Add filter+map to collect code action

[riiswa]

Is your feature request related to a problem? Please describe.

The following code which contains a filter followed in map (the reciprocal is also possible) can be optimized with the collect method:

List(1, 2, 3, 4).filter(_ % 2 == 0).map(_ * 2)

Describe the solution you'd like

Propose to the user the following code:

List(1, 2, 3, 4).collect { case x if x%2 == 0 => x * 2 }

Describe alternatives you've considered

.

Additional contex

No response

Search terms

code action, map, filter, collect, optimisation

[tgodzik]

Thanks for reporting! That looks like a great Idea!

[scarf005]

i'm interested in implementing this feature; could anyone help me with pointers on where to look for?