fix write buffer issue.

Author: StreetStrider

lib/Writer.js

@@ -4,12 +4,11 @@ export default function Writer (stream)
 {
 	function writer (data)
 	{
-		data = tr(data, writer.transforms)
-
-		tr_ed = true
-
 		try
 		{
+			data  = tr(data, writer.transforms)
+			tr_ed = true
+
 			stream.write(data + '\n')
 		}
 		finally
@@ -36,10 +35,8 @@ export default function Writer (stream)
 		{
 			if (! tr_ed)
 			{
-				/* encoding is ignored; TODO? */
-				var chunk = String(args[0])
-
-				args[0] = tr(chunk, writer.transforms)
+				/* TODO: consider encoding */
+				args[0] = tr(args[0], writer.transforms)
 			}
 
 			$write.apply(stream, args)
@@ -54,14 +51,14 @@ export default function Writer (stream)
 
 function tr (data, transforms)
 {
-	data = String(data)
+	if (typeof data !== 'string')
+	{
+		return data
+	}
 
-	if (transforms.length)
+	for (let n = transforms.length; n; n--)
 	{
-		for (let n = transforms.length; n; n--)
-		{
-			data = transforms[n - 1](data)
-		}
+		data = transforms[n - 1](data)
 	}
 
 	return data

test/stream.test.js

@@ -0,0 +1,12 @@
+
+import Console from 'console-ultimate/Console'
+
+describe('stream', () =>
+{
+	Console()
+
+	it('print buffer', () =>
+	{
+		process.stdout.write(Buffer.from('\n'))
+	})
+})