first pass of merging in warp (doesn't build)

crates/cloud_object_models/src/json_model.rs

@@ -0,0 +1,42 @@
+#[cfg(not(target_family = "wasm"))]
+pub mod persistence;
+
+use std::fmt::Debug;
+
+use anyhow::Result;
+use cloud_objects::cloud_object::{
+    GenericStringObjectFormat, JsonObjectType, SerializedModel, Serializer,
+};
+use serde::Serialize;
+use serde::de::DeserializeOwned;
+
+/// A JSON-backed cloud object payload.
+pub trait JsonModel: Clone + Debug + Send + Sync + Serialize + DeserializeOwned + 'static {
+    /// Returns the JSON object type used by the generic string object API.
+    fn json_object_type() -> JsonObjectType;
+
+    /// Returns the generic string format for this JSON model.
+    fn model_format() -> GenericStringObjectFormat {
+        GenericStringObjectFormat::Json(Self::json_object_type())
+    }
+}
+
+#[derive(Clone, Debug, PartialEq, Default)]
+pub struct JsonSerializer;
+
+impl<M: JsonModel> Serializer<M> for JsonSerializer {
+    fn model_format() -> GenericStringObjectFormat {
+        M::model_format()
+    }
+
+    fn serialize(model: &M) -> SerializedModel {
+        SerializedModel::new(serde_json::to_string(model).expect("model should serialize"))
+    }
+
+    fn deserialize_owned(serialized: &str) -> Result<M>
+    where
+        Self: Sized,
+    {
+        Ok(serde_json::from_str(serialized)?)
+    }
+}