swiftlang / swiftlang/swift-java
Properties that rely on type inference are not exported into Java
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- Swift
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Description
Reproduction
I am certain Swift Java developers know about this limitation, but I don't see any issues mentioning type inference explicitly. As of 5764bc2a1b706056121109dc0ab14fd3d771cbc5 for the following code:
public class Foo {
public let a = 1
public let b: Int = 1
}
only the b property is exported; the property a that doesn't spell out the type explicitly is skipped and I also don't see any mentions of this in the logs of jextract.
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
Reproduce the provided Foo example with jextract and inspect how the two properties are handled during Java export. Trace the property-export path and its diagnostics, then verify that the inferred-type property is exported alongside the explicitly typed property.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- java, swift
- Domain
- tooling
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 38/100