From 90f81bb871cc40c6fff9ea5755fa72cc6344af32 Mon Sep 17 00:00:00 2001
From: Jason Volk <jason@zemos.net>
Date: Thu, 10 Nov 2016 12:20:47 -0800
Subject: [PATCH] ircd::js: Return undefined for args::operator[]; bounds check
 on args::at().

---
 include/ircd/js/args.h | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/include/ircd/js/args.h b/include/ircd/js/args.h
index bd0335e30..0bd6afe0e 100644
--- a/include/ircd/js/args.h
+++ b/include/ircd/js/args.h
@@ -32,6 +32,7 @@ struct args
 	size_t size() const                          { return length();                                }
 	bool has(const size_t &at) const             { return size() > at;                             }
 
+	value at(const size_t &at) const;
 	value operator[](const size_t &at) const;
 
 	args(const unsigned &argc, JS::Value *const &argv);
@@ -47,6 +48,13 @@ args::args(const unsigned &argc,
 inline value
 args::operator[](const size_t &at)
 const
+{
+	return length() > at? JS::CallArgs::operator[](at) : value{};
+}
+
+inline value
+args::at(const size_t &at)
+const
 {
 	if(unlikely(length() <= at))
 		throw range_error("Missing required argument #%zu", at);