JuliaArrays / JuliaArrays/BlockArrays.jl
`Broadcast.broadcast_shape` for BlockedUnitRanges fails inference
Open
Nobody has claimed this yet.
- Dominant language
- Julia
- Stars
- 254
- Forks
- 39
- PR merge metrics
- No merged PRs in 30d
Description
MWE:
using BlockArrays
shape1 = (BlockArrays._BlockedUnitRange((2,)),);
shape2 = (BlockArrays._BlockedUnitRange((2,)),);
Base.Broadcast._bcs(shape1, shape2)
# @code_warntype Base.Broadcast._bcs1(shape1[1], shape2[1]) # lower level, but internals
@code_warntype Base.Broadcast.broadcast_shape(shape1, shape2)
Contributor guide
No contributing guide indexed for this repository
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 with the MWE in the issue and inspect Julia's Base.Broadcast.broadcast_shape, _bcs, and _bcs1 behavior for BlockedUnitRanges. Confirm the type-inference failure with @code_warntype, then determine what behavior and inferred result should be preserved when the issue is fixed.
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