refactor variant serialization code

Factored out a lot of the serialization of variants into trait's that
have auto impl so code duplication is much reduced

1 files changed, 15 insertions, 1 deletions

diff --git a/src/primitive/datetime.rs b/src/primitive/datetime.rs
index 303716a..2159af3 100644
--- a/src/primitive/datetime.rs
+++ b/src/primitive/datetime.rs
@@ -1,4 +1,4 @@
-use crate::{deserialize::*, error::ProtocolError, serialize::*};
+use crate::{deserialize::*, error::ProtocolError, primitive, serialize::*};
 
 use time::{OffsetDateTime, PrimitiveDateTime, UtcOffset};
 
@@ -18,6 +18,8 @@ use time::{OffsetDateTime, PrimitiveDateTime, UtcOffset};
 pub type DateTime = OffsetDateTime;
 pub use time::{Date, Time};
 
+use crate::serialize::SerializeVariant;
+
 /// TimeSpec specifies whether the time is a local time, daylightsaving local time or a form of UTC Offset
 #[repr(i8)]
 #[derive(Copy, Clone, Debug, std::cmp::PartialEq)]
@@ -111,6 +113,10 @@ impl Deserialize for OffsetDateTime {
     }
 }
 
+impl SerializeVariant for OffsetDateTime {
+    const TYPE: u32 = primitive::QDATETIME;
+}
+
 impl Serialize for Date {
     fn serialize(&self) -> Result<Vec<std::primitive::u8>, ProtocolError> {
         let mut values: Vec<u8> = Vec::new();
@@ -130,6 +136,10 @@ impl Deserialize for Date {
     }
 }
 
+impl SerializeVariant for Date {
+    const TYPE: u32 = primitive::QDATE;
+}
+
 impl Serialize for Time {
     fn serialize(&self) -> Result<Vec<std::primitive::u8>, ProtocolError> {
         let mut values: Vec<u8> = Vec::new();
@@ -164,6 +174,10 @@ impl Deserialize for Time {
     }
 }
 
+impl SerializeVariant for Time {
+    const TYPE: u32 = primitive::QTIME;
+}
+
 #[test]
 pub fn datetime_serialize() {
     let datetime = DateTime::parse(