Enclose grouping parentheses with parens node
#222
Merged
Conversation
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Introduce a new kind `K"parens"` to represent grouping parentheses with a tree node of their own. This makes it simple for tooling to process and preserve parenthesized expressions without resorting to searching through the attached syntax trivia. An alternative considered here was to use `K"block"` with a single child which would avoid introducing an extra kind of node. But in that case we couldn't distinguish between a trivial block like `(a;)` vs bare parentheses `(a)`. It also makes implementing `peek_behind` more complicated.
This was referenced Mar 31, 2023
c42f
added a commit
to JuliaLang/julia
that referenced
this pull request
Oct 17, 2025
…x.jl#222) Introduce a new kind `K"parens"` to represent grouping parentheses with a tree node of their own. This makes it simple for tooling to process and preserve parenthesized expressions without resorting to searching through the attached syntax trivia. An alternative considered here was to use `K"block"` with a single child which would avoid introducing an extra kind of node. But in that case we couldn't distinguish between a trivial block like `(a;)` vs bare parentheses `(a)`. It also makes implementing `peek_behind` more complicated.
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
1 participant
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
Introduce a new kind
K"parens"to represent grouping parentheses with a tree node of their own. This makes it simple for tooling to process and preserve parenthesized expressions without resorting to searching through the attached syntax trivia.An alternative considered here was to use
K"block"with a single child which would avoid introducing an extra kind of node. But in that case we couldn't distinguish between a trivial block like(a;)vs bare parentheses(a). It also makes implementingpeek_behindmore complicated.Part of #88. Helps with #22 and #134