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authorjao <jao@gnu.org>2020-07-20 04:41:00 +0100
committerjao <jao@gnu.org>2020-07-20 04:41:00 +0100
commitaab5226dfe937861c54729744e8add15d931f758 (patch)
tree7397e3edaffb23d5efb6aad1762681834faabfa3 /src/geiser/modules.scm
parent20043b13bb9756079d73c68ffd3942cecedb2b9e (diff)
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geiser -> src
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+;;; modules.scm -- module metadata
+
+;; Copyright (C) 2009, 2010, 2011, 2018 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: Mon Mar 02, 2009 02:00
+
+(define-module (geiser modules)
+ #:export (symbol-module
+ program-module
+ module-name?
+ module-path
+ find-module
+ all-modules
+ submodules
+ module-location)
+ #:use-module (geiser utils)
+ #:use-module (system vm program)
+ #:use-module (system vm debug)
+ #:use-module (ice-9 regex)
+ #:use-module (ice-9 session)
+ #:use-module (srfi srfi-1))
+
+;; Return hash table mapping filename to list of modules defined in that
+;; file. H/t andy wingo.
+(define (fill-file->module-mapping! ret)
+ (define (record-module m)
+ (let ((f (module-filename m)))
+ (hash-set! ret f (cons m (hash-ref ret f '())))))
+ (define (visit-module m)
+ (record-module m)
+ (hash-for-each (lambda (k v) (visit-module v))
+ (module-submodules m)))
+ (visit-module (resolve-module '() #f))
+ ret)
+
+(define file->modules (fill-file->module-mapping! (make-hash-table)))
+
+(define (program-file p)
+ (let ((src (program-source p 0)))
+ (and (pair? src) (cadr src))))
+
+(define (program-module p)
+ (let* ((f (program-file p))
+ (mods (or (hash-ref file->modules f)
+ (hash-ref (fill-file->module-mapping! file->modules) f))))
+ (and (pair? mods) (not (null? mods)) (car mods))))
+
+(define (module-name? module-name)
+ (and (list? module-name)
+ (not (null? module-name))
+ (every symbol? module-name)))
+
+(define (symbol-module sym . all)
+ (and sym
+ (catch 'module-name
+ (lambda ()
+ (apropos-fold (lambda (module name var init)
+ (if (eq? name sym)
+ (throw 'module-name (module-name module))
+ init))
+ #f
+ (regexp-quote (symbol->string sym))
+ (if (or (null? all) (not (car all)))
+ (apropos-fold-accessible (current-module))
+ apropos-fold-all)))
+ (lambda (key . args)
+ (and (eq? key 'module-name) (car args))))))
+
+(define (module-location name)
+ (make-location (module-path name) #f))
+
+(define (find-module mod-name)
+ (and (module-name? mod-name)
+ (resolve-module mod-name #f #:ensure #f)))
+
+(define (module-path module-name)
+ (and (module-name? module-name)
+ (or ((@@ (ice-9 session) module-filename) module-name)
+ (module-filename (resolve-module module-name #f)))))
+
+(define (submodules mod)
+ (hash-map->list (lambda (k v) v) (module-submodules mod)))
+
+(define (root-modules)
+ (submodules (resolve-module '() #f)))
+
+(define (all-modules)
+ (define (maybe-name m)
+ (and (module-kind m) (format #f "~A" (module-name m))))
+ (let* ((guile (resolve-module '(guile)))
+ (roots (remove (lambda (m) (eq? m guile)) (root-modules)))
+ (children (append-map all-child-modules roots)))
+ (cons "(guile)" (filter-map maybe-name children))))
+
+(define* (all-child-modules mod #:optional (seen '()))
+ (let ((cs (filter (lambda (m) (not (member m seen))) (submodules mod))))
+ (fold (lambda (m all) (append (all-child-modules m all) all))
+ (list mod)
+ cs)))