Load modules lazily.
Provides an Emacs-style autoload facility which takes the basic form
- (autoload unit procedure-name ...)syntax
such that the first time procedure-name is called, it will perform a runtime require of 'unit and then apply the procedure from the newly loaded unit to the args it was passed. Subsequent calls to procedure-name will thereafter refer to the new procedure and will thus not incur any overhead.
You may also specify an alias for the procedure, and a default procedure if the library can't be loaded:
- (autoload unit (name alias default) ...)syntax
In this case, although the procedure name from the unit is name, the form defines the autoload procedure as alias.
If the library can't be loaded then an error is signalled, unless default is given, in which case the values are passed to that.
;; load iconv procedures lazily (autoload iconv iconv iconv-open)
;; load some sqlite procedures lazily with "-" names (autoload sqlite (sqlite:open sqlite-open) (sqlite:execute sqlite-execute))
;; load md5 library, falling back on slower scheme version (autoload scheme-md5 (md5:digest scheme-md5:digest)) (autoload md5 (md5:digest #f scheme-md5:digest))
Copyright (c) 2004-2005, Alex Shinn All rights reserved. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. Neither the name of the author nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.
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