Removing unnecessary list() for generators

[spaceby]

Can you add the following rules?

a.extend([i for i in range(10)]) to a.extend(i for i in range(10))
a.extend(list(range(10)) to a.extend(range(10)

' '.join([i for i in range(10)]) to ' '.join(i for i in range(10))
' '.join(list(range(10)) to ' '.join(range(10)

[1, *list(range(10))] to [1, *range(10)]

itertools.starmap(func, zip(range(5), range(5))) to map(func, range(5), range(5))

[charliermarsh]

Seems reasonable although the extend could be wrong if we don't know that a is a list; similarly, changing .join could be wrong if we don't know that the caller is a string. Just caveats.

[MichaReiser]

This seems similar to https://docs.astral.sh/ruff/rules/unnecessary-comprehension-any-all/ What's unclear to me is if this should be a new rule or if the existing rule should be changed to detect any unnecessary list generators.

[charliermarsh]

I'd say one rule, for built-in methods that consume generators.

[charliermarsh]

This can be merged into #3259.