Guile-hoot/lib/hoot/dynamic-wind.scm

;;; Dynamic wind
;;; Copyright (C) 2024 Igalia, S.L.
;;;
;;; Licensed under the Apache License, Version 2.0 (the "License");
;;; you may not use this file except in compliance with the License.
;;; You may obtain a copy of the License at
;;;
;;;    http://www.apache.org/licenses/LICENSE-2.0
;;;
;;; Unless required by applicable law or agreed to in writing, software
;;; distributed under the License is distributed on an "AS IS" BASIS,
;;; WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
;;; See the License for the specific language governing permissions and
;;; limitations under the License.

;;; Commentary:
;;;
;;; Dynamic wind.
;;;
;;; Code:

(library (hoot dynamic-wind)
  (export dynamic-wind)
  (import (only (hoot primitives) %dynamic-wind)
          (hoot syntax))

  (define (dynamic-wind wind body unwind)
    (%dynamic-wind
     (lambda () (wind))
     (lambda () (body))
     (lambda () (unwind)))))