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Better handling of empty candidates in forward #36

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Comment on lines 253 to 254
elif len(candidates) == 0 and len(contexts) > 0:
candidates = [[""] for _ in contexts]
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Why did you add this elif clause? Isn't the else enough?

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@ClementRomac ClementRomac Mar 7, 2024

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Well not exactly. The elif authorizes candidates=[]. I guess I could merge it with the if above with an or operator:

if candidates is None or len(candidates) == 0:
    candidates = [[""] for _ in range(len(contexts))]
else:
    assert len(candidates) == len(contexts), "If candidates are provided, there should be one list of candidates per context."
    if any([len(_c) == 0 for _c in candidates]):
        candidates = [[""] if len(_c) == 0 else _c for _c in candidates]

@sadra-barikbin
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This line also seems unnecessary:

if len(_ids_tables[_i]) == 0: break

@ClementRomac
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This line also seems unnecessary:

if len(_ids_tables[_i]) == 0: break

Yes you're right. I'm doing a new commit without this line.

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A question on a break statement in HF_LLM::forward()
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