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authorMatthew Jasper <mjjasper1@gmail.com>2020-02-13 20:29:30 +0000
committerMatthew Jasper <mjjasper1@gmail.com>2020-02-13 20:31:25 +0000
commitddc25456c5945457ba86cb60994ce9872bd98edd (patch)
treeb4373c6e35f8237fb2d1b73dcef86ccc039d92ac /src/librustc_mir
parentcd9f5ff2a1c50a5af94ad1dd1c976f631b9f19a6 (diff)
downloadrust-ddc25456c5945457ba86cb60994ce9872bd98edd.tar.gz
rust-ddc25456c5945457ba86cb60994ce9872bd98edd.zip
Check types of statics in MIR typeck
Diffstat (limited to 'src/librustc_mir')
-rw-r--r--src/librustc_mir/borrow_check/type_check/mod.rs18
1 files changed, 16 insertions, 2 deletions
diff --git a/src/librustc_mir/borrow_check/type_check/mod.rs b/src/librustc_mir/borrow_check/type_check/mod.rs
index 232e7e6b83d..78f708b9a74 100644
--- a/src/librustc_mir/borrow_check/type_check/mod.rs
+++ b/src/librustc_mir/borrow_check/type_check/mod.rs
@@ -309,6 +309,7 @@ impl<'a, 'b, 'tcx> Visitor<'tcx> for TypeVerifier<'a, 'b, 'tcx> {
                 );
             }
         } else {
+            let tcx = self.tcx();
             if let ty::ConstKind::Unevaluated(def_id, substs, promoted) = constant.literal.val {
                 if let Some(promoted) = promoted {
                     let check_err = |verifier: &mut TypeVerifier<'a, 'b, 'tcx>,
@@ -358,10 +359,23 @@ impl<'a, 'b, 'tcx> Visitor<'tcx> for TypeVerifier<'a, 'b, 'tcx> {
                         );
                     }
                 }
+            } else if let Some(static_def_id) = constant.check_static_ptr(tcx) {
+                let unnormalized_ty = tcx.type_of(static_def_id);
+                let locations = location.to_locations();
+                let normalized_ty = self.cx.normalize(unnormalized_ty, locations);
+                let literal_ty = constant.literal.ty.builtin_deref(true).unwrap().ty;
+
+                if let Err(terr) = self.cx.eq_types(
+                    normalized_ty,
+                    literal_ty,
+                    locations,
+                    ConstraintCategory::Boring,
+                ) {
+                    span_mirbug!(self, constant, "bad static type {:?} ({:?})", constant, terr);
+                }
             }
-            if let ty::FnDef(def_id, substs) = constant.literal.ty.kind {
-                let tcx = self.tcx();
 
+            if let ty::FnDef(def_id, substs) = constant.literal.ty.kind {
                 let instantiated_predicates = tcx.predicates_of(def_id).instantiate(tcx, substs);
                 self.cx.normalize_and_prove_instantiated_predicates(
                     instantiated_predicates,