fix: avoid O(N^2) rendering of high-volume diagnostics (#9748) by IWANABETHATGUY · Pull Request #9749 · rolldown/rolldown

IWANABETHATGUY · 2026-06-15T04:05:32Z

Problem

Emitting a high volume of warnings in one large module made the build appear to hang. Rendering was O(N^2) for two independent reasons, both paid once per diagnostic:

The ariadne Source (its rope + full line index) was rebuilt for the whole file on every diagnostic.
is_context_too_long built a whole-file ropey::Rope on every call, even though only the ~300 chars around the span matter.

With tens of thousands of warnings pointing into the same file, this quadratic work is what actually stalled the build.

Fix

Add Diagnostic::render_batch, which builds the per-source ariadne Source cache and a per-source LineTable once and shares them across all diagnostics. Line lookup is O(log lines) per diagnostic; the UTF-16 column is read by scanning only the matched line.
Replace the per-call ropey::Rope in is_context_too_long with direct string slicing of the prefix/postfix around the span, removing the ropey dependency entirely.
Dispatch warning callbacks sequentially in both the binding (handle_warnings) and the watcher (emit_warnings), awaiting each before the next. A handler may throw from onwarn/onLog to abort the build, so calls must stop at the first failure without racing later in-flight callbacks. The expensive part of [Bug]: Build deadlocks (promise never resolves) when emitting a very high volume of warnings #9748 was the per-warning re-render, not the JS round-trip, so this does not reintroduce the hang.

Residual cost (documented, not a regression)

ariadne still prints the entire labelled line for every diagnostic, so N diagnostics all landing on one very long line (e.g. a minified bundle) cost O(N * line_len) inside ariadne itself. That is bounded by the same per-line cost and is unrelated to the cross-diagnostic O(N^2) blow-up this PR removes.

Tests

delivers every warning when a build emits a high volume of them — 20k EVAL warnings complete quickly and every warning is delivered exactly once.
throwing from a warning handler aborts before invoking later handlers — guards the sequential-dispatch / throw-to-abort contract.
A LineTable unit test validates line/column/UTF-16 offset math against an independent linear reference across multi-byte, astral, and trailing-newline edge cases.

Note

Will consolidate the existing byte locator in #9762

IWANABETHATGUY · 2026-06-15T04:05:45Z

fix: avoid O(N^2) rendering of high-volume diagnostics (#9748) #9749 👈 (View in Graphite)
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commit: 3d19ba2

IWANABETHATGUY · 2026-06-16T07:35:21Z

This has been verified to solve the issue #9748 (comment)

Copilot

Pull request overview

This PR addresses #9748 by eliminating quadratic-time diagnostic rendering when many warnings reference the same large source, primarily by batching rendering work per source and removing whole-file rope construction from context-length checks.

Changes:

Add Diagnostic::render_batch plus a per-source LineTable cache to share ariadne Source/line-index work across many diagnostics.
Replace ropey-based whole-file processing in is_context_too_long with direct string slicing and drop the ropey dependency.
Add high-volume warning regression tests and update warning emission paths to use the batch renderer.

Reviewed changes

Copilot reviewed 8 out of 9 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
packages/rolldown/tests/behaviors/many-warnings.test.ts	Adds regression tests for high-volume warning delivery and abort-on-throw behavior.
crates/rolldown_watcher/src/watch_task.rs	Uses batched diagnostic rendering to avoid per-warning per-file ariadne rebuilds in watcher warning emission.
crates/rolldown_error/src/utils/is_context_too_long.rs	Removes per-call `ropey::Rope` construction by slicing the relevant source prefix/postfix directly.
crates/rolldown_error/src/lib.rs	Re-exports new diagnostic rendering/location types for downstream use.
crates/rolldown_error/src/build_diagnostic/diagnostic.rs	Introduces `render_batch`, cached ariadne source rendering, and `LineTable` + tests for UTF-16 location math.
crates/rolldown_error/Cargo.toml	Removes `ropey` dependency from `rolldown_error`.
crates/rolldown_binding/src/utils/mod.rs	Switches binding warning logging to batched rendering to avoid O(N²) re-rendering.
Cargo.toml	Removes workspace-level `ropey` dependency entry.
Cargo.lock	Removes `ropey` from the lockfile dependency graph.

