git subrepo clone --branch=sono6good https://github.com/essej/JUCE.git deps/juce

subrepo:
  subdir:   "deps/juce"
  merged:   "b13f9084e"
upstream:
  origin:   "https://github.com/essej/JUCE.git"
  branch:   "sono6good"
  commit:   "b13f9084e"
git-subrepo:
  version:  "0.4.3"
  origin:   "https://github.com/ingydotnet/git-subrepo.git"
  commit:   "2f68596"

deps/juce/modules/juce_events/messages/juce_Message.h

@@ -0,0 +1,64 @@
+/*
+  ==============================================================================
+
+   This file is part of the JUCE library.
+   Copyright (c) 2020 - Raw Material Software Limited
+
+   JUCE is an open source library subject to commercial or open-source
+   licensing.
+
+   The code included in this file is provided under the terms of the ISC license
+   http://www.isc.org/downloads/software-support-policy/isc-license. Permission
+   To use, copy, modify, and/or distribute this software for any purpose with or
+   without fee is hereby granted provided that the above copyright notice and
+   this permission notice appear in all copies.
+
+   JUCE IS PROVIDED "AS IS" WITHOUT ANY WARRANTY, AND ALL WARRANTIES, WHETHER
+   EXPRESSED OR IMPLIED, INCLUDING MERCHANTABILITY AND FITNESS FOR PURPOSE, ARE
+   DISCLAIMED.
+
+  ==============================================================================
+*/
+
+namespace juce
+{
+
+class MessageListener;
+
+
+//==============================================================================
+/** The base class for objects that can be sent to a MessageListener.
+
+    If you want to send a message that carries some kind of custom data, just
+    create a subclass of Message with some appropriate member variables to hold
+    your data.
+
+    Always create a new instance of a Message object on the heap, as it will be
+    deleted automatically after the message has been delivered.
+
+    @see MessageListener, MessageManager, ActionListener, ChangeListener
+
+    @tags{Events}
+*/
+class JUCE_API  Message  : public MessageManager::MessageBase
+{
+public:
+    //==============================================================================
+    /** Creates an uninitialised message. */
+    Message() noexcept;
+    ~Message() override;
+
+    using Ptr = ReferenceCountedObjectPtr<Message>;
+
+    //==============================================================================
+private:
+    friend class MessageListener;
+    WeakReference<MessageListener> recipient;
+    void messageCallback() override;
+
+    // Avoid the leak-detector because for plugins, the host can unload our DLL with undelivered
+    // messages still in the system event queue. These aren't harmful, but can cause annoying assertions.
+    JUCE_DECLARE_NON_COPYABLE (Message)
+};
+
+} // namespace juce