The defclass-std Reference Manual

This is the defclass-std Reference Manual, version 0.1.1, generated automatically by Declt version 3.0 "Montgomery Scott" on Tue Apr 28 11:39:54 2020 GMT+0.

1 Introduction

defclass-std - Standard class writing macro

Most times, when sketching out a new class, I often commit lots of typos and forget to add an :initform.

Also, the throw away class designed in the beginning may thrive and stay the same. If only there was a way to overcome these problems... There is!

This simple macro atempts to give a very DRY and succint interface to the common DEFCLASS form. The goal is to offer most of the capabilities of a normal DEFCLASS, only in a more compact way.

Everything compiles down to DEFCLASS.

Usage

* (ql:quickload :defclass-std)
; => (:DEFCLASS-STD)
* (import 'defclass-std:defclass/std)
; => T

A simple class defined with DEFCLASS/STD looks like this:

(defclass/std example ()
  ((slot1 slot2 slot3)))

; which expands to:

(DEFCLASS EXAMPLE ()
  ((SLOT1 :ACCESSOR SLOT1 :INITARG :SLOT1 :INITFORM NIL)
   (SLOT2 :ACCESSOR SLOT2 :INITARG :SLOT2 :INITFORM NIL)
   (SLOT3 :ACCESSOR SLOT3 :INITARG :SLOT3 :INITFORM NIL)))

As you can see, by default, the macro adds three options:

:accessor + the name of the slot
:initarg + the name of the slot
:initform nil

If you want to change the :initform value, you can use the :std option:

(defclass std-test ()
  ((slot :std 1)))

; expands to:

(DEFCLASS STD-TEST ()
  ((SLOT :ACCESSOR SLOT :INITARG :SLOT :INITFORM 1)))

If you want to omit the :initform option, you have two ways:

Use :std :unbound explicitly
Change the value of *default-std*. By default it is set to T, so, when the :std option is omitted, :initform is set to nil. When *default-std* is set to nil, :initform is omitted when :std is omitted.

(defclass/std omit-std ()
  ((slot :std :unbound)))

; which is (semantically) equivalent to:
(eval-when (:compile-toplevel :load-toplevel :execute)
  (setf *default-std* nil))
(defclass/std omit-std ()
  ((slot)))

; which (both) expands to:

(DEFCLASS OMIT-STD ()
  ((SLOT :ACCESSOR SLOT :INITARG :SLOT)))

:a, :i, :r and :w are connected: when all of them are omitted, :a and :i are inserted by default.

:a stands for :accessor, :i stands for :initarg, :r stands for :reader and :w stands for :writer.

If any of those is present, the default (:a and :i) is omitted.

(defclass/std airw ()
  ((slot1 slot2)
   (slot3 slot4 :r)
   (slot5 :w)
   (slot6 :a)
   (slot7 :ri)))

; which expands to:

(DEFCLASS AIRW ()
  ((SLOT1 :ACCESSOR SLOT1 :INITARG :SLOT1 :INITFORM NIL)
   (SLOT2 :ACCESSOR SLOT2 :INITARG :SLOT2 :INITFORM NIL)
   (SLOT3 :READER SLOT3 :INITFORM NIL)
   (SLOT4 :READER SLOT4 :INITFORM NIL)
   (SLOT5 :WRITER SLOT5 :INITFORM NIL)
   (SLOT6 :ACCESSOR SLOT6 :INITFORM NIL)
   (SLOT7 :READER SLOT7 :INITARG :SLOT7 :INITFORM NIL)))

Note that slot7 has an :ri option. That's just :r and :i together.

If you want to use :r and :w together, use :a instead, or you'll get an error. The same stands for :a + :r and :a + :w.

You can choose to add the class name as a prefix for the acessor/reader/writer function. Just put :with or :with-prefix option.

(defclass/std example ()
  ((slot1 :with)
   (slot2)))

; which expands to:

(DEFCLASS EXAMPLE ()
  ((SLOT1 :ACCESSOR EXAMPLE-SLOT1 :INITARG :SLOT1 :INITFORM NIL)
   (SLOT2 :ACCESSOR SLOT2 :INITARG :SLOT2 :INITFORM NIL)))

To make a slot static (class-allocated), use :@@ or :static.

To declare the type of a slot or to add documentation to a slot, use :type and :doc, respectively.

For real quick, concise, dense and standard class definitions, use CLASS/STD:

(class/std example slot1 slot2 slot3)

; which expands to:

(DEFCLASS/STD EXAMPLE ()
  ((SLOT1 SLOT2 SLOT3)))

; which expands to:

(DEFCLASS EXAMPLE ()
  ((SLOT1 :ACCESSOR SLOT1 :INITARG :SLOT1 :INITFORM NIL)
   (SLOT2 :ACCESSOR SLOT2 :INITARG :SLOT2 :INITFORM NIL)
   (SLOT3 :ACCESSOR SLOT3 :INITARG :SLOT3 :INITFORM NIL)))

You can also add the prefix by default by changing the value of the *with-prefix* special variable (defaults to nil):

(eval-when (:compile-toplevel :load-toplevel :execute)
  (setf *with-prefix* t))
(defclass/std pre ()
  ((fix)))

; which expands to:

(DEFCLASS PRE ()
  ((FIX :ACCESSOR PRE-FIX :INITARG :FIX)))

Unknown keywords are left intact:

(defclass/std unknown ()
  ((slot :unknown :keywords)))

; which expands to:

