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not creating temp for borrow, more concise code

This commit is contained in:
CrescentonC 2021-08-03 09:45:39 +08:00
parent a7e3eeea0d
commit d4721db4a3
1 changed files with 5 additions and 7 deletions
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12
nac3core/src/typecheck/typedef/mod.rs
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@ -373,9 +373,8 @@ impl Unifier {
(TVar { meta: Record(map), id, range, .. }, TObj { fields, .. }) => {
self.occur_check(a, b)?;
for (k, v) in map.borrow().iter() {
let temp = fields.borrow();
let ty = temp.get(k).ok_or_else(|| format!("No such attribute {}", k))?;
self.unify(*ty, *v)?;
let ty = fields.borrow().get(k).copied().ok_or_else(|| format!("No such attribute {}", k))?;
self.unify(ty, *v)?;
}
let x = self.check_var_compatibility(*id, b, &range.borrow())?.unwrap_or(b);
self.unify(x, b)?;
@ -386,12 +385,11 @@ impl Unifier {
let ty = self.get_ty(*ty);
if let TObj { fields, .. } = ty.as_ref() {
for (k, v) in map.borrow().iter() {
let temp = fields.borrow();
let ty = temp.get(k).ok_or_else(|| format!("No such attribute {}", k))?;
if !matches!(self.get_ty(*ty).as_ref(), TFunc { .. }) {
let ty = fields.borrow().get(k).copied().ok_or_else(|| format!("No such attribute {}", k))?;
if !matches!(self.get_ty(ty).as_ref(), TFunc { .. }) {
return Err(format!("Cannot access field {} for virtual type", k));
}
self.unify(*v, *ty)?;
self.unify(*v, ty)?;
}
} else {
// require annotation...