py/parse: Factor logic when creating parse node from and-rule.

This commit is contained in:
Damien George 2015-10-08 23:13:18 +01:00
parent 02041bf2e0
commit 366239b8b9

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@ -625,11 +625,10 @@ mp_parse_tree_t mp_parse(mp_lexer_t *lex, mp_parse_input_kind_t input_kind) {
num_not_nil += 1;
}
}
if (emit_rule) {
if (emit_rule || num_not_nil != 1) {
// need to add rule when num_not_nil==0 for, eg, atom_paren, testlist_comp_3b
push_result_rule(&parser, rule_src_line, rule, i);
} else if (num_not_nil == 0) {
push_result_rule(&parser, rule_src_line, rule, i); // needed for, eg, atom_paren, testlist_comp_3b
} else if (num_not_nil == 1) {
} else {
// single result, leave it on stack
mp_parse_node_t pn = MP_PARSE_NODE_NULL;
for (mp_uint_t x = 0; x < i; ++x) {
@ -639,8 +638,6 @@ mp_parse_tree_t mp_parse(mp_lexer_t *lex, mp_parse_input_kind_t input_kind) {
}
}
push_result_node(&parser, pn);
} else {
push_result_rule(&parser, rule_src_line, rule, i);
}
break;
}