From dcfaf6d6d3b03fe715c6ff98b9e26e17d3c06550 Mon Sep 17 00:00:00 2001
From: Cyrus Najmabadi <cyrusn@microsoft.com>
Date: Thu, 27 Nov 2014 14:28:44 -0800
Subject: [PATCH] Support parsing const enums.

---
 src/services/syntax/parser.ts | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/services/syntax/parser.ts b/src/services/syntax/parser.ts
index f276ffd9561..f55577dded1 100644
--- a/src/services/syntax/parser.ts
+++ b/src/services/syntax/parser.ts
@@ -1098,6 +1098,7 @@ module TypeScript.Parser {
                 case SyntaxKind.StaticKeyword:
                 case SyntaxKind.DeclareKeyword:
                 case SyntaxKind.AsyncKeyword:
+                case SyntaxKind.ConstKeyword:
                     return true;
             }
 
@@ -1117,6 +1118,11 @@ module TypeScript.Parser {
                     }
                 }
 
+                if (token.kind === SyntaxKind.ConstKeyword) {
+                    // In order for 'const' to be a modifier, the next token must be 'enum'.
+                    return nextToken.kind === SyntaxKind.EnumKeyword;
+                }
+
                 var nextTokenKind = nextToken.kind;
                 switch (nextTokenKind) {
                     // public foo'