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fix: make properly immutable #52

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Merged
second-ed merged 1 commit into from
Aug 3, 2026
Merged

fix: make properly immutable #52

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11 changes: 4 additions & 7 deletions src/danom/_stream.py
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Original file line number Diff line number Diff line change
Expand Up @@ -236,8 +236,7 @@ def two_div_value(x: float) -> float:

"""
plan = (*self.ops, (_MAP, partial(fn, *args, **kwargs)))
object.__setattr__(self, "ops", plan)
return self
return Stream(seq=self.seq, ops=plan)

def filter[**P](
self, fn: FilterFn | AsyncFilterFn, *args: P.args, **kwargs: P.kwargs
Expand All @@ -261,8 +260,7 @@ def filter[**P](

"""
plan = (*self.ops, (_FILTER, partial(fn, *args, **kwargs)))
object.__setattr__(self, "ops", plan)
return self
return Stream(seq=self.seq, ops=plan)

def tap[**P](self, fn: TapFn | AsyncTapFn, *args: P.args, **kwargs: P.kwargs) -> Stream[T]:
"""Tap the values to another process that returns None. Will return a new ``Stream`` with the modified sequence.
Expand Down Expand Up @@ -301,8 +299,7 @@ def tap[**P](self, fn: TapFn | AsyncTapFn, *args: P.args, **kwargs: P.kwargs) ->

"""
plan = (*self.ops, (_TAP, partial(fn, *args, **kwargs)))
object.__setattr__(self, "ops", plan)
return self
return Stream(seq=self.seq, ops=plan)

def partition(
self, fn: FilterFn, *, workers: int = 1, use_threads: bool = False
Expand Down Expand Up @@ -440,7 +437,7 @@ def collect(self) -> tuple[U, ...]:
stream.collect() == (1, 2, 3, 4)

"""
return tuple(_apply_fns(self.seq, self.ops))
return _apply_fns(self.seq, self.ops)

def par_collect(self, workers: int = 4, *, use_threads: bool = False) -> tuple[U, ...]:
"""Materialise the sequence from the ``Stream`` in parallel.
Expand Down