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;; locations.ss -- locating symbols
;; Copyright (C) 2009 Jose Antonio Ortega Ruiz
;; Author: Jose Antonio Ortega Ruiz <jao@gnu.org>
;; Start date: Sun Apr 26, 2009 19:43
;; This file 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 file 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/>.
;;; Comentary:
;; Finding symbol location
;;; Code:
#lang scheme
(provide symbol-location
symbol-module-name
symbol-module-path-name)
(require geiser/utils)
(define (%symbol-location sym)
(let* ((id (namespace-symbol->identifier sym))
(binding (and id (identifier-binding id))))
(if (list? binding)
(cons
(cadr binding)
(resolved-module-path-name
(module-path-index-resolve (car binding))))
(cons sym #f))))
(define (symbol-location sym)
(let* ((loc (%symbol-location sym))
(name (car loc))
(path (cdr loc)))
(list (cons 'name name)
(cons 'file (if (path? path) (path->string path) '())))))
(define symbol-module-path-name (compose cdr %symbol-location))
(define symbol-module-name
(compose module-path-name->name symbol-module-path-name))
;;; locations.ss ends here
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