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;;; 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)))))
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