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-rw-r--r--third_party/nix/src/libexpr/attr-set.hh11
1 files changed, 3 insertions, 8 deletions
diff --git a/third_party/nix/src/libexpr/attr-set.hh b/third_party/nix/src/libexpr/attr-set.hh
index a9db0db85644..6397008517d2 100644
--- a/third_party/nix/src/libexpr/attr-set.hh
+++ b/third_party/nix/src/libexpr/attr-set.hh
@@ -2,7 +2,6 @@
 #pragma once
 
 #include <absl/container/btree_map.h>
-#include <gc/gc_allocator.h>
 
 #include "libexpr/nixexpr.hh"
 #include "libexpr/symbol-table.hh"
@@ -14,7 +13,7 @@ class EvalState;
 struct Value;
 
 /* Map one attribute name to its value. */
-struct Attr : public gc {
+struct Attr {
   Symbol name;
   Value* value;  // TODO(tazjin): Who owns this?
   Pos* pos;      // TODO(tazjin): Who owns this?
@@ -22,13 +21,9 @@ struct Attr : public gc {
       : name(name), value(value), pos(pos){};
 };
 
-// Convenience alias for the backing map, with the garbage-collecting
-// allocator explicitly specified.
-using AttributeMap =
-    absl::btree_map<Symbol, Attr, std::less<Symbol>,
-                    traceable_allocator<std::pair<const Symbol, Attr>>>;
+using AttributeMap = absl::btree_map<Symbol, Attr>;
 
-class Bindings : public gc {
+class Bindings {
  public:
   typedef AttributeMap::iterator iterator;