fix(react/display-name): handle merged type+value context symbols by camc314 · Pull Request #19608 · oxc-project/oxc

camc314 · 2026-02-21T16:14:44Z

Summary

scan all symbol redeclarations in react/display-name when detecting components/context objects
keep existing displayName assignment checks, but avoid missing value declarations hidden behind TS type redeclarations
add a regression test for interface + const sharing the same context name

Fixes #19607

camc314 · 2026-02-21T16:14:57Z

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Copilot

Pull request overview

This PR fixes a TypeScript namespace-merging edge case in the react/display-name lint rule so that checkContextObjects: true still detects missing displayName on createContext(...) when a same-named TS interface/type exists.

Changes:

Update react/display-name to scan all symbol redeclarations (not just the primary declaration) when identifying React components/context objects.
Add a regression test covering interface + const createContext(...) sharing the same identifier.
Update the snapshot to include the newly reported diagnostic for the regression case.

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 1 comment.

File	Description
crates/oxc_linter/src/rules/react/display_name.rs	Scans symbol redeclarations to find runtime value declarations hidden behind TS type redeclarations; adds a regression test.
crates/oxc_linter/src/snapshots/react_display_name.snap	Snapshot update reflecting the new diagnostic for the added regression case.

crates/oxc_linter/src/rules/react/display_name.rs

codspeed-hq · 2026-02-21T16:20:59Z

Merging this PR will not alter performance

✅ 47 untouched benchmarks
⏩ 3 skipped benchmarks¹

_{Comparing c/02-21-fix_react_display-name_handle_merged_type_value_context_symbols (a0fb52d) with main (79fe3b4)²}

3 benchmarks were skipped, so the baseline results were used instead. If they were deleted from the codebase, click here and archive them to remove them from the performance reports. ↩
No successful run was found on c/02-21-feat_semantic_introduce_symbol_declarations_method (79fe3b4) during the generation of this report, so main (79fe3b4) was used instead as the comparison base. There might be some changes unrelated to this pull request in this report. ↩

camc314 · 2026-02-25T12:02:17Z

Merge activity

Feb 25, 12:02 PM UTC: The merge label '0-merge' was detected. This PR will be added to the Graphite merge queue once it meets the requirements.
Feb 25, 12:15 PM UTC: camc314 added this pull request to the Graphite merge queue.
Feb 25, 12:20 PM UTC: Merged by the Graphite merge queue.

…9608) ## Summary - scan all symbol redeclarations in `react/display-name` when detecting components/context objects - keep existing displayName assignment checks, but avoid missing value declarations hidden behind TS type redeclarations - add a regression test for `interface` + `const` sharing the same context name Fixes #19607

