypedTxId::try_from_wire_byte(0x81));
assert_eq!(Err(()), TypedTxId::try_from_wire_byte(0x00));
assert_eq!(Err(()), TypedTxId::try_from_wire_byte(0x03));
}
#[test]
fn typed_tx_id_to_u64_option_id() {
assert_eq!(Some(U64::from(0x00)), TypedTxId::Legacy.to_U64_option_id());
assert_eq!(
Some(U64::from(0x01)),
TypedTxId::AccessList.to_U64_option_id()
);
assert_eq!(
Some(U64::from(0x02)),
TypedTxId::EIP1559Transaction.to_U64_option_id()
);
}
#[test]
fn typed_tx_id_from_u64_option_id() {
assert_eq!(Some(TypedTxId::Legacy), TypedTxId::from_U64_option_id(None));
assert_eq!(
Some(TypedTxId::AccessList),
TypedTxId::from_U64_option_id(Some(U64::from(0x01)))
);
assert_eq!(
Some(TypedTxId::EIP1559Transaction),
TypedTxId::from_U64_option_id(Some(U64::from(0x02)))
);
assert_eq!(None, TypedTxId::from_U64_option_id(Some(U64::from(0x03))));
}
#[test]
fn typed_tx_id_from_u8_id() {
assert_eq!(Some(TypedTxId::Legacy), TypedTxId::from_u8_id(0));
assert_eq!(Some(TypedTxId::AccessList), TypedTxId::from_u8_id(1));
assert_eq!(
Some(TypedTxId::EIP1559Transaction),
TypedTxId::from_u8_id(2)
);
assert_eq!(None, TypedTxId::from_u8_id(3));
}
}