Hot code reloading
V has built-in partial support for reloading code at runtime. Such programs change their behavior when the code changes without recompilation.
Build this example with
v -live message.v.
You can also run this example with
v -live run message.v.
Make sure that in command you use a path to a V's file, not a path to
a folder (like
v -live run .) – in that case you need to modify content of
a folder (add new file, for example), because changes in message.v will have no effect.
Functions that you want to be reloaded must have
before their definition.
Right now it's not possible to modify types while the program is running.
More examples, including a graphical application: Hot Reload Examples.