codspeed-hq · 2026-06-16T07:40:32Z

Merging this PR will not alter performance

✅ 4 untouched benchmarks
⏩ 10 skipped benchmarks¹

_{Comparing 06-15-fix_9748 (39478eb) with main (eb2dc1f)}

10 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. ↩

IWANABETHATGUY · 2026-06-16T07:41:53Z

@codspeedbot explain why this is faster

Emitting many warnings was O(N^2): for every diagnostic rolldown re-scanned the source from offset 0 to locate its span, rebuilt the ariadne `Source` (line index) for the whole file, and `is_context_too_long` built a whole-file rope -- all repeated per warning. With tens of thousands of warnings in one large module this made the build appear to hang (#9748). Share the per-source work across all diagnostics instead: - add `Diagnostic::render_batch`, which builds one line table and one ariadne source cache per file and reuses them for every diagnostic (O(N log N)); - map a byte offset to line/column via a binary-searched line table rather than scanning from the start of the file; - slice the `&str` directly in `is_context_too_long` instead of building a ropey rope just to inspect ~300 chars around the span. Route the warning emitters in the napi binding and the watcher through the batch API; warning emission also keeps the bounded-concurrency napi pipelining. Diagnostic output is byte-for-byte unchanged (full `test:main` snapshot suite passes). Measured in release: 20k warnings ~17.9s -> ~0.2s, 5k ~0.9s -> ~0.09s. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

Address review feedback on the high-volume diagnostics fix: - Dispatch warning callbacks sequentially in both the binding and the watcher instead of pipelining with bounded concurrency. A handler may `throw` from onwarn/onLog to abort the build, so calls must stop at the first failure without racing later in-flight callbacks. The per-warning re-render was the actual O(N^2) cost, not the JS round-trip, so awaiting one call at a time does not reintroduce the hang. - Make the binding and watcher dispatch paths consistent (both ordered). - Drop the oversold "O(N log N)" wording: the cross-diagnostic blow-up is removed, but a single very long line still costs O(N * line_len) inside ariadne, which is documented explicitly. - Revert the utf16-deficit column optimization back to a simple linear within-line scan, bounded by that same per-line ariadne cost. - Add a regression test asserting a throwing handler aborts before later handlers run, plus a LineTable unit test against an independent reference. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

Trim the fixture list from seven cases to three, each annotated with the path it exercises (empty/single-entry table + clamp, multi-line binary-search lookup, astral+accent cumulative utf16 table). The dropped cases duplicated those paths. The independent reference oracle and the full char-boundary sweep are unchanged. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

Add try-finally so the bundle is closed even when onwarn throws, avoiding potential native resource leaks across tests. Mirrors the pattern in other rejection-path tests (e.g. dev-mode-validation.test.ts). Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

…9762) Stacked on #9749. Follow-up requested in review: the previous commit added a private `LineTable` to map a diagnostic span's byte offset to `(line, utf-16 column, utf-16 position)`. That duplicated the existing `ByteLocator` in this crate, which already builds the per-line byte-offset index for the reverse (line/column -> byte) lookup. This PR: - extends `ByteLocator` with `locate_utf16` -- a binary search over the line starts plus a parallel utf-16 line-start table; - uses it from `Diagnostic::render_batch` and removes `LineTable`; - adds a unit test covering the forward lookup for ASCII and surrogate-pair sources. Behavior is unchanged: the full `test:main` suite passes with no snapshot changes, and `cargo test -p rolldown_error locator` passes.

