Escape 16-bit strings and object keys like 8-bit ones (console.log, bun:test, JS printer) by robobun · Pull Request #42320 · oven-sh/bun

robobun · 2026-09-11T11:44:50Z

Problem

console.log, Bun.inspect and bun:test write a 16-bit object key raw. console.log(JSON.parse('{"日本\\n[INFO] forged":1}')) prints a real line break, so untrusted JSON can forge a log line. An 8-bit key prints \n, as Node does. A snapshot with such a key can pass in a full run and fail under -t (Notes). Values differ too: a vertical tab prints as "\u000B" when 8-bit and "\u000b" when 16-bit.
Cause: print_string and write_property_key (src/jsc/ConsoleObject.rs) and the key printer at src/runtime/test_runner/pretty_format.rs:970 branch on is_16bit(). A fuzzer and a code read found this. No issue exists.

Fix

Both printers call one new function, bun_js_printer::write_json_string_encoded, for keys, values and [String: ...]. A snapshot, a toEqual diff, a toBe message and Bun.inspect print the same key text.
write_pre_quoted_string_inner escaped each half of a surrogate pair in UTF-16 input. It now reads a well-formed pair as one code point, as its UTF-8 path does.
Two output changes need a maintainer decision. bun build --target=browser|node prints an astral character in a string literal as-is (--target=bun is byte-identical). A stored snapshot changes if a 16-bit key has ", \, a control character, U+2028, U+2029, U+FEFF or a lone surrogate. Jest prints keys raw. bun:test has always escaped 8-bit keys. This PR extends that form (precedent: Fix 23382 (unicode object key printed as 'key" in snapshot instead of "key") #23390).
Verified: 14 new tests in inspect.test.js, one in bun-snapshots.test.ts, bundler_string.test.ts, transpiler.test.js. All fail on 1.4.3-canary.1. This PR includes Escape object keys the same way for Latin-1 and UTF-16 strings in bun:test and Bun.inspect #42299.

Background

JSC stores a string as Latin-1 bytes (8-bit) or UTF-16 code units (16-bit). JavaScript cannot see which.
ConsoleObject.rs prints console.log, Bun.inspect and the Received: value of toBe. pretty_format.rs is a fork that prints snapshots and toEqual diffs.
write_pre_quoted_string_inner (src/js_printer/lib.rs) is the shared JS/JSON string escaper. With ascii_only it escapes all non-ASCII. The bundler sets that for --target=bun only.

Notes

This PR and #42299. #42299 fixed the same key.is_16bit() branch of write_property_key, and its copy in pretty_format.rs, with format_json_string_utf8(&key.to_utf8(), ..). This PR fixed the branch in ConsoleObject.rs only, with a helper that also prints values. I built both and printed 20 keys with each (quotes, backslashes, C0 and C1 controls, DEL, U+2028, U+2029, U+FEFF, astral characters, lone and reversed surrogates). The two escapers agree on every key except one with a lone surrogate: to_utf8() replaces it with U+FFFD, this PR writes \uD800. pretty_format.rs cannot print \uD800 without the surrogate pair fix in this PR, so the two changes are one PR now. What moved here from #42299: the pretty_format.rs hunk, the test in bun-snapshots.test.ts (plus a lone surrogate key), its key cases for inspect.test.js, and the removal of index_of_any16.

If the snapshot change is not wanted, the carve-out is mechanical: drop the hunk in pretty_format.rs and the test in bun-snapshots.test.ts. The rest does not depend on them.

write_json_string_encoded takes an EncodedSlice and picks Encoding::Utf16, Utf8 or Latin1. It is in bun_js_printer next to write_json_string, because both printer crates already depend on that crate. The WrappedWriter of each printer has a one-line write_json_string that calls it and sets failed on a write error. The JSPrinter facade in ConsoleObject.rs (a runtime-encoding adapter) had one caller left, the Uint8Array as text arm of the error printer. That arm now calls the same helper, and the facade is gone.

