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simplify hir::Pat::walk_.

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This commit is contained in:
Mazdak Farrokhzad 2019-09-15 03:26:51 +02:00
parent 4c346939b0
commit 9d1c3c96e7
1 changed files with 6 additions and 11 deletions
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17
src/librustc/hir/mod.rs
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@ -889,19 +889,14 @@ impl Pat {
return false;
}
match self.node {
PatKind::Binding(.., Some(ref p)) => p.walk_(it),
PatKind::Struct(_, ref fields, _) => {
fields.iter().all(|field| field.pat.walk_(it))
}
PatKind::TupleStruct(_, ref s, _) | PatKind::Tuple(ref s, _) => {
match &self.node {
PatKind::Binding(.., Some(p)) => p.walk_(it),
PatKind::Struct(_, fields, _) => fields.iter().all(|field| field.pat.walk_(it)),
PatKind::TupleStruct(_, s, _) | PatKind::Tuple(s, _) | PatKind::Or(s) => {
s.iter().all(|p| p.walk_(it))
}
PatKind::Or(ref pats) => pats.iter().all(|p| p.walk_(it)),
PatKind::Box(ref s) | PatKind::Ref(ref s, _) => {
s.walk_(it)
}
PatKind::Slice(ref before, ref slice, ref after) => {
PatKind::Box(s) | PatKind::Ref(s, _) => s.walk_(it),
PatKind::Slice(before, slice, after) => {
before.iter()
.chain(slice.iter())
.chain(after.iter())