From eb1160731e7d0c8680c1c90ce1260e4ffa5cc2a2 Mon Sep 17 00:00:00 2001
From: Vladimir Matveev <vladima@microsoft.com>
Date: Tue, 17 Mar 2015 14:02:19 -0700
Subject: [PATCH] use type annotation when emitting declarations

---
 src/compiler/emitter.ts | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/src/compiler/emitter.ts b/src/compiler/emitter.ts
index 387a57fa7f4..e8f7ef77e52 100644
--- a/src/compiler/emitter.ts
+++ b/src/compiler/emitter.ts
@@ -756,8 +756,13 @@ module ts {
             }
             else {
                 write(": ");
-                writer.getSymbolAccessibilityDiagnostic = getDefaultExportAccessibilityDiagnostic;
-                resolver.writeTypeOfExpression(node.expression, enclosingDeclaration, TypeFormatFlags.UseTypeOfFunction, writer);
+                if (node.type) {
+                    emitType(node.type);
+                }
+                else {
+                    writer.getSymbolAccessibilityDiagnostic = getDefaultExportAccessibilityDiagnostic;
+                    resolver.writeTypeOfExpression(node.expression, enclosingDeclaration, TypeFormatFlags.UseTypeOfFunction, writer);
+                }
             }
             write(";");
             writeLine();