@shulaoda

## [1.1.2] - 2026-06-18 ### 📝 Notable tsconfig behavior changes These ship via the `oxc_resolver` 11.21.3 bump (#9841) and affect `resolve.tsconfigPaths` (Vite 8 resolves through oxc-resolver): - **Honor explicit non-TS extensions in `include`** (oxc-project/oxc-resolver#1213). `compilerOptions.paths` now resolve for importers whose extension is explicitly listed in a tsconfig's `include` (e.g. `src/**/*.vue`, `src/**/*.svelte`). Previously oxc-resolver filtered importers by extension before evaluating the `include` globs, so a `.vue`/`.svelte` file listed in `include` never matched its project and its `paths` were skipped. This unblocks the default create-vite Vue + TS layout (a solution-style root plus a referenced `tsconfig.app.json` that declares `paths` and `include: ["src/**/*.ts", "src/**/*.vue"]`). Matches vue-tsc and svelte-check, which register these extensions via TypeScript's `extraFileExtensions`. - **No fallback to the outermost tsconfig in auto-discovery** (oxc-project/oxc-resolver#1220). Auto-discovery no longer attaches the topmost ancestor `tsconfig.json` to a file that no project actually owns (via `files` / `include` / project references). Previously such a file inherited the outermost ancestor's `paths` / `baseUrl`, leaking aliases into files that project does not own. oxc-resolver now returns no config in that case, matching tsserver / typescript-go, which route such files to an inferred project with no aliases. ### 🚀 Features - add option named for invalid return type errors for more places (#9846) by @shulaoda - add option names for invalid return type errors (#9821) by @sapphi-red - transform: infer decorator strictNullChecks from tsconfig (#9590) by @kylecannon - expose React Compiler options for rolldown and Vite users (#9801) by @Boshen - tracing: gate chrome-json trace layer behind `chrome-tracing` feature (#9773) by @hyf0 - dev: align test-dev-server with Vite dev server (#9668) by @h-a-n-a ### 🐛 Bug Fixes - plugin_timings: point doc link to existing checks reference page (#9837) by @hyf0 - generator: correct contradictory panic message in cjs cross-chunk symbol lookup (#9836) by @hyf0 - esm: preserve with clause on export * from external (#9796) by @hyf0 - Make external_import_binding_merger deterministic (#9755) by @naruaway - surface invalid `manualCodeSplitting` group `test` regex as an error (#9792) by @shulaoda - avoid panic on `output.file` without a file name (#9789) by @shulaoda - avoid O(N^2) rendering of high-volume diagnostics (#9748) (#9749) by @IWANABETHATGUY - avoid panic on JSON numbers outside f64 range (#9788) by @shulaoda - deps: bump mimalloc-safe to 0.1.63 to fix worker_threads segfault (#9785) by @shulaoda - cache ESM evaluation errors (#9784) by @sapphi-red - wrap node require helper in pure IIFE (#9783) by @kb019 - lazy-barrel: load locally-used imports on a re-exported record (#9757) by @shulaoda - avoid dangling wrapped-ESM init call across chunks (#9502) (#9717) by @IWANABETHATGUY - dev: detect same-second rewrites in CI poll watcher (#9736) by @h-a-n-a - dev: force rebuild after HMR errors (#9686) by @h-a-n-a - dev: print build errors on browser refresh after a failed build (#9652) by @h-a-n-a ### 🚜 Refactor - single-source the chunk $N symbol-naming algorithm (#9831) by @Dunqing - simplify common_dir helper (#9857) by @IWANABETHATGUY - drop commondir crate in favor of in-house helper (#9849) by @Boshen - binding: extract helpers from normalize_binding_options (#9842) by @Boshen - move rolldown_filter_analyzer to tasks and scope oxc cfg feature (#9839) by @Boshen - options: merge manualCodeSplitting into codeSplitting object form (#9805) by @IWANABETHATGUY - options: support codeSplitting object form in CodeSplittingMode (#9804) by @IWANABETHATGUY - diagnostic: reuse ByteLocator for per-source line lookup (#9762) by @IWANABETHATGUY - remove redundant Arc around tracing spans (#9778) by @camc314 - remove unnecessary `Arc` around sourcemap sender (#9777) by @camc314 - rolldown_plugin_vite_wasm_fallback: remove the plugin (#9775) by @sapphi-red - binding: remove infer-able `napi(ts_type)` (#9737) by @sapphi-red - remove preprocessor span dedup (#9734) by @hyf0 - identify AST nodes by NodeId instead of Span/Address (#9609) by @IWANABETHATGUY ### 📚 Documentation - tsconfig: align auto-discovery docs with oxc-resolver behavior (#9845) by @shulaoda - relocate meta/design to internal-docs, split