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path: root/src/librustc/hir/def_id.rs
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-rw-r--r--src/librustc/hir/def_id.rs6
1 files changed, 0 insertions, 6 deletions
diff --git a/src/librustc/hir/def_id.rs b/src/librustc/hir/def_id.rs
index f3edb5f8621..c0a661908a6 100644
--- a/src/librustc/hir/def_id.rs
+++ b/src/librustc/hir/def_id.rs
@@ -12,10 +12,6 @@ newtype_index! {
 
 #[derive(Copy, Clone, PartialEq, Eq, PartialOrd, Ord, Hash)]
 pub enum CrateNum {
-    /// Virtual crate for builtin macros
-    // FIXME(jseyfried): this is also used for custom derives until proc-macro crates get
-    // `CrateNum`s.
-    BuiltinMacros,
     /// A special CrateNum that we use for the tcx.rcache when decoding from
     /// the incr. comp. cache.
     ReservedForIncrCompCache,
@@ -26,7 +22,6 @@ impl ::std::fmt::Debug for CrateNum {
     fn fmt(&self, fmt: &mut ::std::fmt::Formatter<'_>) -> ::std::fmt::Result {
         match self {
             CrateNum::Index(id) => write!(fmt, "crate{}", id.private),
-            CrateNum::BuiltinMacros => write!(fmt, "builtin macros crate"),
             CrateNum::ReservedForIncrCompCache => write!(fmt, "crate for decoding incr comp cache"),
         }
     }
@@ -86,7 +81,6 @@ impl fmt::Display for CrateNum {
     fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
         match self {
             CrateNum::Index(id) => fmt::Display::fmt(&id.private, f),
-            CrateNum::BuiltinMacros => write!(f, "builtin macros crate"),
             CrateNum::ReservedForIncrCompCache => write!(f, "crate for decoding incr comp cache"),
         }
     }