use cargo check via API

requires rust-lang/cargo#3427

closes #82

cc #90

Cargo.toml

@@ -4,6 +4,7 @@ version = "0.1.0"
 authors = ["Jonathan Turner <jturner@mozilla.com>"]
 
 [dependencies]
+cargo = { path = "../cargo" }
 log = "0.3"
 racer = { git = "https://github.com/phildawes/racer" }
 rls-analysis = { git = "https://github.com/nrc/rls-analysis" }

src/actions.rs

@@ -63,7 +63,7 @@ impl ActionHandler {
     pub fn build(&self, project_path: &Path, priority: BuildPriority, out: &Output) {
         out.notify("textDocument/diagnosticsBegin");
 
-        println!("build {:?}", project_path);
+        debug!("build {:?}", project_path);
         let result = self.build_queue.request_build(project_path, priority);
         match result {
             BuildResult::Success(ref x) | BuildResult::Failure(ref x) => {

src/main.rs

@@ -11,6 +11,7 @@
 #![feature(rustc_private)]
 #![feature(proc_macro)]
 
+extern crate cargo;
 #[macro_use]
 extern crate derive_new;
 #[macro_use]

src/server.rs

@@ -312,7 +312,7 @@ impl LsService {
                         Method::ReformatRange(params) => {
                             // FIXME reformats the whole file, not just a range.
                             // FIXME take account of options.
-                            trace!("command(reformat): {:?}", params);
+                            trace!("command(reformat range): {:?}", params);
                             this.handler.reformat(id, params.text_document, &*this.output);
                         }
                     }

src/test/mod.rs

@@ -438,11 +438,6 @@ impl ls_server::MessageReader for MockRawMsgReader {
         let message = &self.messages[self.cur.load(Ordering::SeqCst)];
         self.cur.fetch_add(1, Ordering::SeqCst);
 
-        //let params = message.params.iter().map(|&(k, ref v)| format!("\"{}\":{}", k, v)).collect::<Vec<String>>().join(",");
-        // TODO don't hardcode the id, we should use fresh ids and use them to look up responses
-        //let result = format!("{{\"method\":\"{}\",\"id\":42,\"params\":{{{}}}}}", message.method, params);
-        // println!("read_message: `{}`", result);
-
         Some(message.clone())
     }
 }

test_data/hello/src/main.rs

@@ -8,7 +8,7 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
-fn main() {
+pub fn main() {
     let world = "world";
     println!("Hello, {}!", world);
 }