v0.3.1-pre.005

crates/ksp-store-api/tests/external_backend.rs

@@ -0,0 +1,128 @@
+// file: crates/ksp-store-api/tests/external_backend.rs
+// version: 1
+
+//! External-implementation canary for object-safe Store API capabilities.
+
+struct ExternalMemoryBackend;
+
+impl ksp_store_api::RawTransactionRead for ExternalMemoryBackend {
+    fn get_raw_transaction<'a>(
+        &'a self,
+        reference: &'a ksp_store_api::RawTransactionReference,
+    ) -> ksp_store_api::StoreApiFuture<'a, ksp_store_api::Result<std::option::Option<ksp_store_api::RawTransaction>>> {
+        let _ = reference;
+        return std::boxed::Box::pin(async {
+            return std::result::Result::Ok(std::option::Option::None);
+        });
+    }
+}
+
+impl ksp_store_api::RawTransactionWrite for ExternalMemoryBackend {
+    fn persist_raw_transaction_acquisition<'a>(
+        &'a self,
+        transaction: ksp_store_api::RawTransaction,
+        observation: ksp_store_api::RawTransactionObservation,
+    ) -> ksp_store_api::StoreApiFuture<'a, ksp_store_api::Result<()>> {
+        let _ = transaction;
+        let _ = observation;
+        return std::boxed::Box::pin(async {
+            return std::result::Result::Ok(());
+        });
+    }
+}
+
+impl ksp_store_api::RawTransactionObservationRead for ExternalMemoryBackend {
+    fn get_raw_transaction_observation<'a>(
+        &'a self,
+        observation_key: &'a ksp_store_api::RawObservationKey,
+    ) -> ksp_store_api::StoreApiFuture<'a, ksp_store_api::Result<std::option::Option<ksp_store_api::RawTransactionObservation>>> {
+        let _ = observation_key;
+        return std::boxed::Box::pin(async {
+            return std::result::Result::Ok(std::option::Option::None);
+        });
+    }
+}
+
+impl ksp_store_api::RawTransactionObservationWrite for ExternalMemoryBackend {
+    fn record_raw_transaction_observation<'a>(
+        &'a self,
+        observation: ksp_store_api::RawTransactionObservation,
+    ) -> ksp_store_api::StoreApiFuture<'a, ksp_store_api::Result<()>> {
+        let _ = observation;
+        return std::boxed::Box::pin(async {
+            return std::result::Result::Ok(());
+        });
+    }
+}
+
+impl ksp_store_api::RawAccountStateRead for ExternalMemoryBackend {
+    fn get_raw_account_state<'a>(
+        &'a self,
+        reference: &'a ksp_store_api::RawAccountStateReference,
+    ) -> ksp_store_api::StoreApiFuture<'a, ksp_store_api::Result<std::option::Option<ksp_store_api::RawAccountState>>> {
+        let _ = reference;
+        return std::boxed::Box::pin(async {
+            return std::result::Result::Ok(std::option::Option::None);
+        });
+    }
+}
+
+impl ksp_store_api::RawAccountStateWrite for ExternalMemoryBackend {
+    fn persist_raw_account_acquisition<'a>(
+        &'a self,
+        state: ksp_store_api::RawAccountState,
+        observation: ksp_store_api::RawAccountObservation,
+    ) -> ksp_store_api::StoreApiFuture<'a, ksp_store_api::Result<()>> {
+        let _ = state;
+        let _ = observation;
+        return std::boxed::Box::pin(async {
+            return std::result::Result::Ok(());
+        });
+    }
+}
+
+impl ksp_store_api::RawAccountObservationRead for ExternalMemoryBackend {
+    fn get_raw_account_observation<'a>(
+        &'a self,
+        observation_key: &'a ksp_store_api::RawObservationKey,
+    ) -> ksp_store_api::StoreApiFuture<'a, ksp_store_api::Result<std::option::Option<ksp_store_api::RawAccountObservation>>> {
+        let _ = observation_key;
+        return std::boxed::Box::pin(async {
+            return std::result::Result::Ok(std::option::Option::None);
+        });
+    }
+}
+
+impl ksp_store_api::RawAccountObservationWrite for ExternalMemoryBackend {
+    fn record_raw_account_observation<'a>(
+        &'a self,
+        observation: ksp_store_api::RawAccountObservation,
+    ) -> ksp_store_api::StoreApiFuture<'a, ksp_store_api::Result<()>> {
+        let _ = observation;
+        return std::boxed::Box::pin(async {
+            return std::result::Result::Ok(());
+        });
+    }
+}
+
+#[test]
+fn pre_005_external_backend_implements_each_capability_without_store_runtime_crate() {
+    let backend = ExternalMemoryBackend;
+    let transaction_read: &dyn ksp_store_api::RawTransactionRead = &backend;
+    let transaction_write: &dyn ksp_store_api::RawTransactionWrite = &backend;
+    let transaction_observation_read: &dyn ksp_store_api::RawTransactionObservationRead = &backend;
+    let transaction_observation_write: &dyn ksp_store_api::RawTransactionObservationWrite = &backend;
+    let account_read: &dyn ksp_store_api::RawAccountStateRead = &backend;
+    let account_write: &dyn ksp_store_api::RawAccountStateWrite = &backend;
+    let account_observation_read: &dyn ksp_store_api::RawAccountObservationRead = &backend;
+    let account_observation_write: &dyn ksp_store_api::RawAccountObservationWrite = &backend;
+    let _ = transaction_read;
+    let _ = transaction_write;
+    let _ = transaction_observation_read;
+    let _ = transaction_observation_write;
+    let _ = account_read;
+    let _ = account_write;
+    let _ = account_observation_read;
+    let _ = account_observation_write;
+    return;
+}