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inferior: Distinguish inferior exceptions.

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This avoids ambiguities when looking at a backtrace where the exception
was actually thrown by an inferior in a very different context.

* guix/inferior.scm (&inferior-exception): New condition type.
(read-repl-response): Add optional 'inferior' parameter.  Raise
'&inferior-exception' instead of rethrowing to KEY when receiving an
'exception' message.
(read-inferior-response): Pass INFERIOR to 'read-repl-response'.
* tests/inferior.scm ("&inferior-exception"): New test.
This commit is contained in:
Ludovic Courtès
2020-03-10 16:45:57 +01:00
parent c00ae79cca
commit f7537e30b8
2 changed files with 29 additions and 5 deletions
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tests/inferior.scm
+12 -1
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@@ -1,5 +1,5 @@
;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2018, 2019 Ludovic Courtès <ludo@gnu.org>
;;; Copyright © 2018, 2019, 2020 Ludovic Courtès <ludo@gnu.org>
;;;
;;; This file is part of GNU Guix.
;;;
@@ -61,6 +61,17 @@
(close-inferior inferior)
(list a (inferior-object? b))))))
(test-equal "&inferior-exception"
'(a b c d)
(let ((inferior (open-inferior %top-builddir
#:command "scripts/guix")))
(guard (c ((inferior-exception? c)
(close-inferior inferior)
(and (eq? inferior (inferior-exception-inferior c))
(inferior-exception-arguments c))))
(inferior-eval '(throw 'a 'b 'c 'd) inferior)
'badness)))
(test-equal "inferior-packages"
(take (sort (fold-packages (lambda (package lst)
(cons (list (package-name package)