From 326036dbe5b7493338856b8e3f62bb4ac7df7fd2 Mon Sep 17 00:00:00 2001
From: Arthur Ozga <aozgaa@umich.edu>
Date: Thu, 18 Jun 2015 15:04:05 -0700
Subject: [PATCH] write to declaration file

---
 src/compiler/declarationEmitter.ts | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/compiler/declarationEmitter.ts b/src/compiler/declarationEmitter.ts
index 8e9f3e5c352..649e9b69a76 100644
--- a/src/compiler/declarationEmitter.ts
+++ b/src/compiler/declarationEmitter.ts
@@ -589,6 +589,9 @@ namespace ts {
             if (node.flags & NodeFlags.Static) {
                 write("static ");
             }
+            if (node.flags & NodeFlags.Abstract) {
+                write("abstract ");
+            }
         }
 
         function writeImportEqualsDeclaration(node: ImportEqualsDeclaration) {