diff options
Diffstat (limited to 'py/parse.c')
| -rw-r--r-- | py/parse.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/py/parse.c b/py/parse.c index 7da484c497..1ec995cd8f 100644 --- a/py/parse.c +++ b/py/parse.c @@ -461,6 +461,8 @@ STATIC const mp_rom_map_elem_t mp_constants_table[] = { STATIC MP_DEFINE_CONST_MAP(mp_constants_map, mp_constants_table); #endif +STATIC void push_result_rule(parser_t *parser, size_t src_line, const rule_t *rule, size_t num_args); + #if MICROPY_COMP_CONST_FOLDING STATIC bool fold_constants(parser_t *parser, const rule_t *rule, size_t num_args) { // this code does folding of arbitrary integer expressions, eg 1 + 2 * 3 + 4 @@ -587,6 +589,15 @@ STATIC bool fold_constants(parser_t *parser, const rule_t *rule, size_t num_args assert(elem->value == MP_OBJ_NULL); elem->value = MP_OBJ_NEW_SMALL_INT(value); + // If the constant starts with an underscore then treat it as a private + // variable and don't emit any code to store the value to the id. + if (qstr_str(id)[0] == '_') { + pop_result(parser); // pop const(value) + pop_result(parser); // pop id + push_result_rule(parser, 0, rules[RULE_pass_stmt], 0); // replace with "pass" + return true; + } + // replace const(value) with value pop_result(parser); push_result_node(parser, pn_value); |