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-rw-r--r--py/objtuple.c11
1 files changed, 11 insertions, 0 deletions
diff --git a/py/objtuple.c b/py/objtuple.c
index 83d1f21cea..3378b4ec1c 100644
--- a/py/objtuple.c
+++ b/py/objtuple.c
@@ -218,6 +218,17 @@ void mp_obj_tuple_del(mp_obj_t self_in) {
m_del_var(mp_obj_tuple_t, mp_obj_t, self->len, self);
}
+machine_int_t mp_obj_tuple_hash(mp_obj_t self_in) {
+ assert(MP_OBJ_IS_TYPE(self_in, &tuple_type));
+ mp_obj_tuple_t *self = self_in;
+ // start hash with pointer to empty tuple, to make it fairly unique
+ machine_int_t hash = (machine_int_t)mp_const_empty_tuple;
+ for (uint i = 0; i < self->len; i++) {
+ hash += mp_obj_hash(self->items[i]);
+ }
+ return hash;
+}
+
/******************************************************************************/
/* tuple iterator */