| ;;; Syntax utilities | |
| ;;; Copyright (C) 2017, 2021 Free Software Foundation, Inc. | |
| ;;;; This library is free software; you can redistribute it and/or | |
| ;;;; modify it under the terms of the GNU Lesser General Public | |
| ;;;; License as published by the Free Software Foundation; either | |
| ;;;; version 3 of the License, or (at your option) any later version. | |
| ;;;; | |
| ;;;; This library 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 | |
| ;;;; Lesser General Public License for more details. | |
| ;;;; | |
| ;;;; You should have received a copy of the GNU Lesser General Public | |
| ;;;; License along with this library; if not, write to the Free Software | |
| ;;;; Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | |
| ;;; Code: | |
| (define-module (system syntax) | |
| #:use-module (system syntax internal) | |
| #:re-export (syntax? | |
| syntax-local-binding | |
| (%syntax-module . syntax-module) | |
| syntax-locally-bound-identifiers | |
| syntax-session-id | |
| syntax-sourcev)) | |
| ;; Used by syntax.c. | |
| (define (print-syntax obj port) | |
| ;; FIXME: Use syntax->datum instad of syntax-expression, when | |
| ;; syntax->datum can operate on new syntax objects. | |
| (let ((src (syntax-sourcev obj))) | |
| (if src | |
| (format port "#<syntax:~a:~a:~a ~s>" | |
| (cond | |
| ((vector-ref src 0) => basename) | |
| (else "unknown file")) | |
| (1+ (vector-ref src 1)) | |
| (vector-ref src 2) | |
| (syntax-expression obj)) | |
| (format port "#<syntax ~s>" (syntax-expression obj))))) | |