bjoernager/rust
bjoernager/rust
1
Fork 0
Code Issues Pull requests Activity

improve infer var handling for implied bounds

Browse source
This commit is contained in:
lcnr 2022-09-19 14:59:52 +02:00
parent efa717bc2d
commit 71f8fd5c58
4 changed files with 41 additions and 34 deletions
Download patch file Download diff file Expand all files Collapse all files

3
compiler/rustc_trait_selection/src/traits/outlives_bounds.rs
View file

@ -46,7 +46,7 @@ impl<'a, 'cx, 'tcx: 'a> InferCtxtExt<'a, 'tcx> for InferCtxt<'cx, 'tcx> {
/// Note that this may cause outlives obligations to be injected
/// into the inference context with this body-id.
/// - `ty`, the type that we are supposed to assume is WF.
#[instrument(level = "debug", skip(self, param_env, body_id))]
#[instrument(level = "debug", skip(self, param_env, body_id), ret)]
fn implied_outlives_bounds(
&self,
param_env: ty::ParamEnv<'tcx>,
@ -71,6 +71,7 @@ impl<'a, 'cx, 'tcx: 'a> InferCtxtExt<'a, 'tcx> for InferCtxt<'cx, 'tcx> {
let TypeOpOutput { output, constraints, .. } = result;
if let Some(constraints) = constraints {
debug!(?constraints);
// Instantiation may have produced new inference variables and constraints on those
// variables. Process these constraints.
let mut fulfill_cx = <dyn TraitEngine<'tcx>>::new(self.tcx);