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get fancy, store variable directly in the index

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Folkert 2022-03-13 01:59:28 +01:00
parent b3d9f9c2de
commit eccb461b01
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2 changed files with 6 additions and 3 deletions
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5
compiler/can/src/constraint.rs
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@ -125,7 +125,10 @@ impl Constraints {
Type::EmptyRec => EitherIndex::from_left(Self::EMPTY_RECORD), Type::EmptyRec => EitherIndex::from_left(Self::EMPTY_RECORD),
Type::EmptyTagUnion => EitherIndex::from_left(Self::EMPTY_TAG_UNION), Type::EmptyTagUnion => EitherIndex::from_left(Self::EMPTY_TAG_UNION),
Type::Variable(var) => { Type::Variable(var) => {
let index: Index<Variable> = Index::push_new(&mut self.variables, var); // that's right, we use the variable's integer value as the index
// that way, we don't need to push anything onto a vector
let index: Index<Variable> = Index::new(var.index());
EitherIndex::from_right(index) EitherIndex::from_right(index)
} }
other => { other => {

4
compiler/solve/src/solve.rs
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@ -890,8 +890,8 @@ fn either_type_index_to_var(
type_to_var(subs, rank, pools, _alias_map, typ) type_to_var(subs, rank, pools, _alias_map, typ)
} }
Err(var_index) => { Err(var_index) => {
let var = constraints.variables[var_index.index()]; // we cheat, and store the variable directly in the index
var unsafe { Variable::from_index(var_index.index() as _) }
} }
} }
} }