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fix: sub-unification bugs

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This commit is contained in:
Shunsuke Shibayama 2023-03-22 15:38:47 +09:00
parent b318395a32
commit 0079aed860
10 changed files with 190 additions and 153 deletions
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2
crates/erg_compiler/context/instantiate.rs
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@ -224,7 +224,7 @@ impl Context {
Ok(tp)
} else if let Some(t) = tmp_tv_cache.get_tyvar(&name) {
let t = t.clone();
if let Type::FreeVar(fv) = &t {
if let Some(fv) = t.as_free() {
if fv
.constraint()
.map(|cons| cons.is_uninited())