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authorHannah McLaughlin <h@mcla.ug>2020-11-15 21:14:00 +0000
committerHannah McLaughlin <h@mcla.ug>2020-11-18 21:20:51 +0000
commitd38dbcb19f6ef1c5ffcf7869767674ef3d6d045f (patch)
tree4981adebb60be32c7874de8cd058d99b4a081686 /compiler
parent071d8b14dab01f636aa4c8ec707a59a00bfa356d (diff)
downloadrust-d38dbcb19f6ef1c5ffcf7869767674ef3d6d045f.tar.gz
rust-d38dbcb19f6ef1c5ffcf7869767674ef3d6d045f.zip
Improve error message when we try to get_type on something that does not have a type
Diffstat (limited to 'compiler')
-rw-r--r--compiler/rustc_metadata/src/rmeta/decoder.rs7
1 files changed, 6 insertions, 1 deletions
diff --git a/compiler/rustc_metadata/src/rmeta/decoder.rs b/compiler/rustc_metadata/src/rmeta/decoder.rs
index a1df1a63fc5..19340dd51de 100644
--- a/compiler/rustc_metadata/src/rmeta/decoder.rs
+++ b/compiler/rustc_metadata/src/rmeta/decoder.rs
@@ -947,7 +947,12 @@ impl<'a, 'tcx> CrateMetadataRef<'a> {
     }
 
     fn get_type(&self, id: DefIndex, tcx: TyCtxt<'tcx>) -> Ty<'tcx> {
-        self.root.tables.ty.get(self, id).unwrap().decode((self, tcx))
+        self.root
+            .tables
+            .ty
+            .get(self, id)
+            .unwrap_or_else(|| panic!("Not a type: {:?}", id))
+            .decode((self, tcx))
     }
 
     fn get_stability(&self, id: DefIndex) -> Option<attr::Stability> {