(DEFCLASS UNKNOWN ()
  ((SLOT :ACCESSOR SLOT :INITARG :SLOT :INITFORM NIL :KEYWORDS :UNKNOWN)))


; Or, even using custom accessors:

(defclass/std unknown ()
  ((slot :unknown :wi :keywords)))

; which expands to:

(DEFCLASS UNKNOWN ()
  ((SLOT :WRITER SLOT :INITARG :SLOT :INITFORM NIL :KEYWORDS :UNKNOWN)))

Examples

(defclass/std computer (gadget)
  ((screen mouse keyboard :a :type string :with-prefix)
   (bluetooth touchpad :wi)
   (speaker microphone :r)
   (place :@@ :with :doc "Where it is" :r)
   (owner :static :std "Me" :w)))

  ; expands to:

(DEFCLASS COMPUTER (GADGET)
  ((SCREEN :ACCESSOR COMPUTER-SCREEN :INITFORM NIL :TYPE STRING)
   (MOUSE :ACCESSOR COMPUTER-MOUSE :INITFORM NIL :TYPE STRING)
   (KEYBOARD :ACCESSOR COMPUTER-KEYBOARD :INITFORM NIL :TYPE STRING)
   (BLUETOOTH :WRITER BLUETOOTH :INITARG :BLUETOOTH :INITFORM NIL)
   (TOUCHPAD :WRITER TOUCHPAD :INITARG :TOUCHPAD :INITFORM NIL)
   (SPEAKER :READER SPEAKER :INITFORM NIL)
   (MICROPHONE :READER MICROPHONE :INITFORM NIL)
   (PLACE :READER COMPUTER-PLACE :INITFORM NIL :ALLOCATION :CLASS
          :DOCUMENTATION "Where it is")
   (OWNER :WRITER OWNER :INITFORM "Me" :ALLOCATION :CLASS)))

Real life examples:

From cl-inflector:

(defclass language ()
  ((name :accessor name :initarg :name :initform nil)
   (plurals :accessor plurals :initarg :plurals :initform nil)
   (singulars :accessor singulars :initarg :singulars :initform nil)
   (uncountables :accessor uncountables :initarg :uncountables :initform nil)
   (irregulars :accessor irregulars :initarg :irregulars :initform nil)))

; could be written:

(defclass/std language ()
  ((name plurals singulars uncountables irregulars)))

; or, using CLASS/STD:

(class/std language name plurals singulars uncountables irregulars)

From clack:

(defclass <handler> ()
     ((server-name :type keyword
                   :initarg :server-name
                   :accessor server-name)
      (acceptor :initarg :acceptor
                :accessor acceptor)))

; could be written (with *default-std* set to nil)
(defclass/std language ()
  ((server-name :type keyword)
   (acceptor)))

From RESTAS:

(defclass route (routes:route)
  ((symbol :initarg :symbol :reader route-symbol)
   (module :initarg :module :initform nil :reader route-module)
   (required-method :initarg :required-method :initform nil
                    :reader route-required-method)
   (arbitrary-requirement :initarg :arbitrary-requirement :initform nil
                          :reader route-arbitrary-requirement)
   (render-method :initarg :render-method :initform #'identity)
   (headers :initarg :headers :initform nil :reader route-headers)
   (variables :initarg :variables :initform nil)
   (additional-variables :initarg :additional-variables :initform nil)))

; could be written
(defclass/std route (routes-route)
  ((symbol :ri :with-prefix :std :unbound)
   (module required-method arbitrary-requirement
           headers variables additional-variables :ri)
   (render-method :i :std #'identity)
   (header :ir)))

From defclass-star example:

(defclass configuration ()
  ((package-name      :type symbol  :initarg :package-name      :accessor package-name-of)
   (package-nicknames :initform '() :initarg :package-nicknames :accessor package-nicknames-of)
   (included-files    :initform '() :initarg :included-files    :accessor included-files-of)
   (gccxml-path       :initform "gccxml" :initarg :gccxml-path  :accessor gccxml-path-of)
   (gccxml-flags      :initform ""  :initarg :gccxml-flags      :accessor gccxml-flags-of)
   (hidden-symbols    :initform '() :initarg :hidden-symbols    :accessor hidden-symbols-of)
   (output-filename   :initform nil :initarg :output-filename   :accessor output-filename-of)
   (options           :initform (standard-configuration-options)
                      :initarg :options
                      :accessor options-of)
   (symbol-export-filter :initform 'standard-symbol-export-filter
                         :type (or (function (symbol)) symbol)
                         :initarg :symbol-export-filter
                         :accessor symbol-export-filter-of)
   (function-name-transformer :initform 'standard-name-transformer
                              :type (or (function (string)) symbol)
                              :initarg :function-name-transformer
                              :accessor function-name-transformer-of)
   (variable-name-transformer :initform 'standard-name-transformer
                              :type (or (function (string)) symbol)
                              :initarg :variable-name-transformer
                              :accessor variable-name-transformer-of)
   (type-name-transformer :initform 'standard-name-transformer
                          :type (or (function (string)) symbol)
                          :initarg :type-name-transformer
                          :accessor type-name-transformer-of)
   (temp-directory    :initform (make-pathname :directory "/tmp")
                      :initarg :temp-directory
                      :accessor temp-directory-of)
   (working-directory :initform *default-pathname-defaults*
                      :initarg :working-directory
                      :accessor working-directory-of)))

