additional TypingEnv cleanups

Author: lcnr

compiler/rustc_codegen_ssa/src/base.rs

@@ -22,7 +22,7 @@ use rustc_middle::mir::BinOp;
 use rustc_middle::mir::mono::{CodegenUnit, CodegenUnitNameBuilder, MonoItem};
 use rustc_middle::query::Providers;
 use rustc_middle::ty::layout::{HasTyCtxt, HasTypingEnv, LayoutOf, TyAndLayout};
-use rustc_middle::ty::{self, Instance, Ty, TyCtxt, TypingMode};
+use rustc_middle::ty::{self, Instance, Ty, TyCtxt};
 use rustc_session::Session;
 use rustc_session::config::{self, CrateType, EntryFnType, OptLevel, OutputType};
 use rustc_span::symbol::sym;
@@ -119,7 +119,8 @@ pub fn validate_trivial_unsize<'tcx>(
 ) -> bool {
     match (source_data.principal(), target_data.principal()) {
         (Some(hr_source_principal), Some(hr_target_principal)) => {
-            let infcx = tcx.infer_ctxt().build(TypingMode::PostAnalysis);
+            let (infcx, param_env) =
+                tcx.infer_ctxt().build_with_typing_env(ty::TypingEnv::fully_monomorphized());
             let universe = infcx.universe();
             let ocx = ObligationCtxt::new(&infcx);
             infcx.enter_forall(hr_target_principal, |target_principal| {
@@ -130,7 +131,7 @@ pub fn validate_trivial_unsize<'tcx>(
                 );
                 let Ok(()) = ocx.eq_trace(
                     &ObligationCause::dummy(),
-                    ty::ParamEnv::reveal_all(),
+                    param_env,
                     ToTrace::to_trace(
                         &ObligationCause::dummy(),
                         hr_target_principal,

compiler/rustc_hir_analysis/src/check/compare_impl_item.rs

@@ -1193,9 +1193,9 @@ fn compare_self_type<'tcx>(
             ty::AssocItemContainer::Trait => tcx.types.self_param,
         };
         let self_arg_ty = tcx.fn_sig(method.def_id).instantiate_identity().input(0);
-        let param_env = ty::ParamEnv::reveal_all();
-
-        let infcx = tcx.infer_ctxt().build(TypingMode::non_body_analysis());
+        let (infcx, param_env) = tcx
+            .infer_ctxt()
+            .build_with_typing_env(ty::TypingEnv::non_body_analysis(tcx, method.def_id));
         let self_arg_ty = tcx.liberate_late_bound_regions(method.def_id, self_arg_ty);
         let can_eq_self = |ty| infcx.can_eq(param_env, untransformed_self_ty, ty);
         match ExplicitSelf::determine(self_arg_ty, can_eq_self) {

compiler/rustc_middle/src/mir/mod.rs

@@ -459,10 +459,7 @@ impl<'tcx> Body<'tcx> {
                 typing_mode: ty::TypingMode::non_body_analysis(),
                 param_env: tcx.param_env(self.source.def_id()),
             },
-            MirPhase::Runtime(_) => TypingEnv {
-                typing_mode: ty::TypingMode::PostAnalysis,
-                param_env: tcx.param_env_reveal_all_normalized(self.source.def_id()),
-            },
+            MirPhase::Runtime(_) => TypingEnv::post_analysis(tcx, self.source.def_id()),
         }
     }
 

compiler/rustc_mir_transform/src/instsimplify.rs

@@ -6,7 +6,7 @@ use rustc_hir::LangItem;
 use rustc_middle::bug;
 use rustc_middle::mir::*;
 use rustc_middle::ty::layout::ValidityRequirement;
-use rustc_middle::ty::{self, GenericArgsRef, ParamEnv, Ty, TyCtxt, layout};
+use rustc_middle::ty::{self, GenericArgsRef, Ty, TyCtxt, layout};
 use rustc_span::sym;
 use rustc_span::symbol::Symbol;
 