design from implementation (#9826) by @h-a-n-a - meta: add options normalization design doc (#9818) by @IWANABETHATGUY - document why the napi tracing feature is enabled (#9766) by @Boshen - dev: move test-dev-server test guidance into the testing docs (#9809) by @h-a-n-a ### ⚡ Performance - drop unused regex unicode property tables from the binding (#9848) by @Boshen - drop urlencoding crate in favor of percent-encoding (#9851) by @Boshen - drop owo-colors supports-colors feature in vite reporter (#9824) by @Boshen - skip enum member value extraction for non-TypeScript modules (#9840) by @shulaoda - rolldown: use unstable sort for itertools sorted_by at unique-key sites (#9827) by @Boshen - cheaper deterministic ordering in external import binding merger (#9810) by @IWANABETHATGUY - disable idna's ICU backend by pinning idna_adapter to 1.0.0 (-129 KB) (#9811) by @Boshen - size: use unstable sort where stability is unneeded (#9803) by @Boshen - remove num-format dependency from vite reporter (#9795) by @Boshen - reduce js callback error size (#9776) by @Boshen - rolldown_error: remove Debug supertrait from BuildEvent (#9798) by @Boshen - reduce plugin hook order code size (#9761) by @Boshen - deps: disable `infer` default features to reduce binary size (#9765) by @Boshen - reduce pluginable monomorphization size (#9771) by @Boshen - avoid rebuilding replace plugin values (#9764) by @Boshen - defer link-stage-output drop to rayon workers after output is produced (#9733) by @Brooooooklyn - tree-shaking: hoist already-included guard to call sites in inclusion DFS (#9738) by @Brooooooklyn - renamer: dedup before allocating the owned name in add_symbol_in_root_scope (#9740) by @Brooooooklyn ### 🧪 Testing - allocs: track allocation counts for rolldown_sourcemap (#9835) by @hyf0 - bench: add CodSpeed micro-benchmarks for rolldown_sourcemap (#9834) by @hyf0 - add cjs named export mutation test (#9823) by @sapphi-red - dev: restore shared-page reliability conventions in AGENTS.md (#9786) by @h-a-n-a - dev: add `AGENTS.md` test guidance for agents (#9763) by @h-a-n-a - dev: split out initial-build-error into its own playground (#9772) by @h-a-n-a - dev: align e2e suite with Vite and parallelize playgrounds (#9759) by @h-a-n-a - remove unnecessary module namespace object JSON serializations in tests (#9725) by @sapphi-red - use `assert.deepStrictEqual` instead of `assert.deepEqual` by using `assert/strict` instead of `assert` (#9724) by @sapphi-red - hmr: add test case for #5301 (#5302) by @sapphi-red - dev: add tests for dev-engine principles (#9720) by @h-a-n-a - dev: align dev-engine test harness with Vite (#9684) by @h-a-n-a ### ⚙️ Miscellaneous Tasks - deps: update napi to 3.9.3 (#9862) by @shulaoda - deps: update oxc to 0.137.0 (#9856) by @Boshen - re-enable default lld linker on x86_64-unknown-linux-gnu (#9855) by @Boshen - deps: bump vite-plus to 0.2.1 (#9850) by @Boshen - skills: translate _config.json when encoding rolldown REPL links (#9847) by @IWANABETHATGUY - deps: update oxc_resolver and oxc_resolver_napi to 11.21.3 (#9841) by @Boshen - pin vite-plus (vp) CLI to 0.1.24 in setup-vp (#9830) by @Boshen - add crate/package-level CODEOWNERS (#9819) by @IWANABETHATGUY - drop unused derive_more display feature from rolldown_plugin (#9820) by @Boshen - remove auto-assign PR workflow (#9807) by @IWANABETHATGUY - deps: update rollup submodule for tests to v4.62.0 (#9780) by @rolldown-guard[bot] - deps: update esbuild for tests to 0.28.1 (#9779) by @rolldown-guard[bot] - deps: update test262 submodule for tests (#9781) by @rolldown-guard[bot] - deps: update oxc to 0.136.0 (#9770) by @Boshen - add pull request template (#9756) by @sapphi-red - clarify `rolldown_plugin_vite_*` is compatible for the same minor (#9774) by @sapphi-red - deps: update github actions (#9745) by @renovate[bot] - deps: update rust crates (#9747) by @renovate[bot] - deps: update napi to v3.9.2 (#9744) by @renovate[bot] - deps: update npm packages (#9746) by @renovate[bot] - deps: update @napi-rs/cli and emnapi deps (#9741) by @Brooooooklyn - generator: fix `vp fmt` on Windows (#9727) by @sapphi-red - ban importing from `assert` and recommend `assert/strict` (#9726) by @sapphi-red ### ❤️ New Contributors * @naruaway made their first contribution in [#9755](#9755) * @kb019 made their first contribution in [#9783](#9783) Co-authored-by: shulaoda <165626830+shulaoda@users.noreply.github.com>

