leanprover-community / leanprover-community/iris-lean
Evaluate possibilities for expression quotation
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- Dominant language
- Lean
- Stars
- 218
- Forks
- 63
- Avg merge
- 1d 23h
- Merged PRs (30d)
- 22
Description
The tactic implementations need to destruct expressions (Expr), which is currently done by hand, i.e. using methods like isAppOf and getAppArgs in Iris/Std/Expr.lean. Using expression quotations would presumably simplify this process. One package to check out is quote4.
Contributor guide
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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 reading the hand-written expression destructuring in Iris/Std/Expr.lean, especially uses of isAppOf and getAppArgs. Then investigate Lean 4 expression quotations and the linked quote4 package. Done means documenting whether quotation can replace the current approach and outlining the viable direction for the tactic implementations.
Written by the indexing model from the issue text.
Assessment
- Domain
- compilers
- Issue type
- Refactor
- Difficulty
- 5/5
- Estimated time
- Over a week
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 25/100