oop/goops/old-define-method.scm

   1 ;;; installed-scm-file
   2
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  43 ;;;;
  44 \f
  45
  46 (define-module (oop goops old-define-method)
  47   :use-module (oop goops)
  48   :no-backtrace
  49   )
  50
  51 (export define-method)
  52
  53 (define define-method
  54   (procedure->memoizing-macro
  55     (lambda (exp env)
  56       (let ((name (cadr exp)))
  57         (if (and (pair? name)
  58                  (eq? (car name) 'setter)
  59                  (pair? (cdr name))
  60                  (symbol? (cadr name))
  61                  (null? (cddr name)))
  62             (let ((name (cadr name)))
  63               (cond ((not (symbol? name))
  64                      (goops-error "bad method name: ~S" name))
  65                     ((defined? name env)
  66                      `(begin
  67                         ;; *fixme* Temporary hack for the current module system
  68                         (if (not ,name)
  69                             (define-accessor ,name))
  70                         (add-method! (setter ,name) (method ,@(cddr exp)))))
  71                     (else
  72                      `(begin
  73                         (define-accessor ,name)
  74                         (add-method! (setter ,name) (method ,@(cddr exp)))))))
  75             (cond ((not (symbol? name))
  76                    (goops-error "bad method name: ~S" name))
  77                   ((defined? name env)
  78                    `(begin
  79                       ;; *fixme* Temporary hack for the current module system
  80                       (if (not ,name)
  81                           (define-generic ,name))
  82                       (add-method! ,name (method ,@(cddr exp)))))
  83                   (else
  84                    `(begin
  85                       (define-generic ,name)
  86                       (add-method! ,name (method ,@(cddr exp)))))))))))