The snapshot repro (fails on 1.4.3-canary.1, passes with this PR). keys.txt is UTF-8. Line 1 is café say "hi", line 2 is 日本, so the decoded file is a 16-bit string and so is each line cut from it.

import { test, expect } from "bun:test";
import { readFileSync } from "node:fs";
const line = readFileSync(import.meta.dir + "/keys.txt", "utf8").split("\n")[0];
const seen: Record<string, number> = {};
test("first", () => {
  seen[line] = 1; // used as a key first: JSC makes an 8-bit atom, and `line` is 8-bit from here on
  expect(Object.keys(seen)).toHaveLength(1);
});
test("second", () => {
  expect(Bun.inspect(line)).toContain("caf"); // printed first (when `first` did not run): `line` stays 16-bit
  expect({ [line]: 1 }).toMatchSnapshot();
});

bun test writes "café say \"hi\"": 1 and passes again. bun test -t second prints "café say "hi"": 1 and fails.

More examples of the old behavior (bun 1.4.3):

A path key: const p = path.win32.join("C:\\Users\\José", "new.js"); console.log({ [p]: p }) prints "C:\Users\José\new.js": "C:\\Users\\José\\new.js". The key has single backslashes, the value has doubled ones.
The same JS string changes its output within one program: const v = "日本,a\x1b[31m".split(",")[1]; Bun.inspect([v]) prints the escape for ESC with lowercase hex digits. After seen[v] = true it prints uppercase hex digits, because the property lookup swaps the 16-bit substring for an 8-bit atom. Whether an equal 8-bit atom exists depends on file order, on the thread (each Worker has its own atom table) and on GC.
String.prototype.toJSON = () => "x"; Bun.inspect(new String("😎")) prints "x", and a throwing toJSON makes Bun.inspect throw. An 8-bit new String("a") never calls toJSON.
URLSearchParams, FormData and Bun.CookieMap print their names through the same write_property_key, so they had the same raw 16-bit keys.

Other visible output changes:

A lone surrogate in a key prints as \uD800 in both printers. Before, both printed U+FFFD, so two different keys could print the same text.
Array wrapping. The old 16-bit path added the string length to the line length estimate twice (once in print_string, once in print_json), so an array of 16-bit strings wrapped about twice as early as the same array of 8-bit strings. Both now wrap at the same place. Arrays of CJK or emoji strings therefore get longer lines than before.
Bun.inspect of a 16-bit string now escapes U+2028, U+2029, U+FEFF and lone surrogates with uppercase hex ("\uD800", was "\ud800" from JSON.stringify; the separators and the BOM printed raw before). 8-bit strings cannot contain these, so there was no 8-bit behavior to match.
bun build / Bun.Transpiler: "👋" instead of "\uD83D\uDC4B" for targets other than bun. On bun 1.4.3 import t from "./t.txt" with 👋 in the file already bundles to "👋" for --target=browser (the UTF-8 path), while the literal "👋" bundles to "\uD83D\uDC4B" (the UTF-16 path). string/SurrogatePairs_* asserts that the two paths agree. The change busts content hashes once for chunks that hold an astral character in a string literal. With ascii_only, the combined code point goes to surrogate_pair_escape, which emits the same \uD83D\uDC4B as before, so --target=bun output and the runtime transpiler output (and its cache) do not change. Source map columns already count a code point above U+FFFF as two UTF-16 units (update_generated_line_and_column_slow).
%j still uses JSON.stringify on purpose and keeps its lowercase escapes.
A failed write in these paths now sets failed instead of .expect("unreachable").

Snapshot direction. Jest's pretty-format escapes only " and \ in keys, and Jest 29 and Vitest snapshots print keys raw. bun:test has JSON-escaped 8-bit keys since toMatchSnapshot() shipped (4792abd, 2023), and most keys are 8-bit. So 16-bit keys match Jest today only by accident. This PR keeps the 8-bit output and moves the less common 16-bit case to it. The other direction changes the stored snapshots of each user that has an 8-bit key with a backslash (for example a Windows path). Parity with Jest for keys is a separate question (#40656 is the open report for string values). With one escaper call for keys, a later change of direction is a change in one place.