;;; And the equivalent defclass* version (56 tree leaves):
(defclass* configuration ()
  ((package-name
                              :type symbol)
   (package-nicknames         '())
   (included-files            '())
   (gccxml-path               "gccxml")
   (gccxml-flags              "")
   (hidden-symbols            '())
   (output-filename           nil)
   (options                   (standard-configuration-options))
   (symbol-export-filter      'standard-symbol-export-filter
                              :type (or (function (symbol)) symbol))
   (function-name-transformer 'standard-name-transformer
                              :type (or (function (string)) symbol))
   (variable-name-transformer 'standard-name-transformer
                              :type (or (function (string)) symbol))
   (type-name-transformer     'standard-name-transformer
                              :type (or (function (string)) symbol))
   (temp-directory            (make-pathname :directory "/tmp"))
   (working-directory         *default-pathname-defaults*)))

;; And the equivalent defclass/std version (46 tree leaves):
(defclass/std configuration ()
  ((package-name :type symbol :std :unbound)
   (package-nicknames included-files hidden-symbols output-filename)
   (gccxml-path :std "gccxml")
   (gccxml-flags :std "")
   (options :std (standard-configuration-options))
   (symbol-export-filter :std 'standard-symbol-export-filter
                         :type (or (function (symbol)) symbol))
   (function-name-transformer variable-name-transformer type-name-transformer
                              :std 'standard-name-transformer
                              :type (or (function (string)) symbol))
   (temp-directory :std (make-pathname :directory "/tmp"))
   (working-directory :std *default-pathname-defaults*)))

From cl-hue:

(defclass light ()
  ((bridge :initarg :bridge :accessor light-bridge)
   (number :initarg :number :accessor light-number)
   (type :initarg :type :accessor light-type)
   (name :initarg :name :accessor light-name)
   (modelid :initarg :modelid :accessor light-modelid)
   (uniqueid :initarg :uniqueid :accessor light-uniqueid)
   (swversion :initarg :swversion :accessor light-swversion)
   (pointsymbol :initarg :pointsymbol :accessor light-pointsymbol)
   (on :initarg :on :accessor light-on-p)
   (brightness :initarg :brightness :accessor light-brightness)
   (hue :initarg :hue :accessor light-hue)
   (saturation :initarg :saturation :accessor light-saturation)
   (xy :initarg :xy :accessor light-xy)
   (ct :initarg :ct :accessor light-ct)
   (alert :initarg :alert :accessor light-alert)
   (effect :initarg :effect :accessor light-effect)
   (colormode :initarg :colormode :accessor light-colormode)
   (reachable :initarg :reachable :accessor light-reachable-p)))

; could be written:
(defclass/std light ()
  ((bridge number type name modelid uniqueid swversion pointsymbol on brightness
           hue saturation xy ct alert effect colormode reachable
           :with-prefix :std :unbound)))

; or, using class/std:

(class/std light
  bridge number type name modelid uniqueid swversion pointsymbol on brightness
  hue saturation xy ct alert effect colormode reachable
  :std :unbound :with)

; or, with *default-std* set to nil and *with-prefix* set to t:

(class/std light
  bridge number type name modelid uniqueid swversion pointsymbol on brightness
  hue saturation xy ct alert effect colormode reachable)

There's a shortcut to setup a basic printing behaviour of a class, using printing-unreadably:

(printing-unreadably (field2 field3) (class/std myclass field1 field2 field3))

; which expands to:

(PROGN
  (CLASS/STD MYCLASS FIELD1 FIELD2 FIELD3)
  (DEFMETHOD PRINT-OBJECT ((MYCLASS MYCLASS) #:STREAM1722)
    (PRINT-UNREADABLE-OBJECT (MYCLASS #:STREAM1722 :TYPE T :IDENTITY T)
      (FORMAT #:STREAM1722 "FIELD2: ~s, FIELD3: ~s"
              (FIELD2 MYCLASS) (FIELD3 MYCLASS)))))

Dependencies

This project depends only on Anaphora and Alexandria libraries. The test package uses the prove test library.

Installation

Available on Quicklisp:

(ql:quickload :defclass-std)

Bugs

If you find any bug or inconsistency in the code, or if you find it too hard to use, please, feel free to open an issue.

Tests

This library is tested under ABCL, SBCL, CCL, CLISP and ECL Common Lisp implementations.

To run all the defined tests, use:

* (asdf:test-system :defclass-std)
; prints lots of (colorful) stuff...
; => T

Tests are ran with Travis CI and Circle CI using cl-travis, CIM, cl-coveralls and Roswell. Check it out!

Authors

License

LLGPL.

2 Systems

The main system appears first, followed by any subsystem dependency.

2.1 `defclass-std`

Maintainer

André Miranda

Author

André Miranda

Contact

andremiramor@gmail.com

Home Page

https://github.com/EuAndreh/defclass-std

Source Control

(:git "git@github.com:euandreh/defclass-std.git")

Bug Tracker

https://github.com/EuAndreh/defclass-std/issues

License

LLGPL

Description

A shortcut macro to write DEFCLASS forms quickly.

Long Description

# defclass-std - Standard class writing macro
[![Quicklisp](http://quickdocs.org/badge/defclass-std.svg)](http://quickdocs.org/defclass-std/)
[![Build Status](https://travis-ci.org/EuAndreh/defclass-std.svg?branch=master)](https://travis-ci.org/EuAndreh/defclass-std)
[![Circle CI](https://circleci.com/gh/EuAndreh/defclass-std.svg?style=svg)](https://circleci.com/gh/EuAndreh/defclass-std)
[![Coverage Status](https://coveralls.io/repos/EuAndreh/defclass-std/badge.svg?branch=master)](https://coveralls.io/r/EuAndreh/defclass-std?branch=master)

Most times, when sketching out a new class, I often commit lots of typos and forget to add an ‘:initform‘.

