M-Labs/nac3
M-Labs
/
nac3
8
0
Fork 10
Code Issues 98 Pull Requests 18 Releases Wiki Activity

hm-inference #6

Merged
sb10q merged 136 commits from hm-inference into master 2021-08-19 11:46:50 +08:00
Conversation 1 Commits 136 Files Changed 29 +5 -7
1 changed files with 5 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files
Showing only changes of commit d4721db4a3 - Show all commits

12
nac3core/src/typecheck/typedef/mod.rs
View File

@ -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...