From 672ed6ed0c69c71a4589b6a3b7b74b5caa7ba1ea Mon Sep 17 00:00:00 2001
From: Martin Carlberg <martin@carlberg.org>
Date: Mon, 12 Aug 2013 22:41:36 +0200
Subject: [PATCH] Fixed: Handle protocol declaration with no method
 declarations

---
 Objective-J/ObjJAcornCompiler.js | 23 +++++++++++++----------
 1 file changed, 13 insertions(+), 10 deletions(-)

diff --git a/Objective-J/ObjJAcornCompiler.js b/Objective-J/ObjJAcornCompiler.js
index 441ee1c78..099bc04d9 100644
--- a/Objective-J/ObjJAcornCompiler.js
+++ b/Objective-J/ObjJAcornCompiler.js
@@ -1857,18 +1857,21 @@ ProtocolDeclarationStatement: function(node, st, c) {
     compiler.protocolDefs[protocolName] = protocolDef;
     protocolScope.protocolDef = protocolDef;
 
-    var someRequired = node.required,
-        requiredLength = someRequired.length;
+    var someRequired = node.required;
 
-    if (requiredLength > 0)
-    {
-        // We only add the required methods
-        for (var i = 0; i < requiredLength; ++i) {
-            var required = someRequired[i];
-            if (!generate) compiler.lastPos = required.start;
-            c(required, protocolScope, "Statement");
+    if (someRequired) {
+        var requiredLength = someRequired.length;
+
+        if (requiredLength > 0)
+        {
+            // We only add the required methods
+            for (var i = 0; i < requiredLength; ++i) {
+                var required = someRequired[i];
+                if (!generate) compiler.lastPos = required.start;
+                c(required, protocolScope, "Statement");
+            }
+            if (!generate) buffer.concat(compiler.source.substring(compiler.lastPos, required.end));
         }
-        if (!generate) buffer.concat(compiler.source.substring(compiler.lastPos, required.end));
     }
 
     buffer.concat("\nobjc_registerProtocol(the_protocol);\n");