openethereum/ethcore/src/blooms/bloom.rs

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// 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/>.
use bloomchain as bc;
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use rlp::*;
use util::HeapSizeOf;
use basic_types::LogBloom;
/// Helper structure representing bloom of the trace.
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#[derive(Debug, Clone)]
pub struct Bloom(LogBloom);
impl From<LogBloom> for Bloom {
fn from(bloom: LogBloom) -> Self {
Bloom(bloom)
}
}
impl From<bc::Bloom> for Bloom {
fn from(bloom: bc::Bloom) -> Self {
let bytes: [u8; 256] = bloom.into();
Bloom(LogBloom::from(bytes))
}
}
impl Into<bc::Bloom> for Bloom {
fn into(self) -> bc::Bloom {
let log = self.0;
bc::Bloom::from(log.0)
}
}
impl Decodable for Bloom {
fn decode<D>(decoder: &D) -> Result<Self, DecoderError> where D: Decoder {
Decodable::decode(decoder).map(Bloom)
}
}
impl Encodable for Bloom {
fn rlp_append(&self, s: &mut RlpStream) {
Encodable::rlp_append(&self.0, s)
}
}
impl HeapSizeOf for Bloom {
fn heap_size_of_children(&self) -> usize {
0
}
}