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;;;; rnrs-libraries.test --- test library and import forms -*- scheme -*-
;;;; Copyright (C) 2010, 2012 Free Software Foundation, Inc.
;;;;
;;;; This library is free software; you can redistribute it and/or
;;;; modify it under the terms of the GNU Lesser General Public
;;;; License as published by the Free Software Foundation; either
;;;; version 3 of the License, or (at your option) any later version.
;;;;
;;;; This library 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
;;;; Lesser General Public License for more details.
;;;;
;;;; You should have received a copy of the GNU Lesser General Public
;;;; License along with this library; if not, write to the Free Software
;;;; Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
(define-module (tests rnrs-libraries)
#:use-module (test-suite lib))
;; First, check that Guile modules are r6rs modules.
;;
(with-test-prefix "ice-9 receive"
(define iface #f)
(pass-if "import"
(eval '(begin
(import (ice-9 receive))
#t)
(current-module)))
(pass-if "resolve-interface"
(module? (resolve-interface '(ice-9 receive))))
(set! iface (resolve-interface '(ice-9 receive)))
(pass-if "resolve-r6rs-interface"
(eq? iface (resolve-r6rs-interface '(ice-9 receive))))
(pass-if "resolve-r6rs-interface (2)"
(eq? iface (resolve-r6rs-interface '(library (ice-9 receive)))))
(pass-if "module uses"
(and (memq iface (module-uses (current-module))) #t))
(pass-if "interface contents"
(equal? '(receive)
(hash-map->list (lambda (sym var) sym) (module-obarray iface))))
(pass-if "interface uses"
(null? (module-uses iface)))
(pass-if "version"
(or (not (module-version iface))
(null? (module-version iface))))
(pass-if "calling receive from current env"
(equal? (eval '(receive (a b) (values 10 32)
(+ a b))
(current-module))
42)))
;; And check that r6rs modules are guile modules.
;;
(with-test-prefix "rnrs-test-a"
(define iface #f)
(pass-if "no double"
(not (module-local-variable (current-module) 'double)))
(pass-if "import"
(eval '(begin
(import (tests rnrs-test-a))
#t)
(current-module)))
(pass-if "still no double"
(not (module-local-variable (current-module) 'double)))
(pass-if "resolve-interface"
(module? (resolve-interface '(tests rnrs-test-a))))
(set! iface (resolve-interface '(tests rnrs-test-a)))
(pass-if "resolve-interface (2)"
(eq? iface (resolve-interface '(tests rnrs-test-a))))
(pass-if "resolve-r6rs-interface"
(eq? iface (resolve-r6rs-interface '(tests rnrs-test-a))))
(pass-if "resolve-r6rs-interface (2)"
(eq? iface (resolve-r6rs-interface '(library (tests rnrs-test-a)))))
(pass-if "module uses"
(and (memq iface (module-uses (current-module))) #t))
(pass-if "interface contents"
(equal? '(double)
(hash-map->list (lambda (sym var) sym) (module-obarray iface))))
(pass-if "interface uses"
(null? (module-uses iface)))
(pass-if "version"
(or (not (module-version iface))
(null? (module-version iface))))
(pass-if "calling double"
(equal? ((module-ref iface 'double) 10)
20))
(pass-if "calling double from current env"
(equal? (eval '(double 20) (current-module))
40)))
;; Guile should ignore explicit phase specifications
;;
(with-test-prefix "implicit phasing"
(with-test-prefix "in library form"
(pass-if "explicit phasing ignored"
(import (for (guile) (meta -1))) #t))
(with-test-prefix "in library form"
(pass-if "explicit phasing ignored"
(save-module-excursion
(lambda ()
(library (test)
(export)
(import (for (guile) (meta -1))))
#t)))))
;; Now import features.
;;
(with-test-prefix "import features"
(define iface #f)
(with-test-prefix "only"
(pass-if "contents"
(equal? '(+)
(hash-map->list
(lambda (sym var) sym)
(module-obarray (resolve-r6rs-interface '(only (guile) +)))))))
(with-test-prefix "except"
;; In Guile, interfaces can use other interfaces. For R6RS modules
;; that are imported as-is (without `except', etc), Guile will just
;; import them as-is. `(guile)' is one of those modules. For other
;; import kinds like `except', the resolve-r6rs-interface code will
;; go binding-by-binding and create a new flat interface. Anyway,
;; that means to compare an except interface with (guile), we're
;; comparing a flat interface with a deep interface, so we need to
;; do more work to get the set of bindings in (guile), knowing also
;; that some of those bindings could be duplicates.
(define (bound-name-count mod)
(define (module-for-each/nonlocal f mod)
(define (module-and-uses mod)
(let lp ((in (list mod)) (out '()))
(cond
((null? in) (reverse out))
((memq (car in) out) (lp (cdr in) out))
(else (lp (append (module-uses (car in)) (cdr in))
(cons (car in) out))))))
(for-each (lambda (mod)
(module-for-each f mod))
(module-and-uses mod)))
(hash-fold (lambda (sym var n) (1+ n))
0
(let ((t (make-hash-table)))
(module-for-each/nonlocal (lambda (sym var)
(hashq-set! t sym var))
mod)
t)))
(let ((except-+ (resolve-r6rs-interface '(except (guile) +))))
(pass-if "contains"
(equal? (bound-name-count except-+)
(1- (bound-name-count (resolve-interface '(guile))))))
(pass-if "does not contain"
(not (module-variable except-+ '+)))))
(with-test-prefix "prefix"
(let ((iface (resolve-r6rs-interface '(prefix (ice-9 q) q:))))
(pass-if "contains"
((module-ref iface 'q:q?) ((module-ref iface 'q:make-q))))
(pass-if "does not contain"
(not (module-local-variable iface 'make-q)))))
(with-test-prefix "rename"
(let ((iface (resolve-r6rs-interface
'(rename (only (guile) cons car cdr)
(cons snoc)
(car rac)
(cdr rdc)))))
(pass-if "contents"
(equal? '("rac" "rdc" "snoc")
(sort
(hash-map->list
(lambda (sym var) (symbol->string sym))
(module-obarray iface))
string<)))
(pass-if "contains"
(equal? 3 ((module-ref iface 'rac)
((module-ref iface 'snoc) 3 4))))))
(with-test-prefix "srfi"
(pass-if "renaming works"
(eq? (resolve-interface '(srfi srfi-1))
(resolve-r6rs-interface '(srfi :1)))
(eq? (resolve-interface '(srfi srfi-1))
(resolve-r6rs-interface '(srfi :1 lists)))))
(with-test-prefix "macro"
(pass-if "multiple clauses"
(eval '(begin
(import (rnrs) (for (rnrs) expand) (rnrs))
#t)
(current-module)))))
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