@@ -34,7 +34,7 @@ impl<'tcx> crate::MirPass<'tcx> for InstSimplify {
         let ctx = InstSimplifyContext {
             tcx,
             local_decls: &body.local_decls,
-            param_env: tcx.param_env_reveal_all_normalized(body.source.def_id()),
+            typing_env: body.typing_env(tcx),
         };
         let preserve_ub_checks =
             attr::contains_name(tcx.hir().krate_attrs(), sym::rustc_preserve_ub_checks);
@@ -66,13 +66,7 @@ impl<'tcx> crate::MirPass<'tcx> for InstSimplify {
 struct InstSimplifyContext<'a, 'tcx> {
     tcx: TyCtxt<'tcx>,
     local_decls: &'a LocalDecls<'tcx>,
-    param_env: ParamEnv<'tcx>,
-}
-
-impl<'tcx> InstSimplifyContext<'_, 'tcx> {
-    fn typing_env(&self) -> ty::TypingEnv<'tcx> {
-        ty::TypingEnv { typing_mode: ty::TypingMode::PostAnalysis, param_env: self.param_env }
-    }
+    typing_env: ty::TypingEnv<'tcx>,
 }
 
 impl<'tcx> InstSimplifyContext<'_, 'tcx> {
@@ -354,7 +348,7 @@ impl<'tcx> InstSimplifyContext<'_, 'tcx> {
         }
 
         let known_is_valid =
-            intrinsic_assert_panics(self.tcx, self.typing_env(), args[0], intrinsic_name);
+            intrinsic_assert_panics(self.tcx, self.typing_env, args[0], intrinsic_name);
         match known_is_valid {
             // We don't know the layout or it's not validity assertion at all, don't touch it
             None => {}

compiler/rustc_symbol_mangling/src/v0.rs

@@ -233,11 +233,11 @@ impl<'tcx> Printer<'tcx> for SymbolMangler<'tcx> {
         let key = self.tcx.def_key(impl_def_id);
         let parent_def_id = DefId { index: key.parent.unwrap(), ..impl_def_id };
 
-        let mut param_env = self.tcx.param_env_reveal_all_normalized(impl_def_id);
+        let mut typing_env = ty::TypingEnv::post_analysis(self.tcx, impl_def_id);
         if !args.is_empty() {
-            param_env = EarlyBinder::bind(param_env).instantiate(self.tcx, args);
+            typing_env.param_env =
+                EarlyBinder::bind(typing_env.param_env).instantiate(self.tcx, args);
         }
-        let typing_env = ty::TypingEnv { typing_mode: ty::TypingMode::PostAnalysis, param_env };
 
         match &mut impl_trait_ref {
             Some(impl_trait_ref) => {

compiler/rustc_trait_selection/src/traits/mod.rs

@@ -698,8 +698,8 @@ fn replace_param_and_infer_args_with_placeholder<'tcx>(
 /// used during analysis.
 pub fn impossible_predicates<'tcx>(tcx: TyCtxt<'tcx>, predicates: Vec<ty::Clause<'tcx>>) -> bool {
     debug!("impossible_predicates(predicates={:?})", predicates);
-    let infcx = tcx.infer_ctxt().build(TypingMode::PostAnalysis);
-    let param_env = ty::ParamEnv::reveal_all();
+    let (infcx, param_env) =
+        tcx.infer_ctxt().build_with_typing_env(ty::TypingEnv::fully_monomorphized());
     let ocx = ObligationCtxt::new(&infcx);
     let predicates = ocx.normalize(&ObligationCause::dummy(), param_env, predicates);
     for predicate in predicates {

compiler/rustc_trait_selection/src/traits/vtable.rs

@@ -9,8 +9,7 @@ use rustc_infer::traits::util::PredicateSet;
 use rustc_middle::bug;
 use rustc_middle::query::Providers;
 use rustc_middle::ty::{
-    self, GenericArgs, GenericParamDefKind, Ty, TyCtxt, TypeVisitableExt, TypingMode, Upcast,
-    VtblEntry,
+    self, GenericArgs, GenericParamDefKind, Ty, TyCtxt, TypeVisitableExt, Upcast, VtblEntry,
 };
 use rustc_span::{DUMMY_SP, Span, sym};
 use smallvec::{SmallVec, smallvec};
@@ -442,8 +441,8 @@ fn trait_refs_are_compatible<'tcx>(
         return false;
     }
 
-    let infcx = tcx.infer_ctxt().build(TypingMode::PostAnalysis);
-    let param_env = ty::ParamEnv::reveal_all();
+    let (infcx, param_env) =
+        tcx.infer_ctxt().build_with_typing_env(ty::TypingEnv::fully_monomorphized());
     let ocx = ObligationCtxt::new(&infcx);
     let hr_source_principal =
         ocx.normalize(&ObligationCause::dummy(), param_env, hr_vtable_principal);