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fix: infinite recursion bug

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This commit is contained in:
Shunsuke Shibayama 2024-08-11 14:17:04 +09:00
parent 50cfc43081
commit cd9973e800
2 changed files with 14 additions and 0 deletions
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3
crates/erg_compiler/ty/free.rs
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@ -551,6 +551,9 @@ pub struct Free<T: Send + Clone>(Forkable<FreeKind<T>>);
impl Hash for Free<Type> {
fn hash<H: Hasher>(&self, state: &mut H) {
if self.0.dec_recursion_counter() == 1 {
return;
}
if let Some(name) = self.unbound_name() {
name.hash(state);
}