1. chibi-generic
    1. API
      1. define-generic
      2. define-method
      3. make-generic
      4. generic-add!
    2. Maintainer
    3. Repository
    4. Version History
    5. License

chibi-generic

Chibi Scheme's simple generic function interface

Original page here: http://synthcode.com/scheme/chibi/lib/chibi/generic.html

API

define-generic

[syntax] (define-generic name)

Define a new generic function named name.

define-method

[syntax] (define-method (name params ...) body ...)

Each parameter in params should be either a single identifier or a list of the form (param type) where param is the parameter name and type is a predicate which returns true if it's argument is of the correct type. Parameters without a predicate will always match. If multiple methods satisfy the arguments, the most recent method will be used. The special form (call-next-method) can be invoked to call the next most recent method with the same arguments.

make-generic

[procedure] (make-generic name)

Create a new first-class generic function named name.

generic-add!

[procedure] (generic-add! g preds f)

Extend the generic g with a new method f that applies when all parameters match the given list of predicates preds.

Maintainer

Diego A. Mundo

Repository

https://github.com/dieggsy/chibi-generic

Version History

0.1.3
Properly exit tests
0.1.2
Separate implementation and module
0.1.1
Add egg synopsis
0.1.0
Initial release

License

Copyright (c) 2009-2018 Alex Shinn
Copyright (c) 2019-2021 Diego A. Mundo
All rights reserved.

Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
   notice, this list of conditions and the following disclaimer.
2. 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.
3. The name of the author may not be used to endorse or promote products
   derived from this software without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.