Also, the throw away class designed in the beginning may thrive and stay the same. If only there was a way to overcome these problems... There is!

This simple macro atempts to give a very DRY and succint interface to the common ‘DEFCLASS‘ form. The goal is to offer most of the capabilities of a normal ‘DEFCLASS‘, only in a more compact way.

Everything compiles down to ‘DEFCLASS‘.

## Usage
“‘lisp
* (ql:quickload :defclass-std)
; => (:DEFCLASS-STD)
* (import ’defclass-std:defclass/std)
; => T
“‘

A simple class defined with ‘DEFCLASS/STD‘ looks like this:
“‘lisp
(defclass/std example ()
((slot1 slot2 slot3)))

; which expands to:

(DEFCLASS EXAMPLE ()
((SLOT1 :ACCESSOR SLOT1 :INITARG :SLOT1 :INITFORM NIL)
(SLOT2 :ACCESSOR SLOT2 :INITARG :SLOT2 :INITFORM NIL)
(SLOT3 :ACCESSOR SLOT3 :INITARG :SLOT3 :INITFORM NIL)))
“‘
As you can see, by default, the macro adds three options:
1. ‘:accessor‘ + the name of the slot
2. ‘:initarg‘ + the name of the slot
3. ‘:initform nil‘

If you want to change the ‘:initform‘ value, you can use the ‘:std‘ option:
“‘lisp
(defclass std-test ()
((slot :std 1)))

; expands to:

(DEFCLASS STD-TEST ()
((SLOT :ACCESSOR SLOT :INITARG :SLOT :INITFORM 1)))
“‘

If you want to omit the ‘:initform‘ option, you have two ways:
1. Use ‘:std :unbound‘ explicitly
2. Change the value of ‘*default-std*‘. By default it is set to ‘T‘, so, when the ‘:std‘ option is omitted, ‘:initform‘ is set to nil. When ‘*default-std*‘ is set to nil, ‘:initform‘ is omitted when ‘:std‘ is omitted.
“‘lisp
(defclass/std omit-std ()
((slot :std :unbound)))

; which is (semantically) equivalent to:
(eval-when (:compile-toplevel :load-toplevel :execute)
(setf *default-std* nil))
(defclass/std omit-std ()
((slot)))

; which (both) expands to:

(DEFCLASS OMIT-STD ()
((SLOT :ACCESSOR SLOT :INITARG :SLOT)))
“‘

‘:a‘, ‘:i‘, ‘:r‘ and ‘:w‘ are connected: when all of them are omitted, ‘:a‘ and ‘:i‘ are inserted by default.

‘:a‘ stands for ‘:accessor‘, ‘:i‘ stands for ‘:initarg‘, ‘:r‘ stands for ‘:reader‘ and ‘:w‘ stands for ‘:writer‘.

If any of those is present, the default (‘:a‘ and ‘:i‘) is omitted.
“‘lisp
(defclass/std airw ()
((slot1 slot2)
(slot3 slot4 :r)
(slot5 :w)
(slot6 :a)
(slot7 :ri)))

; which expands to:

(DEFCLASS AIRW ()
((SLOT1 :ACCESSOR SLOT1 :INITARG :SLOT1 :INITFORM NIL)
(SLOT2 :ACCESSOR SLOT2 :INITARG :SLOT2 :INITFORM NIL)
(SLOT3 :READER SLOT3 :INITFORM NIL)
(SLOT4 :READER SLOT4 :INITFORM NIL)
(SLOT5 :WRITER SLOT5 :INITFORM NIL)
(SLOT6 :ACCESSOR SLOT6 :INITFORM NIL)
(SLOT7 :READER SLOT7 :INITARG :SLOT7 :INITFORM NIL)))
“‘
Note that slot7 has an ‘:ri‘ option. That’s just ‘:r‘ and ‘:i‘ together.

If you want to use ‘:r‘ and ‘:w‘ together, use ‘:a‘ instead, or you’ll get an error. The same stands for ‘:a‘ + ‘:r‘ and ‘:a‘ + ‘:w‘.

You can choose to add the class name as a prefix for the acessor/reader/writer function. Just put ‘:with‘ or ‘:with-prefix‘ option.

“‘lisp
(defclass/std example ()
((slot1 :with)
(slot2)))

; which expands to:

(DEFCLASS EXAMPLE ()
((SLOT1 :ACCESSOR EXAMPLE-SLOT1 :INITARG :SLOT1 :INITFORM NIL)
(SLOT2 :ACCESSOR SLOT2 :INITARG :SLOT2 :INITFORM NIL)))
“‘

To make a slot static (class-allocated), use ‘:@@‘ or ‘:static‘.

To declare the type of a slot or to add documentation to a slot, use ‘:type‘ and ‘:doc‘, respectively.

