SciML / SciML/ComponentArrays.jl
Empty arrays as components
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- Dominant language
- Julia
- Stars
- 375
- Forks
- 42
- Avg merge
- 7h 25m
- Merged PRs (30d)
- 17
Description
I'd like to be able to use ComponentArrays with some fields containing empty data arrays. For example,
ComponentVector(a=Int[], b=1) and ComponentVector(a=[Int[]], b=1) both work fine. However,
ComponentVector(a=[(a1=Int[],)], b=1)
fails due to a zero step-size in a range used in the partition function in utils.jl
Is there a simple fix?
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start in utils.jl at the partition function and reproduce the failing ComponentVector(a=[(a1=Int[],)], b=1) example. Compare it with the two working empty-array examples, then verify that the nested empty-array case succeeds and add regression coverage if the repository's existing tests provide a suitable location.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- julia
- Domain
- data
- Issue type
- Bug
- Difficulty
- 3/5
- Estimated time
- 1-2 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 45/100