145 lines
3.2 KiB
Rust
145 lines
3.2 KiB
Rust
//! Block oriented views onto rlp.
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use util::*;
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use header::*;
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use transaction::*;
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/// View onto block rlp.
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pub struct BlockView<'a> {
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rlp: Rlp<'a>
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}
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impl<'a> BlockView<'a> {
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/// Creates new view onto block from raw bytes.
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pub fn new(bytes: &'a [u8]) -> BlockView<'a> {
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BlockView {
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rlp: Rlp::new(bytes)
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}
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}
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/// Creates new view onto block from rlp.
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pub fn new_from_rlp(rlp: Rlp<'a>) -> BlockView<'a> {
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BlockView {
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rlp: rlp
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}
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}
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/// Return reference to underlaying rlp.
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pub fn rlp(&self) -> &Rlp<'a> {
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&self.rlp
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}
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/// Create new Header object from header rlp.
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pub fn header(&self) -> Header {
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self.rlp.val_at(0)
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}
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/// Create new header view obto block head rlp.
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pub fn header_view(&self) -> HeaderView<'a> {
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HeaderView::new_from_rlp(self.rlp.at(0))
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}
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/// Return List of transactions in given block.
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pub fn transactions(&self) -> Vec<Transaction> {
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self.rlp.val_at(1)
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}
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/// Return transaction hashes.
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pub fn transaction_hashes(&self) -> Vec<H256> {
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self.rlp.at(1).iter().map(|rlp| rlp.as_raw().sha3()).collect()
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}
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/// Return list of uncles of given block.
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pub fn uncles(&self) -> Vec<Header> {
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self.rlp.val_at(2)
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}
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/// Return list of uncle hashes of given block.
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pub fn uncle_hashes(&self) -> Vec<H256> {
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self.rlp.at(2).iter().map(|rlp| rlp.as_raw().sha3()).collect()
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}
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}
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impl<'a> Hashable for BlockView<'a> {
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fn sha3(&self) -> H256 {
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self.header_view().sha3()
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}
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}
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/// View onto block header rlp.
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pub struct HeaderView<'a> {
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rlp: Rlp<'a>
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}
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impl<'a> HeaderView<'a> {
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/// Creates new view onto header from raw bytes.
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pub fn new(bytes: &'a [u8]) -> HeaderView<'a> {
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HeaderView {
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rlp: Rlp::new(bytes)
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}
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}
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/// Creates new view onto header from rlp.
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pub fn new_from_rlp(rlp: Rlp<'a>) -> HeaderView<'a> {
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HeaderView {
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rlp: rlp
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}
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}
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/// Returns raw rlp.
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pub fn rlp(&self) -> &Rlp<'a> { &self.rlp }
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/// Returns parent hash.
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pub fn parent_hash(&self) -> H256 { self.rlp.val_at(0) }
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/// Returns uncles hash.
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pub fn uncles_hash(&self) -> H256 { self.rlp.val_at(1) }
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/// Returns author.
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pub fn author(&self) -> Address { self.rlp.val_at(2) }
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/// Returns state root.
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pub fn state_root(&self) -> H256 { self.rlp.val_at(3) }
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/// Returns transactions root.
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pub fn transactions_root(&self) -> H256 { self.rlp.val_at(4) }
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/// Returns block receipts root.
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pub fn receipts_root(&self) -> H256 { self.rlp.val_at(5) }
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/// Returns block log bloom.
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pub fn log_bloom(&self) -> H2048 { self.rlp.val_at(6) }
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/// Returns block difficulty.
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pub fn difficulty(&self) -> U256 { self.rlp.val_at(7) }
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/// Returns block number.
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pub fn number(&self) -> BlockNumber { self.rlp.val_at(8) }
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/// Returns block gas limit.
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pub fn gas_limit(&self) -> U256 { self.rlp.val_at(9) }
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/// Returns block gas used.
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pub fn gas_used(&self) -> U256 { self.rlp.val_at(10) }
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/// Returns timestamp.
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pub fn timestamp(&self) -> u64 { self.rlp.val_at(11) }
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/// Returns block extra data.
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pub fn extra_data(&self) -> Bytes { self.rlp.val_at(12) }
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/// Returns block seal.
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pub fn seal(&self) -> Vec<Bytes> {
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let mut seal = vec![];
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for i in 13..self.rlp.item_count() {
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seal.push(self.rlp.val_at(i));
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}
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seal
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}
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}
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impl<'a> Hashable for HeaderView<'a> {
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fn sha3(&self) -> H256 {
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self.rlp.as_raw().sha3()
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}
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}
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