For real quick, concise, dense and standard class definitions, use ‘CLASS/STD‘:
“‘lisp
(class/std example slot1 slot2 slot3)

; which expands to:

(DEFCLASS/STD EXAMPLE ()
((SLOT1 SLOT2 SLOT3)))

; which expands to:

(DEFCLASS EXAMPLE ()
((SLOT1 :ACCESSOR SLOT1 :INITARG :SLOT1 :INITFORM NIL)
(SLOT2 :ACCESSOR SLOT2 :INITARG :SLOT2 :INITFORM NIL)
(SLOT3 :ACCESSOR SLOT3 :INITARG :SLOT3 :INITFORM NIL)))
“‘

You can also add the prefix by default by changing the value of the ‘*with-prefix*‘ special variable (defaults to ‘nil‘):
“‘lisp
(eval-when (:compile-toplevel :load-toplevel :execute)
(setf *with-prefix* t))
(defclass/std pre ()
((fix)))

; which expands to:

(DEFCLASS PRE ()
((FIX :ACCESSOR PRE-FIX :INITARG :FIX)))
“‘

Unknown keywords are left intact:
“‘lisp
(defclass/std unknown ()
((slot :unknown :keywords)))

; which expands to:

(DEFCLASS UNKNOWN ()
((SLOT :ACCESSOR SLOT :INITARG :SLOT :INITFORM NIL :KEYWORDS :UNKNOWN)))

; Or, even using custom accessors:

(defclass/std unknown ()
((slot :unknown :wi :keywords)))

; which expands to:

(DEFCLASS UNKNOWN ()
((SLOT :WRITER SLOT :INITARG :SLOT :INITFORM NIL :KEYWORDS :UNKNOWN)))
“‘
## Examples

“‘lisp
(defclass/std computer (gadget)
((screen mouse keyboard :a :type string :with-prefix)
(bluetooth touchpad :wi)
(speaker microphone :r)
(place :@@ :with :doc "Where it is" :r)
(owner :static :std "Me" :w)))

; expands to:

(DEFCLASS COMPUTER (GADGET)
((SCREEN :ACCESSOR COMPUTER-SCREEN :INITFORM NIL :TYPE STRING)
(MOUSE :ACCESSOR COMPUTER-MOUSE :INITFORM NIL :TYPE STRING)
(KEYBOARD :ACCESSOR COMPUTER-KEYBOARD :INITFORM NIL :TYPE STRING)
(BLUETOOTH :WRITER BLUETOOTH :INITARG :BLUETOOTH :INITFORM NIL)
(TOUCHPAD :WRITER TOUCHPAD :INITARG :TOUCHPAD :INITFORM NIL)
(SPEAKER :READER SPEAKER :INITFORM NIL)
(MICROPHONE :READER MICROPHONE :INITFORM NIL)
(PLACE :READER COMPUTER-PLACE :INITFORM NIL :ALLOCATION :CLASS
:DOCUMENTATION "Where it is")
(OWNER :WRITER OWNER :INITFORM "Me" :ALLOCATION :CLASS)))
“‘

Real life examples:

From [cl-inflector](https://github.com/AccelerationNet/cl-inflector/blob/master/langs.lisp][cl-inflector):
“‘lisp
(defclass language ()
((name :accessor name :initarg :name :initform nil)
(plurals :accessor plurals :initarg :plurals :initform nil)
(singulars :accessor singulars :initarg :singulars :initform nil)
(uncountables :accessor uncountables :initarg :uncountables :initform nil)
(irregulars :accessor irregulars :initarg :irregulars :initform nil)))

; could be written:

(defclass/std language ()
((name plurals singulars uncountables irregulars)))

; or, using CLASS/STD:

(class/std language name plurals singulars uncountables irregulars)
“‘
From [clack](https://github.com/fukamachi/clack/blob/9804d0b57350032ebdcf8539bae376b5528ac1f6/src/core/handler.lisp):
“‘lisp
(defclass <handler> ()
((server-name :type keyword
:initarg :server-name
:accessor server-name)
(acceptor :initarg :acceptor
:accessor acceptor)))

; could be written (with *default-std* set to nil)
(defclass/std language ()
((server-name :type keyword)
(acceptor)))
“‘
From [RESTAS](https://github.com/archimag/restas/blob/3e37f868141c785d2468fab342d57cca2e2a40dd/src/route.lisp):
“‘lisp
(defclass route (routes:route)
((symbol :initarg :symbol :reader route-symbol)
(module :initarg :module :initform nil :reader route-module)
(required-method :initarg :required-method :initform nil
:reader route-required-method)
(arbitrary-requirement :initarg :arbitrary-requirement :initform nil
:reader route-arbitrary-requirement)
(render-method :initarg :render-method :initform #’identity)
(headers :initarg :headers :initform nil :reader route-headers)
(variables :initarg :variables :initform nil)
(additional-variables :initarg :additional-variables :initform nil)))

; could be written
(defclass/std route (routes-route)
((symbol :ri :with-prefix :std :unbound)
(module required-method arbitrary-requirement
headers variables additional-variables :ri)
(render-method :i :std #’identity)
(header :ir)))
“‘
From [defclass-star example](http://common-lisp.net/project/defclass-star/configuration.lisp.html):
“‘lisp
(defclass configuration ()
((package-name :type symbol :initarg :package-name :accessor package-name-of)
(package-nicknames :initform ’() :initarg :package-nicknames :accessor package-nicknames-of)
(included-files :initform ’() :initarg :included-files :accessor included-files-of)
(gccxml-path :initform "gccxml" :initarg :gccxml-path :accessor gccxml-path-of)
(gccxml-flags :initform "" :initarg :gccxml-flags :accessor gccxml-flags-of)
(hidden-symbols :initform ’() :initarg :hidden-symbols :accessor hidden-symbols-of)
(output-filename :initform nil :initarg :output-filename :accessor output-filename-of)
(options :initform (standard-configuration-options)
:initarg :options
:accessor options-of)
(symbol-export-filter :initform ’standard-symbol-export-filter
:type (or (function (symbol)) symbol)
:initarg :symbol-export-filter
:accessor symbol-export-filter-of)
(function-name-transformer :initform ’standard-name-transformer
:type (or (function (string)) symbol)
:initarg :function-name-transformer
:accessor function-name-transformer-of)
(variable-name-transformer :initform ’standard-name-transformer
:type (or (function (string)) symbol)
:initarg :variable-name-transformer
:accessor variable-name-transformer-of)
(type-name-transformer :initform ’standard-name-transformer
:type (or (function (string)) symbol)
:initarg :type-name-transformer
:accessor type-name-transformer-of)
(temp-directory :initform (make-pathname :directory "/tmp")
:initarg :temp-directory
:accessor temp-directory-of)
(working-directory :initform *default-pathname-defaults*
:initarg :working-directory
:accessor working-directory-of)))

