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Fixed reserved numbered parameter warning

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This commit is contained in:
Nobuyoshi Nakada 2019-09-19 19:40:44 +09:00
parent 6180f1fede
commit 2698f13a1f
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2 changed files with 8 additions and 3 deletions
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10
parse.y
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@ -170,9 +170,13 @@ struct local_vars {
enum {
ORDINAL_PARAM = -1,
NO_PARAM = 0,
NUMPARAM_MAX = 100,
NUMPARAM_MAX = 9,
};
#define NUMPARAM_ID_P(id) (is_local_id(id) && NUMPARAM_ID_TO_IDX(id) <= NUMPARAM_MAX)
#define NUMPARAM_ID_TO_IDX(id) (unsigned int)(((id) >> ID_SCOPE_SHIFT) - tNUMPARAM_0)
#define NUMPARAM_IDX_TO_ID(idx) TOKEN2LOCALID((tNUMPARAM_0 + (idx)))
#define DVARS_INHERIT ((void*)1)
#define DVARS_TOPSCOPE NULL
#define DVARS_TERMINAL_P(tbl) ((tbl) == DVARS_INHERIT || (tbl) == DVARS_TOPSCOPE)
@ -11705,9 +11709,9 @@ arg_var(struct parser_params *p, ID id)
static void
local_var(struct parser_params *p, ID id)
{
if (id >= idNUMPARAM_0 && id <= idNUMPARAM_9) {
if (NUMPARAM_ID_P(id)) {
rb_warn1("`_%d' is used as numbered parameter",
WARN_I((int)(id - idNUMPARAM_0)));
WARN_I(NUMPARAM_ID_TO_IDX(id)));
}
vtable_add(p->lvtbl->vars, id);
if (p->lvtbl->used) {

1
test/ruby/test_syntax.rb
View file

@ -1459,6 +1459,7 @@ eom
assert_syntax_error('proc {@1_}', /unexpected/)
assert_syntax_error('proc {@9999999999999999}', /too large/)
assert_syntax_error('@1', /outside block/)
assert_warn(/`_2' is used as numbered parameter/) {eval('_2=1')}
end
def test_value_expr_in_condition