History: keys always went through JSPrinter.formatJSONString until fd4a210 (2022, a non-ASCII fix for console.log). That commit added the 16-bit branch as a raw write. pretty_format is a fork of that formatter and kept the split. So the JSON escaper is the original behavior for a quoted key.

Order against open PRs:

Deduplicate bundler dispatch and output glue, the JS string escaper, and the exports-map retry #31998 folds the two copies of the escaper into bun_core::printer::write_pre_quoted_string_inner with the body of the js_printer copy. This PR gives both copies the same two hunks (bun_core::string::printer::write_pre_quoted_string has no UTF-16 caller today, the hunks keep the copies in sync). If Deduplicate bundler dispatch and output glue, the JS string escaper, and the exports-map retry #31998 lands first, this PR keeps the two hunks on that one function and drops the comment there that says a pair prints as \uD800\uDF34. If this PR lands first, Deduplicate bundler dispatch and output glue, the JS string escaper, and the exports-map retry #31998 takes the hunks with the body it copies.
printer: print ill-formed UTF-8 in 8-bit strings as U+FFFD instead of NUL #41789 changes the Encoding::Utf8 arm of the same match in write_pre_quoted_string_inner. This PR changes the Encoding::Utf16 arm. The second one to land rebases over a near hunk. Neither changes the other's output.
console: format boxed primitives and RegExp from their internal slot #36404 edits the two print_as(Tag::JSON, ..) lines of print_string that this PR deletes. After this PR it passes its inner string to writer.write_json_string(str.to_encoded_slice()).
console: print one array element per line unless entries are short primitives #37303 measures an array element with json_stringify for a 16-bit string and with the JSPrinter facade for an 8-bit one. After this PR it measures both with write_json_string_encoded and a counting writer.
Native OpenTelemetry tracing (Bun.otel) #39965 (src/telemetry/db.rs) and install: only replace or remove a package's own bins in the global bin dir #39745 (a Windows-only shim reader) add callers of index_of_any16. There is no textual conflict. After this PR they call index_of_any_t, which it wrapped.
encoding: materialize 8-bit strings from UTF-8 decode when every code point fits in Latin-1 #36615 changes which strings get 16-bit storage (UTF-8 decode of text in the Latin-1 range becomes 8-bit). After this PR the storage width does not change the output.
bun:test: print String objects with 16-bit storage correctly #42298 (bun:test: a String object with 16-bit storage prints wrong characters in diffs and snapshots #42296) fixes the String object arm of pretty_format.rs. It is a different hunk of that file.

Not in this PR:

String values in pretty_format.rs. It prints them raw in both widths, so the width does not change the output.
One shared write_property_key for both printers. The two copies differ in more than the escaper.
format_json_string_latin1 still has callers that pass UTF-8 bytes (init_command.rs, jsc_hooks.rs). That is a different defect.

Dead code that this PR removes: write_16_bit in both printers, the JSPrinter facade, and index_of_any16 (src/bun_core/string/immutable.rs). The console key printer was the last caller of index_of_any16 outside Windows-only code, and the mordant lint reports an unused public function. It was a one-line wrapper for index_of_any_t. The two Windows callers in src/runtime/cli/run_command.rs now call index_of_any_t. cargo check -p bun_runtime --target x86_64-pc-windows-msvc passes, and a local cargo dylint run reports nothing over the baseline.

Self-reviewed before opening, and again after the consolidation. The first review asked for the bundler output change stated up front, the note on #31998, and stronger tests (representation guards with toBeUTF16String(), a path-shaped key, a text and JSON import next to the string literal, adjacent lone surrogates, toJSON). It also asked to move the runtime-encoding adapter out of ConsoleObject.rs so that pretty_format.rs can call it. That is write_json_string_encoded. The second review raised the points above (the repros first, the Jest difference, the carve-out, the order against open PRs, the index_of_any16 callers in flight, the facade, one table of positions in inspect.test.js). All are in this PR.