;;; And the equivalent defclass* version (56 tree leaves):
(defclass* configuration ()
((package-name
:type symbol)
(package-nicknames ’())
(included-files ’())
(gccxml-path "gccxml")
(gccxml-flags "")
(hidden-symbols ’())
(output-filename nil)
(options (standard-configuration-options))
(symbol-export-filter ’standard-symbol-export-filter
:type (or (function (symbol)) symbol))
(function-name-transformer ’standard-name-transformer
:type (or (function (string)) symbol))
(variable-name-transformer ’standard-name-transformer
:type (or (function (string)) symbol))
(type-name-transformer ’standard-name-transformer
:type (or (function (string)) symbol))
(temp-directory (make-pathname :directory "/tmp"))
(working-directory *default-pathname-defaults*)))

;; And the equivalent defclass/std version (46 tree leaves):
(defclass/std configuration ()
((package-name :type symbol :std :unbound)
(package-nicknames included-files hidden-symbols output-filename)
(gccxml-path :std "gccxml")
(gccxml-flags :std "")
(options :std (standard-configuration-options))
(symbol-export-filter :std ’standard-symbol-export-filter
:type (or (function (symbol)) symbol))
(function-name-transformer variable-name-transformer type-name-transformer
:std ’standard-name-transformer
:type (or (function (string)) symbol))
(temp-directory :std (make-pathname :directory "/tmp"))
(working-directory :std *default-pathname-defaults*)))
“‘
From [cl-hue](https://github.com/jd/cl-hue/blob/master/cl-hue.lisp):
“‘lisp
(defclass light ()
((bridge :initarg :bridge :accessor light-bridge)
(number :initarg :number :accessor light-number)
(type :initarg :type :accessor light-type)
(name :initarg :name :accessor light-name)
(modelid :initarg :modelid :accessor light-modelid)
(uniqueid :initarg :uniqueid :accessor light-uniqueid)
(swversion :initarg :swversion :accessor light-swversion)
(pointsymbol :initarg :pointsymbol :accessor light-pointsymbol)
(on :initarg :on :accessor light-on-p)
(brightness :initarg :brightness :accessor light-brightness)
(hue :initarg :hue :accessor light-hue)
(saturation :initarg :saturation :accessor light-saturation)
(xy :initarg :xy :accessor light-xy)
(ct :initarg :ct :accessor light-ct)
(alert :initarg :alert :accessor light-alert)
(effect :initarg :effect :accessor light-effect)
(colormode :initarg :colormode :accessor light-colormode)
(reachable :initarg :reachable :accessor light-reachable-p)))

; could be written:
(defclass/std light ()
((bridge number type name modelid uniqueid swversion pointsymbol on brightness
hue saturation xy ct alert effect colormode reachable
:with-prefix :std :unbound)))

; or, using class/std:

(class/std light
bridge number type name modelid uniqueid swversion pointsymbol on brightness
hue saturation xy ct alert effect colormode reachable
:std :unbound :with)

; or, with *default-std* set to nil and *with-prefix* set to t:

(class/std light
bridge number type name modelid uniqueid swversion pointsymbol on brightness
hue saturation xy ct alert effect colormode reachable)
“‘

There’s a shortcut to setup a basic printing behaviour of a class, using ‘printing-unreadably‘:
“‘lisp
(printing-unreadably (field2 field3) (class/std myclass field1 field2 field3))

; which expands to:

(PROGN
(CLASS/STD MYCLASS FIELD1 FIELD2 FIELD3)
(DEFMETHOD PRINT-OBJECT ((MYCLASS MYCLASS) #:STREAM1722)
(PRINT-UNREADABLE-OBJECT (MYCLASS #:STREAM1722 :TYPE T :IDENTITY T)
(FORMAT #:STREAM1722 "FIELD2: ~s, FIELD3: ~s"
(FIELD2 MYCLASS) (FIELD3 MYCLASS)))))
“‘

## Dependencies
This project depends only on [Anaphora](http://common-lisp.net/project/anaphora/) and [Alexandria](https://common-lisp.net/project/alexandria/) libraries. The test package uses the [prove](github.com/fukamachi/prove) test library.

## Installation
Available on [Quicklisp](http://quicklisp.org):
“‘
(ql:quickload :defclass-std)
“‘

## Bugs
If you find any bug or inconsistency in the code, or if you find it too hard to use, please, feel free to open an issue.

## Tests
This library is tested under [ABCL](https://common-lisp.net/project/armedbear/), [SBCL](http://www.sbcl.org/), [CCL](http://ccl.clozure.com/), [CLISP](http://www.clisp.org/) and [ECL](https://common-lisp.net/project/ecl/) Common Lisp implementations.

