[bug#49513] Add cl-cache-while

[Charles via Guix-patches via <guix-patches@gnu.org>]

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From c4c7bf6d63fa7ef0c426eb51307951fb577fead5 Mon Sep 17 00:00:00 2001
From: Charles <charles.b.jackson@protonmail.com>
Date: Mon, 5 Jul 2021 08:15:12 -0500
Subject: [PATCH] gnu: Add cl-cache-while.

* gnu/packages/lisp-xyz.scm (sbcl-cache-while, ecl-cache-while, cl-cache-while): Add new variables.
---
 gnu/packages/lisp-xyz.scm | 28 ++++++++++++++++++++++++++++
 1 file changed, 28 insertions(+)

diff --git a/gnu/packages/lisp-xyz.scm b/gnu/packages/lisp-xyz.scm
index c4c63958c9..fe1c010811 100644
--- a/gnu/packages/lisp-xyz.scm
+++ b/gnu/packages/lisp-xyz.scm
@@ -9820,6 +9820,34 @@ caching based on arguments (an expanded form of memoization).")
 (define-public ecl-function-cache
   (sbcl-package->ecl-package sbcl-function-cache))
 
+(define-public sbcl-cache-while
+  (let ((commit "38e9ffbdb2c894670c366c1e5802ffcc8cfd43a7")
+        (revision "1"))
+    (package
+      (name "sbcl-cache-while")
+      (version (git-version "0.0.0" revision commit))
+      (source
+       (origin
+         (method git-fetch)
+         (uri (git-reference
+               (url "https://github.com/charje/cache-while")
+               (commit commit)))
+         (file-name (git-file-name "cache-while" version))
+         (sha256
+          (base32 "1qil68rfn5irmkb0jk1f6g1zy80wgc3skl8cr4rfgh7ywgm5izx3"))))
+      (build-system asdf-build-system/sbcl)
+      (home-page "https://github.com/charje/cache-while")
+      (synopsis "Temporary / one-time caching macro for Common Lisp")
+      (description "A Common Lisp macro for defining temporary caches that
+invalidate based on expressions evaluating to different values.")
+      (license license:llgpl))))
+
+(define-public cl-cache-while
+  (sbcl-package->cl-source-package sbcl-cache-while))
+
+(define-public ecl-cache-while
+  (sbcl-package->ecl-package sbcl-cache-while))
+
 (define-public sbcl-type-r
   (let ((commit "83c89e38f2f7a7b16f1012777ecaf878cfa6a267")
         (revision "1"))
-- 
2.32.0