Also ran on the consolidated branch: expect.test.js, test/js/bun/test/snapshot-tests/, test/js/web/console, test/js/bun/console, test/js/node/util/*inspect*, test/internal/source-lints, and the new tests under BUN_JSC_validateExceptionChecks=1. Two tests fail in those runs on a local debug ASAN build. error snapshots in snapshot.test.ts fails the same way on 1.4.3-canary.1: its stored snapshot has ANSI colors and a piped run has none. util-inspect-long-running.test.mjs hits the 5 s timeout: it calls the JS util.inspect, which this PR does not touch. The first version of this PR also ran es-decorators.test.ts, invalid-escape-sequences.test.ts, bundler_minify.test.ts and bundler_edgecase.test.ts on the same js_printer change.

Throughput: on a release build the old 16-bit path (JSON.stringify plus a transcode) formatted 2M CJK characters in about 12 ms. The per-character path that 16-bit strings now share with Latin-1 takes about 21 ms for 2M non-ASCII characters. Small strings skip a JS call and two allocations.

no test proof · iteration 2 · platform-specific test(s) that do not run on this machine, deferring to CI, which covers all platforms: test/js/bun/util/inspect.test.js

…S printer) console.log and Bun.inspect wrote a 16-bit object key with no escaping: a quote, a backslash and control characters reached the output as-is. 16-bit string values went through JSON.stringify (lowercase \u001b, toJSON called on String objects, line length counted twice) while 8-bit strings went through write_json_string (uppercase \u001B). Equal strings printed differently depending on their representation. Send both representations through write_json_string. For that, the UTF-16 path of write_pre_quoted_string reads a well-formed surrogate pair as one code point, as the UTF-8 path and esbuild do. A string literal with an astral character now prints like the same text from a text or JSON import: as-is for targets other than bun, and unchanged (\uD83D\uDE0E) for --target=bun.

robobun · 2026-09-11T11:45:01Z

^{Updated 3:16 AM PT - Sep 12th, 2026}

✅ @robobun, your commit d825f91946dc93247b7293c64b7a04e174f2089f passed in Build #114669! 🎉

🧪 To try this PR locally:

bunx bun-pr 42320

That installs a local version of the PR into your bun-42320 executable, so you can run:

bun-42320 --bun

robobun · 2026-09-11T11:46:25Z

Status

Reproduced on bun 1.4.3 (release build) with:

const s8 = "red\x0bgreen";
const s16 = Buffer.from(s8, "utf16le").toString("utf16le"); // same characters, 16-bit backing
console.log(s8 === s16);                        // true
console.log(Bun.inspect(s8), Bun.inspect(s16)); // "red\u000Bgreen" "red\u000bgreen"
console.log({ 'k"\x1b\\ 日本': 1 });             // the key prints with a bare quote, a raw ESC byte and one backslash
console.log(JSON.parse('{"日本\\n[INFO] forged":1}')); // the key prints a real line break

The bun:test printer (this PR now includes #42299):

import { test, expect } from "bun:test";
test("keys", () => {
  // The text k"a with 16-bit storage.
  const wide = new TextDecoder("utf-16le").decode(new Uint16Array([0x6b, 0x22, 0x61]));
  expect({ [wide]: 1 }).toMatchInlineSnapshot(); // writes  "k"a": 1,
  expect({ ['k"b']: 1 }).toMatchInlineSnapshot(); // writes  "k\"b": 1,
});

USE_SYSTEM_BUN=1 bun test test/js/bun/util/inspect.test.js -t "internal representation" fails 14 of 14. bun bd test passes all 14.
USE_SYSTEM_BUN=1 bun test test/js/bun/test/snapshot-tests/bun-snapshots.test.ts -t "object keys" fails. bun bd test passes.
string/SurrogatePairs_browser in test/bundler/bundler_string.test.ts fails before and passes after.

