language-servers/erg
1
0
Fork 0
mirror of https://github.com/erg-lang/erg.git synced 2025-10-02 21:44:34 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions

fix: quantified subroutine subtyping bugs

Browse source
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
Download patch file Download diff file Expand all files Collapse all files

28
crates/erg_compiler/ty/typaram.rs
View file

@ -719,6 +719,14 @@ impl TyParam {
Self::Erased(Box::new(t))
}
pub fn proj_call(self, attr_name: Str, args: Vec<TyParam>) -> Type {
Type::ProjCall {
lhs: Box::new(self),
attr_name,
args,
}
}
// if self: Ratio, Succ(self) => self+ε
pub fn succ(self) -> Self {
Self::app("Succ", vec![self])
@ -906,6 +914,26 @@ impl TyParam {
_ => true,
}
}
pub fn replace(self, target: &Type, to: &Type) -> TyParam {
match self {
TyParam::Value(ValueObj::Type(obj)) => {
TyParam::t(obj.typ().clone()._replace(target, to))
}
TyParam::FreeVar(fv) if fv.is_linked() => fv.crack().clone().replace(target, to),
TyParam::Type(ty) => TyParam::t(ty._replace(target, to)),
self_ => self_,
}
}
/// TyParam::Value(ValueObj::Type(_)) => TyParam::Type
pub fn normalize(self) -> TyParam {
match self {
TyParam::Value(ValueObj::Type(obj)) => TyParam::t(obj.typ().clone().normalize()),
TyParam::Type(t) => TyParam::t(t.normalize()),
other => other,
}
}
}
#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]