## [1.0.16] - 2026-06-18 ### 🚀 Features - add option named for invalid return type errors for more places (rolldown#9846) by `@shulaoda` - add option names for invalid return type errors (rolldown#9821) by `@sapphi-red` - transform: infer decorator strictNullChecks from tsconfig (rolldown#9590) by `@kylecannon` - expose React Compiler options for rolldown and Vite users (rolldown#9801) by `@Boshen` - tracing: gate chrome-json trace layer behind `chrome-tracing` feature (rolldown#9773) by `@hyf0` - dev: align test-dev-server with Vite dev server (rolldown#9668) by `@h-a-n-a` ### 🐛 Bug Fixes - plugin_timings: point doc link to existing checks reference page (rolldown#9837) by `@hyf0` - generator: correct contradictory panic message in cjs cross-chunk symbol lookup (rolldown#9836) by `@hyf0` - esm: preserve with clause on export * from external (rolldown#9796) by `@hyf0` - Make external_import_binding_merger deterministic (rolldown#9755) by `@naruaway` - surface invalid `manualCodeSplitting` group `test` regex as an error (rolldown#9792) by `@shulaoda` - avoid panic on `output.file` without a file name (rolldown#9789) by `@shulaoda` - avoid O(N^2) rendering of high-volume diagnostics (rolldown#9748) (rolldown#9749) by `@IWANABETHATGUY` - avoid panic on JSON numbers outside f64 range (rolldown#9788) by `@shulaoda` - deps: bump mimalloc-safe to 0.1.63 to fix worker_threads segfault (rolldown#9785) by `@shulaoda` - cache ESM evaluation errors (rolldown#9784) by `@sapphi-red` - wrap node require helper in pure IIFE (rolldown#9783) by `@kb019` - lazy-barrel: load locally-used imports on a re-exported record (rolldown#9757) by `@shulaoda` - avoid dangling wrapped-ESM init call across chunks (rolldown#9502) (rolldown#9717) by `@IWANABETHATGUY` - dev: detect same-second rewrites in CI poll watcher (rolldown#9736) by `@h-a-n-a` - dev: force rebuild after HMR errors (rolldown#9686) by `@h-a-n-a` - dev: print build errors on browser refresh after a failed build (rolldown#9652) by `@h-a-n-a` ### 🚜 Refactor - single-source the chunk $N symbol-naming algorithm (rolldown#9831) by `@Dunqing` - simplify common_dir helper (rolldown#9857) by `@IWANABETHATGUY` - drop commondir crate in favor of in-house helper (rolldown#9849) by `@Boshen` - binding: extract helpers from normalize_binding_options (rolldown#9842) by `@Boshen` - move rolldown_filter_analyzer to tasks and scope oxc cfg feature (rolldown#9839) by `@Boshen` - options: merge manualCodeSplitting into codeSplitting object form (rolldown#9805) by `@IWANABETHATGUY` - options: support codeSplitting object form in CodeSplittingMode (rolldown#9804) by `@IWANABETHATGUY` - diagnostic: reuse ByteLocator for per-source line lookup (rolldown#9762) by `@IWANABETHATGUY` - remove redundant Arc around tracing spans (rolldown#9778) by `@camc314` - remove unnecessary `Arc` around sourcemap sender (rolldown#9777) by `@camc314` - rolldown_plugin_vite_wasm_fallback: remove the plugin (rolldown#9775) by `@sapphi-red` - binding: remove infer-able `napi(ts_type)` (rolldown#9737) by `@sapphi-red` - remove preprocessor span dedup (rolldown#9734) by `@hyf0` - identify AST nodes by NodeId instead of Span/Address (rolldown#9609) by `@IWANABETHATGUY` ### 📚 Documentation - tsconfig: align auto-discovery docs with oxc-resolver behavior (rolldown#9845) by `@shulaoda` - relocate meta/design to internal-docs, split design from implementation (rolldown#9826) by `@h-a-n-a` - meta: add options normalization design doc (rolldown#9818) by `@IWANABETHATGUY` - document why the napi tracing feature is enabled (rolldown#9766) by `@Boshen` - dev: move test-dev-server test guidance into the testing docs (rolldown#9809) by `@h-a-n-a` ### ⚡ Performance - drop unused regex unicode property tables from the binding (rolldown#9848) by `@Boshen` - drop urlencoding crate in favor of percent-encoding (rolldown#9851) by `@Boshen` - drop owo-colors supports-colors feature in vite reporter (rolldown#9824) by `@Boshen` - skip enum member value extraction for non-TypeScript modules (rolldown#9840) by `@shulaoda` - rolldown: use unstable sort for itertools sorted_by at unique-key sites (rolldown#9827) by `@Boshen` - cheaper deterministic ordering in