rust-lang / rust-lang/rustc-dev-guide
Describe query recovery
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Description
The section on incremental compilation mentions 're-running' a query when one of its inputs is red. We should describe this process ("recovery") in detail. In particular, we should note that this is currently only possible when the query ID can be mapped to a DefPathHash (this is the case for CrateNum, LocalDefId, and DefId).
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First steps
- Read the whole issue, then the project's contributing guide.
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- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Find the incremental compilation section that mentions “re-running” a query when an input is red. Read the surrounding explanation, then document query recovery, including that it currently works only when the query ID maps to a DefPathHash, as with CrateNum, LocalDefId, and DefId. Done means the recovery process and this limitation are clearly described.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- rust
- Domain
- compilers, documentation
- Issue type
- Documentation
- Difficulty
- 2/5
- Estimated time
- 1-3 hours
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 45/100