To run all the defined tests, use:
“‘lisp
* (asdf:test-system :defclass-std)
; prints lots of (colorful) stuff...
; => T
“‘
Tests are ran with [Travis CI](https://travis-ci.org/EuAndreh/defclass-std) and [Circle CI](https://circleci.com/gh/EuAndreh/defclass-std) using [cl-travis](https://github.com/luismbo/cl-travis), [CIM](https://github.com/KeenS/CIM), [cl-coveralls](https://github.com/fukamachi/cl-coveralls) and [Roswell](https://github.com/snmsts/roswell). Check it out!

## Authors
+ [André Miranda](https://github.com/EuAndreh)
+ [Joram Schrijver](https://github.com/jorams)

## License
[LLGPL](https://tldrlegal.com/license/lisp-lesser-general-public-license#fulltext).

Version

0.1.1

Dependencies

alexandria
anaphora

Source

defclass-std.asd (file)

Components

src (module)
readme.md (file)

3 Modules

Modules are listed depth-first from the system components tree.

3.1 `defclass-std/src`

Parent: defclass-std (system)
Location: src/
Component: defclass-std.lisp (file)

4 Files

Files are sorted by type and then listed depth-first from the systems components trees.

4.1 Lisp

4.1.1 `defclass-std.asd`

Location: defclass-std.asd
Systems: defclass-std (system)

4.1.2 `defclass-std/src/defclass-std.lisp`

Parent

src (module)

Location

src/defclass-std.lisp

Packages

defclass-std

Exported Definitions

*default-std* (special variable)
*with-prefix* (special variable)
class/std (macro)
defclass/std (macro)
printing-unreadably (macro)

Internal Definitions

*default-added-keywords* (special variable)
*fusionable-keywords* (special variable)
*fusioned-keyword-combinations* (special variable)
*paired-keywords* (special variable)
*standalone-keywords* (special variable)
check-for-repeated-keywords (function)
extract-slot-names (function)
extract-unkown-keywords (function)
process-slots (function)
remove-all (function)
replace-keywords (function)
split-fusioned-keywords (function)

4.2 Static

4.2.1 `defclass-std/README.md`

Parent: defclass-std (system)
Location: README.md

5 Packages

Packages are listed by definition order.

5.1 `defclass-std`

Main (and only) project package.

Source

defclass-std.lisp (file)

Use List

common-lisp

Exported Definitions

*default-std* (special variable)
*with-prefix* (special variable)
class/std (macro)
defclass/std (macro)
printing-unreadably (macro)

Internal Definitions

*default-added-keywords* (special variable)
*fusionable-keywords* (special variable)
*fusioned-keyword-combinations* (special variable)
*paired-keywords* (special variable)
*standalone-keywords* (special variable)
check-for-repeated-keywords (function)
extract-slot-names (function)
extract-unkown-keywords (function)
process-slots (function)
remove-all (function)
replace-keywords (function)
split-fusioned-keywords (function)

6 Definitions

Definitions are sorted by export status, category, package, and then by lexicographic order.

6.1 Exported definitions

6.1.1 Special variables

Special Variable: *default-std*

Special var that changes the behaviour of the DEFCLASS/STD macro. If true, adds a :initform nil by default to every field, when unespecified. If false, adds nothing.

Package: defclass-std
Source: defclass-std.lisp (file)

Special Variable: *with-prefix*

Special var that changes the behaviour of the DEFCLASS/STD macro. If tru, adds the class name as a prefix to every accessor/reader/writer function. If false, without the :with/:with-prefix slot option, adds nothing.

Package: defclass-std
Source: defclass-std.lisp (file)

6.1.2 Macros

Macro: class/std NAME &body DEFAULTED-SLOTS

Shortcut macro to the DEFCLASS/STD macro.

Package: defclass-std
Source: defclass-std.lisp (file)

Macro: defclass/std NAME DIRECT-SUPERCLASSES DIRECT-SLOTS &rest OPTIONS

Shortcut macro to the DEFCLASS macro. See README for syntax and usage.

Package: defclass-std
Source: defclass-std.lisp (file)

Macro: printing-unreadably FIELDS-LIST CLASS-STD-FORM &key TYPE IDENTITY

Automatically generates the unreadable printing boiler plate to print classes and its fields (from FIELDS-LIST).

Package: defclass-std
Source: defclass-std.lisp (file)

6.2 Internal definitions

6.2.1 Special variables

Special Variable: *default-added-keywords*

Default abbreviated keywords added when none is found.

Package: defclass-std
Source: defclass-std.lisp (file)

Special Variable: *fusionable-keywords*

All abbreviated keywords that can be fusioned.

Package: defclass-std
Source: defclass-std.lisp (file)

Special Variable: *fusioned-keyword-combinations*

All possible combinations of :a, :i, :r and :w.

Package: defclass-std
Source: defclass-std.lisp (file)

Special Variable: *paired-keywords*

Package: defclass-std
Source: defclass-std.lisp (file)

Special Variable: *standalone-keywords*

Package: defclass-std
Source: defclass-std.lisp (file)

6.2.2 Functions

Function: check-for-repeated-keywords LINE

Verifies if keyword options were repeated. Mainly useful for avoiding things like (:A :AI) together, or (:R :W) instead of (:A).

Package: defclass-std
Source: defclass-std.lisp (file)

Function: extract-slot-names LINE

Finds all slot names in the LINE.

Package: defclass-std
Source: defclass-std.lisp (file)

Function: extract-unkown-keywords LINE

Finds pairs of unknown-keywords (and optional values) in LINE.

Package: defclass-std
Source: defclass-std.lisp (file)

Function: process-slots DIRECT-SLOTS CLASSNAME

Returns the expanded list of DIRECT-SLOTS.

