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further optimizations

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This commit is contained in:
Folkert 2021-08-13 13:25:05 +02:00
parent df83bf0d48
commit 24ddc4b1e8
4 changed files with 90 additions and 17 deletions
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11
compiler/types/src/subs.rs
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@ -1423,6 +1423,15 @@ pub struct UnionTags {
}
impl UnionTags {
pub fn is_newtype_wrapper(&self, subs: &Subs) -> bool {
if self.length != 1 {
return false;
}
let slice = subs.variable_slices[self.variables_start as usize].slice;
slice.length == 1
}
pub fn from_tag_name_index(index: SubsIndex<TagName>) -> Self {
Self::from_slices(
SubsSlice::new(index.start, 1),
@ -1440,7 +1449,7 @@ impl UnionTags {
}
}
const fn tag_names(&self) -> SubsSlice<TagName> {
pub const fn tag_names(&self) -> SubsSlice<TagName> {
SubsSlice::new(self.tag_names_start, self.length)
}