Method Function.call_callback()

Method call_callback

void call_callback(function(:void) f, mixed ... args)

Description

Call a callback function, but send throws from the callback function (ie, errors) to master()->handle_error(). Also accepts f being zero (0) without error.

Example

Functions.call_callback(the_callback,some,arguments);
equals
{
     mixed err=catch { if (the_callback) the_callback(some,arguments); };
     if (err) master()->handle_error(err);
  }
(Approximately, since call_callback also calls master()->handle_error
 if 0 were thrown.)