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Fix starmap_indexed not passing index #690

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@Boudewijn26 Boudewijn26 commented Feb 16, 2023

This PR fixes starmap_indexed not actually passing the index to the function

This could be considered a breaking change, although I suspect the impact would be minor. Anyone currently using starmap_indexed must have noticed it's no different from starmap

@@ -65,7 +65,7 @@ def _identity(value: _T1, _: int) -> _T2:

return compose(
ops.zip_with_iterable(infinite()),
ops.starmap_indexed(_mapper_indexed),
ops.starmap(_mapper_indexed),
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This depended on the incorrect behavior of starmap_indexed. If it actually were to pass the index, it would pass it twice: once from zip_with_iterable(infinite()) and once from starmap_indexed

@@ -405,6 +405,211 @@ def mapper(x, y):
assert xs.subscriptions == [subscribe(200, 290)]
assert invoked[0] == 3

def test_starmap_with_index_throws(self):
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Tests derived from

def test_map_with_index_throws(self):
and adapted for starmap

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Coverage Status

Coverage: 93.425% (+0.03%) from 93.396% when pulling cab78b4 on Boudewijn26:fix/starmap_indexed into a10cc1c on ReactiveX:master.

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2 participants