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fix: quantified subroutine subtyping bugs

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This commit is contained in:
Shunsuke Shibayama 2023-02-22 02:40:51 +09:00
parent 4dcca2b06d
commit aa2cea60dd
28 changed files with 638 additions and 222 deletions
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23
crates/erg_compiler/context/instantiate.rs
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@ -1497,4 +1497,27 @@ impl Context {
other => Ok(other),
}
}
pub(crate) fn instantiate_dummy(&self, quantified: Type) -> Type {
match quantified {
FreeVar(fv) if fv.is_linked() => self.instantiate_dummy(fv.crack().clone()),
Quantified(quant) => {
let mut tmp_tv_cache = TyVarCache::new(self.level, self);
let ty = self
.instantiate_t_inner(*quant, &mut tmp_tv_cache, &())
.unwrap();
if cfg!(feature = "debug") && ty.has_qvar() {
panic!("{ty} has qvar")
}
ty
}
Refinement(refine) if refine.t.is_quantified_subr() => {
let quant = enum_unwrap!(*refine.t, Type::Quantified);
let mut tmp_tv_cache = TyVarCache::new(self.level, self);
self.instantiate_t_inner(*quant, &mut tmp_tv_cache, &())
.unwrap()
}
other => unreachable!("{other}"),
}
}
}