50 lines
1.7 KiB
Rust
50 lines
1.7 KiB
Rust
// Copyright 2015-2020 Parity Technologies (UK) Ltd.
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// This file is part of Parity Ethereum.
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// Parity Ethereum 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 Ethereum 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 Ethereum. If not, see <http://www.gnu.org/licenses/>.
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//! Nonoperative tracer.
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use ethereum_types::{U256, Address};
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use vm::{Error as VmError, ActionParams};
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use crate::{
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Tracer, VMTracer, FlatTrace,
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trace::{VMTrace, RewardType}
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};
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/// Nonoperative tracer. Does not trace anything.
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pub struct NoopTracer;
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impl Tracer for NoopTracer {
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type Output = FlatTrace;
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fn prepare_trace_call(&mut self, _: &ActionParams, _: usize, _: bool) { }
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fn prepare_trace_create(&mut self, _: &ActionParams) { }
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fn done_trace_call(&mut self, _: U256, _: &[u8]) { }
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fn done_trace_create(&mut self, _: U256, _: &[u8], _: Address) { }
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fn done_trace_failed(&mut self, _: &VmError) { }
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fn trace_suicide(&mut self, _: Address, _: U256, _: Address) { }
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fn trace_reward(&mut self, _: Address, _: U256, _: RewardType) { }
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fn drain(self) -> Vec<FlatTrace> { vec![] }
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}
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/// Nonoperative VM tracer. Does not trace anything.
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pub struct NoopVMTracer;
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impl VMTracer for NoopVMTracer {
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type Output = VMTrace;
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fn drain(self) -> Option<VMTrace> { None }
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}
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