Package: defclass-std
Source: defclass-std.lisp (file)

Function: remove-all ELS LIST

Applies remove recursively. Serves as a version of apeWEOFJIAOPWEIF that keeps the original sequence in the same order.

Package: defclass-std
Source: defclass-std.lisp (file)

Function: replace-keywords LINE PREFIX

Receives a list of slots with keywords and returns a list of lists. Each sublist is a single slot, with all the options appended at the end.

Package: defclass-std
Source: defclass-std.lisp (file)

Function: split-fusioned-keywords LINE

Splits the fusioned keyword option, if present.

Package: defclass-std
Source: defclass-std.lisp (file)

Appendix A Indexes

A.1 Concepts

Jump to:	D F L M S

	Index Entry	Section

D
	`defclass-std.asd`:	The defclass-std․asd file
	`defclass-std/README.md`:	The defclass-std/readme․md file
	`defclass-std/src`:	The defclass-std/src module
	`defclass-std/src/defclass-std.lisp`:	The defclass-std/src/defclass-std․lisp file

F
	File, Lisp, `defclass-std.asd`:	The defclass-std․asd file
	File, Lisp, `defclass-std/src/defclass-std.lisp`:	The defclass-std/src/defclass-std․lisp file
	File, static, `defclass-std/README.md`:	The defclass-std/readme․md file

L
	Lisp File, `defclass-std.asd`:	The defclass-std․asd file
	Lisp File, `defclass-std/src/defclass-std.lisp`:	The defclass-std/src/defclass-std․lisp file

M
	Module, `defclass-std/src`:	The defclass-std/src module

S
	Static File, `defclass-std/README.md`:	The defclass-std/readme․md file

Jump to:	D F L M S

A.2 Functions

Jump to:	C D E F M P R S

	Index Entry	Section

C
	`check-for-repeated-keywords`:	Internal functions
	`class/std`:	Exported macros

D
	`defclass/std`:	Exported macros

E
	`extract-slot-names`:	Internal functions
	`extract-unkown-keywords`:	Internal functions

F
	`Function, check-for-repeated-keywords`:	Internal functions
	`Function, extract-slot-names`:	Internal functions
	`Function, extract-unkown-keywords`:	Internal functions
	`Function, process-slots`:	Internal functions
	`Function, remove-all`:	Internal functions
	`Function, replace-keywords`:	Internal functions
	`Function, split-fusioned-keywords`:	Internal functions

M
	`Macro, class/std`:	Exported macros
	`Macro, defclass/std`:	Exported macros
	`Macro, printing-unreadably`:	Exported macros

P
	`printing-unreadably`:	Exported macros
	`process-slots`:	Internal functions

R
	`remove-all`:	Internal functions
	`replace-keywords`:	Internal functions

S
	`split-fusioned-keywords`:	Internal functions

Jump to:	C D E F M P R S

A.3 Variables

Jump to:	* S

	Index Entry	Section

*
	`default-added-keywords`:	Internal special variables
	`default-std`:	Exported special variables
	`fusionable-keywords`:	Internal special variables
	`fusioned-keyword-combinations`:	Internal special variables
	`paired-keywords`:	Internal special variables
	`standalone-keywords`:	Internal special variables
	`with-prefix`:	Exported special variables

S
	`Special Variable, default-added-keywords`:	Internal special variables
	`Special Variable, default-std`:	Exported special variables
	`Special Variable, fusionable-keywords`:	Internal special variables
	`Special Variable, fusioned-keyword-combinations`:	Internal special variables
	`Special Variable, paired-keywords`:	Internal special variables
	`Special Variable, standalone-keywords`:	Internal special variables
	`Special Variable, with-prefix`:	Exported special variables

Jump to:	* S

A.4 Data types

Jump to:	D P S

	Index Entry	Section

D
	`defclass-std`:	The defclass-std system
	`defclass-std`:	The defclass-std package

P
	`Package, defclass-std`:	The defclass-std package

S
	`System, defclass-std`:	The defclass-std system

Jump to:	D P S

• Introduction		What defclass-std is all about
• Systems		The systems documentation
• Modules		The modules documentation
• Files		The files documentation
• Packages		The packages documentation
• Definitions		The symbols documentation
• Indexes		Concepts, functions, variables and data types

• Concept index
• Function index
• Variable index
• Data type index

• The defclass-std.asd file
• The defclass-std/src/defclass-std.lisp file

The defclass-std Reference Manual

Table of Contents

The defclass-std Reference Manual

1 Introduction

defclass-std - Standard class writing macro

Usage

Examples

Dependencies

Installation

Bugs

Tests

Authors

License

2 Systems

2.1 defclass-std

3 Modules

3.1 defclass-std/src

4 Files

4.1 Lisp

4.1.1 defclass-std.asd

4.1.2 defclass-std/src/defclass-std.lisp

4.2 Static

4.2.1 defclass-std/README.md

5 Packages

5.1 defclass-std

6 Definitions

6.1 Exported definitions

6.1.1 Special variables

6.1.2 Macros

6.2 Internal definitions

6.2.1 Special variables

6.2.2 Functions

Appendix A Indexes

A.1 Concepts

A.2 Functions

A.3 Variables

A.4 Data types

2.1 `defclass-std`

3.1 `defclass-std/src`

4.1.1 `defclass-std.asd`

4.1.2 `defclass-std/src/defclass-std.lisp`

4.2.1 `defclass-std/README.md`

5.1 `defclass-std`