Forbid context copy

src/commands.cc

@@ -504,7 +504,7 @@ void add_hook(const CommandParameters& params, Context& context)
     auto hook_func = [=](const String& param, const Context& context) {
         if (boost::regex_match(param.begin(), param.end(), regex))
         {
-            Context new_context(context);
+            Context new_context(context.editor());
             CommandManager::instance().execute(command, new_context);
         }
     };

src/context.hh

@@ -23,6 +23,7 @@ struct Context
     Context(Editor&& editor)
         : m_editor(&editor) {}
 
+    Context(const Context&) = delete;
     Context& operator=(const Context&) = delete;
 
     Buffer& buffer() const

src/main.cc

@@ -27,7 +27,6 @@
 using namespace Kakoune;
 using namespace std::placeholders;
 
-
 namespace Kakoune
 {