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Slash and prove membership of prior sessions (#2970)

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* skeleton for tracking historical sessions

* refactor OpaqueKeys

* some more skeleton work

* adjust session to new OpaqueKeys API

* further refactoring of key-type-ids

* session gets validator ID parameter

* run up against compiler

* tweak staking to support new session changes

* first run at child storage for deduplication

* Make session use `AccountId` as `ValidatorId`

* run up against child trie issues

* switch to using normal trie but with a fixed prefix

* clear out some println

* add dedup test

* flesh out historical module more

* introduce ExposureOf for staking

* test the historical module

* WASM compiles

* tests all compile

* do some mock change

* fix bulk of tests

* fix staking tests

* test obsolecence mechanic

* Apply suggestions from code review

Co-Authored-By: Bastian Köcher <bkchr@users.noreply.github.com>

* some more style nits

* a couple more nits

* tweak tries

* fix typo thie -> this
This commit is contained in:
Robert Habermeier
2019-07-08 14:36:46 +02:00
committed by GitHub
parent bb7ff32e77
commit 7df8e52cfe
23 changed files with 1188 additions and 341 deletions
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substrate/core/trie/src/lib.rs
+2
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@@ -36,6 +36,8 @@ pub use node_codec::NodeCodec;
pub use trie_db::{Trie, TrieMut, DBValue, Recorder, Query};
/// Various re-exports from the `memory-db` crate.
pub use memory_db::{KeyFunction, prefixed_key};
/// Various re-exports from the `hash-db` crate.
pub use hash_db::HashDB as HashDBT;
/// As in `trie_db`, but less generic, error type for the crate.
pub type TrieError<H> = trie_db::TrieError<H, Error>;