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From: Christopher Lam <christopher.lck@gmail.com>
To: guile-user <guile-user@gnu.org>
Subject: srfi-9 vs make-record-type
Date: Sun, 21 Jul 2019 10:20:29 +0000	[thread overview]
Message-ID: <CAKVAZZKUKEJZtQiEZemDSN17S1_D0U_pe_=DdeiL4C9Ve8vpSg@mail.gmail.com> (raw)

Hi All
In experiments converting legacy code to use srfi-9 records, I'm finding
the latter doesn't travel well across modules.

See simple code below -- m1.scm runs fine however m2.scm borks when
creating srfi-9 record object

Any clue why srfi-9 can't be exported?

For various reasons I must keep (load "module.scm") mechanism
----m1.scm follows----
(use-modules (srfi srfi-9))

(define-record-type <person>
  (make-person name age)
  person?
  (name person-name set-person-name!)
  (age person-age set-person-age!))

(define <pet> (make-record-type "pet" '(name age)))
(define make-pet (record-constructor <pet>))
(define pet? (record-predicate <pet>))
(define pet-name (record-accessor <pet> 'name))
(define pet-age (record-accessor <pet> 'age))
(define set-pet-name! (record-modifier <pet> 'name))
(define set-pet-age! (record-modifier <pet> 'age))
(export make-person)
(export make-pet)

(display "pet ")
(let ((pet2 (make-pet "milou" 7)))
  (display (pet-name pet2)))
(display ", person ")
(let ((person2 (make-person "james" 54)))
  (display (person-name person2)))
(newline)
----m2.scm follows----
(load "m1.scm")
(display "in m2:")
(newline)
(display "pet ")
(let ((pet2 (make-pet "milou" 7)))
  (display (pet-name pet2)))
(display ", person ")
(let ((person2 (make-person "james" 54)))
  (display (person-name person2)))
(newline)
--------------------------------
$guile m1.scm runs successfully

pet milou, person james

$guile m2.scm first runs m1.scm but fails to recognise the srfi-9
make-person exists:
pet milou, person james
in m2:
pet milou, person Backtrace:
           6 (apply-smob/1 #<catch-closure 5599248723e0>)
In ice-9/boot-9.scm:
    705:2  5 (call-with-prompt _ _ #<procedure default-prompt-handle…>)
In ice-9/eval.scm:
    619:8  4 (_ #(#(#<directory (guile-user) 559924904140>)))
In ice-9/boot-9.scm:
   2312:4  3 (save-module-excursion _)
  3831:12  2 (_)
In /home/chris/sources/caca/m2.scm:
     8:15  1 (_)
In unknown file:
           0 (_ "james" 54)

ERROR: Wrong type to apply: #<syntax-transformer make-person>


             reply	other threads:[~2019-07-21 10:20 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-07-21 10:20 Christopher Lam [this message]
2019-07-21 19:21 ` srfi-9 vs make-record-type John Cowan
2019-08-05 18:18 ` Mark H Weaver
2019-08-26 12:20   ` Christopher Lam
2020-07-13 13:07     ` Christopher Lam

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