From 4ae8445ff7a73d606c00dc6a701792b53ffbc046 Mon Sep 17 00:00:00 2001
From: Anders Hejlsberg <andersh@microsoft.com>
Date: Sat, 3 Feb 2018 11:32:24 -0800
Subject: [PATCH] Properly classify output text in emitter

---
 src/compiler/emitter.ts | 15 +++++++++++----
 1 file changed, 11 insertions(+), 4 deletions(-)

diff --git a/src/compiler/emitter.ts b/src/compiler/emitter.ts
index a2d574370d6..58aa2c7a563 100644
--- a/src/compiler/emitter.ts
+++ b/src/compiler/emitter.ts
@@ -1196,16 +1196,23 @@ namespace ts {
 
         function emitConditionalType(node: ConditionalTypeNode) {
             emit(node.checkType);
-            write(" extends ");
+            writeSpace();
+            writeKeyword("extends");
+            writeSpace();
             emit(node.extendsType);
-            write(" ? ");
+            writeSpace();
+            writePunctuation("?");
+            writeSpace();
             emit(node.trueType);
-            write(" : ");
+            writeSpace();
+            writePunctuation(":");
+            writeSpace();
             emit(node.falseType);
         }
 
         function emitInferType(node: InferTypeNode) {
-            write("infer ");
+            writeKeyword("infer");
+            writeSpace();
             emit(node.typeParameter);
         }