perf(language_server): avoid Mutex in ServerLinter
#15516
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Pull Request Overview
This pull request converts the Tool trait and its implementations from async to synchronous, removing unnecessary async/await overhead from methods that don't perform actual async operations.
Key changes:
- Removed
asynckeyword from allTooltrait method signatures - Updated
ServerLinterandServerFormatterimplementations to be synchronous - Changed
IsolatedLintHandlerfromArc<Mutex<IsolatedLintHandler>>to plainIsolatedLintHandler - Removed
tokio::sync::Muteximport and all.awaitcalls in method invocations
Reviewed Changes
Copilot reviewed 5 out of 5 changed files in this pull request and generated 1 comment.
Show a summary per file
| File | Description |
|---|---|
crates/oxc_language_server/src/tool.rs |
Removed async from all trait method signatures (handle_configuration_change, handle_watched_file_change, execute_command, get_code_actions_or_commands, run_diagnostic methods) |
crates/oxc_language_server/src/linter/server_linter.rs |
Updated implementation to be synchronous; changed isolated_linter from Arc<Mutex<>> to plain type; removed tokio::sync::Mutex import |
crates/oxc_language_server/src/formatter/server_formatter.rs |
Updated implementation methods to be synchronous (handle_configuration_change, handle_watched_file_change) |
crates/oxc_language_server/src/worker.rs |
Removed .await calls when invoking trait methods on server_linter and server_formatter |
crates/oxc_language_server/src/linter/tester.rs |
Removed tokio runtime wrapping and .await calls in test code |
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camc314
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Nov 10, 2025
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# Oxlint ### 🚀 Features - c199e38 linter: Implement config for all tsgolint rules supporting options (#15659) (camchenry) - 7598b3e linter: Allow configuring tsgolint rules (#15286) (camchenry) - e77f2ce vscode: Support `oxlint --lsp` (#15680) (Sysix) - e01c551 oxlint: Add `--lsp` flag to run the language server (#15611) (Sysix) - ac5c2ab lsp/fmt: Support ignore files & patterns (#15647) (Sysix) - e50a9bf linter: Add unicorn/prefer-response-static-json rule (#15692) (Mikhail Baev) - f5d9abb oxlint: Add enabled? column to --rules cli output (#15213) (Wren) - 6b5205c linter/plugins: Implement deprecated `SourceCode#getJSDocComment` method (#15653) (overlookmotel) - 5eccff1 linter/plugins: Implement deprecated `SourceCode` tokens methods (#15645) (overlookmotel) - 4c62ffa language_server: Add `run_server` helper for CLI tools (#15609) (Sysix) - 0d52a5e linter/plugins: Implement `Context#parserOptions` getter (#15632) (overlookmotel) - 287a538 linter/plugins: Implement `Context#get*` deprecated methods (#15606) (overlookmotel) - 84de1ca oxlint,oxfmt: Allow comments and also commas for vscode-json-ls (#15612) (leaysgur) - e763919 linter: Add test to enforce schema documentation for rules with configuration options (#15234) (Connor Shea) - 6cd0b5f linter/no-callback-in-promise: Add support for `timeoutsErr` option (#15507) (Li Wei) ### 🐛 Bug Fixes - 1decd57 linter/no-empty-named-blocks: Only search within node for comma token (#15751) (camc314) - 17c3d6d linter: Improve docs, diagnostic message, and implementation of typescript/consistent-indexed-object-style rule. (#15750) (connorshea) - 78a6df2 linter/no-empty-named-blocks: Skip comments when searching for token (#15735) (camc314) - 042befd linter/require-await: Skip comments when searching for token (#15734) (camc314) - 7a78220 