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expose ParamEnv as a param

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This commit is contained in:
Douglas Campos 2017-09-20 22:51:35 -04:00
parent 77d3ca1bad
commit c900abf42d
2 changed files with 4 additions and 4 deletions
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4
src/librustc/traits/trans/mod.rs
View File

@ -19,7 +19,7 @@ use std::cell::RefCell;
use std::marker::PhantomData;
use syntax::ast;
use syntax_pos::Span;
use traits::{FulfillmentContext, Obligation, ObligationCause, Reveal, SelectionContext, Vtable};
use traits::{FulfillmentContext, Obligation, ObligationCause, SelectionContext, Vtable};
use ty::{self, Ty, TyCtxt};
use ty::subst::{Subst, Substs};
use ty::fold::{TypeFoldable, TypeFolder};
@ -33,12 +33,12 @@ impl<'a, 'tcx> TyCtxt<'a, 'tcx, 'tcx> {
/// obligations *could be* resolved if we wanted to.
pub fn trans_fulfill_obligation(self,
span: Span,
param_env: ty::ParamEnv<'tcx>,
trait_ref: ty::PolyTraitRef<'tcx>)
-> Vtable<'tcx, ()>
{
// Remove any references to regions; this helps improve caching.
let trait_ref = self.erase_regions(&trait_ref);
let param_env = ty::ParamEnv::empty(Reveal::All);
self.trans_trait_caches.trait_cache.memoize((param_env, trait_ref), || {
debug!("trans::fulfill_obligation(trait_ref={:?}, def_id={:?})",

4
src/librustc_trans/monomorphize.rs
View File

@ -112,7 +112,7 @@ fn resolve_associated_item<'a, 'tcx>(
def_id, trait_id, rcvr_substs);
let trait_ref = ty::TraitRef::from_method(tcx, trait_id, rcvr_substs);
let vtbl = tcx.trans_fulfill_obligation(DUMMY_SP, ty::Binder(trait_ref));
let vtbl = tcx.trans_fulfill_obligation(DUMMY_SP, ty::ParamEnv::empty(traits::Reveal::All), ty::Binder(trait_ref));
// Now that we know which impl is being used, we can dispatch to
// the actual function:
@ -226,7 +226,7 @@ pub fn custom_coerce_unsize_info<'a, 'tcx>(tcx: TyCtxt<'a, 'tcx, 'tcx>,
substs: tcx.mk_substs_trait(source_ty, &[target_ty])
});
match tcx.trans_fulfill_obligation(DUMMY_SP, trait_ref) {
match tcx.trans_fulfill_obligation(DUMMY_SP, ty::ParamEnv::empty(traits::Reveal::All), trait_ref) {
traits::VtableImpl(traits::VtableImplData { impl_def_id, .. }) => {
tcx.coerce_unsized_info(impl_def_id).custom_kind.unwrap()
}