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Deal with case when inputs contains empty lists #4664

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Deal with case when inputs contains empty lists #4664

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7df2595
deal with empty inputs
ArpegorPSGH Sep 15, 2022
5a21bf0
removed most exceptions + update doc
ArpegorPSGH Sep 16, 2022
bbacd9b
Removed error raising
ArpegorPSGH Sep 19, 2022
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2 changes: 1 addition & 1 deletion docs/nodes/list_masks/mask_join.rst
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Original file line number Diff line number Diff line change
Expand Up @@ -42,7 +42,7 @@ In the N-Panel (and on the right-click menu) you can find:
Outputs
-------

* **Data:** Mixed data of the incoming data, the length of Outputs depends on the **Data True**, **Data False** and **Mask** list lengths.
* **Data:** Mixed data of the incoming data, the length of Outputs depends on the **Data True**, **Data False** and **Mask** list lengths. If, at the choice level, the node encounters true and false input lists simultaneously empty, the corresponding output is an empty list. If only one of the two is empty, then values chosen from the other by the mask are replaced by None.

Example
-------
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7 changes: 6 additions & 1 deletion nodes/list_masks/mask_join.py
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Expand Up @@ -80,7 +80,12 @@ def process(self):

def apply_choice_mask(self, mask, data_t, data_f):
out = []
param = list_match_func[self.list_match_global]([mask, data_t, data_f])
if len(data_t) == 0:
data_t = [None] * len(data_f)
elif len(data_f) == 0:
data_f = [None] * len(data_t)

param = list_match_func[self.list_match_global]([mask, data_t, data_f])
for m, t, f in zip(*param):
if m:
out.append(t)
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