//! A process-local clipboard mirror.
//!
//! Text editing (copy/cut/paste) reads and writes this in-process string, so it
//! works on its own (within one app, and headlessly) with no platform coupling.
//! The platform layer syncs it with the OS clipboard around copy/paste: it
//! pushes the mirror to the OS after a copy/cut and pulls the OS clipboard into
//! the mirror before a paste (see the app's key handling + `Window::clipboard`).
use RefCell;
thread_local!
/// The current clipboard text (the in-process mirror).
/// Replace the clipboard text (the in-process mirror).