0.1.9: language changes.

- `Add` and `Sub` switches to associated types.

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "chrono"
-version = "0.1.8"
+version = "0.1.9"
 authors = ["Kang Seonghoon <public+rust@mearie.org>"]
 
 description = "Date and time library for Rust"
@@ -15,5 +15,5 @@ license = "MIT/Apache-2.0"
 name = "chrono"
 
 [dependencies]
-time = "0.1.7"
+time = "0.1.9"
 

README.md

@@ -1,4 +1,4 @@
-[Chrono][doc] 0.1.8
+[Chrono][doc] 0.1.9
 ===================
 
 [![Chrono on Travis CI][travis-image]][travis]

src/date.rs

@@ -263,22 +263,30 @@ impl<Off:Offset> hash::Hash for Date<Off> {
     fn hash(&self, state: &mut hash::sip::SipState) { self.date.hash(state) }
 }
 
-impl<Off:Offset> Add<Duration,Date<Off>> for Date<Off> {
+impl<Off:Offset> Add<Duration> for Date<Off> {
+    type Output = Date<Off>;
+
     fn add(self, rhs: Duration) -> Date<Off> {
         Date { date: self.date + rhs, offset: self.offset }
     }
 }
 
-impl<Off:Offset> Add<Date<Off>,Date<Off>> for Duration {
+impl<Off:Offset> Add<Date<Off>> for Duration {
+    type Output = Date<Off>;
+
     #[inline]
     fn add(self, rhs: Date<Off>) -> Date<Off> { rhs.add(self) }
 }
 
-impl<Off:Offset, Off2:Offset> Sub<Date<Off2>,Duration> for Date<Off> {
+impl<Off:Offset, Off2:Offset> Sub<Date<Off2>> for Date<Off> {
+    type Output = Duration;
+
     fn sub(self, rhs: Date<Off2>) -> Duration { self.date - rhs.date }
 }
 
-impl<Off:Offset> Sub<Duration,Date<Off>> for Date<Off> {
+impl<Off:Offset> Sub<Duration> for Date<Off> {
+    type Output = Date<Off>;
+
     #[inline]
     fn sub(self, rhs: Duration) -> Date<Off> { self.add(-rhs) }
 }

src/datetime.rs

@@ -184,22 +184,30 @@ impl<Off:Offset> hash::Hash for DateTime<Off> {
     fn hash(&self, state: &mut hash::sip::SipState) { self.datetime.hash(state) }
 }
 
-impl<Off:Offset> Add<Duration,DateTime<Off>> for DateTime<Off> {
+impl<Off:Offset> Add<Duration> for DateTime<Off> {
+    type Output = DateTime<Off>;
+
     fn add(self, rhs: Duration) -> DateTime<Off> {
         DateTime { datetime: self.datetime + rhs, offset: self.offset }
     }
 }
 
-impl<Off:Offset> Add<DateTime<Off>,DateTime<Off>> for Duration {
+impl<Off:Offset> Add<DateTime<Off>> for Duration {
+    type Output = DateTime<Off>;
+
     #[inline]
     fn add(self, rhs: DateTime<Off>) -> DateTime<Off> { rhs.add(self) }
 }
 
-impl<Off:Offset, Off2:Offset> Sub<DateTime<Off2>,Duration> for DateTime<Off> {
+impl<Off:Offset, Off2:Offset> Sub<DateTime<Off2>> for DateTime<Off> {
+    type Output = Duration;
+
     fn sub(self, rhs: DateTime<Off2>) -> Duration { self.datetime - rhs.datetime }
 }
 
-impl<Off:Offset> Sub<Duration,DateTime<Off>> for DateTime<Off> {
+impl<Off:Offset> Sub<Duration> for DateTime<Off> {
+    type Output = DateTime<Off>;
+
     #[inline]
     fn sub(self, rhs: Duration) -> DateTime<Off> { self.add(-rhs) }
 }

src/lib.rs

@@ -4,7 +4,7 @@
 
 /*!
 
-# Chrono 0.1.8
+# Chrono 0.1.9
 
 Date and time handling for Rust. (also known as `rust-chrono`)
 It aims to be a feature-complete superset of the [time](https://github.com/rust-lang/time) library.

src/naive/date.rs

@@ -378,7 +378,9 @@ impl Datelike for NaiveDate {
     }
 }
 
-impl Add<Duration,NaiveDate> for NaiveDate {
+impl Add<Duration> for NaiveDate {
+    type Output = NaiveDate;
+
     fn add(self, rhs: Duration) -> NaiveDate {
         // TODO overflow currently fails
 
@@ -396,12 +398,16 @@ impl Add<Duration,NaiveDate> for NaiveDate {
     }
 }
 
-impl Add<NaiveDate,NaiveDate> for Duration {
+impl Add<NaiveDate> for Duration {
+    type Output = NaiveDate;
+
     #[inline]
     fn add(self, rhs: NaiveDate) -> NaiveDate { rhs.add(self) }
 }
 