# Oxlint ### 🚀 Features - 2e0e1d0 linter/no-unused-vars: Add experimental fix mode controls (off|suggestion|fix) (#19774) (camc314) - f34f6fa linter: Introduce typeCheck config option (#19764) (camc314) - 694be7d linter: Introduce typeAware as config options (#19614) (camc314) - 655c38f semantic: Add "did you mean?" suggestions to undefined name errors (#19102) (copilot-swe-agent) - e97a57e linter/id-length: Use serde to deserialize rule options (#19636) (camc314) - c4a3677 parser: Report error for initializer in ambient context (#19187) (camc314) - 346045a linter/id-length: Add `checkGeneric` option (#19634) (camc314) ### 🐛 Bug Fixes - 1b7a937 linter: Correct double-comparisons fix with swapped operands (#19846) (camc314) - c308857 linter/consistent_type_imports: Add missing help and notes to diagnostics (#19827) (Daniel Osmond) - 7682e5a linter/plugins: Decode escapes in identifier tokens (#19838) (overlookmotel) - f368fcd linter/consistent_type_assertions: Add missing with_help and with_note to diagnostics (#19826) (Daniel Osmond) - 04e6223 npm: Add `preferUnplugged` for Yarn PnP compatibility (#19829) (Boshen) - 86d5037 linter: Add help text to no-extend-native, no-useless-backreference (#19733) (Anthony Amaro) - 50e8eff linter: Add .with_help() to operator-assignment, no-nonoctal-decimal-escape (#19732) (Anthony Amaro) - 1417bdc linter/no-wrapper-object-types: Add help messages to missing diagnostics (#19771) (Daniel Osmond) - 0838477 linter/ban_ts_comment: Add help and notes to missing diagnostics (#19781) (Daniel Osmond) - e8c77cf linter/adjacent_overload_signatures: Add missing diagnostics (#19780) (Daniel Osmond) - 28834ac linter/ban_types: Add missing help and note to diagnostics (#19782) (Daniel Osmond) - fd938d3 linter/prefer-enum-initializers: Add help messages to missing diagnostics (#19772) (Daniel Osmond) - eb928ee linter/no-dynamic-delete: Add help messages to missing diagnostics (#19768) (Daniel Osmond) - a985666 linter/no-empty-interface: Add help messages to missing diagnostics (#19769) (Daniel Osmond) - 2dc0ceb linter/no-extra-non-null-assertion: Add help messages to missing diagnostics (#19770) (Daniel Osmond) - 95d5d66 linter/no-dupe-keys: Handle `__proto__` proto setters in (#19762) (camc314) - 24ff0db linter/exhaustive-deps: False positive for member expressions in IIFEs (#19751) (Dennis Chen) - 7243a58 linter/no-use-before-define: Honor `ignoreTypeReferences` when value and type name collisions (#19747) (Dimava) - eefd818 linter/explicit-module-boundary-types: Add help messages to missing diagnostics (#19736) (Daniel Osmond) - 0440e9a linter: Add help text to no_control_regex, no_fallthrough, no_param_reassign (#19655) (Anthony Amaro) - e84cb2f react/display-name: Handle merged type+value context symbols (#19608) (camc314) - ce7e253 linter/prefer-object-from-entries: Require exact path match in unicorn helper (#19687) (camc314) - f5694ce estree/tokens: Reverse field order of `regex` object in tokens (#19679) (overlookmotel) - b2b7a55 estree/tokens: Generate tokens for files with BOM (#19535) (overlookmotel) - 0722721 linter/jsx-curly-brace-presence: False positive with prop & mixed quotes (#19674) (camc314) - 3496acd linter: Enhance diagnostic help messages for eslint rules (#19653) (Anthony Amaro) - e384e94 linter: Enhance help diagnostic messages for more eslint rules (#19658) (Anthony Amaro) - a4d5b34 linter: Avoid non-promise catch false positives (#19574) (camc314) - 5706f38 linter: `unicorn/no-array-callback-reference` skip `Effect.*` array-like methods name. (#19633) (Said Atrahouch) ### ⚡ Performance - 05ccf9f linter/plugins: Transfer tokens via raw transfer (#19893) (overlookmotel) - 4b0611a estree/tokens: Introduce `ESTreeTokenConfig` trait (#19842) (overlookmotel) - ec88f6a estree/tokens: Serialize tokens while visiting AST (#19726) (overlookmotel) - d4dcf26 linter/plugins: Remove `typescript` from bundle (#19531) (overlookmotel) - 6a6513c linter/plugins: Use Oxc tokens in plugins (#19498) (camc314) ### 📚 Documentation - d86f59e linter: Improve docs for no-useless-concat, mark as pending fixer. (#19859) (connorshea) - caa091d linter/plugins: Correct doc comments for `initTokens` (#19530) (overlookmotel) - 2fa936f README.md: Map npm package links to npmx.dev (#19666) (Boshen) - dc0ff73 linter/no-useless-constructor: Warn for parameter properties as well (#19638) (Ole Asteo) # Oxfmt ### 🚀 Features - 5141bc2 formatter: Support trailing ignore comments (#19304) (Andreas Lubbe) - 4888a99 oxfmt/lsp: Support other schemes beside `file://` and `untitled://` (#19872) (Sysix) - 14a0181 oxfmt: Support `graphql()` variant for gql-in-js (#19703) (leaysgur) - ca68ea6 oxfmt: Support gql-in-js substitution (#19670) (leaysgur) - 035933c formatter,oxfmt: Support js-in-vue (partially) (#19514) (leaysgur) - 9e11dc6 parser,estree,coverage: Collect tokens in parser and convert to ESTree format (#19497) (camc314) ### 🐛 Bug Fixes - 8e3842d oxfmt: Avoid embedded TSFN crash by returning errors as data (take2) (#19806) (Yuji Sugiura) - 04e6223 npm: Add `preferUnplugged` for Yarn PnP compatibility (#19829) (Boshen) - e540585 oxfmt: Support tailwind sort for CSS/LESS/SCSS (#19803) (leaysgur) - 93bb861 formatter: Trim trailing whitespace before breaking line (#19740) (leaysgur) - b85f97b formatter: Drop blank line between terminal call and first chain member (#19659) (Dunqing) ### ⚡ Performance - b3b2d30 parser: Introduce `ParserConfig` (#19637) (overlookmotel) ### 📚 Documentation - 2fa936f README.md: Map npm package links to npmx.dev (#19666) (Boshen) Co-authored-by: Boshen <1430279+Boshen@users.noreply.github.com>

