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Merge pull request #3050 from rtfeldman/bindgen-tag-payloads

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Bindgen single-tag unions
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Richard Feldman 2022-05-10 19:27:25 -04:00 • committed by GitHub
commit 11e2faa87a
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6 changed files with 214 additions and 78 deletions
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11
compiler/types/src/subs.rs
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@ -2396,6 +2396,17 @@ impl UnionTags {
.zip(self.variables().into_iter())
}
/// Iterator over (TagName, &[Variable]) pairs obtained by
/// looking up slices in the given Subs
pub fn iter_from_subs<'a>(
&'a self,
subs: &'a Subs,
) -> impl Iterator<Item = (&'a TagName, &'a [Variable])> + ExactSizeIterator {
self.iter_all().map(move |(name_index, payload_index)| {
(&subs[name_index], subs.get_subs_slice(subs[payload_index]))
})
}
#[inline(always)]
pub fn unsorted_iterator<'a>(
&'a self,