-impl Sub<NaiveDate,Duration> for NaiveDate {
+impl Sub<NaiveDate> for NaiveDate {
+    type Output = Duration;
+
     fn sub(self, rhs: NaiveDate) -> Duration {
         let year1 = self.year();
         let year2 = rhs.year();
@@ -413,7 +419,9 @@ impl Sub<NaiveDate,Duration> for NaiveDate {
     }
 }
 
-impl Sub<Duration,NaiveDate> for NaiveDate {
+impl Sub<Duration> for NaiveDate {
+    type Output = NaiveDate;
+
     #[inline]
     fn sub(self, rhs: Duration) -> NaiveDate { self.add(-rhs) }
 }

src/naive/datetime.rs

@@ -163,7 +163,9 @@ impl Timelike for NaiveDateTime {
     }
 }
 
-impl Add<Duration,NaiveDateTime> for NaiveDateTime {
+impl Add<Duration> for NaiveDateTime {
+    type Output = NaiveDateTime;
+
     fn add(self, rhs: Duration) -> NaiveDateTime {
         // Duration does not directly give its parts, so we need some additional calculations.
         let days = rhs.num_days();
@@ -184,18 +186,24 @@ impl Add<Duration,NaiveDateTime> for NaiveDateTime {
     }
 }
 
-impl Add<NaiveDateTime,NaiveDateTime> for Duration {
+impl Add<NaiveDateTime> for Duration {
+    type Output = NaiveDateTime;
+
     #[inline]
     fn add(self, rhs: NaiveDateTime) -> NaiveDateTime { rhs.add(self) }
 }
 
-impl Sub<NaiveDateTime,Duration> for NaiveDateTime {
+impl Sub<NaiveDateTime> for NaiveDateTime {
+    type Output = Duration;
+
     fn sub(self, rhs: NaiveDateTime) -> Duration {
         (self.date - rhs.date) + (self.time - rhs.time)
     }
 }
 
-impl Sub<Duration,NaiveDateTime> for NaiveDateTime {
+impl Sub<Duration> for NaiveDateTime {
+    type Output = NaiveDateTime;
+
     #[inline]
     fn sub(self, rhs: Duration) -> NaiveDateTime { self.add(-rhs) }
 }

src/naive/time.rs

@@ -172,7 +172,9 @@ impl Timelike for NaiveTime {
     }
 }
 
-impl Add<Duration,NaiveTime> for NaiveTime {
+impl Add<Duration> for NaiveTime {
+    type Output = NaiveTime;
+
     fn add(self, rhs: Duration) -> NaiveTime {
         // there is no direct interface in `Duration` to get only the nanosecond part,
         // so we need to do the additional calculation here.
@@ -191,12 +193,16 @@ impl Add<Duration,NaiveTime> for NaiveTime {
     }
 }
 
-impl Add<NaiveTime,NaiveTime> for Duration {
+impl Add<NaiveTime> for Duration {
+    type Output = NaiveTime;
+
     #[inline]
     fn add(self, rhs: NaiveTime) -> NaiveTime { rhs.add(self) }
 }
 
-impl Sub<NaiveTime,Duration> for NaiveTime {
+impl Sub<NaiveTime> for NaiveTime {
+    type Output = Duration;
+
     fn sub(self, rhs: NaiveTime) -> Duration {
         // the number of whole non-leap seconds
         let secs = self.secs as i64 - rhs.secs as i64 - 1;
@@ -213,7 +219,9 @@ impl Sub<NaiveTime,Duration> for NaiveTime {
     }
 }
 
-impl Sub<Duration,NaiveTime> for NaiveTime {
+impl Sub<Duration> for NaiveTime {
+    type Output = NaiveTime;
+
     #[inline]
     fn sub(self, rhs: Duration) -> NaiveTime { self.add(-rhs) }
 }

src/time.rs

@@ -112,22 +112,30 @@ impl<Off:Offset> hash::Hash for Time<Off> {
     fn hash(&self, state: &mut hash::sip::SipState) { self.time.hash(state) }
 }
 
-impl<Off:Offset> Add<Duration,Time<Off>> for Time<Off> {
+impl<Off:Offset> Add<Duration> for Time<Off> {
+    type Output = Time<Off>;
+
     fn add(self, rhs: Duration) -> Time<Off> {
         Time { time: self.time + rhs, offset: self.offset }
     }
 }
 
-impl<Off:Offset> Add<Time<Off>,Time<Off>> for Duration {
+impl<Off:Offset> Add<Time<Off>> for Duration {
+    type Output = Time<Off>;
+
     #[inline]
     fn add(self, rhs: Time<Off>) -> Time<Off> { rhs.add(self) }
 }
 
-impl<Off:Offset, Off2:Offset> Sub<Time<Off2>,Duration> for Time<Off> {
+impl<Off:Offset, Off2:Offset> Sub<Time<Off2>> for Time<Off> {
+    type Output = Duration;
+
     fn sub(self, rhs: Time<Off2>) -> Duration { self.time - rhs.time }
 }
 
-impl<Off:Offset> Sub<Duration,Time<Off>> for Time<Off> {
+impl<Off:Offset> Sub<Duration> for Time<Off> {
+    type Output = Time<Off>;
+
     #[inline]
     fn sub(self, rhs: Duration) -> Time<Off> { self.add(-rhs) }
 }