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[Bug #19292] Re-initialize tm when wday or yday is not set

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This commit is contained in:
Nobuyoshi Nakada 2023-01-01 16:39:00 +09:00
parent f527a0911d
commit 542e984d82
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GPG Key ID: 7CD2805BFA3770C6
Notes: git 2025-06-06 00:31:58 +00:00 
Merged: https://github.com/ruby/ruby/pull/7051
2 changed files with 24 additions and 10 deletions
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3
test/ruby/test_time.rb
View File

@ -54,7 +54,8 @@ class TestTime < Test::Unit::TestCase
assert_raise_with_message(ArgumentError, msg) { Time.new(2021, 1, "+09:99") }
assert_raise_with_message(ArgumentError, msg) { Time.new(2021, "+09:99") }
assert_equal([0, 0, 0, 2, 1, 2000], Time.new(2000, 1, 1, 24, 0, 0, "-00:00").to_a[0, 6])
assert_equal([0, 0, 0, 1, 1, 2000, 6, 1, false, "UTC"], Time.new(2000, 1, 1, 0, 0, 0, "-00:00").to_a)
assert_equal([0, 0, 0, 2, 1, 2000, 0, 2, false, "UTC"], Time.new(2000, 1, 1, 24, 0, 0, "-00:00").to_a)
end
def test_new_from_string

31
time.c
View File

@ -1790,6 +1790,7 @@ PACKED_STRUCT_UNALIGNED(struct time_object {
(tobj1)->vtm.utc_offset = (tobj2)->vtm.utc_offset, \
(tobj1)->vtm.zone = (tobj2)->vtm.zone)
static int zone_localtime(VALUE zone, VALUE time);
static VALUE time_get_tm(VALUE, struct time_object *);
#define MAKE_TM(time, tobj) \
do { \
@ -1801,11 +1802,21 @@ static VALUE time_get_tm(VALUE, struct time_object *);
do { \
MAKE_TM(time, tobj); \
if (!(cond)) { \
VALUE zone = (tobj)->vtm.zone; \
if (!NIL_P(zone)) zone_localtime(zone, (time)); \
force_make_tm(time, tobj); \
} \
} while (0)
static inline void
force_make_tm(VALUE time, struct time_object *tobj)
{
VALUE zone = tobj->vtm.zone;
if (!NIL_P(zone) && zone != str_empty && zone != str_utc) {
if (zone_localtime(zone, time)) return;
}
tobj->tm_got = 0;
time_get_tm(time, tobj);
}
static void
time_mark(void *ptr)
{
@ -2070,19 +2081,20 @@ vtm_add_day(struct vtm *vtm, int day)
vtm->mday = 31;
vtm->mon = 12; /* December */
vtm->year = subv(vtm->year, INT2FIX(1));
vtm->yday = leap_year_v_p(vtm->year) ? 366 : 365;
if (vtm->yday != 0)
vtm->yday = leap_year_v_p(vtm->year) ? 366 : 365;
}
else if (vtm->mday == 1) {
const int8_t *days_in_month = days_in_month_in_v(vtm->year);
vtm->mon--;
vtm->mday = days_in_month[vtm->mon-1];
vtm->yday--;
if (vtm->yday != 0) vtm->yday--;
}
else {
vtm->mday--;
vtm->yday--;
if (vtm->yday != 0) vtm->yday--;
}
vtm->wday = (vtm->wday + 6) % 7;
if (vtm->wday != VTM_WDAY_INITVAL) vtm->wday = (vtm->wday + 6) % 7;
}
else {
int leap = leap_year_v_p(vtm->year);
@ -2095,13 +2107,13 @@ vtm_add_day(struct vtm *vtm, int day)
else if (vtm->mday == days_in_month_of(leap)[vtm->mon-1]) {
vtm->mon++;
vtm->mday = 1;
vtm->yday++;
if (vtm->yday != 0) vtm->yday++;
}
else {
vtm->mday++;
vtm->yday++;
if (vtm->yday != 0) vtm->yday++;
}
vtm->wday = (vtm->wday + 1) % 7;
if (vtm->wday != VTM_WDAY_INITVAL) vtm->wday = (vtm->wday + 1) % 7;
}
}
}
@ -2449,6 +2461,7 @@ time_init_vtm(VALUE time, struct vtm vtm, VALUE zone)
if (utc == UTC_ZONE) {
tobj->timew = timegmw(&vtm);
vtm.isdst = 0; /* No DST in UTC */
vtm_day_wraparound(&vtm);
tobj->vtm = vtm;
tobj->tm_got = 1;