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;;; Commentary:
;; This file should define all global configurable variables which
;; doesn't belong anywhere else. The config module should then import
;; this module, and set all configs as needed. The config module
;; should also be able to set configs gotten from other parts.
;;; Code:
(define-module (util config)
:export (register-config!)
)
(define-public (ensure pred?)
(lambda (v)
(unless (pred? v)
(error (format #f "Value [~s] doesn't satisfy condition ~a"
v (or (procedure-name pred?) ""))))
v))
(define-macro (register-config! name default-value valid-value?)
`(save-module-excursion
(lambda ()
(define mod (resolve-module '(util config all)))
(set-current-module mod)
(module-define! mod (quote ,name)
(make-parameter ,default-value
,valid-value?))
(export ,name))
))
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