From a3b5a07cf7c64f1a038839d3ef2f7b1d9fbf6c42 Mon Sep 17 00:00:00 2001
From: Josh Blum
Date: Sat, 27 Jul 2013 19:20:35 -0700
Subject: gras: added arg check with nice warning to callable and factory

---
 lib/factory.cpp | 7 +++++++
 1 file changed, 7 insertions(+)

(limited to 'lib/factory.cpp')

diff --git a/lib/factory.cpp b/lib/factory.cpp
index 5c405f3..35b1b24 100644
--- a/lib/factory.cpp
+++ b/lib/factory.cpp
@@ -1,6 +1,7 @@
 // Copyright (C) by Josh Blum. See LICENSE.txt for licensing information.
 
 #include <gras/factory.hpp>
+#include <boost/format.hpp>
 #include <boost/shared_ptr.hpp>
 #include <boost/thread/mutex.hpp>
 #include <stdexcept>
@@ -18,6 +19,12 @@ FactoryRegistryEntry::~FactoryRegistryEntry(void)
     //NOP
 }
 
+void FactoryRegistryEntry::arg_check(const PMCList &args, const size_t nargs)
+{
+    if (args.size() != nargs) throw std::runtime_error(str(boost::format(
+        "factory expected %u arguments but for %u") % nargs % args.size()));
+}
+
 typedef std::map<std::string, boost::shared_ptr<FactoryRegistryEntry> > FactoryRegistryType;
 
 static FactoryRegistryType &get_factory_registry(void)
-- 
cgit