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Merge pull request #280 from erg-lang/fix-#278

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Fix #278
This commit is contained in:
Shunsuke Shibayama 2022-12-08 22:50:29 +09:00 • committed by GitHub
commit 7b95d3fc4d
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2 changed files with 3 additions and 1 deletions
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1
compiler/erg_compiler/context/eval.rs
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@ -1169,6 +1169,7 @@ impl Context {
if !st.is_generalized() { if !st.is_generalized() {
self.substitute_typarams(&qt, &st); self.substitute_typarams(&qt, &st);
} }
self.sub_unify(&st, &qt, Location::Unknown, None).unwrap();
} }
_ => {} _ => {}
} }

3
compiler/erg_compiler/context/tyvar.rs
View file

@ -1391,7 +1391,8 @@ impl Context {
Ok(()) Ok(())
} }
(Type::FreeVar(lfv), _) if lfv.is_unbound() => { (Type::FreeVar(lfv), _) if lfv.is_unbound() => {
match &mut *lfv.borrow_mut() { let lfv_ref = unsafe { lfv.as_ptr().as_mut().unwrap() };
match lfv_ref {
FreeKind::NamedUnbound { constraint, .. } FreeKind::NamedUnbound { constraint, .. }
| FreeKind::Unbound { constraint, .. } => match constraint { | FreeKind::Unbound { constraint, .. } => match constraint {
// sub !<: r => Error // sub !<: r => Error