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Forwards block root iterators (#672)

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* Implement forwards block root iterators

* Clean up errors and docs
This commit is contained in:
Michael Sproul
2019-12-06 18:52:11 +11:00
committed by Paul Hauner
parent 779873680b
commit bd1b61a5b1
23 changed files with 573 additions and 187 deletions
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14
beacon_node/store/src/block_at_slot.rs
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@@ -1,7 +1,7 @@
use super::*;
use ssz::{Decode, DecodeError};
fn get_block_bytes<T: Store, E: EthSpec>(
fn get_block_bytes<T: Store<E>, E: EthSpec>(
store: &T,
root: Hash256,
) -> Result<Option<Vec<u8>>, Error> {
@@ -23,7 +23,7 @@ fn read_parent_root_from_block_bytes(bytes: &[u8]) -> Result<Hash256, DecodeErro
Hash256::from_ssz_bytes(slice)
}
pub fn get_block_at_preceeding_slot<T: Store, E: EthSpec>(
pub fn get_block_at_preceeding_slot<T: Store<E>, E: EthSpec>(
store: &T,
slot: Slot,
start_root: Hash256,
@@ -36,7 +36,7 @@ pub fn get_block_at_preceeding_slot<T: Store, E: EthSpec>(
)
}
fn get_at_preceeding_slot<T: Store, E: EthSpec>(
fn get_at_preceeding_slot<T: Store<E>, E: EthSpec>(
store: &T,
slot: Slot,
mut root: Hash256,
@@ -107,7 +107,7 @@ mod tests {
}
fn build_chain(
store: &impl Store,
store: &impl Store<MinimalEthSpec>,
slots: &[usize],
spec: &ChainSpec,
) -> Vec<(Hash256, BeaconBlock)> {
@@ -157,7 +157,7 @@ mod tests {
#[test]
fn chain_with_skips() {
let store = MemoryStore::open();
let store = MemoryStore::<MinimalEthSpec>::open();
let spec = MinimalEthSpec::default_spec();
let slots = vec![0, 1, 2, 5];
@@ -181,14 +181,14 @@ mod tests {
// Slot that doesn't exist
let (source_root, _source_block) = &blocks_and_roots[3];
assert!(store
.get_block_at_preceeding_slot::<MinimalEthSpec>(*source_root, Slot::new(3))
.get_block_at_preceeding_slot(*source_root, Slot::new(3))
.unwrap()
.is_none());
// Slot too high
let (source_root, _source_block) = &blocks_and_roots[3];
assert!(store
.get_block_at_preceeding_slot::<MinimalEthSpec>(*source_root, Slot::new(3))
.get_block_at_preceeding_slot(*source_root, Slot::new(3))
.unwrap()
.is_none());
}