1 files changed, 17 insertions, 24 deletions

diff --git a/compiler/rustc_middle/src/ty/layout.rs b/compiler/rustc_middle/src/ty/layout.rs
index 3312f44c6..488fd5678 100644
--- a/compiler/rustc_middle/src/ty/layout.rs
+++ b/compiler/rustc_middle/src/ty/layout.rs
@@ -1,8 +1,6 @@
 use crate::middle::codegen_fn_attrs::CodegenFnAttrFlags;
 use crate::ty::normalize_erasing_regions::NormalizationError;
 use crate::ty::{self, ReprOptions, Ty, TyCtxt, TypeVisitable};
-use rustc_ast as ast;
-use rustc_attr as attr;
 use rustc_errors::{DiagnosticBuilder, Handler, IntoDiagnostic};
 use rustc_hir as hir;
 use rustc_hir::def_id::DefId;
@@ -20,7 +18,6 @@ use std::ops::Bound;
 
 pub trait IntegerExt {
     fn to_ty<'tcx>(&self, tcx: TyCtxt<'tcx>, signed: bool) -> Ty<'tcx>;
-    fn from_attr<C: HasDataLayout>(cx: &C, ity: attr::IntType) -> Integer;
     fn from_int_ty<C: HasDataLayout>(cx: &C, ity: ty::IntTy) -> Integer;
     fn from_uint_ty<C: HasDataLayout>(cx: &C, uty: ty::UintTy) -> Integer;
     fn repr_discr<'tcx>(
@@ -49,22 +46,6 @@ impl IntegerExt for Integer {
         }
     }
 
-    /// Gets the Integer type from an attr::IntType.
-    fn from_attr<C: HasDataLayout>(cx: &C, ity: attr::IntType) -> Integer {
-        let dl = cx.data_layout();
-
-        match ity {
-            attr::SignedInt(ast::IntTy::I8) | attr::UnsignedInt(ast::UintTy::U8) => I8,
-            attr::SignedInt(ast::IntTy::I16) | attr::UnsignedInt(ast::UintTy::U16) => I16,
-            attr::SignedInt(ast::IntTy::I32) | attr::UnsignedInt(ast::UintTy::U32) => I32,
-            attr::SignedInt(ast::IntTy::I64) | attr::UnsignedInt(ast::UintTy::U64) => I64,
-            attr::SignedInt(ast::IntTy::I128) | attr::UnsignedInt(ast::UintTy::U128) => I128,
-            attr::SignedInt(ast::IntTy::Isize) | attr::UnsignedInt(ast::UintTy::Usize) => {
-                dl.ptr_sized_integer()
-            }
-        }
-    }
-
     fn from_int_ty<C: HasDataLayout>(cx: &C, ity: ty::IntTy) -> Integer {
         match ity {
             ty::IntTy::I8 => I8,
@@ -189,8 +170,8 @@ pub enum LayoutError<'tcx> {
     NormalizationFailure(Ty<'tcx>, NormalizationError<'tcx>),
 }
 
-impl<'a> IntoDiagnostic<'a, !> for LayoutError<'a> {
-    fn into_diagnostic(self, handler: &'a Handler) -> DiagnosticBuilder<'a, !> {
+impl IntoDiagnostic<'_, !> for LayoutError<'_> {
+    fn into_diagnostic(self, handler: &Handler) -> DiagnosticBuilder<'_, !> {
         let mut diag = handler.struct_fatal("");
 
         match self {
@@ -237,6 +218,18 @@ pub struct LayoutCx<'tcx, C> {
     pub param_env: ty::ParamEnv<'tcx>,
 }
 
+impl<'tcx> LayoutCalculator for LayoutCx<'tcx, TyCtxt<'tcx>> {
+    type TargetDataLayoutRef = &'tcx TargetDataLayout;
+
+    fn delay_bug(&self, txt: &str) {
+        self.tcx.sess.delay_span_bug(DUMMY_SP, txt);
+    }
+
+    fn current_data_layout(&self) -> Self::TargetDataLayoutRef {
+        &self.tcx.data_layout
+    }
+}
+
 /// Type size "skeleton", i.e., the only information determining a type's size.
 /// While this is conservative, (aside from constant sizes, only pointers,
 /// newtypes thereof and null pointer optimized enums are allowed), it is
@@ -610,7 +603,7 @@ where
                 })
             }
 
-            Variants::Multiple { ref variants, .. } => variants[variant_index],
+            Variants::Multiple { ref variants, .. } => cx.tcx().intern_layout(variants[variant_index].clone()),
         };
 
         assert_eq!(*layout.variants(), Variants::Single { index: variant_index });
@@ -1126,8 +1119,8 @@ impl<'tcx> fmt::Display for FnAbiError<'tcx> {
     }
 }
 
-impl<'tcx> IntoDiagnostic<'tcx, !> for FnAbiError<'tcx> {
-    fn into_diagnostic(self, handler: &'tcx Handler) -> DiagnosticBuilder<'tcx, !> {
+impl IntoDiagnostic<'_, !> for FnAbiError<'_> {
+    fn into_diagnostic(self, handler: &Handler) -> DiagnosticBuilder<'_, !> {
         handler.struct_fatal(self.to_string())
     }
 }