1 files changed, 58 insertions, 0 deletions
diff --git a/py/objset.c b/py/objset.c
new file mode 100644
index 0000000000..f225ca7f66
--- /dev/null
+++ b/py/objset.c
@@ -0,0 +1,58 @@
+#include <stdlib.h>
+#include <stdint.h>
+#include <assert.h>
+
+#include "nlr.h"
+#include "misc.h"
+#include "mpconfig.h"
+#include "obj.h"
+#include "map.h"
+
+typedef struct _mp_obj_set_t {
+    mp_obj_base_t base;
+    mp_set_t set;
+} mp_obj_set_t;
+
+void set_print(void (*print)(void *env, const char *fmt, ...), void *env, mp_obj_t self_in) {
+    mp_obj_set_t *self = self_in;
+    bool first = true;
+    print(env, "{");
+    for (int i = 0; i < self->set.alloc; i++) {
+        if (self->set.table[i] != MP_OBJ_NULL) {
+            if (!first) {
+                print(env, ", ");
+            }
+            first = false;
+            mp_obj_print_helper(print, env, self->set.table[i]);
+        }
+    }
+    print(env, "}");
+}
+
+static const mp_obj_type_t set_type = {
+    { &mp_const_type },
+    "set",
+    set_print, // print
+    NULL, // call_n
+    NULL, // unary_op
+    NULL, // binary_op
+    NULL, // getiter
+    NULL, // iternext
+    { { NULL, NULL }, }, // method list
+};
+
+mp_obj_t mp_obj_new_set(int n_args, mp_obj_t *items) {
+    mp_obj_set_t *o = m_new_obj(mp_obj_set_t);
+    o->base.type = &set_type;
+    mp_set_init(&o->set, n_args);
+    for (int i = 0; i < n_args; i++) {
+        mp_set_lookup(&o->set, items[i], true);
+    }
+    return o;
+}
+
+void mp_obj_set_store(mp_obj_t self_in, mp_obj_t item) {
+    assert(MP_OBJ_IS_TYPE(self_in, &set_type));
+    mp_obj_set_t *self = self_in;
+    mp_set_lookup(&self->set, item, true);
+}