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Rollup merge of #85906 - LingMan:iter_find, r=matthewjasper

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Use `Iterator::find` instead of open-coding it

```@rustbot``` modify labels +C-cleanup +T-compiler
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Yuki Okushi 2021-06-08 13:26:28 +09:00 committed by GitHub
commit 472dbec026
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1 changed files with 3 additions and 8 deletions
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11
compiler/rustc_lint/src/types.rs
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@ -679,16 +679,11 @@ pub fn transparent_newtype_field<'a, 'tcx>(
variant: &'a ty::VariantDef,
) -> Option<&'a ty::FieldDef> {
let param_env = tcx.param_env(variant.def_id);
for field in &variant.fields {
variant.fields.iter().find(|field| {
let field_ty = tcx.type_of(field.did);
let is_zst = tcx.layout_of(param_env.and(field_ty)).map_or(false, |layout| layout.is_zst());
if !is_zst {
return Some(field);
}
}
None
!is_zst
})
}
/// Is type known to be non-null?