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;;; locations.rkt -- locating symbols
;; Copyright (C) 2009, 2010 Jose Antonio Ortega Ruiz
;; This program is free software; you can redistribute it and/or
;; modify it under the terms of the Modified BSD License. You should
;; have received a copy of the license along with this program. If
;; not, see <http://www.xfree86.org/3.3.6/COPYRIGHT2.html#5>.
;; Start date: Sun Apr 26, 2009 19:43
#lang racket
(provide symbol-location
symbol-location*
module-location
symbol-module
symbol-module-name)
(require geiser/utils geiser/modules)
(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 (make-location name path line)
(list (cons "name" name)
(cons "file" (if (path? path) (path->string path) '()))
(cons "line" (or line '()))))
(define (symbol-location sym)
(let* ([loc (symbol-location* sym)]
[name (car loc)]
[path (cdr loc)])
(if path
(make-location name path #f)
(module-location sym))))
(define symbol-module (compose cdr symbol-location*))
(define symbol-module-name
(compose module-path-name->name symbol-module))
(define (module-location sym)
(make-location sym (module-spec->path-name sym) 1))
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