Elixir has code generation built into the language in the form of macros. Elixir supports incremental builds as well. Also, if you do want to pull in a file to generate code, macros can be used for that and you can signal to the elixir compiler that you’re doing so, so that it knows to recompile when that file changes. Pipes (|>) are used for fluid API’s in elixir, but you likely won’t need them if you want to build a DSL.
Dart probably has stricter typing than Elixir. You can use Dialyzer in elixir, but it uses success typing.
