refactoring: early return 'if else' syntax -> 'if' syntax

[marload]

I think 'if syntax' is better than 'if else syntax' in the early return pattern.
Thanks You!

[tomhennigan]

Thanks for the patch! Code readability is really important and we really appreciate you taking the time to help us improve it.

For these specific cases we don't have a well established style guide saying whether if return else return is preferable vs. if return; return so I would be hesitant about applying this consistently in Sonnet.

However I think in this case you have identified a case where we can avoid repeating ourselves which is (in my experience) nearly always a good thing. PTAL at the suggested edit and see if you agree!

[tomhennigan]

So it seems to me we have a pattern of :

if A:
  return B + (C * D)
else:
  return B + D

I think perhaps in this case, if we want to avoid the extra else perhaps we should extract more of the common part of the two expressions (e.g. the if A block should just scale the thing we add to B.

if A:
  D = C * D
return B + D

Concretely in this case it would look like the following (I think we cannot use *= because this is not supported on tf.Variable):

b = self.b
if multiplier is not None:
  b = b * multiplier
return inputs + b

[marload]

I agree. Thanks You!

[tomhennigan]

Sounds good, please feel free to push a new commit with these changes so we can review and get them merged 😄