Github user jorgebay commented on a diff in the pull request:
https://github.com/apache/tinkerpop/pull/712#discussion_r140818845
--- Diff: gremlin-dotnet/src/Gremlin.Net/Process/Traversal/Bindings.cs ---
@@ -29,14 +32,42 @@ namespace Gremlin.Net.Process.Traversal
public class Bindings
{
/// <summary>
+ /// Gets an instance of the <see cref="Bindings" /> class.
+ /// </summary>
+ public static Bindings Instance { get; } = new Bindings();
+
+ private static readonly ThreadLocal<Dictionary<object, string>>
BoundVariableByValue =
+ new ThreadLocal<Dictionary<object, string>>();
+
+ /// <summary>
/// Binds the variable to the specified value.
/// </summary>
/// <param name="variable">The variable to bind.</param>
/// <param name="value">The value to which the variable should be
bound.</param>
/// <returns>The bound value.</returns>
- public Binding Of(string variable, object value)
+ public TV Of<TV>(string variable, TV value)
+ {
+ var dict = BoundVariableByValue.Value;
+ if (dict == null)
+ {
+ dict = new Dictionary<object, string>();
+ BoundVariableByValue.Value = dict;
+ }
+ dict[value] = variable;
+ return value;
+ }
+
+ internal static string GetBoundVariable<TV>(TV value)
+ {
+ var dict = BoundVariableByValue.Value;
+ if (dict == null)
+ return null;
+ return !dict.ContainsKey(value) ? null : dict[value];
--- End diff --
Use `Dictionary{K, V}.TryGetValue()` to save one operation.
---
