JuliaArrays / JuliaArrays/StaticArrays.jl
Type stability of SVector / SMatrix
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- Dominant language
- Julia
- Stars
- 844
- Forks
- 159
- Avg merge
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- Merged PRs (30d)
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Description
From https://github.com/EnzymeAD/Enzyme.jl/issues/1805
@SVector([0.0, 0.0, 0.00]) / @SMatrix([1.0]) has a return type of Union{MVector{3, Float64}, SMatrix{3, 1, Float64, 3}, MMatrix{3, 1, Float64, 3}}
Contributor guide
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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 by reproducing the @SVector([0.0, 0.0, 0.00]) / @SMatrix([1.0]) expression and inspect how its return type is inferred. Trace the involved StaticArrays operations and compare the result with the expected stable type; done means the reported union no longer occurs for this case.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- julia
- Domain
- performance
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 35/100