external import binding merger (rolldown#9810) by `@IWANABETHATGUY` - disable idna's ICU backend by pinning idna_adapter to 1.0.0 (-129 KB) (rolldown#9811) by `@Boshen` - size: use unstable sort where stability is unneeded (rolldown#9803) by `@Boshen` - remove num-format dependency from vite reporter (rolldown#9795) by `@Boshen` - reduce js callback error size (rolldown#9776) by `@Boshen` - rolldown_error: remove Debug supertrait from BuildEvent (rolldown#9798) by `@Boshen` - reduce plugin hook order code size (rolldown#9761) by `@Boshen` - deps: disable `infer` default features to reduce binary size (rolldown#9765) by `@Boshen` - reduce pluginable monomorphization size (rolldown#9771) by `@Boshen` - avoid rebuilding replace plugin values (rolldown#9764) by `@Boshen` - defer link-stage-output drop to rayon workers after output is produced (rolldown#9733) by `@Brooooooklyn` - tree-shaking: hoist already-included guard to call sites in inclusion DFS (rolldown#9738) by `@Brooooooklyn` - renamer: dedup before allocating the owned name in add_symbol_in_root_scope (rolldown#9740) by `@Brooooooklyn` ### 🧪 Testing - allocs: track allocation counts for rolldown_sourcemap (rolldown#9835) by `@hyf0` - bench: add CodSpeed micro-benchmarks for rolldown_sourcemap (rolldown#9834) by `@hyf0` - add cjs named export mutation test (rolldown#9823) by `@sapphi-red` - dev: restore shared-page reliability conventions in AGENTS.md (rolldown#9786) by `@h-a-n-a` - dev: add `AGENTS.md` test guidance for agents (rolldown#9763) by `@h-a-n-a` - dev: split out initial-build-error into its own playground (rolldown#9772) by `@h-a-n-a` - dev: align e2e suite with Vite and parallelize playgrounds (rolldown#9759) by `@h-a-n-a` - remove unnecessary module namespace object JSON serializations in tests (rolldown#9725) by `@sapphi-red` - use `assert.deepStrictEqual` instead of `assert.deepEqual` by using `assert/strict` instead of `assert` (rolldown#9724) by `@sapphi-red` - hmr: add test case for rolldown#5301 (rolldown#5302) by `@sapphi-red` - dev: add tests for dev-engine principles (rolldown#9720) by `@h-a-n-a` - dev: align dev-engine test harness with Vite (rolldown#9684) by `@h-a-n-a` ### ⚙️ Miscellaneous Tasks - add rollipop-integration skill by `@leegeunhyeok` - update esbuild snap diff metrics by `@leegeunhyeok` - sync upstream rolldown v1.1.2 by `@leegeunhyeok` - deps: update napi to 3.9.3 (rolldown#9862) by `@shulaoda` - deps: update oxc to 0.137.0 (rolldown#9856) by `@Boshen` - re-enable default lld linker on x86_64-unknown-linux-gnu (rolldown#9855) by `@Boshen` - deps: bump vite-plus to 0.2.1 (rolldown#9850) by `@Boshen` - skills: translate _config.json when encoding rolldown REPL links (rolldown#9847) by `@IWANABETHATGUY` - deps: update oxc_resolver and oxc_resolver_napi to 11.21.3 (rolldown#9841) by `@Boshen` - pin vite-plus (vp) CLI to 0.1.24 in setup-vp (rolldown#9830) by `@Boshen` - add crate/package-level CODEOWNERS (rolldown#9819) by `@IWANABETHATGUY` - drop unused derive_more display feature from rolldown_plugin (rolldown#9820) by `@Boshen` - remove auto-assign PR workflow (rolldown#9807) by `@IWANABETHATGUY` - deps: update rollup submodule for tests to v4.62.0 (rolldown#9780) by `@rolldown-guard[bot]` - deps: update esbuild for tests to 0.28.1 (rolldown#9779) by `@rolldown-guard[bot]` - deps: update test262 submodule for tests (rolldown#9781) by `@rolldown-guard[bot]` - deps: update oxc to 0.136.0 (rolldown#9770) by `@Boshen` - add pull request template (rolldown#9756) by `@sapphi-red` - clarify `rolldown_plugin_vite_*` is compatible for the same minor (rolldown#9774) by `@sapphi-red` - deps: update github actions (rolldown#9745) by `@renovate[bot]` - deps: update rust crates (rolldown#9747) by `@renovate[bot]` - deps: update napi to v3.9.2 (rolldown#9744) by `@renovate[bot]` - deps: update npm packages (rolldown#9746) by `@renovate[bot]` - deps: update @napi-rs/cli and emnapi deps (rolldown#9741) by `@Brooooooklyn` - generator: fix `vp fmt` on Windows (rolldown#9727) by `@sapphi-red` - ban importing from `assert` and recommend `assert/strict` (rolldown#9726) by `@sapphi-red` Co-authored-by: leegeunhyeok <26512984+leegeunhyeok@users.noreply.github.com>

