1 files changed, 12 insertions, 1 deletions

diff --git a/types.cpp b/types.cpp
index 7988c59..edeeb99 100644
--- a/types.cpp
+++ b/types.cpp
@@ -27,11 +27,22 @@ Pair::~Pair() {
     gc.expose(cdr);
 }
 
+void Pair::gc_decrement() {
+    if (car->is_container())
+        static_cast<Container*>(car)->gc_refs--;
+    if (cdr->is_container())
+        static_cast<Container*>(cdr)->gc_refs--;
+}
+
+void Pair::gc_trigger(EvalObj ** &tail) {
+    *tail++ = car;
+    *tail++ = cdr;
+}
+
 ReprCons *Pair::get_repr_cons() {
     return new PairReprCons(this, this);
 }
 
-
 ParseBracket::ParseBracket(unsigned char _btype) :
     FrameObj(CLS_SIM_OBJ | CLS_PAR_BRA), btype(_btype) {}