PR: #42320

coderabbitai · 2026-09-11T11:49:26Z

Walkthrough

The change decodes valid UTF-16 surrogate pairs during string escaping, preserves lone surrogate escapes, routes formatting through a shared JSON writer, removes a redundant UTF-16 helper, and adds coverage for bundling, inspection, snapshots, and runtime output.

Changes

Unicode escaping

Layer / File(s)	Summary
Surrogate-pair decoding `src/bun_core/string/mod.rs`, `src/js_printer/lib.rs`	String escaping now consumes valid surrogate pairs as one code point. Lone surrogates retain individual escaping.
Shared encoded JSON writer `src/js_printer/lib.rs`, `src/jsc/ConsoleObject.rs`, `src/runtime/test_runner/pretty_format.rs`	Encoded strings, property keys, primitive strings, boxed strings, typed-array text, and test formatting use the shared JSON writer.
Generic UTF-16 helper usage `src/bun_core/string/immutable.rs`, `src/runtime/cli/run_command.rs`	The public `index_of_any16` wrapper is removed. Windows argument quoting uses `index_of_any_t` directly.
Surrogate and formatting coverage `test/bundler/*`, `test/js/bun/util/inspect.test.js`, `test/js/bun/test/snapshot-tests/bun-snapshots.test.ts`	Tests cover valid pairs, lone and mixed surrogates, string encodings, property keys, snapshots, inspection output, and runtime behavior.

Suggested reviewers: jarred-sumner

Priority: ➖ Normal

Merge Risk: 🔵 Low · up to d825f

The new snapshot tests do not follow the repository’s required snapshot matcher convention. Convert them to file snapshots before merging.

🚥 Pre-merge checks | ✅ 4

✅ Passed checks (4 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title clearly summarizes the main change: unified escaping for 16-bit strings and object keys across the listed printers.
Description check	✅ Passed	The description provides detailed problem context, implementation details, behavior changes, test coverage, verification results, and known test limitations. It does not use the template headings, but…
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

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coderabbitai

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Inline comments:
In `@test/bundler/bundler_string.test.ts`:
- Line 224: Replace the for-loop over the browser and bun targets with a
describe.each() parameterized test suite, preserving the existing test body and
coverage for both target values.

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📒 Files selected for processing (6)

src/bun_core/string/mod.rs
src/js_printer/lib.rs
src/jsc/ConsoleObject.rs
test/bundler/bundler_string.test.ts
test/bundler/transpiler/transpiler.test.js
test/js/bun/util/inspect.test.js

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claude

I reviewed this PR and didn't find any bugs. Because it changes user-visible bundler/transpiler output for non-bun targets (astral characters now emitted literally instead of as \uHIGH\uLOW, busting content hashes once) and trades throughput on the 16-bit hot path, a human sign-off on those output and perf decisions would still be worthwhile.

What was reviewed:

Surrogate-pair handling in both write_pre_quoted_string copies — decode_surrogate_pair only returns Some for a well-formed high+low pair, so lone/reversed surrogates still fall through to the per-unit \uXXXX escape; width/clamped_width advance correctly on both the print-as-is and surrogate_pair_escape branches.
WrappedWriter::write_json_string branches on the actual encoding tag (16-bit → Utf16, is_utf8() → Utf8, else Latin1) and routes write failures to self.failed instead of the removed .expect.
The deleted write_16_bit helper has no remaining callers in ConsoleObject.rs; the sibling copy in pretty_format.rs is intentionally left for a follow-up per the PR description.
Tests follow harness conventions (concurrent pipe drain, finally restore of String.prototype.toJSON, Buffer.alloc over .repeat, encoding assertions before and after).

Extended reasoning...

