doc autoload

* doc autoload
@ 2005-01-01 23:19 Kevin Ryde
  2005-01-02  2:20 ` Ken Raeburn
  0 siblings, 1 reply; 3+ messages in thread
From: Kevin Ryde @ 2005-01-01 23:19 UTC (permalink / raw)

Correction to define-modules #:autoload, it read like the arg was a
single symbol, but it's actually a list.

    `#:autoload MODULE SYMBOL-LIST'
          Load MODULE when any of SYMBOL-LIST are accessed.  For
          example,

               (define-module (my mod)
                 #:autoload (srfi srfi-1) (partition delete-duplicates))
               ...
               (if something
                   (set! foo (delete-duplicates ...)))

          When a module is autoloaded, all it's bindings become
          available.  SYMBOL-LIST is just those that will first trigger
          the load.

          An autoload is a good way to defer loading a big module until
          it's really needed, for instance for faster startup or if it
          will only be needed in certain circumstances.

          `@' can do a similar thing (*note Using Guile Modules::), but
          in that case an `@' form must be written every time a binding
          from the module is used.

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