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Rollup merge of #65650 - guanqun:use-unwrap-or, r=eddyb

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use unwrap_or in lint code
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Yuki Okushi 2019-10-21 19:53:05 +09:00 committed by GitHub
commit 865e46b4ba
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6
src/librustc/lint/levels.rs
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@ -202,11 +202,7 @@ impl<'a> LintLevelsBuilder<'a> {
let meta = unwrap_or!(attr.meta(), continue);
attr::mark_used(attr);
let mut metas = if let Some(metas) = meta.meta_item_list() {
metas
} else {
continue;
};
let mut metas = unwrap_or!(meta.meta_item_list(), continue);
if metas.is_empty() {
// FIXME (#55112): issue unused-attributes lint for `#[level()]`