From 6dc430d8926868f23f8ac11cf3fe4d658a02ff04 Mon Sep 17 00:00:00 2001
From: Arthur Ozga <aozgaa@umich.edu>
Date: Thu, 18 Jun 2015 14:18:10 -0700
Subject: [PATCH] constructor cannot have modifier 'abstract'

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

diff --git a/src/compiler/checker.ts b/src/compiler/checker.ts
index 2f7a66ad78..e9977c9cd4 100644
--- a/src/compiler/checker.ts
+++ b/src/compiler/checker.ts
@@ -12853,6 +12853,9 @@ namespace ts {
                 if (flags & NodeFlags.Static) {
                     return grammarErrorOnNode(lastStatic, Diagnostics._0_modifier_cannot_appear_on_a_constructor_declaration, "static");
                 }
+                if (flags & NodeFlags.Abstract) {
+                    return grammarErrorOnNode(lastStatic, Diagnostics._0_modifier_cannot_appear_on_a_constructor_declaration, "abstract");
+                }
                 else if (flags & NodeFlags.Protected) {
                     return grammarErrorOnNode(lastProtected, Diagnostics._0_modifier_cannot_appear_on_a_constructor_declaration, "protected");
                 }