introduce NodeWasmService trait

Cargo.lock

@@ -517,8 +517,8 @@ dependencies = [
 ]
 
 [[package]]
-name = "ipfs_node"
-version = "0.1.0"
+name = "ipfs_node_service"
+version = "0.2.0"
 dependencies = [
  "cmd_lib",
  "fce",

examples/ipfs_node/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
-name = "ipfs_node"
-version = "0.1.0"
+name = "ipfs_node_service"
+version = "0.2.0"
 authors = ["Fluence Labs"]
 edition = "2018"
 

examples/ipfs_node/src/lib.rs

@@ -13,10 +13,14 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-#![feature(pattern)]
 
 mod node;
+mod node_wasm_service;
 
 pub use fce::IValue;
 
-pub use node::*;
+pub use node::IpfsNode;
+pub use node::NodeError;
+pub use node::NodePublicInterface;
+pub use node::NodeModulePublicInterface;
+pub use node_wasm_service::NodeWasmService;

examples/ipfs_node/src/main.rs

@@ -15,9 +15,15 @@
  */
 
 mod node;
+mod node_wasm_service;
+
+pub use node::IpfsNode;
+pub use node::NodeError;
+pub use node::NodePublicInterface;
+pub use node::NodeModulePublicInterface;
+pub use node_wasm_service::NodeWasmService;
 
 use fce::IValue;
-use node::IpfsNode;
 
 use std::path::PathBuf;
 

examples/ipfs_node/src/node/ipfs_node.rs

@@ -46,7 +46,7 @@ impl IpfsNode {
         for entry in fs::read_dir(core_modules_dir.into())? {
             let path = entry?.path();
             if path.is_dir() {
-                // just pass directories
+                // just skip directories
                 continue;
             }
 
@@ -74,8 +74,10 @@ impl IpfsNode {
             rpc_module_config,
         })
     }
+}
 
-    pub fn rpc_call(
+impl crate::node_wasm_service::NodeWasmService for IpfsNode {
+    fn rpc_call(
         &mut self,
         wasm_rpc: &[u8],
         func_name: &str,
@@ -92,7 +94,7 @@ impl IpfsNode {
         Ok(call_result)
     }
 
-    pub fn get_interface(&self) -> NodePublicInterface {
+    fn get_interface(&self) -> NodePublicInterface {
         let mut modules = Vec::with_capacity(self.module_names.len());
 
         for module_name in self.module_names.iter() {

examples/ipfs_node/src/node/mod.rs

@@ -17,11 +17,11 @@
 mod config;
 mod errors;
 mod imports;
-mod node;
+mod ipfs_node;
 mod node_public_interface;
 mod utils;
 
-pub use node::IpfsNode;
+pub use ipfs_node::IpfsNode;
 pub use errors::NodeError;
 pub use node_public_interface::NodePublicInterface;
 pub use node_public_interface::NodeModulePublicInterface;

examples/ipfs_node/src/node_wasm_service.rs

@@ -0,0 +1,31 @@
+/*
+ * Copyright 2020 Fluence Labs Limited
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+use crate::NodeError;
+use crate::NodePublicInterface;
+
+use fce::IValue;
+
+pub trait NodeWasmService {
+    fn rpc_call(
+        &mut self,
+        wasm_rpc: &[u8],
+        func_name: &str,
+        args: &[IValue],
+    ) -> Result<Vec<IValue>, NodeError>;
+
+    fn get_interface(&self) -> NodePublicInterface;
+}