111 lines
3.2 KiB
Rust
111 lines
3.2 KiB
Rust
// Copyright 2015-2017 Parity Technologies (UK) Ltd.
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// This file is part of Parity.
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// Parity is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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// Parity is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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// You should have received a copy of the GNU General Public License
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// along with Parity. If not, see <http://www.gnu.org/licenses/>.
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//! Evm input params.
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use util::{Address, Bytes, Uint, U256};
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use util::hash::{H256, FixedHash};
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use util::sha3::{Hashable, SHA3_EMPTY};
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use ethjson;
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use types::executed::CallType;
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use std::sync::Arc;
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/// Transaction value
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#[derive(Clone, Debug)]
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pub enum ActionValue {
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/// Value that should be transfered
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Transfer(U256),
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/// Apparent value for transaction (not transfered)
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Apparent(U256)
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}
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impl ActionValue {
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/// Returns action value as U256.
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pub fn value(&self) -> U256 {
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match *self {
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ActionValue::Transfer(x) | ActionValue::Apparent(x) => x
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}
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}
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}
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// TODO: should be a trait, possible to avoid cloning everything from a Transaction(/View).
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/// Action (call/create) input params. Everything else should be specified in Externalities.
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#[derive(Clone, Debug)]
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pub struct ActionParams {
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/// Address of currently executed code.
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pub code_address: Address,
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/// Hash of currently executed code.
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pub code_hash: H256,
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/// Receive address. Usually equal to code_address,
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/// except when called using CALLCODE.
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pub address: Address,
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/// Sender of current part of the transaction.
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pub sender: Address,
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/// Transaction initiator.
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pub origin: Address,
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/// Gas paid up front for transaction execution
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pub gas: U256,
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/// Gas price.
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pub gas_price: U256,
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/// Transaction value.
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pub value: ActionValue,
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/// Code being executed.
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pub code: Option<Arc<Bytes>>,
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/// Input data.
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pub data: Option<Bytes>,
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/// Type of call
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pub call_type: CallType,
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}
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impl Default for ActionParams {
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/// Returns default ActionParams initialized with zeros
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fn default() -> ActionParams {
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ActionParams {
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code_address: Address::new(),
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code_hash: SHA3_EMPTY,
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address: Address::new(),
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sender: Address::new(),
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origin: Address::new(),
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gas: U256::zero(),
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gas_price: U256::zero(),
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value: ActionValue::Transfer(U256::zero()),
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code: None,
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data: None,
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call_type: CallType::None,
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}
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}
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}
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impl From<ethjson::vm::Transaction> for ActionParams {
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fn from(t: ethjson::vm::Transaction) -> Self {
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let address: Address = t.address.into();
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ActionParams {
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code_address: Address::new(),
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code_hash: (&*t.code).sha3(),
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address: address,
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sender: t.sender.into(),
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origin: t.origin.into(),
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code: Some(Arc::new(t.code.into())),
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data: Some(t.data.into()),
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gas: t.gas.into(),
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gas_price: t.gas_price.into(),
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value: ActionValue::Transfer(t.value.into()),
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call_type: match address.is_zero() { true => CallType::None, false => CallType::Call }, // TODO @debris is this correct?
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}
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}
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}
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