Add context

1 files changed, 49 insertions, 9 deletions

diff --git a/src/codec/encode.rs b/src/codec/encode.rs
index a40f551..70d9d5c 100644
--- a/src/codec/encode.rs
+++ b/src/codec/encode.rs
@@ -1,10 +1,10 @@
-use crate::codec::error::Error;
+use crate::{codec::error::Error, context::Context};
 use std::{io::Write, sync::Arc};
 
 macro_rules! impl_encode {
     ($t: ty) => {
         impl Encode for $t {
-            fn encode(self, buffer: &mut dyn Write) -> Result<usize, Error> {
+            fn encode(&self, buffer: &mut dyn Write, _: &dyn Context) -> Result<usize, Error> {
                 let size = buffer.write(&self.to_be_bytes())?;
                 Ok(size)
             }
@@ -13,26 +13,57 @@ macro_rules! impl_encode {
 }
 
 pub trait Encode {
-    fn encode(self, buffer: &mut dyn Write) -> Result<usize, Error>;
+    fn encode(&self, buffer: &mut dyn Write, ctx: &dyn Context) -> Result<usize, Error>;
 }
 
 impl Encode for bool {
-    fn encode(self, buffer: &mut dyn Write) -> Result<usize, Error> {
-        let size = buffer.write(&[self as u8])?;
+    fn encode(&self, buffer: &mut dyn Write, _: &dyn Context) -> Result<usize, Error> {
+        let size = buffer.write(&[*self as u8])?;
         Ok(size)
     }
 }
 
+impl<T: Encode> Encode for Option<T> {
+    fn encode(&self, buffer: &mut dyn Write, ctx: &dyn Context) -> Result<usize, Error> {
+        match self {
+            Some(val) => {
+                let mut size = 1u8.encode(buffer, ctx)?;
+                size += val.encode(buffer, ctx)?;
+                Ok(size)
+            }
+            None => 0u8.encode(buffer, ctx),
+        }
+    }
+}
+
+impl<T: Encode> Encode for Vec<T> {
+    fn encode(&self, buffer: &mut dyn Write, ctx: &dyn Context) -> Result<usize, Error> {
+        let mut size = self.len().encode(buffer, ctx)?;
+        for item in self {
+            size += item.encode(buffer, ctx)?;
+        }
+        Ok(size)
+    }
+}
+
+impl Encode for String {
+    fn encode(&self, buffer: &mut dyn Write, _: &dyn Context) -> Result<usize, Error> {
+        let utf8 = self.as_bytes();
+        buffer.write_all(utf8)?;
+        Ok(utf8.len())
+    }
+}
+
 impl Encode for Arc<[u8]> {
-    fn encode(self, buffer: &mut dyn Write) -> Result<usize, Error> {
-        let len = buffer.write(&self)?;
+    fn encode(&self, buffer: &mut dyn Write, _: &dyn Context) -> Result<usize, Error> {
+        let len = buffer.write(self)?;
         Ok(len)
     }
 }
 
 impl<const S: usize> Encode for [u8; S] {
-    fn encode(self, buffer: &mut dyn Write) -> Result<usize, Error> {
-        let len = buffer.write(&self)?;
+    fn encode(&self, buffer: &mut dyn Write, _ctx: &dyn Context) -> Result<usize, Error> {
+        let len = buffer.write(self)?;
         Ok(len)
     }
 }
@@ -53,3 +84,12 @@ impl_encode!(isize);
 
 impl_encode!(f32);
 impl_encode!(f64);
+
+impl<T> Encode for T
+where
+    T: AsRef<dyn Encode>,
+{
+    fn encode(&self, buffer: &mut dyn Write, ctx: &dyn Context) -> Result<usize, Error> {
+        self.as_ref().encode(buffer, ctx)
+    }
+}