Add top alias

Author: YingboMa

Project.toml

@@ -1,6 +1,6 @@
 name = "DataStructures"
 uuid = "864edb3b-99cc-5e75-8d2d-829cb0a9cfe8"
-version = "0.18.2"
+version = "0.18.3"
 
 [deps]
 Compat = "34da2185-b29b-5c13-b0c7-acf172513d20"

src/DataStructures.jl

@@ -25,7 +25,7 @@ module DataStructures
     export AbstractHeap, compare, extract_all!, extract_all_rev!
     export BinaryHeap, BinaryMinHeap, BinaryMaxHeap, nlargest, nsmallest
     export MutableBinaryHeap, MutableBinaryMinHeap, MutableBinaryMaxHeap
-    export heapify!, heapify, heappop!, heappush!, isheap
+    export heapify!, heapify, heappop!, heappush!, isheap, top
     export BinaryMinMaxHeap, popmin!, popmax!, popall!
 
     export Trie, subtrie, keys_with_prefix, partial_path
@@ -112,4 +112,5 @@ module DataStructures
     include("splay_tree.jl")
 
     include("deprecations.jl")
+    const top = first
 end