gnu: Add julia-datastructures.

* gnu/packages/julia-xyz.scm (julia-datastructures-0.17.2): New variable.

gnu/packages/julia-xyz.scm

@@ -584,3 +584,46 @@ are similar to containers in base Julia.  However, during iteration the
 Ordered* containers return items in the order in which they were added to the
 collection.")
     (license license:expat)))
+
+(define-public julia-datastructures
+  (package
+    (name "julia-datastructures")
+    (version "0.17.2")
+    (source
+     (origin
+       (method git-fetch)
+       (uri (git-reference
+             (url "https://github.com/JuliaCollections/DataStructures.jl")
+             (commit (string-append "v" version))))
+       (file-name "DataStructures")
+       (sha256
+        (base32 "0l742ac5n2g2nnrbxvkqz1wkj739rmflzd8zyz934dc6a5pwnzrw"))))
+    (propagated-inputs
+     `(("julia-orderedcollections" ,julia-orderedcollections)))
+    (build-system julia-build-system)
+    (home-page "https://github.com/JuliaCollections/DataStructures.jl")
+    (synopsis "Julia implementation of Data structures")
+    (description "This package implements a variety of data structures,
+including:
+
+@enumerate
+@item Deque (implemented with an unrolled linked list)
+@item CircularBuffer
+@item CircularDeque
+@item Stack
+@item Queue
+@item Accumulators and Counters (i.e. Multisets / Bags)
+@item Disjoint Sets
+@item Binary Heap
+@item Mutable Binary Heap
+@item Ordered Dicts and Sets
+@item Dictionaries with Defaults
+@item Trie
+@item Linked List and Mutable Linked List
+@item Sorted Dict, Sorted Multi-Dict and Sorted Set
+@item DataStructures.IntSet
+@item Priority Queue
+@item Fenwick Tree
+@item SparseIntSet
+@end enumerate")
+    (license license:expat)))