typetools / typetools/checker-framework
Initialization Checker: warn on illegal casts
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- Dominant language
- Java
- Stars
- 1.1k
- Forks
- 440
- Avg merge
- 1d 12h
- Merged PRs (30d)
- 134
Description
If a user's program contains @UnknownInitialization(B.class) C myvar;, then the Initialization Checker should issue a warning if there is nothing in the intersection of B and C (e.g., if B and C are siblings).
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
Start by locating the Initialization Checker implementation and its tests, then trace how @UnknownInitialization annotations are handled for casts or variable declarations. Reproduce the B-and-C-siblings example and add coverage showing that an empty intersection produces a warning; the issue names no specific files or test entry points.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- java
- Domain
- compilers
- Issue type
- Feature
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 35/100