psalm: Method return type not being inferred for templated class
I don’t know how best to describe this issue, but I think the repro will make it fairly clear:
https://psalm.dev/r/c8661b5bb2
Psalm is not inferring that $optional->get() returns string, even though it has correctly inferred that $optional is Optional<string>.
Actual message
INFO: MissingReturnType - 29:10 - Method expandOptions does not have a return type, expecting Collection<mixed>
Expected message
INFO: MissingReturnType - 29:10 - Method expandOptions does not have a return type, expecting Collection<string>
About this issue
- Original URL
- State: closed
- Created 5 years ago
- Comments: 16 (5 by maintainers)
Commits related to this issue
- Ref #1600 - partial fix inferring param types when none is available — committed to vimeo/psalm by muglug 5 years ago
This now works: https://psalm.dev/r/df23fd1a67