jameysharp requested cfallin for a review on PR #5233.
jameysharp opened PR #5233 from isle-fix-iflet
to main
:
The
is_root
flag totranslate_pattern
just determines whether therule_term
argument is used, which begs a larger cleanup. But that cleanup is less clear ifis_root
is set anywhere aside from the call incollect_rules
. So I wanted to get confirmation that this particular use of that flag is incorrect first.These two arguments (
is_root
andrule_term
) are used to prevent expansion of a term as an internal extractor ("macro") if:
- that term is also an internal constructor
- and it's the root term on the left-hand side of the current rule
- and the pattern we're currently translating has no parents.
I'm not sure what it should mean to use the term you're currently defining as the root pattern on the left-hand side of an if-let in the same rule, but I don't think it should have this particular special treatment.
<!--
Please ensure that the following steps are all taken care of before submitting
the PR.
[ ] This has been discussed in issue #..., or if not, please tell us why
here.[ ] A short description of what this does, why it is needed; if the
description becomes long, the matter should probably be discussed in an issue
first.[ ] This PR contains test cases, if meaningful.
- [ ] A reviewer from the core maintainer team has been assigned for this PR.
If you don't know who could review this, please indicate so. The list of
suggested reviewers on the right can help you.Please ensure all communication adheres to the code of conduct.
-->
cfallin submitted PR review.
jameysharp merged PR #5233.
Last updated: Nov 22 2024 at 16:03 UTC