linter/no-async-await: Skip comments when searching for token (#15733) (camc314) - 23b9ad1 linter/consistent-type-specifier-style: Skip comments when searching for token (#15732) (camc314) - 440a977 ast: Include rest properties when using `get_binding_identifiers` (#15710) (camc314) - 516d14e linter/no-namespace: Skip comments when searching for token (#15716) (camc314) - b5aaace linter/prefer-namespace-keyword: Skip comments when searching for token (#15715) (camc314) - 4eb9fa6 editor: Execute `oxc.path.server` in win32 with shell (#14203) (Sysix) - 9f991a4 linter: Reverse extends overrides priority (#14939) (Peter Wagenet) - 7c4a916 linter: Restores `oxlint --rules -f=json` functionality. (#15689) (Wren) - 24d00f4 linter/plugins: Add types for suggested fixes (#15636) (overlookmotel) - 257360f linter/plugins: Fill in TS type def for `RuleMeta` (#15629) (overlookmotel) - 81e179c linter: Allow file extensions without a dot in react/jsx-filename-extension rule (#15574) (Connor Shea) - 7a0e931 linter: Update the unicorn/prefer-add-event-listener rule with new JavaScript APIs (#15581) (connorshea) - bb5f8ca oxlint: Fix type annotation for big-endian (#15561) (Sysix) ### ⚡ Performance - e2a0997 linter/plugins: Recycle empty visitor object in ESLint compat mode (#15693) (overlookmotel) - 7528db4 language_server: Pass file content as a referenced `String` (#15568) (Sysix) - 54061e9 linter/plugins: Avoid implicit boolean coercion in `initLines` (#15641) (overlookmotel) - ccfd935 language_server: Avoid `Mutex` in `ServerLinter` (#15516) (Sysix) ### 📚 Documentation - 3ab750a linter: Clarify react-in-jsx-scope rule docs. (#15749) (connorshea) - a5feebc linter: `oxlint-disable` not `eslint-disable` (#15672) (overlookmotel) - 3d15805 linter: Reformat doc comments (#15670) (overlookmotel) - 16fcba6 linter: Remove "experimental" from description of stable features (#15669) (overlookmotel) - e62fd98 linter: Correct comment on what `EnablePlugins` does (#15668) (overlookmotel) - a25d31e linter: Fix grammar (#15666) (overlookmotel) - f5f452f linter: Add missing `perf` category (#15667) (overlookmotel) - 2c58952 linter: Add config docs for no-restricted-globals rule. (#15662) (connorshea) - a210b12 linter/plugins: Improve JSDoc comment for `RuleOptionsSchema` (#15642) (overlookmotel) - 3aabfac linter/plugins: Alter comments on `FILE_CONTEXT` used in ESLint-compat `Context` shim (#15605) (overlookmotel) - fd58aea linter: Fix a typo in the docs for react/no-is-mounted. (#15575) (Connor Shea) # Oxfmt ### 🚀 Features - 84de1ca oxlint,oxfmt: Allow comments and also commas for vscode-json-ls (#15612) (leaysgur) - 99823ad oxfmt: Print nothing for default(write) mode (#15583) (leaysgur) - 25a0163 formatter/sort_imports: Sort imports by `Array<Array<string>>` groups (#15578) (leaysgur) ### 🐛 Bug Fixes - bf20cf5 formatter: `CRLF` issue in the member chain (#15764) (Dunqing) - 5d688a0 formatter: Measuring multiline text in `fits_text` is incorrect (#15762) (Dunqing) - e306958 formatter: Regression case for test call (#15760) (Dunqing) - c42d983 formatter: Re-fix all cases that fail after `AstNode::Argument` was removed (#15676) (Dunqing) ### ⚡ Performance - d99a83f oxfmt: Use simdutf8 based read_to_string (#15614) (leaysgur) - 128e186 formatter/sort_imports: Precompute import metadata (#15580) (leaysgur) - cd31cc1 formatter/sort_imports: Use `Vec::with_capacity` for `next_elements` (#15579) (leaysgur) ### 📚 Documentation - 3d15805 linter: Reformat doc comments (#15670) (overlookmotel) Co-authored-by: Boshen <1430279+Boshen@users.noreply.github.com>
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