diff options
Diffstat (limited to 'compiler/rustc_middle/src/ty/region.rs')
| -rw-r--r-- | compiler/rustc_middle/src/ty/region.rs | 27 |
1 files changed, 0 insertions, 27 deletions
diff --git a/compiler/rustc_middle/src/ty/region.rs b/compiler/rustc_middle/src/ty/region.rs index 0e07ef31c26..0807cbf91d1 100644 --- a/compiler/rustc_middle/src/ty/region.rs +++ b/compiler/rustc_middle/src/ty/region.rs @@ -265,33 +265,6 @@ impl<'tcx> Region<'tcx> { flags } - /// Given an early-bound or free region, returns the `DefId` where it was bound. - /// For example, consider the regions in this snippet of code: - /// - /// ```ignore (illustrative) - /// impl<'a> Foo { - /// // ^^ -- early bound, declared on an impl - /// - /// fn bar<'b, 'c>(x: &self, y: &'b u32, z: &'c u64) where 'static: 'c - /// // ^^ ^^ ^ anonymous, late-bound - /// // | early-bound, appears in where-clauses - /// // late-bound, appears only in fn args - /// {..} - /// } - /// ``` - /// - /// Here, `free_region_binding_scope('a)` would return the `DefId` - /// of the impl, and for all the other highlighted regions, it - /// would return the `DefId` of the function. In other cases (not shown), this - /// function might return the `DefId` of a closure. - pub fn free_region_binding_scope(self, tcx: TyCtxt<'_>) -> DefId { - match *self { - ty::ReEarlyParam(br) => tcx.parent(br.def_id), - ty::ReLateParam(fr) => fr.scope, - _ => bug!("free_region_binding_scope invoked on inappropriate region: {:?}", self), - } - } - /// True for free regions other than `'static`. pub fn is_param(self) -> bool { matches!(*self, ty::ReEarlyParam(_) | ty::ReLateParam(_)) |