nordic-dev.net/rust
nordic-dev.net/rust
2
0
Fork 0
mirror of https://github.com/rust-lang/rust.git synced 2024-11-23 07:14:28 +00:00
Code Issues Packages Projects Releases Wiki Activity

update comment

Browse Source
This commit is contained in:
lcnr 2022-03-11 09:51:42 +01:00
parent 01ad0ad653
commit c833a9b4b4
1 changed files with 4 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
compiler/rustc_infer/src/infer/higher_ranked/mod.rs
View File

@ -58,14 +58,11 @@ impl<'a, 'tcx> CombineFields<'a, 'tcx> {
}
impl<'a, 'tcx> InferCtxt<'a, 'tcx> {
/// Replaces all regions (resp. types) bound by `binder` with placeholder
/// regions (resp. types) and return a map indicating which bound-region
/// placeholder region. This is the first step of checking subtyping
/// when higher-ranked things are involved.
/// Replaces all bound variables (lifetimes, types, and constants) bound by
/// `binder` with placeholder variables.
///
/// **Important:** You have to be careful to not leak these placeholders,
/// for more information about how placeholders and HRTBs work, see
/// the [rustc dev guide].
/// This is the first step of checking subtyping when higher-ranked things are involved.
/// For more details visit the relevant sections of the [rustc dev guide].
///
/// [rustc dev guide]: https://rustc-dev-guide.rust-lang.org/traits/hrtb.html
pub fn replace_bound_vars_with_placeholders<T>(&self, binder: ty::Binder<'tcx, T>) -> T