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Merge pull request #6887 from roc-lang/in-layout-unit

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Ayaz 2024-07-07 17:22:56 -05:00 • committed by GitHub
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1 changed files with 27 additions and 23 deletions
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50
crates/compiler/mono/src/layout.rs
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@ -3362,32 +3362,36 @@ fn layout_from_flat_type<'a>(
}
}
sortables.sort_by(|(label1, layout1), (label2, layout2)| {
cmp_fields(&env.cache.interner, label1, *layout1, label2, *layout2)
});
let ordered_field_names = Vec::from_iter_in(
sortables
.iter()
.map(|(label, _)| &*arena.alloc_str(label.as_str())),
arena,
)
.into_bump_slice();
let semantic = SemanticRepr::record(ordered_field_names);
let repr = if sortables.len() == 1 {
// If the record has only one field that isn't zero-sized,
// unwrap it.
let inner_repr = sortables.pop().unwrap().1;
inner_repr.newtype()
if sortables.is_empty() {
Cacheable(Ok(Layout::UNIT), criteria)
} else {
let layouts = Vec::from_iter_in(sortables.into_iter().map(|t| t.1), arena);
LayoutRepr::Struct(layouts.into_bump_slice()).direct()
};
sortables.sort_by(|(label1, layout1), (label2, layout2)| {
cmp_fields(&env.cache.interner, label1, *layout1, label2, *layout2)
});
let result = Ok(env.cache.put_in(Layout { repr, semantic }));
let ordered_field_names = Vec::from_iter_in(
sortables
.iter()
.map(|(label, _)| &*arena.alloc_str(label.as_str())),
arena,
)
.into_bump_slice();
let semantic = SemanticRepr::record(ordered_field_names);
Cacheable(result, criteria)
let repr = if sortables.len() == 1 {
// If the record has only one field that isn't zero-sized,
// unwrap it.
let inner_repr = sortables.pop().unwrap().1;
inner_repr.newtype()
} else {
let layouts = Vec::from_iter_in(sortables.into_iter().map(|t| t.1), arena);
LayoutRepr::struct_(layouts.into_bump_slice()).direct()
};
let result = Ok(env.cache.put_in(Layout { repr, semantic }));
Cacheable(result, criteria)
}
}
Tuple(elems, ext_var) => {
let mut criteria = CACHEABLE;