neo4j/graph: Enlarge in advance when loading from JSON.

Signed-off-by: Jean-Christophe Beaupré <jcbrinfo@users.noreply.github.com>

diff --git a/lib/neo4j/graph/json_graph_store.nit b/lib/neo4j/graph/json_graph_store.nit
index 20736ad..9c97216 100644 (file)
--- a/lib/neo4j/graph/json_graph_store.nit
+++ b/lib/neo4j/graph/json_graph_store.nit
@@ -168,6 +168,8 @@ redef class NeoGraph
        # For the expected format, see `JsonGraphStore`.
        fun load_json_object(o: JsonObject) do
                var json_nodes = o["nodes"].as(JsonArray)
+               var nodes = self.nodes
+               nodes.enlarge(nodes.length)
                for json_node in json_nodes do
                        assert json_node isa JsonObject
                        var node = new NeoNode.from_json_object(json_node)
@@ -175,6 +177,8 @@ redef class NeoGraph
                end
 
                var json_edges = o["edges"].as(JsonArray)
+               var edges = self.edges
+               if edges isa AbstractArray[NeoEdge] then edges.enlarge(edges.length)
                for json_edge in json_edges do
                        assert json_edge isa JsonObject
                        var from = nodes[nodes.id_from_jsonable(json_edge["from"])]