From e920210e2f94ad85ff25c30ae902442d4e2872c2 Mon Sep 17 00:00:00 2001
From: Weiyuan Wu <youngw@sfu.ca>
Date: Tue, 7 Jun 2022 01:51:02 +0000
Subject: [PATCH] add missing rkyv derives

---
 src/datetime/mod.rs  | 4 ++++
 src/month.rs         | 4 ++++
 src/naive/isoweek.rs | 4 ++++
 src/oldtime.rs       | 4 ++++
 src/weekday.rs       | 4 ++++
 5 files changed, 20 insertions(+)

diff --git a/src/datetime/mod.rs b/src/datetime/mod.rs
index fe41b4cc..ab924a92 100644
--- a/src/datetime/mod.rs
+++ b/src/datetime/mod.rs
@@ -32,6 +32,9 @@ use crate::oldtime::Duration as OldDuration;
 use crate::Date;
 use crate::{Datelike, Timelike, Weekday};
 
+#[cfg(feature = "rkyv")]
+use rkyv::{Archive, Deserialize, Serialize};
+
 #[cfg(feature = "rustc-serialize")]
 pub(super) mod rustc_serialize;
 
@@ -79,6 +82,7 @@ pub enum SecondsFormat {
 /// the general-purpose constructors are all via the methods on the
 /// [`TimeZone`](./offset/trait.TimeZone.html) implementations.
 #[derive(Clone)]
+#[cfg_attr(feature = "rkyv", derive(Archive, Deserialize, Serialize))]
 pub struct DateTime<Tz: TimeZone> {
     datetime: NaiveDateTime,
     offset: Tz::Offset,
diff --git a/src/month.rs b/src/month.rs
index a87fe51e..7b642f9e 100644
--- a/src/month.rs
+++ b/src/month.rs
@@ -1,5 +1,8 @@
 use core::fmt;
 
+#[cfg(feature = "rkyv")]
+use rkyv::{Archive, Deserialize, Serialize};
+
 /// The month of the year.
 ///
 /// This enum is just a convenience implementation.
@@ -26,6 +29,7 @@ use core::fmt;
 // Actual implementation is zero-indexed, API intended as 1-indexed for more intuitive behavior.
 #[derive(PartialEq, Eq, Copy, Clone, Debug, Hash)]
 #[cfg_attr(feature = "rustc-serialize", derive(RustcEncodable, RustcDecodable))]
+#[cfg_attr(feature = "rkyv", derive(Archive, Deserialize, Serialize))]
 pub enum Month {
     /// January
     January = 0,
diff --git a/src/naive/isoweek.rs b/src/naive/isoweek.rs
index 3cadf6b1..dbddb034 100644
--- a/src/naive/isoweek.rs
+++ b/src/naive/isoweek.rs
@@ -7,6 +7,9 @@ use core::fmt;
 
 use super::internals::{DateImpl, Of, YearFlags};
 
+#[cfg(feature = "rkyv")]
+use rkyv::{Archive, Deserialize, Serialize};
+
 /// ISO 8601 week.
 ///
 /// This type, combined with [`Weekday`](../enum.Weekday.html),
@@ -14,6 +17,7 @@ use super::internals::{DateImpl, Of, YearFlags};
 /// One can retrieve this type from the existing [`Datelike`](../trait.Datelike.html) types
 /// via the [`Datelike::iso_week`](../trait.Datelike.html#tymethod.iso_week) method.
 #[derive(PartialEq, Eq, PartialOrd, Ord, Copy, Clone)]
+#[cfg_attr(feature = "rkyv", derive(Archive, Deserialize, Serialize))]
 pub struct IsoWeek {
     // note that this allows for larger year range than `NaiveDate`.
     // this is crucial because we have an edge case for the first and last week supported,
diff --git a/src/oldtime.rs b/src/oldtime.rs
index 388b71a4..57d199e2 100644
--- a/src/oldtime.rs
+++ b/src/oldtime.rs
@@ -16,6 +16,9 @@ use core::{fmt, i64};
 #[cfg(any(feature = "std", test))]
 use std::error::Error;
 
+#[cfg(feature = "rkyv")]
+use rkyv::{Archive, Deserialize, Serialize};
+
 /// The number of nanoseconds in a microsecond.
 const NANOS_PER_MICRO: i32 = 1000;
 /// The number of nanoseconds in a millisecond.
@@ -48,6 +51,7 @@ macro_rules! try_opt {
 ///
 /// This also allows for the negative duration; see individual methods for details.
 #[derive(Clone, Copy, PartialEq, Eq, PartialOrd, Ord, Debug)]
+#[cfg_attr(feature = "rkyv", derive(Archive, Deserialize, Serialize))]
 pub struct Duration {
     secs: i64,
     nanos: i32, // Always 0 <= nanos < NANOS_PER_SEC
diff --git a/src/weekday.rs b/src/weekday.rs
index 3b9d839f..58f61f2f 100644
--- a/src/weekday.rs
+++ b/src/weekday.rs
@@ -1,5 +1,8 @@
 use core::fmt;
 
+#[cfg(feature = "rkyv")]
+use rkyv::{Archive, Deserialize, Serialize};
+
 /// The day of week.
 ///
 /// The order of the days of week depends on the context.
@@ -7,6 +10,7 @@ use core::fmt;
 /// One should prefer `*_from_monday` or `*_from_sunday` methods to get the correct result.
 #[derive(PartialEq, Eq, Copy, Clone, Debug, Hash)]
 #[cfg_attr(feature = "rustc-serialize", derive(RustcEncodable, RustcDecodable))]
+#[cfg_attr(feature = "rkyv", derive(Archive, Deserialize, Serialize))]
 pub enum Weekday {
     /// Monday.
     Mon = 0,