add DataStructures dep

shashi · shashi · commit 84784ff63185 · 2020-06-11T02:27:45.000-04:00
diff --git a/Project.toml b/Project.toml
@@ -6,6 +6,7 @@ version = "0.3.3"
 [deps]
 AbstractAlgebra = "c3fe647b-3220-5bb0-a1ea-a7954cac585d"
 Combinatorics = "861a8166-3701-5b0c-9a16-15d98fcdc6aa"
+DataStructures = "864edb3b-99cc-5e75-8d2d-829cb0a9cfe8"
 NaNMath = "77ba4419-2d1f-58cd-9bb1-8ffee604a2e3"
 SpecialFunctions = "276daf66-3868-5448-9aa4-cd146d93841b"
 TimerOutputs = "a759f4b9-e2f1-59dc-863e-4aeb61b1ea8f"
diff --git a/src/SymbolicUtils.jl b/src/SymbolicUtils.jl
@@ -46,6 +46,7 @@ include("rule_dsl.jl")
 
 import AbstractAlgebra.Generic: MPoly, PolynomialRing, ZZ, exponent_vector
 using AbstractAlgebra: ismonomial
+using DataStructures
 include("abstractalgebra.jl")
 
 export simplify, substitute
diff --git a/src/abstractalgebra.jl b/src/abstractalgebra.jl
@@ -1,5 +1,3 @@
-using DataStructures
-
 # Polynomial Normal Form
 
 """
