62 lines
1.7 KiB
Rust
62 lines
1.7 KiB
Rust
// Copyright 2015-2017 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/>.
|
|
|
|
//! Wasm evm call arguments helper
|
|
|
|
use util::{U256, H160};
|
|
|
|
/// Input part of the wasm call descriptor
|
|
pub struct CallArgs {
|
|
/// Receiver of the transaction
|
|
pub address: [u8; 20],
|
|
|
|
/// Sender of the transaction
|
|
pub sender: [u8; 20],
|
|
|
|
/// Original transaction initiator
|
|
pub origin: [u8; 20],
|
|
|
|
/// Transfer value
|
|
pub value: [u8; 32],
|
|
|
|
/// call/create params
|
|
pub data: Vec<u8>,
|
|
}
|
|
|
|
impl CallArgs {
|
|
/// New contract call payload with known parameters
|
|
pub fn new(address: H160, sender: H160, origin: H160, value: U256, data: Vec<u8>) -> Self {
|
|
let mut descriptor = CallArgs {
|
|
address: [0u8; 20],
|
|
sender: [0u8; 20],
|
|
origin: [0u8; 20],
|
|
value: [0u8; 32],
|
|
data: data,
|
|
};
|
|
|
|
descriptor.address.copy_from_slice(&*address);
|
|
descriptor.sender.copy_from_slice(&*sender);
|
|
descriptor.origin.copy_from_slice(&*origin);
|
|
value.to_big_endian(&mut descriptor.value);
|
|
|
|
descriptor
|
|
}
|
|
|
|
/// Total call payload length in linear memory
|
|
pub fn len(&self) -> u32 {
|
|
self.data.len() as u32 + 92
|
|
}
|
|
} |