Further speedup for large cached results

Author: scheinerman

Project.toml

@@ -1,6 +1,6 @@
 name = "SimpleGraphs"
 uuid = "55797a34-41de-5266-9ec1-32ac4eb504d3"
-version = "0.7.12"
+version = "0.7.13"
 
 [deps]
 AbstractLattices = "398f06c4-4d28-53ec-89ca-5b2656b7603d"

src/cache.jl

@@ -33,7 +33,7 @@ cache_check(G::SimpleGraph, item::Symbol)::Bool = G.cache_flag && haskey(G.cache
 **WARNING**: No check is done to see if this value is defined. Be
 sure to use `cache_check` first!
 """
-cache_recall(G::SimpleGraph, item::Symbol) = deepcopy(G.cache[item])
+cache_recall(G::SimpleGraph, item::Symbol) = G.cache[item]
 
 
 
@@ -43,7 +43,7 @@ the symbol (key) `item` in the cache for this graph.
 """
 function cache_save(G::SimpleGraph, item::Symbol, value)
     if G.cache_flag
-        G.cache[item] = deepcopy(value)
+        G.cache[item] = value
     end
     nothing
 end