Execute Lua code

src/command_handler.rs

@@ -10,16 +10,18 @@ fn reentrant_command_handler(
     term_frame: &TermFrame,
     command_in: &str,
 ) {
-    web_sys::console::log_1(&"Inside command handler".into());
+    echo_to_term_frame(globals, term_frame, "\r").unwrap_or(());
-    echo_to_term_frame(globals, term_frame, "Hello World!\n").unwrap_or(());
     for command in parse_commands(command_in).commands {
         match command.split_out_command() {
             None => (),
             Some((cmd, rest)) => {
                 if cmd == "##" {
                     match lua_state.execute(&join(rest.arguments.iter(), " ")) {
-                        Ok(msg) => echo_to_term_frame(globals, term_frame, &msg).unwrap_or(()),
+                        Ok(()) => (),
-                        Err(msg) => echo_to_term_frame(globals, term_frame, &msg).unwrap_or(()),
+                        Err(msg) => {
+                            echo_to_term_frame(globals, term_frame, &format!("{}\r\n", msg))
+                                .unwrap_or(())
+                        }
                     }
                 }
             }
@@ -32,7 +34,7 @@ pub fn command_handler(globals: &GlobalCell, term_frame: &TermFrame, command_in:
         Err(_) => echo_to_term_frame(
             globals,
             term_frame,
-            "Attempt to re-enter command handler during processing.\n",
+            "Attempt to re-enter command handler during processing.\r\n",
         )
         .unwrap_or(()), // Ignore error handling error.
         Ok(mut lua_state_m) => {

src/lua_state.rs

@@ -18,7 +18,7 @@ impl LuaState {
         Ok(LuaState { interp, exec })
     }
 
-    pub fn execute(&mut self, command: &str) -> Result<String, String> {
+    pub fn execute(&mut self, command: &str) -> Result<(), String> {
         self.interp
             .try_enter(|ctx| {
                 let closure = Closure::load(ctx, None, format!("return ({})", command).as_bytes())
@@ -27,7 +27,9 @@ impl LuaState {
                 Ok(())
             })
             .map_err(|err| format!("{}", err))?;
-        Ok("Blah".to_owned())
+        self.interp
+            .execute::<()>(&self.exec)
+            .map_err(|err| format!("{}", err))
     }
 }
 
@@ -57,8 +59,8 @@ pub fn install_lua_globals(global: &GlobalCell) -> Result<(), String> {
 
 fn echo_frame(ctx: Context, global: GlobalCell) -> Callback {
     Callback::from_fn(&ctx, move |ctx, _ex, mut stack| {
-        let frame_no: u64 = stack.consume(ctx)?;
+        let frame_no: u64 = stack.from_front(ctx)?;
-        let message: piccolo::String = stack.consume(ctx)?;
+        let message: piccolo::String = stack.from_front(ctx)?;
         let message_str = str::from_utf8(message.as_bytes())
             .map_err(|_| "Expected message to echo to be UTF-8.".into_value(ctx))?;
         echo_to_term_frame(&global, &TermFrame(frame_no), message_str)

src/term_view.rs

@@ -207,13 +207,7 @@ pub fn echo_to_term_frame(
         .frame_registry
         .borrow()
         .get(frame_id)
-        .ok_or_else(|| {
+        .ok_or_else(|| "Attempt to echo to frame that doesn't exist.")?
-            web_sys::console::log_2(
-                &"Attempt to echo to frame that doesn't exist.".into(),
-                &frame_id.0.into(),
-            );
-            "Attempt to echo to frame that doesn't exist."
-        })?
         .term
         .write(message);
     Ok(())