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* NEWS: Add doc link. * doc/ref/api-macros.texi (Syntax Transformer Helpers): Document syntax-sourcev. * module/system/syntax.scm: Re-export syntax-sourcev.
43 lines
1.7 KiB
Scheme
43 lines
1.7 KiB
Scheme
;;; Syntax utilities
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;;; Copyright (C) 2017, 2021 Free Software Foundation, Inc.
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;;;; This library is free software; you can redistribute it and/or
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;;;; modify it under the terms of the GNU Lesser General Public
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;;;; License as published by the Free Software Foundation; either
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;;;; version 3 of the License, or (at your option) any later version.
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;;;;
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;;;; This library is distributed in the hope that it will be useful,
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;;;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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;;;; Lesser General Public License for more details.
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;;;;
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;;;; You should have received a copy of the GNU Lesser General Public
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;;;; License along with this library; if not, write to the Free Software
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;;;; Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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;;; Code:
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(define-module (system syntax)
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#:use-module (system syntax internal)
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#:re-export (syntax?
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syntax-local-binding
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(%syntax-module . syntax-module)
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syntax-locally-bound-identifiers
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syntax-session-id
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syntax-sourcev))
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;; Used by syntax.c.
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(define (print-syntax obj port)
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;; FIXME: Use syntax->datum instad of syntax-expression, when
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;; syntax->datum can operate on new syntax objects.
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(let ((src (syntax-sourcev obj)))
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(if src
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(format port "#<syntax:~a:~a:~a ~s>"
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(cond
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((vector-ref src 0) => basename)
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(else "unknown file"))
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(1+ (vector-ref src 1))
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(vector-ref src 2)
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(syntax-expression obj))
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(format port "#<syntax ~s>" (syntax-expression obj)))))
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