__init context is the entry point for running a script module. The DkCoder compiler will inject this function at the top and bottom of the script module. The top __init does nothing, while the bottom __init calls the prior __init.

That means:

1. calling the __init function guarantees that the script module is initialized; that is, all of the script module's side-effects (ex. let () = Format.printf "Hello world@.") are executed before the __init returns to the caller.
2. you can override the __init function by simply defining the __init idempotently. That will shadow the top __init and when the bottom __init is executed your __init will be called instead of the do-nothing top __init.

Future versions of DkCoder will call __init in dependency order for all `You script modules. Your __init function may be called several times.

__repl context is the entry point for debugging a script module in a REPL. The DkCoder compiler will inject this function at the top and bottom of the script module. The top __repl does nothing, while the bottom __repl calls the prior __repl.

That means:

1. you can override the __repl function by simply defining the __repl idempotently. That will shadow the top __repl and when the bottom __repl is executed your __repl will be called instead of the do-nothing top __repl.

The run-time module information for the script module.