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deprecation: Add a two-element form for simple aliases. 

* guix/deprecation.scm (define-deprecated): Add a two-element form for
simple aliases: (define-deprecated old new).
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Ludovic Courtès 2020-01-10 11:27:29 +01:00
parent 6b9839e29a
commit 6e36f1cabd
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1 changed files with 6 additions and 2 deletions
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guix/deprecation.scm
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@ -1,5 +1,5 @@
;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2019 Ludovic Courtès <ludo@gnu.org>
;;; Copyright © 2019, 2020 Ludovic Courtès <ludo@gnu.org>
;;;
;;; This file is part of GNU Guix.
;;;
@ -44,6 +44,7 @@
"Define a deprecated variable or procedure, along these lines:
(define-deprecated foo bar 42)
(define-deprecated old new)
(define-deprecated (baz x y) qux (qux y x))
This will write a deprecation warning to GUIX-WARNING-PORT."
@ -73,7 +74,10 @@ This will write a deprecation warning to GUIX-WARNING-PORT."
#'(real args (... ...)))
(id
(identifier? #'id)
#'real))))))))))
#'real)))))))
((_ variable alias)
(identifier? #'alias)
#'(define-deprecated variable alias alias)))))
(define-syntax-rule (define-deprecated/alias deprecated replacement)
"Define as an alias a deprecated variable, procedure, or macro, along