Overview

This PR unifies how 8-bit (Latin-1) and 16-bit (UTF-16) JSC strings are escaped in Bun.inspect/console.log and in the shared JS/JSON string printer. In src/js_printer/lib.rs and its mirror src/bun_core/string/mod.rs, the UTF-16 branch of write_pre_quoted_string_inner now decodes a well-formed surrogate pair as a single code point (width 2) so it prints as one character, or one \uHIGH\uLOW pair under ascii_only, instead of two independent \uXXXX escapes. In src/jsc/ConsoleObject.rs, three bespoke 16-bit branches (property keys, quoted strings, String objects) are replaced by a single WrappedWriter::write_json_string(EncodedSlice) that dispatches on the encoding tag to bun_js_printer::write_json_string. Tests in inspect.test.js, bundler_string.test.ts, and transpiler.test.js cover 8-bit vs 16-bit parity, lone/reversed surrogates, String objects, toJSON non-invocation, and 16-bit keys holding only Latin-1 characters.

Security risks

None identified. This is output-formatting code with no auth, crypto, path, or network handling. The only untrusted-input concern is bounds on the UTF-16 slice: the new i + 1 < n guard before reading text16[i + 1] is correct, and decode_surrogate_pair is a pure const fn that returns None unless the lead is in the high-surrogate range and the trail is in the low-surrogate range, so no code point outside U+10000..=U+10FFFF can reach encode_wtf8_rune or surrogate_pair_escape from this path.

Level of scrutiny

Medium-high. The escaper is a shared hot path used by the bundler, transpiler, and console formatter, and REVIEW.md flags "escaping/serialization lives in the output layer" and "when fixing one encoding branch, audit every sibling encoding path" as areas that block merges. The code change itself is small and mechanically sound, but it deliberately changes observable output: bun build --target=browser|node and Bun.Transpiler now emit literal astral characters in string literals (previously 👋), which busts content hashes once, and Bun.inspect on 16-bit strings now escapes U+2028/U+2029/U+FEFF and lone surrogates with uppercase hex where it previously printed them raw or via lowercase JSON.stringify output. The PR also self-reports a throughput regression on large 16-bit strings (~12 ms → ~21 ms for 2M CJK chars in release). These are product decisions a maintainer should ratify, not correctness bugs.

Other factors

Test coverage is thorough and follows the repo's conventions closely: Promise.all draining of subprocess pipes with a combined { stdout, stderr, exitCode } assertion, Buffer.alloc(n, fill) over .repeat, finally-restored global mutation of String.prototype.toJSON, toBeLatin1String/toBeUTF16String guards to prove each case exercises the intended encoding branch, and itBundled for the bundler variants across both browser and bun targets. The removed .expect("unreachable") calls are replaced by setting failed = true, matching REVIEW.md's "user-reachable failures are recoverable errors, never panics." The deleted write_16_bit helper has no remaining callers in ConsoleObject.rs; the acknowledged twin in src/runtime/test_runner/pretty_format.rs is intentionally deferred to avoid churning .snap files. No CODEOWNERS entries cover the changed paths. Given the user-visible output change and the hot-path perf tradeoff, deferring for a human sign-off rather than auto-approving.

The console key printer was its last caller outside Windows-only code. The two Windows callers now call index_of_any_t, which it wrapped.

…nter pretty_format.rs had the same raw 16-bit key branch as write_property_key in ConsoleObject.rs. Both printers now call bun_js_printer::write_json_string_encoded, so a key prints the same in a snapshot, a toEqual diff, a toBe message and Bun.inspect. A lone surrogate in a key prints as a \uXXXX escape in both printers.

…oth widths The runtime-encoding adapter in ConsoleObject.rs had one caller left, the Uint8Array-as-text arm of the error printer. It now calls the same WrappedWriter::write_json_string as keys and values. inspect.test.js: the 8-bit and 16-bit comparison is an it.each table with one row per place that prints a quoted string.

robobun · 2026-09-12T08:56:41Z

This PR now also carries #42299.

