Github user FlorianHockmann commented on a diff in the pull request:
https://github.com/apache/tinkerpop/pull/792#discussion_r167843703
--- Diff: docs/src/reference/gremlin-variants.asciidoc ---
@@ -436,6 +438,22 @@ NOTE: Many of the TraversalStrategy classes in
Gremlin.Net are proxies to the re
JVM-based Gremlin traversal machine. As such, their `Apply(ITraversal)`
method does nothing. However, the strategy is
encoded in the Gremlin.Net bytecode and transmitted to the Gremlin
traversal machine for re-construction machine-side.
+=== The Lambda Solution
+
+Supporting link:https://en.wikipedia.org/wiki/Anonymous_function[anonymous
functions] across languages is difficult as
+most languages do not support lambda introspection and thus, code
analysis. While Gremlin.Net doesn't support C# lambdas, it
+is still able to represent lambdas in other languages. When the lambda is
represented in `Bytecode` its language is encoded
+such that the remote connection host can infer which translator and
ultimate execution engine to use.
+
+[source,csharp]
+----
+g.V().Out().Map<int>(Lambda.Groovy("it.get().value('name').length()")).Sum<int>().ToList();
<1>
--- End diff --
I don't think that we need curly brackets here. It also looks like this for
Gremlin-Python in the docs: `map(lambda: ("it.get().value('name').length()",
"gremlin-groovy"))`
---
