Eclipse with Unity?

Hello every one! This may seem as a completely stupid question but is it possible to use Eclipse as the scripting language instead of C#. Me being on a robotics team have gotten use to eclipse’s flow and auto suggestions, I have looked on the asset store, and the plugins I have seen paper to be 1. expensive and 2.for making android games. Could I just import a c++ file from eclipse to replace the C# ones? I also would like the auto suggestions for the unity commands. Sorry for my stupid question I’m brand new.

Nope.