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get rid of inefficient conversion from mutmap to uniontags

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This commit is contained in:
Folkert 2021-08-14 00:32:01 +02:00
parent 4cbb1c9b25
commit 3e448c1b74
3 changed files with 112 additions and 83 deletions
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9
compiler/solve/src/solve.rs
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@ -931,7 +931,7 @@ fn check_for_infinite_type(
},
);
let mut new_tags = MutMap::default();
let mut new_tags = Vec::with_capacity(tags.len());
for (name_index, slice_index) in tags.iter_all() {
let slice = subs[slice_index];
@ -942,13 +942,14 @@ fn check_for_infinite_type(
new_vars.push(subs.explicit_substitute(recursive, rec_var, var));
}
new_tags.insert(subs[name_index].clone(), new_vars);
new_tags.push((subs[name_index].clone(), new_vars));
}
let new_ext_var = subs.explicit_substitute(recursive, rec_var, ext_var);
let flat_type =
roc_unify::unify::from_mutmap_rec(subs, rec_var, new_tags, new_ext_var);
let new_tags = UnionTags::insert_into_subs(subs, new_tags);
let flat_type = FlatType::RecursiveTagUnion(rec_var, new_tags, new_ext_var);
subs.set_content(recursive, Content::Structure(flat_type));
}