JuliaDiff / JuliaDiff/ChainRulesCore.jl
Immutable setindex on Tangent
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- Dominant language
- Julia
- Stars
- 267
- Forks
- 66
- PR merge metrics
- No merged PRs in 30d
Description
Should Base.setindex be defined on Tangent? It could be handy to construct specific tangents, for example, by modifying the output of rand_tangent.
Base has setindex (no bang) for tuples and named tuples. Arguably for the latter it could be a Base.setproperty behaving similarly but it's uncommon enough to keep a single function.
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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
Locate the Tangent and rand_tangent definitions, then inspect how immutable setindex is provided for tuples and named tuples. Determine the intended setindex behavior for constructing a modified Tangent and add focused tests showing the resulting tangent values; done means the behavior is covered and consistent with the existing immutable APIs.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- julia
- Domain
- backend
- Issue type
- Feature
- Difficulty
- 3/5
- Estimated time
- 1-2 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 35/100