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authorJose Antonio Ortega Ruiz <jao@gnu.org>2010-05-23 23:10:52 +0200
committerJose Antonio Ortega Ruiz <jao@gnu.org>2010-05-23 23:10:52 +0200
commit94f76a1565f09d189d9f2cef6d3df7860321709e (patch)
tree766fd38a46c3cd5dd4835ec73f57598d698466cf /scheme/plt/geiser/locations.rkt
parentacceb169d10e6096124a79b57d1c7e2dc447d37d (diff)
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Racket support (PLT 5 needed).
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+;;; locations.ss -- locating symbols
+
+;; Copyright (C) 2009 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 scheme
+
+(provide symbol-location
+ symbol-location*
+ module-location
+ symbol-module-name
+ symbol-module-path-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-path-name (compose cdr symbol-location*))
+
+(define symbol-module-name
+ (compose module-path-name->name symbol-module-path-name))
+
+(define (module-location sym)
+ (make-location sym (module-spec->path-name sym) 1))
+
+
+;;; locations.ss ends here