get_role helper to get access to a different role of the same agent

[maurerle]

I'd like to have a feature like this to directly call a method of a given role from a role which extends the behavior of a different role.

We could instead change this to return the result of the function call directly, which would make adding params a little weirder though.

No tests yet, will be added once the idea is discussed :)

What do you think? @rcschrg

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 89.23%. Comparing base (5c68841) to head (d84f8dc).

Additional details and impacted files

@@               Coverage Diff               @@
##           development     #163      +/-   ##
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+ Coverage        89.20%   89.23%   +0.02%     
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  Files               22       22              
  Lines             2502     2507       +5     
===============================================
+ Hits              2232     2237       +5     
  Misses             270      270              

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[rcschrg]

Hey @maurerle,

What would be the use case? I don't like this style. Further, does it work without having the role object? You would need to provide the self-object, right?

I prefer the possibility of fetching the whole role as an object instead. This would feel more natural.

[maurerle]

Yes you are right! I improved it to work correctly and return the first role implementing the expected class and added a test case.

The idea is to make it possible for roles of the same agent to interact with each other, without replacing two roles with a unified role (which would reduce the benefit of being able to use multiple roles in one agent)