py: Add option to disable set() object (enabled by default).

py/builtintables.c

@@ -64,7 +64,9 @@ STATIC const mp_map_elem_t mp_builtin_object_table[] = {
     { MP_OBJ_NEW_QSTR(MP_QSTR_property), (mp_obj_t)&mp_type_property },
 #endif
     { MP_OBJ_NEW_QSTR(MP_QSTR_range), (mp_obj_t)&mp_type_range },
+#if MICROPY_PY_BUILTINS_SET
     { MP_OBJ_NEW_QSTR(MP_QSTR_set), (mp_obj_t)&mp_type_set },
+#endif
     { MP_OBJ_NEW_QSTR(MP_QSTR_str), (mp_obj_t)&mp_type_str },
     { MP_OBJ_NEW_QSTR(MP_QSTR_super), (mp_obj_t)&mp_type_super },
     { MP_OBJ_NEW_QSTR(MP_QSTR_tuple), (mp_obj_t)&mp_type_tuple },

py/mpconfig.h

@@ -239,6 +239,11 @@ typedef double mp_float_t;
 /*****************************************************************************/
 /* Fine control over Python builtins, classes, modules, etc                  */
 
+// Whether to support set object
+#ifndef MICROPY_PY_BUILTINS_SET
+#define MICROPY_PY_BUILTINS_SET (1)
+#endif
+
 // Whether to support slice subscript operators and slice object
 #ifndef MICROPY_PY_BUILTINS_SLICE
 #define MICROPY_PY_BUILTINS_SLICE (1)

py/objset.c

@@ -37,6 +37,8 @@
 #include "runtime0.h"
 #include "builtin.h"
 
+#if MICROPY_PY_BUILTINS_SET
+
 typedef struct _mp_obj_set_t {
     mp_obj_base_t base;
     mp_set_t set;
@@ -584,3 +586,5 @@ void mp_obj_set_store(mp_obj_t self_in, mp_obj_t item) {
     mp_obj_set_t *self = self_in;
     mp_set_lookup(&self->set, item, MP_MAP_LOOKUP_ADD_IF_NOT_FOUND);
 }
+
+#endif // MICROPY_PY_BUILTINS_SET

py/runtime.c

@@ -1173,8 +1173,10 @@ void *const mp_fun_table[MP_F_NUMBER_OF] = {
     mp_obj_list_append,
     mp_obj_new_dict,
     mp_obj_dict_store,
+#if MICROPY_PY_BUILTINS_SET
     mp_obj_new_set,
     mp_obj_set_store,
+#endif
     mp_make_function_from_raw_code,
     mp_call_function_n_kw_for_native,
     mp_call_method_n_kw,

py/runtime0.h

@@ -115,8 +115,10 @@ typedef enum {
     MP_F_LIST_APPEND,
     MP_F_BUILD_MAP,
     MP_F_STORE_MAP,
+#if MICROPY_PY_BUILTINS_SET
     MP_F_BUILD_SET,
     MP_F_STORE_SET,
+#endif
     MP_F_MAKE_FUNCTION_FROM_RAW_CODE,
     MP_F_CALL_FUNCTION_N_KW_FOR_NATIVE,
     MP_F_CALL_METHOD_N_KW,

py/vm.c

@@ -772,6 +772,7 @@ unwind_jump:
                     sp -= 2;
                     DISPATCH();
 
+#if MICROPY_PY_BUILTINS_SET
                 ENTRY(MP_BC_BUILD_SET):
                     DECODE_UINT;
                     sp -= unum - 1;
@@ -784,6 +785,7 @@ unwind_jump:
                     mp_obj_set_store(sp[-unum], sp[0]);
                     sp--;
                     DISPATCH();
+#endif
 
 #if MICROPY_PY_BUILTINS_SLICE
                 ENTRY(MP_BC_BUILD_SLICE):