@@ -4796,6 +4796,53 @@ extension which allows the definition of parsers inside the language. There
is also support for writing OCaml syntax extensions in a camlp4 style.")
(license license:cecill-b)))
+(define-public ocaml-timed
+ (package
+ (name "ocaml-timed")
+ (version "1.0")
+ (home-page "https://github.com/rlepigre/ocaml-timed")
+ (source (origin
+ (method git-fetch)
+ (uri (git-reference
+ (url (string-append home-page ".git"))
+ (commit (string-append name "_" version))))
+ (sha256
+ (base32
+ "0hfxz710faxy5yk97bkfnw87r732jcxxhmjppwrbfdb6pd0wks96"))
+ (file-name (git-file-name name version))))
+ (build-system ocaml-build-system)
+ (native-inputs
+ `(("ocaml-findlib" ,ocaml-findlib)))
+ (arguments
+ '(#:phases
+ (modify-phases %standard-phases
+ (delete 'configure)
+ (replace 'build
+ (lambda _
+ (invoke "make")
+ #t))
+ (replace 'install
+ (lambda _
+ (invoke "make" "install")
+ #t))
+ (replace 'check
+ (lambda _
+ (invoke "make" "tests")
+ #t)))))
+ (synopsis "Timed references for imperative state")
+ (description "Timed references for imperative state. This module provides
+an alternative type for references (or mutable cells) supporting undo/redo
+operations. In particular, an abstract notion of time is used to capture the
+state of the references at any given point, so that it can be restored. Note
+that usual reference operations only have a constant time / memory overhead
+(compared to those of the standard library).
+
+Moreover, we provide an alternative implementation based on the references
+of the standard library (Pervasives module). However, it is less efficient
+than the first one.")
+ (license license:expat)))
+
(define-public ocaml-biniou
(package
(name "ocaml-biniou")
--
2.20.1