From 60b382d1b33d19a5506d81c13f9b44efae89aa93 Mon Sep 17 00:00:00 2001
From: Yui T <yuisu@microsoft.com>
Date: Wed, 7 Sep 2016 13:54:52 -0700
Subject: [PATCH] Correct emit comment for decorated class declaration

---
 src/compiler/transformers/ts.ts | 24 +++++++++++++-----------
 1 file changed, 13 insertions(+), 11 deletions(-)

diff --git a/src/compiler/transformers/ts.ts b/src/compiler/transformers/ts.ts
index efb247ba663..00441c279c7 100644
--- a/src/compiler/transformers/ts.ts
+++ b/src/compiler/transformers/ts.ts
@@ -694,19 +694,21 @@ namespace ts {
 
             //  let ${name} = ${classExpression} where name is either declaredName if the class doesn't contain self-reference
             //                                         or decoratedClassAlias if the class contain self-reference.
+            const transformedClassExpression = createVariableStatement(
+                /*modifiers*/ undefined,
+                createLetDeclarationList([
+                    createVariableDeclaration(
+                        classAlias || declaredName,
+                        /*type*/ undefined,
+                        classExpression
+                    )
+                ]),
+                /*location*/ location
+            );
+            setCommentRange(transformedClassExpression, node);
             statements.push(
                 setOriginalNode(
-                    createVariableStatement(
-                        /*modifiers*/ undefined,
-                        createLetDeclarationList([
-                            createVariableDeclaration(
-                                classAlias || declaredName,
-                                /*type*/ undefined,
-                                classExpression
-                            )
-                        ]),
-                        /*location*/ location
-                    ),
+                    /*node*/ transformedClassExpression,
                     /*original*/ node
                 )
             );