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-;;; guile-2d
-;;; Copyright (C) 2013, 2014 David Thompson <dthompson2@worcester.edu>
-;;;
-;;; This program is free software: you can redistribute it and/or
-;;; modify it under the terms of the GNU General Public License as
-;;; published by the Free Software Foundation, either version 3 of the
-;;; License, or (at your option) any later version.
-;;;
-;;; This program is distributed in the hope that it will be useful,
-;;; but WITHOUT ANY WARRANTY; without even the implied warranty of
-;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-;;; General Public License for more details.
-;;;
-;;; You should have received a copy of the GNU General Public License
-;;; along with this program. If not, see
-;;; <http://www.gnu.org/licenses/>.
-
-;;; Commentary:
-;;
-;; Wrapper helper procedures.
-;;
-;;; Code:
-
-(define-module (2d wrappers util)
- #:export (define-enumeration))
-
-;; Borrowed from guile-opengl
-(define-syntax-rule (define-enumeration enumerator (name value) ...)
- (define-syntax enumerator
- (lambda (x)
- (syntax-case x ()
- ((_)
- #''(name ...))
- ((_ enum) (number? (syntax->datum #'enum))
- #'enum)
- ((_ enum)
- (or (assq-ref '((name . value) ...)
- (syntax->datum #'enum))
- (syntax-violation 'enumerator "invalid enumerated value"
- #'enum)))))))