Reduce lint hot-path overhead - #6826

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Brett-Best:codex/lint-hot-path-performance

Commits on Jul 24, 2026

Compare operands by token stream in identical_operands rule

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Cache allowedSymbolsAndAlphanumerics in NameConfiguration

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Read comment ranges from token trivia in comment rules

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Reduce per-rule-per-file overhead in the lint hot path

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Return nil from firstIndexAssumingSorted when no element matches

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Free the remaining lint-mode rules from SourceKit

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Run SwiftSyntax-mode custom rules without SourceKit

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Reduce per-file filesystem and gating overhead

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Avoid full-tree work in mark, file_length, and trailing_whitespace

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Extend only line comments over their newline in the bridged syntax map

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Cache comment byte ranges per file and compute them in one visitor pass

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Memoize chain suffixes in multiline_function_chains

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Run rules serially per file when many files are linted in parallel

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Skip rewriting in corrections when a file has no violations

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Resolve self-linting violations

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Extend line comments over CRLF and CR line endings in the bridged syntax map

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Lint the largest files first in parallel runs

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Add changelog entries

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Replace the per-file cache's concurrent queue with a lock

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Skip body-line analysis for bodies within the length threshold

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Speed up CommentLinesVisitor's per-token work

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Collect indentation_width's syntax data in a single walk

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Cache source lines in vertical_parameter_alignment

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Precompute inclusive_language term lists once per file

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Gate comment_spacing's regex behind a cheap pre-check

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Optimize colon, comma, closure_end_indentation, redundant_self

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Reduce per-rule violation post-processing in the lint loop

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Avoid recomputing the rule identifier in performLint

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Commits on Jul 25, 2026

Commits on Jul 26, 2026

Bound how deeply the parser may nest

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