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IWANABETHATGUY mentioned this pull request Jun 15, 2026

refactor(diagnostic): reuse ByteLocator for per-source line lookup #9762

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IWANABETHATGUY force-pushed the 06-15-fix_9748 branch from 65906c1 to 3d19ba2 Compare June 15, 2026 13:15

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[Bug]: Build deadlocks (promise never resolves) when emitting a very high volume of warnings #9748

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shulaoda mentioned this pull request Jun 15, 2026

Support patch releases for older minor versions #9758

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IWANABETHATGUY changed the title ~~fix: 9748~~ fix: avoid O(N^2) rendering of high-volume diagnostics (#9748) Jun 16, 2026

IWANABETHATGUY force-pushed the 06-15-fix_9748 branch from 9e137c5 to 7e8b4a0 Compare June 16, 2026 07:33

IWANABETHATGUY marked this pull request as ready for review June 16, 2026 07:34

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IWANABETHATGUY requested review from h-a-n-a, hyf0 and shulaoda June 16, 2026 07:52

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IWANABETHATGUY and others added 6 commits June 16, 2026 17:45

fix: 9748

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[autofix.ci] apply automated fixes

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IWANABETHATGUY force-pushed the 06-15-fix_9748 branch from 14ded43 to 39478eb Compare June 16, 2026 09:45

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IWANABETHATGUY merged commit 697a7c4 into main Jun 16, 2026
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IWANABETHATGUY deleted the 06-15-fix_9748 branch June 16, 2026 09:50

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This was referenced Jun 18, 2026

release: v1.1.2 #9860

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release: v1.1.2 #9863

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rollipop-bot Bot mentioned this pull request Jun 18, 2026

release: v1.0.16 rollipop-dev/rolldown#31

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shulaoda mentioned this pull request Jun 19, 2026

Clean up stale remote branches #9888

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fix: avoid O(N^2) rendering of high-volume diagnostics (#9748)#9749

fix: avoid O(N^2) rendering of high-volume diagnostics (#9748)#9749
IWANABETHATGUY merged 6 commits into
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Merging this PR will not alter performance

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