feat: default postcard 1.0

libraries/native_model/Cargo.toml

@@ -23,6 +23,7 @@ native_model_macro = { version = "0.3.30", path = "native_model_macro" }
 serde = { version = "1.0", features = ["derive"], optional = true }
 bincode_1_3 = { package = "bincode", version = "1.3", optional = true }
 bincode_2_rc = { package = "bincode", version = "2.0.0-rc.3", features = ["serde"], optional = true }
+postcard_1_0 = { package = "postcard", version = "1.0", features = ["alloc"], optional = true }
 
 [dev-dependencies]
 serde_json = "1.0"
@@ -30,7 +31,7 @@ criterion = { version = "0.5.1" }
 skeptic = "0.13"
 
 [features]
-default = ["serde", "bincode_1_3", "bincode_2_rc"]
+default = ["serde", "bincode_1_3", "bincode_2_rc", "postcard_1_0"]
 
 [[bench]]
 name = "overhead"

libraries/native_model/src/codec/mod.rs

@@ -1,5 +1,6 @@
 pub mod bincode_1_3;
 pub mod bincode_2_rc;
+pub mod postcard_1_0;
 
 /// Encode trait for your own encoding method.
 ///

libraries/native_model/src/codec/postcard_1_0.rs

@@ -0,0 +1,18 @@
+use postcard_1_0::{from_bytes, to_allocvec, Error};
+use serde::{Deserialize, Serialize};
+
+pub struct PostCard;
+
+impl<T: Serialize> super::Encode<T> for PostCard {
+    type Error = Error;
+    fn encode(obj: &T) -> Result<Vec<u8>, Error> {
+        Ok(to_allocvec(obj)?)
+    }
+}
+
+impl<T: for<'a> Deserialize<'a>> super::Decode<T> for PostCard {
+    type Error = Error;
+    fn decode(data: Vec<u8>) -> Result<T, Error> {
+        Ok(from_bytes(&data)?)
+    }
+}

libraries/native_model/tests_crate/Cargo.toml

@@ -3,11 +3,11 @@ name = "tests_crate"
 version = "0.1.0"
 edition = "2021"
 
-
 [workspace]
 
 [dev-dependencies]
 native_model = { path = "../" }
 serde = { version = "1.0", features = ["derive"] }
 bincode = { version = "2.0.0-rc.3", features = ["serde"] }
-anyhow = "1.0.44"
+anyhow = "1.0"
+postcard = { version = "1.0", features = ["alloc"] }

libraries/native_model/tests_crate/tests/example/default_codec/bincode_2_rc.rs

@@ -1,4 +1,4 @@
-use native_model::{native_model, bincode_2_rc};
+use native_model::{native_model};
 use serde::Deserialize;
 use serde::Serialize;
 

libraries/native_model/tests_crate/tests/example/default_codec/mod.rs

@@ -1,2 +1,3 @@
 mod bincode_1_3;
-mod bincode_2_rc;
+mod bincode_2_rc;
+mod postcard_1_0;

libraries/native_model/tests_crate/tests/example/default_codec/postcard_1_0.rs

@@ -0,0 +1,18 @@
+use native_model::{native_model};
+use serde::Deserialize;
+use serde::Serialize;
+
+#[derive(Serialize, Deserialize, PartialEq, Debug)]
+#[native_model(id = 1, version = 1, with = native_model::postcard_1_0::PostCard)]
+struct Example {
+    a: u32,
+    b: u32,
+}
+
+#[test]
+fn encode_decode() {
+    let example = Example { a: 1, b: 2 };
+    let bytes = native_model::encode(&example).unwrap();
+    let (example, _) = native_model::decode::<Example>(bytes).unwrap();
+    assert_eq!(example, Example { a: 1, b: 2 });
+}