From 84fb9b44c3b06e1a542608570bb6d7212c8505b7 Mon Sep 17 00:00:00 2001
From: Edwin Cheng <edwin0cheng@gmail.com>
Date: Wed, 1 Apr 2020 13:11:26 +0800
Subject: Introduce ra_proc_macro_srv

---
 crates/ra_proc_macro_srv/src/main.rs | 53 ++++++++++++++++++++++++++++++++++++
 1 file changed, 53 insertions(+)
 create mode 100644 crates/ra_proc_macro_srv/src/main.rs

(limited to 'crates/ra_proc_macro_srv/src/main.rs')

diff --git a/crates/ra_proc_macro_srv/src/main.rs b/crates/ra_proc_macro_srv/src/main.rs
new file mode 100644
index 000000000..54ce0224d
--- /dev/null
+++ b/crates/ra_proc_macro_srv/src/main.rs
@@ -0,0 +1,53 @@
+use ra_proc_macro::msg::{self, Message};
+use ra_proc_macro_srv::{expand_task, list_macros};
+
+use std::io;
+
+fn read_request() -> Result<Option<msg::Request>, io::Error> {
+    let stdin = io::stdin();
+    let mut stdin = stdin.lock();
+    msg::Request::read(&mut stdin)
+}
+
+fn write_response(res: Result<msg::Response, String>) -> Result<(), io::Error> {
+    let msg: msg::Response = match res {
+        Ok(res) => res,
+        Err(err) => msg::Response::Error(msg::ResponseError {
+            code: msg::ErrorCode::ExpansionError,
+            message: err,
+        }),
+    };
+
+    let stdout = io::stdout();
+    let mut stdout = stdout.lock();
+    msg.write(&mut stdout)
+}
+fn main() {
+    loop {
+        let req = match read_request() {
+            Err(err) => {
+                eprintln!("Read message error on ra_proc_macro_srv: {}", err.to_string());
+                continue;
+            }
+            Ok(None) => continue,
+            Ok(Some(req)) => req,
+        };
+
+        match req {
+            msg::Request::ListMacro(task) => {
+                if let Err(err) =
+                    write_response(list_macros(&task).map(|it| msg::Response::ListMacro(it)))
+                {
+                    eprintln!("Write message error on list macro: {}", err);
+                }
+            }
+            msg::Request::ExpansionMacro(task) => {
+                if let Err(err) =
+                    write_response(expand_task(&task).map(|it| msg::Response::ExpansionMacro(it)))
+                {
+                    eprintln!("Write message error on expansion macro: {}", err);
+                }
+            }
+        }
+    }
+}
-- 
cgit v1.2.3


From 9a2114b0dd6d3292216fa4d05e3c4cd219633f4b Mon Sep 17 00:00:00 2001
From: Edwin Cheng <edwin0cheng@gmail.com>
Date: Fri, 3 Apr 2020 19:16:54 +0800
Subject: Add doc comment on main.rs

---
 crates/ra_proc_macro_srv/src/main.rs | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'crates/ra_proc_macro_srv/src/main.rs')

diff --git a/crates/ra_proc_macro_srv/src/main.rs b/crates/ra_proc_macro_srv/src/main.rs
index 54ce0224d..70743c1f4 100644
--- a/crates/ra_proc_macro_srv/src/main.rs
+++ b/crates/ra_proc_macro_srv/src/main.rs
@@ -1,3 +1,5 @@
+//! Driver for proc macro server
+
 use ra_proc_macro::msg::{self, Message};
 use ra_proc_macro_srv::{expand_task, list_macros};
 
-- 
cgit v1.2.3