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69 lines
2.4 KiB
Rust
69 lines
2.4 KiB
Rust
use crate::proto_array::ProposerBoost;
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use crate::{
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proto_array::{ProtoArray, ProtoNodeV17},
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proto_array_fork_choice::{ElasticList, ProtoArrayForkChoice, VoteTracker},
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Error, JustifiedBalances,
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};
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use ssz::{four_byte_option_impl, Encode};
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use ssz_derive::{Decode, Encode};
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use std::collections::HashMap;
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use superstruct::superstruct;
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use types::{Checkpoint, Hash256};
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// Define a "legacy" implementation of `Option<usize>` which uses four bytes for encoding the union
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// selector.
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four_byte_option_impl!(four_byte_option_checkpoint, Checkpoint);
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pub type SszContainer = SszContainerV17;
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#[superstruct(variants(V17), variant_attributes(derive(Encode, Decode)), no_enum)]
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pub struct SszContainer {
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pub votes: Vec<VoteTracker>,
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pub balances: Vec<u64>,
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pub prune_threshold: usize,
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pub justified_checkpoint: Checkpoint,
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pub finalized_checkpoint: Checkpoint,
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#[superstruct(only(V17))]
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pub nodes: Vec<ProtoNodeV17>,
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pub indices: Vec<(Hash256, usize)>,
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pub previous_proposer_boost: ProposerBoost,
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}
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impl From<&ProtoArrayForkChoice> for SszContainer {
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fn from(from: &ProtoArrayForkChoice) -> Self {
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let proto_array = &from.proto_array;
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Self {
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votes: from.votes.0.clone(),
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balances: from.balances.effective_balances.clone(),
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prune_threshold: proto_array.prune_threshold,
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justified_checkpoint: proto_array.justified_checkpoint,
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finalized_checkpoint: proto_array.finalized_checkpoint,
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nodes: proto_array.nodes.clone(),
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indices: proto_array.indices.iter().map(|(k, v)| (*k, *v)).collect(),
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previous_proposer_boost: proto_array.previous_proposer_boost,
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}
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}
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}
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impl TryFrom<SszContainer> for ProtoArrayForkChoice {
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type Error = Error;
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fn try_from(from: SszContainer) -> Result<Self, Error> {
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let proto_array = ProtoArray {
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prune_threshold: from.prune_threshold,
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justified_checkpoint: from.justified_checkpoint,
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finalized_checkpoint: from.finalized_checkpoint,
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nodes: from.nodes,
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indices: from.indices.into_iter().collect::<HashMap<_, _>>(),
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previous_proposer_boost: from.previous_proposer_boost,
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};
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Ok(Self {
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proto_array,
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votes: ElasticList(from.votes),
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balances: JustifiedBalances::from_effective_balances(from.balances)?,
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})
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}
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}
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