openethereum/src/env_info.rs
2016-01-11 22:32:01 +01:00

47 lines
1.0 KiB
Rust

use util::*;
use header::BlockNumber;
/// Simple vector of hashes, should be at most 256 items large, can be smaller if being used
/// for a block whose number is less than 257.
pub type LastHashes = Vec<H256>;
/// Information concerning the execution environment for a message-call/contract-creation.
pub struct EnvInfo {
/// The block number.
pub number: BlockNumber,
/// The block author.
pub author: Address,
/// The block timestamp.
pub timestamp: u64,
/// The block difficulty.
pub difficulty: U256,
/// The block gas limit.
pub gas_limit: U256,
/// The last 256 block hashes.
pub last_hashes: LastHashes,
/// The gas used.
pub gas_used: U256,
}
impl EnvInfo {
pub fn new() -> EnvInfo {
EnvInfo {
number: 0,
author: Address::new(),
timestamp: 0,
difficulty: U256::zero(),
gas_limit: U256::zero(),
last_hashes: vec![],
gas_used: U256::zero()
}
}
}
/// TODO: it should be the other way around.
/// `new` should call `default`.
impl Default for EnvInfo {
fn default() -> Self {
EnvInfo::new()
}
}