optimize end of intertyper

1 files changed, 5 insertions, 2 deletions

diff --git a/src/intertyper.js b/src/intertyper.js
index 13377411..41967eb9 100644
--- a/src/intertyper.js
+++ b/src/intertyper.js
@@ -988,10 +988,13 @@ function intertyper(lines, sidePass, baseLineNums) {
 
   // Input
 
-  return lineSplitter().map(tokenizer).filter(function(item) { return item }).map(triager).filter(function(result) {
+  var ret = lineSplitter().map(tokenizer).filter(function(item) { return item }).map(triager).filter(function(result) {
     if (!result) return false;
     if (result.tokens) result.tokens = null; // We do not need tokens, past the intertyper. Clean them up as soon as possible here.
     return true;
-  }).concat(unparsedBundles).concat(extraResults);
+  });
+  if (unparsedBundles.length > 0) ret = ret.concat(unparsedBundles);
+  if (extraResults.length > 0) ret = ret.concat(extraResults);
+  return ret;
 }