From 46cc620298d99aeedbdb6b9b8496e27d031eca8c Mon Sep 17 00:00:00 2001
From: zhengbli <zhengbli@microsoft.com>
Date: Tue, 10 Nov 2015 15:22:06 -0800
Subject: [PATCH] Add support for constructors in added interface json file

---
 TS.fsx                 | 9 ++++++++-
 inputfiles/sample.json | 3 +++
 2 files changed, 11 insertions(+), 1 deletion(-)

diff --git a/TS.fsx b/TS.fsx
index c98974df0..535ad7198 100644
--- a/TS.fsx
+++ b/TS.fsx
@@ -545,13 +545,20 @@ let EmitAddedInterface (ai: JsonItems.ItemsType.Root) =
     match ai.Extends with 
     | Some e -> Pt.printl "interface %s extends %s {" ai.Name.Value ai.Extends.Value
     | None -> Pt.printl "interface %s {" ai.Name.Value
-    
+
     ai.Properties |> Array.iter (fun p -> Pt.printWithAddedIndent "%s: %s;" p.Name p.Type)
     ai.Methods |> Array.collect (fun m -> m.Signatures) |> Array.iter (Pt.printWithAddedIndent "%s;")
     ai.Indexer |> Array.collect (fun i -> i.Signatures) |> Array.iter (Pt.printWithAddedIndent "%s;")
     Pt.printl "}"
     Pt.printl ""
 
+    if ai.ConstructorSignatures.Length > 0 then
+        Pt.printl "declare var %s: {" ai.Name.Value
+        Pt.printWithAddedIndent "prototype: %s;" ai.Name.Value
+        ai.ConstructorSignatures |> Array.iter (Pt.printWithAddedIndent "%s;")
+        Pt.printl "}"
+        Pt.printl "" 
+
 let EmitTheWholeThing flavor (target:TextWriter) =
     Pt.reset()
     Pt.printl "/////////////////////////////"
diff --git a/inputfiles/sample.json b/inputfiles/sample.json
index 1286731c8..ed0e2ef43 100644
--- a/inputfiles/sample.json
+++ b/inputfiles/sample.json
@@ -53,6 +53,9 @@
     {
         "kind": "interface",
         "name": "BlobPropertyBag",
+        "constructorSignatures": [
+            "new(): NodeList"
+        ],
         "properties": [
             {
                 "name": "type?",