Array(T | Array[T]) not well handled
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- Dominant language
- Ruby
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- Avg merge
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Description
Given a variable typed as smth or collection of smth, Array(a) does not spread correctly:
# a: Symbol | Array[Symbol]
Array(a).each do |el|
# el is typed as Symbol | Array[Symbol], instead of SymbolContributor 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
No source file or test is named. Start by reproducing the Array(a) example with a typed as Symbol | Array[Symbol], then trace the type inference for the resulting collection and add a regression test; done means the block variable is inferred as Symbol.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- ruby
- Domain
- devtools
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 35/100