language-servers/rust-analyzer
1
0
Fork 0
mirror of https://github.com/rust-lang/rust-analyzer.git synced 2025-10-01 06:11:35 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions 3

MIR episode 4

Browse source
This commit is contained in:
hkalbasi 2023-04-28 20:44:30 +03:30
parent 001607fdb4
commit 6312fbf521
47 changed files with 2557 additions and 805 deletions
Download patch file Download diff file Expand all files Collapse all files

19
crates/hir-ty/src/builder.rs
View file

@ -232,6 +232,25 @@ impl TyBuilder<()> {
TyBuilder::new((), params, parent_subst)
}
pub fn subst_for_closure(
db: &dyn HirDatabase,
parent: DefWithBodyId,
sig_ty: Ty,
) -> Substitution {
let sig_ty = sig_ty.cast(Interner);
let self_subst = iter::once(&sig_ty);
let Some(parent) = parent.as_generic_def_id() else {
return Substitution::from_iter(Interner, self_subst);
};
Substitution::from_iter(
Interner,
self_subst
.chain(generics(db.upcast(), parent).placeholder_subst(db).iter(Interner))
.cloned()
.collect::<Vec<_>>(),
)
}
pub fn build(self) -> Substitution {
let ((), subst) = self.build_internal();
subst