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Simplify some Option / Result / ? operator patterns (#2920)

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* Simplify some Option / Result / ? operator patterns

When they identically match a combinator on those types.

Tool-aided by [comby-rust](https://github.com/huitseeker/comby-rust).

* adjust review comments

Co-authored-by: Shawn Tabrizi <shawntabrizi@gmail.com>
This commit is contained in:
François Garillot
2021-04-25 16:51:01 -04:00
committed by GitHub
parent c7ee98ab5f
commit d4ddf8d7e8
6 changed files with 6 additions and 22 deletions
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polkadot/node/network/availability-distribution/src/tests/mod.rs
+1 -2
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@@ -101,8 +101,7 @@ fn check_fetch_retry() {
let valid_candidate_hashes: HashSet<_> = state.cores
.get(&state.relay_chain[1])
.iter()
.map(|v| v.iter())
.flatten()
.flat_map(|v| v.iter())
.filter_map(|c| {
match c {
CoreState::Occupied(core) => Some(core.candidate_hash),