75 lines
1.9 KiB
Rust
75 lines
1.9 KiB
Rust
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// 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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use std::rc::Rc;
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use std::cell::Cell;
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use super::{Transaction, U256, Address};
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#[derive(Debug, Default, Clone)]
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pub struct TransactionBuilder {
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nonce: U256,
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gas_price: U256,
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gas: U256,
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sender: Address,
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mem_usage: usize,
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insertion_id: Rc<Cell<u64>>,
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}
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impl TransactionBuilder {
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pub fn tx(&self) -> Self {
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self.clone()
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}
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pub fn nonce<T: Into<U256>>(mut self, nonce: T) -> Self {
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self.nonce = nonce.into();
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self
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}
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pub fn gas_price<T: Into<U256>>(mut self, gas_price: T) -> Self {
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self.gas_price = gas_price.into();
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self
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}
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pub fn sender<T: Into<Address>>(mut self, sender: T) -> Self {
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self.sender = sender.into();
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self
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}
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pub fn mem_usage(mut self, mem_usage: usize) -> Self {
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self.mem_usage = mem_usage;
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self
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}
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pub fn new(self) -> Transaction {
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let insertion_id = {
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let id = self.insertion_id.get() + 1;
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self.insertion_id.set(id);
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id
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};
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let hash = self.nonce ^ (U256::from(100) * self.gas_price) ^ (U256::from(100_000) * self.sender.low_u64().into());
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Transaction {
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hash: hash.into(),
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nonce: self.nonce,
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gas_price: self.gas_price,
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gas: 21_000.into(),
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sender: self.sender,
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insertion_id,
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mem_usage: self.mem_usage,
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}
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}
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}
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