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Deduplicate logic in datetime_to_timespec() callers

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This commit is contained in:
Dirkjan Ochtman 2022-04-07 15:40:36 +02:00
parent 5ac1934bfe
commit 8c53efe3cc
1 changed files with 12 additions and 19 deletions
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31
src/offset/local.rs
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@ -65,7 +65,7 @@ fn tm_to_datetime(mut tm: Tm) -> DateTime<Local> {
/// Converts a local `NaiveDateTime` to the `time::Timespec`.
#[cfg(not(all(target_arch = "wasm32", not(target_os = "wasi"), feature = "wasmbind")))]
fn datetime_to_timespec(d: &NaiveDateTime, local: bool) -> Timespec {
fn naive_to_local(d: &NaiveDateTime, local: bool) -> DateTime<Local> {
let tm = Tm {
tm_sec: d.second() as i32,
tm_min: d.minute() as i32,
@ -82,13 +82,20 @@ fn datetime_to_timespec(d: &NaiveDateTime, local: bool) -> Timespec {
tm_nsec: 0,
};
Timespec {
let spec = Timespec {
sec: match local {
false => utc_tm_to_time(&tm),
true => local_tm_to_time(&tm),
},
nsec: tm.tm_nsec,
}
};
// Adjust for leap seconds
let mut tm = spec.local();
assert_eq!(tm.tm_nsec, 0);
tm.tm_nsec = d.nanosecond() as i32;
tm_to_datetime(tm)
}
/// The local timescale. This is implemented via the standard `time` crate.
@ -177,14 +184,7 @@ impl TimeZone for Local {
#[cfg(not(all(target_arch = "wasm32", not(target_os = "wasi"), feature = "wasmbind")))]
fn from_local_datetime(&self, local: &NaiveDateTime) -> LocalResult<DateTime<Local>> {
let timespec = datetime_to_timespec(local, true);
// datetime_to_timespec completely ignores leap seconds, so we need to adjust for them
let mut tm = timespec.local();
assert_eq!(tm.tm_nsec, 0);
tm.tm_nsec = local.nanosecond() as i32;
LocalResult::Single(tm_to_datetime(tm))
LocalResult::Single(naive_to_local(local, true))
}
fn from_utc_date(&self, utc: &NaiveDate) -> Date<Local> {
@ -201,14 +201,7 @@ impl TimeZone for Local {
#[cfg(not(all(target_arch = "wasm32", not(target_os = "wasi"), feature = "wasmbind")))]
fn from_utc_datetime(&self, utc: &NaiveDateTime) -> DateTime<Local> {
let timespec = datetime_to_timespec(utc, false);
// datetime_to_timespec completely ignores leap seconds, so we need to adjust for them
let mut tm = timespec.local();
assert_eq!(tm.tm_nsec, 0);
tm.tm_nsec = utc.nanosecond() as i32;
tm_to_datetime(tm)
naive_to_local(utc, false)
}
}