repl: don’t write to input stream in editor mode

Instead of writing to the REPL’s input stream for the alignment spaces in `.editor` mode, let `readline` handle the spaces properly (echoing them using `_ttyWrite` and adding them to the current line buffer). Fixes: #9189 PR-URL: #9207 Reviewed-By: Prince John Wesley <[email protected]> Reviewed-By: James M Snell <[email protected]>
nodejs · Nov 3, 2016 · 0b9d80a · 0b9d80a
1 parent 1c59cef
commit 0b9d80a
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diff --git a/lib/repl.js b/lib/repl.js
@@ -476,7 +476,7 @@ function REPLServer(prompt,
       const matches = self._sawKeyPress ? cmd.match(/^\s+/) : null;
       if (matches) {
         const prefix = matches[0];
-        self.inputStream.write(prefix);
+        self.write(prefix);
         self.line = prefix;
         self.cursor = prefix.length;
       }

diff --git a/test/parallel/test-repl-.editor.js b/test/parallel/test-repl-.editor.js
@@ -75,12 +75,15 @@ tests.forEach(run);
 // Auto code alignment for .editor mode
 function testCodeAligment({input, cursor = 0, line = ''}) {
   const stream = new common.ArrayStream();
+  const outputStream = new common.ArrayStream();
+
+  stream.write = () => { throw new Error('Writing not allowed!'); };
 
   const replServer = repl.start({
     prompt: '> ',
     terminal: true,
     input: stream,
-    output: stream,
+    output: outputStream,
     useColors: false
   });