Both PRs rewrote the same key.is_16bit() branch of write_property_key in src/jsc/ConsoleObject.rs, each with a different escaper. I built both branches and printed 20 keys with each. The output differs only for a key with a lone surrogate: #42299 prints U+FFFD, this PR prints \uD800. The key printer in pretty_format.rs cannot print \uD800 without the surrogate pair fix in this PR, so one PR is the smaller change.

New in this push:

bun_js_printer::write_json_string_encoded. The console printer and the bun:test printer both call it, so a key prints the same in a snapshot, a toEqual diff, a toBe message and Bun.inspect.
The test from Escape object keys the same way for Latin-1 and UTF-16 strings in bun:test and Bun.inspect #42299 in bun-snapshots.test.ts, with a lone surrogate key added. It compares the three outputs.
The removal of index_of_any16 from Escape object keys the same way for Latin-1 and UTF-16 strings in bun:test and Bun.inspect #42299. The console key printer was its last caller outside Windows-only code. That was the red mordant check here.
The JSPrinter facade in ConsoleObject.rs is gone. It had one caller left.
inspect.test.js: the 8-bit and 16-bit comparison is one it.each table with a row per place that prints a quoted string.

The title and the body describe the PR as it now stands. The body lists the two output changes that need a decision (the bundler output for astral characters, and the direction for snapshot keys), the carve-out if the snapshot change is not wanted, and the order against #31998, #41789, #36404, #37303, #39965 and #39745.

I will close #42299 when CI on this head is green.

claude

Nothing blocking. The comments below are optional suggestions. There is no need to push a fix for them before merging.

coderabbitai

Actionable comments posted: 1

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Inline comments:
In `@test/js/bun/test/snapshot-tests/bun-snapshots.test.ts`:
- Line 49: Replace the toMatchInlineSnapshot() calls in the snapshot tests
around the existing expect(value) assertions with toMatchSnapshot(), and
generate and commit the corresponding snapshot file while preserving the
expected snapshot contents.

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📒 Files selected for processing (7)

src/bun_core/string/immutable.rs
src/js_printer/lib.rs
src/jsc/ConsoleObject.rs
src/runtime/cli/run_command.rs
src/runtime/test_runner/pretty_format.rs
test/js/bun/test/snapshot-tests/bun-snapshots.test.ts
test/js/bun/util/inspect.test.js

💤 Files with no reviewable changes (1)

src/bun_core/string/immutable.rs

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claude

Code review found no issues

No high-confidence issues detected in this change.

robobun assigned Jarred-Sumner Sep 11, 2026

github-actions Bot added the claude label Sep 11, 2026

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Comment thread test/bundler/bundler_string.test.ts

claude Bot reviewed Sep 11, 2026

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robobun added 4 commits September 11, 2026 12:25

ci: retrigger

03101a6

Remove index_of_any16

5bc8c1f

The console key printer was its last caller outside Windows-only code. The two Windows callers now call index_of_any_t, which it wrapped.

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Comment thread src/js_printer/lib.rs Outdated

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Comment thread src/jsc/ConsoleObject.rs Outdated

robobun changed the title ~~Escape 16-bit strings and object keys like 8-bit ones (console.log, JS printer)~~ Escape 16-bit strings and object keys like 8-bit ones (console.log, bun:test, JS printer) Sep 12, 2026

robobun mentioned this pull request Sep 11, 2026

Escape object keys the same way for Latin-1 and UTF-16 strings in bun:test and Bun.inspect #42299

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claude Bot reviewed Sep 12, 2026

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Comment thread src/runtime/test_runner/pretty_format.rs

Shorten two doc comments to one line

d825f91

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Comment thread test/js/bun/test/snapshot-tests/bun-snapshots.test.ts

claude Bot reviewed Sep 12, 2026

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Escape 16-bit strings and object keys like 8-bit ones (console.log, bun:test, JS printer) - #42320

Escape 16-bit strings and object keys like 8-bit ones (console.log, bun:test, JS printer)#42320
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