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-rw-r--r--gc.c7
1 files changed, 5 insertions, 2 deletions
diff --git a/gc.c b/gc.c
index 217d23be4c..6133fe5c6c 100644
--- a/gc.c
+++ b/gc.c
@@ -292,8 +292,11 @@ int *ruby_initial_gc_stress_ptr = &rb_objspace.gc_stress;
#if SIZEOF_LONG == SIZEOF_VOIDP
# define nonspecial_obj_id(obj) (VALUE)((SIGNED_VALUE)(obj)|FIXNUM_FLAG)
+# define obj_id_to_ref(objid) ((objid) ^ FIXNUM_FLAG) /* unset FIXNUM_FLAG */
#elif SIZEOF_LONG_LONG == SIZEOF_VOIDP
# define nonspecial_obj_id(obj) LL2NUM((SIGNED_VALUE)(obj) / 2)
+# define obj_id_to_ref(objid) (FIXNUM_P(objid) ? \
+ ((objid) ^ FIXNUM_FLAG) : (NUM2PTR(objid) << 1))
#else
# error not supported
#endif
@@ -1630,7 +1633,7 @@ id2ref(VALUE obj, VALUE objid)
if (ptr == Qnil) return Qnil;
if (FIXNUM_P(ptr)) return (VALUE)ptr;
if (FLONUM_P(ptr)) return (VALUE)ptr;
- ptr = objid ^ FIXNUM_FLAG; /* unset FIXNUM_FLAG */
+ ptr = obj_id_to_ref(objid);
if ((ptr % sizeof(RVALUE)) == (4 << 2)) {
ID symid = ptr / sizeof(RVALUE);
@@ -3795,7 +3798,7 @@ wmap_finalize(VALUE self, VALUE objid)
TypedData_Get_Struct(self, struct weakmap, &weakmap_type, w);
/* Get reference from object id. */
- obj = objid ^ FIXNUM_FLAG; /* unset FIXNUM_FLAG */
+ obj = obj_id_to_ref(objid);
/* obj is original referenced object and/or weak reference. */
orig = (st_data_t)obj;