rust-lang/rust
1
0
Fork 0
Code Issues Pull Requests Actions 1 Packages Projects Releases Wiki Activity

Add var to BoundRegion. Add query to get bound vars for applicable items.

Browse Source
This commit is contained in:
Jack Huey
2020-10-26 14:18:31 -04:00
parent 666859a6f8
commit 6d5efa9f04
53 changed files with 1274 additions and 385 deletions
Download Patch File Download Diff File Expand all files Collapse all files

8
compiler/rustc_middle/src/ty/util.rs
View File

@@ -499,18 +499,18 @@ impl<'tcx> TyCtxt<'tcx> {
self,
closure_def_id: DefId,
closure_substs: SubstsRef<'tcx>,
) -> Option<ty::Binder<'tcx, Ty<'tcx>>> {
env_region: ty::RegionKind,
) -> Option<Ty<'tcx>> {
let closure_ty = self.mk_closure(closure_def_id, closure_substs);
let br = ty::BoundRegion { kind: ty::BrEnv };
let env_region = ty::ReLateBound(ty::INNERMOST, br);
let closure_kind_ty = closure_substs.as_closure().kind_ty();
let closure_kind = closure_kind_ty.to_opt_closure_kind()?;
debug_assert!(!closure_ty.has_escaping_bound_vars());
let env_ty = match closure_kind {
ty::ClosureKind::Fn => self.mk_imm_ref(self.mk_region(env_region), closure_ty),
ty::ClosureKind::FnMut => self.mk_mut_ref(self.mk_region(env_region), closure_ty),
ty::ClosureKind::FnOnce => closure_ty,
};
Some(ty::Binder::bind(env_ty, self))
Some(env_ty)
}
/// Returns `true` if the node pointed to by `def_id` is a `static` item.