Add proc-macro cli command for rust-analyzer

2 files changed, 10 insertions, 5 deletions

diff --git a/crates/ra_proc_macro/src/lib.rs b/crates/ra_proc_macro/src/lib.rs
index 63da9f1b4..14a675db2 100644
--- a/crates/ra_proc_macro/src/lib.rs
+++ b/crates/ra_proc_macro/src/lib.rs
@@ -56,8 +56,11 @@ pub struct ProcMacroClient {
 }
 
 impl ProcMacroClient {
-    pub fn extern_process(process_path: &Path) -> Result<ProcMacroClient, std::io::Error> {
-        let (thread, process) = ProcMacroProcessSrv::run(process_path)?;
+    pub fn extern_process<T: AsRef<str>>(
+        process_path: &Path,
+        args: &[T],
+    ) -> Result<ProcMacroClient, std::io::Error> {
+        let (thread, process) = ProcMacroProcessSrv::run(process_path, args)?;
         Ok(ProcMacroClient {
             kind: ProcMacroClientKind::Process { process: Arc::new(process), thread },
         })
diff --git a/crates/ra_proc_macro/src/process.rs b/crates/ra_proc_macro/src/process.rs
index e8c85be38..b5e8493ac 100644
--- a/crates/ra_proc_macro/src/process.rs
+++ b/crates/ra_proc_macro/src/process.rs
@@ -44,8 +44,9 @@ impl Drop for Process {
 }
 
 impl Process {
-    fn run(process_path: &Path) -> Result<Process, io::Error> {
+    fn run<T: AsRef<str>>(process_path: &Path, args: &[T]) -> Result<Process, io::Error> {
         let child = Command::new(process_path.clone())
+            .args(args.iter().map(|it| it.as_ref()))
             .stdin(Stdio::piped())
             .stdout(Stdio::piped())
             .stderr(Stdio::null())
@@ -74,10 +75,11 @@ impl Process {
 }
 
 impl ProcMacroProcessSrv {
-    pub fn run(
+    pub fn run<T: AsRef<str>>(
         process_path: &Path,
+        args: &[T],
     ) -> Result<(ProcMacroProcessThread, ProcMacroProcessSrv), io::Error> {
-        let process = Process::run(process_path)?;
+        let process = Process::run(process_path, args)?;
 
         let (task_tx, task_rx) = bounded(0);
         let handle = jod_thread::spawn(move || {