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Refactored Slicable (#324)

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* Refactored Slicable

* Docs

* Wasm build

* Wasm build

* Renamed traits

* Review nits

* Renamed Slicable as well
This commit is contained in:
Arkadiy Paronyan
2018-07-15 22:51:21 +02:00
committed by Gav Wood
parent b45020175a
commit 1aeb2825af
84 changed files with 901 additions and 818 deletions
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substrate/polkadot/statement-table/src/generic.rs
+17 -18
View File
@@ -31,7 +31,7 @@ use std::collections::hash_map::{HashMap, Entry};
use std::hash::Hash;
use std::fmt::Debug;
use codec::{Slicable, Input};
use codec::{Decode, Encode, Input, Output};
/// Context for the statement table.
pub trait Context {
@@ -97,44 +97,43 @@ enum StatementKind {
Available = 4,
}
impl<C: Slicable, D: Slicable> Slicable for Statement<C, D> {
fn encode(&self) -> Vec<u8> {
let mut v = Vec::new();
impl<C: Encode, D: Encode> Encode for Statement<C, D> {
fn encode_to<T: Output>(&self, dest: &mut T) {
match *self {
Statement::Candidate(ref candidate) => {
v.push(StatementKind::Candidate as u8);
candidate.using_encoded(|s| v.extend(s));
dest.push_byte(StatementKind::Candidate as u8);
dest.push(candidate);
}
Statement::Valid(ref digest) => {
v.push(StatementKind::Valid as u8);
digest.using_encoded(|s| v.extend(s));
dest.push_byte(StatementKind::Valid as u8);
dest.push(digest);
}
Statement::Invalid(ref digest) => {
v.push(StatementKind::Invalid as u8);
digest.using_encoded(|s| v.extend(s));
dest.push_byte(StatementKind::Invalid as u8);
dest.push(digest);
}
Statement::Available(ref digest) => {
v.push(StatementKind::Available as u8);
digest.using_encoded(|s| v.extend(s));
dest.push_byte(StatementKind::Available as u8);
dest.push(digest);
}
}
v
}
}
impl<C: Decode, D: Decode> Decode for Statement<C, D> {
fn decode<I: Input>(value: &mut I) -> Option<Self> {
match value.read_byte() {
Some(x) if x == StatementKind::Candidate as u8 => {
Slicable::decode(value).map(Statement::Candidate)
Decode::decode(value).map(Statement::Candidate)
}
Some(x) if x == StatementKind::Valid as u8 => {
Slicable::decode(value).map(Statement::Valid)
Decode::decode(value).map(Statement::Valid)
}
Some(x) if x == StatementKind::Invalid as u8 => {
Slicable::decode(value).map(Statement::Invalid)
Decode::decode(value).map(Statement::Invalid)
}
Some(x) if x == StatementKind::Available as u8 => {
Slicable::decode(value).map(Statement::Available)
Decode::decode(value).map(Statement::Available)
}
_ => None,
}