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authorjumbatm <30644300+jumbatm@users.noreply.github.com>2020-08-16 10:41:59 +1000
committerjumbatm <30644300+jumbatm@users.noreply.github.com>2020-08-18 02:01:04 +1000
commita1fa4e05acb2cbda9a02cc34f8000c965328dbde (patch)
tree5aa1165711f94b421ac1a998e7389c37896c7d0c /src
parent154b74e8f959581d37d1a1ae860ee1bf7b682f34 (diff)
downloadrust-a1fa4e05acb2cbda9a02cc34f8000c965328dbde.tar.gz
rust-a1fa4e05acb2cbda9a02cc34f8000c965328dbde.zip
Remove unnecessary rebinding of def ids.
Diffstat (limited to 'src')
-rw-r--r--src/librustc_lint/builtin.rs16
1 files changed, 5 insertions, 11 deletions
diff --git a/src/librustc_lint/builtin.rs b/src/librustc_lint/builtin.rs
index 0e578ac5034..47f680932f1 100644
--- a/src/librustc_lint/builtin.rs
+++ b/src/librustc_lint/builtin.rs
@@ -2228,18 +2228,15 @@ impl ClashingExternDeclarations {
                         };
 
                         match (a_kind, b_kind) {
-                            (Adt(_, a_substs), Adt(_, b_substs)) => {
+                            (Adt(a_def, a_substs), Adt(b_def, b_substs)) => {
                                 let a = a.subst(cx.tcx, a_substs);
                                 let b = b.subst(cx.tcx, b_substs);
                                 debug!("Comparing {:?} and {:?}", a, b);
 
-                                if let (Adt(a_def, ..), Adt(b_def, ..)) = (&a.kind, &b.kind) {
-                                    // Grab a flattened representation of all fields.
-                                    let a_fields =
-                                        a_def.variants.iter().flat_map(|v| v.fields.iter());
-                                    let b_fields =
-                                        b_def.variants.iter().flat_map(|v| v.fields.iter());
-                                    compare_layouts(a, b)
+                                // Grab a flattened representation of all fields.
+                                let a_fields = a_def.variants.iter().flat_map(|v| v.fields.iter());
+                                let b_fields = b_def.variants.iter().flat_map(|v| v.fields.iter());
+                                compare_layouts(a, b)
                             && a_fields.eq_by(
                                 b_fields,
                                 |&ty::FieldDef { did: a_did, .. },
@@ -2253,9 +2250,6 @@ impl ClashingExternDeclarations {
                                     )
                                 },
                             )
-                                } else {
-                                    unreachable!()
-                                }
                             }
                             (Array(a_ty, a_const), Array(b_ty, b_const)) => {
                                 // For arrays, we also check the constness of the type.