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Use Option::map_or instead of .map(..).unwrap_or(..)

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LingMan 2021-01-11 20:45:33 +01:00
parent d03fe84169
commit a56bffb4f9
50 changed files with 67 additions and 79 deletions
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2
compiler/rustc_mir_build/src/thir/pattern/usefulness.rs
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@ -952,7 +952,7 @@ fn is_useful<'p, 'tcx>(
assert!(rows.iter().all(|r| r.len() == v.len()));
// FIXME(Nadrieril): Hack to work around type normalization issues (see #72476).
let ty = matrix.heads().next().map(|r| r.ty).unwrap_or(v.head().ty);
let ty = matrix.heads().next().map_or(v.head().ty, |r| r.ty);
let pcx = PatCtxt { cx, ty, span: v.head().span, is_top_level };
debug!("is_useful_expand_first_col: ty={:#?}, expanding {:#?}", pcx.ty, v.head());