github-actions bot added A-linter Area - Linter C-bug Category - Bug labels Feb 21, 2026

camc314 marked this pull request as ready for review February 21, 2026 16:15

Copilot AI review requested due to automatic review settings February 21, 2026 16:15

Copilot started reviewing on behalf of camc314 February 21, 2026 16:15 View session

camc314 marked this pull request as draft February 21, 2026 16:18

Copilot AI reviewed Feb 21, 2026

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crates/oxc_linter/src/rules/react/display_name.rs Outdated Show resolved Hide resolved

github-actions bot added the A-semantic Area - Semantic label Feb 21, 2026

camc314 marked this pull request as ready for review February 21, 2026 16:27

camc314 requested a review from Dunqing as a code owner February 21, 2026 16:27

camc314 changed the base branch from main to graphite-base/19608 February 21, 2026 16:29

camc314 force-pushed the c/02-21-fix_react_display-name_handle_merged_type_value_context_symbols branch from a0fb52d to d576e0c Compare February 21, 2026 16:29

camc314 changed the base branch from graphite-base/19608 to c/02-21-feat_semantic_introduce_symbol_declarations_method February 21, 2026 16:29

camc314 mentioned this pull request Feb 21, 2026

feat(semantic): introduce symbol_declarations method #19609

Merged

camc314 self-assigned this Feb 21, 2026

This was referenced Feb 21, 2026

fix(react/exhaustive-deps): normalize .current callback deps #19610

Merged

fix(linter): detect missing displayName when TS interface shares name with createContext (#19607) #19639

Closed

camc314 added the 0-merge Merge with Graphite Merge Queue label Feb 25, 2026

graphite-app bot changed the base branch from c/02-21-feat_semantic_introduce_symbol_declarations_method to graphite-base/19608 February 25, 2026 12:03

graphite-app bot force-pushed the graphite-base/19608 branch from 0cba5a9 to 5937a32 Compare February 25, 2026 12:09

graphite-app bot force-pushed the c/02-21-fix_react_display-name_handle_merged_type_value_context_symbols branch from d576e0c to 3fbc2e2 Compare February 25, 2026 12:09

graphite-app bot changed the base branch from graphite-base/19608 to main February 25, 2026 12:10

graphite-app bot force-pushed the c/02-21-fix_react_display-name_handle_merged_type_value_context_symbols branch from 3fbc2e2 to 0794310 Compare February 25, 2026 12:10

graphite-app bot force-pushed the c/02-21-fix_react_display-name_handle_merged_type_value_context_symbols branch from 0794310 to e84cb2f Compare February 25, 2026 12:15

graphite-app bot merged commit e84cb2f into main Feb 25, 2026
21 checks passed

graphite-app bot deleted the c/02-21-fix_react_display-name_handle_merged_type_value_context_symbols branch February 25, 2026 12:20

graphite-app bot removed the 0-merge Merge with Graphite Merge Queue label Feb 25, 2026

Boshen mentioned this pull request Mar 2, 2026

release(apps): oxlint v1.51.0 && oxfmt v0.36.0 #19912

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fix(react/display-name): handle merged type+value context symbols#19608

fix(react/display-name): handle merged type+value context symbols#19608
graphite-app[bot] merged 1 commit intomainfrom
c/02-21-fix_react_display-name_handle_merged_type_value_context_symbols

camc314 commented Feb 21, 2026 •

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Merging this PR will not alter performance

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camc314 commented Feb 21, 2026 •

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