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Simplify some Option / Result / ? operator patterns (#8653)

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* Simplify some Option / Result / ? operator patterns

When those match a combinator exactly.

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

* adjust after review

* adjust post-review
This commit is contained in:
François Garillot
2021-04-23 09:36:10 -04:00
committed by GitHub
parent 541692c4a8
commit 052be8bbef
37 changed files with 77 additions and 188 deletions
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substrate/frame/authorship/src/lib.rs
+1 -4
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@@ -490,10 +490,7 @@ mod tests {
let pre_runtime_digests = header.digest.logs.iter().filter_map(|d| d.as_pre_runtime());
let seals = header.digest.logs.iter().filter_map(|d| d.as_seal());
let author = match AuthorGiven::find_author(pre_runtime_digests) {
None => return Err("no author"),
Some(author) => author,
};
let author = AuthorGiven::find_author(pre_runtime_digests).ok_or_else(|| "no author")?;
for (id, seal) in seals {
if id == TEST_ID {