## Summary
- Implements the `%j` format specifier for `console.log` and related
console methods
- `%j` outputs the JSON stringified representation of the value
- Previously, `%j` was not recognized and was left as literal text in
the output
## Test plan
- [x] Run `bun bd test test/regression/issue/24234.test.ts` - all 5
tests pass
- [x] Verify tests fail with system Bun (`USE_SYSTEM_BUN=1`) to confirm
fix validity
- [x] Manual verification: `console.log('%j', {foo: 'bar'})` outputs
`{"foo":"bar"}`
## Example
Before (bug):
```
$ bun -e "console.log('%j %s', {foo: 'bar'}, 'hello')"
%j [object Object] hello
```
After (fixed):
```
$ bun -e "console.log('%j %s', {foo: 'bar'}, 'hello')"
{"foo":"bar"} hello
```
Closes#24234🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-authored-by: Claude Bot <claude-bot@bun.sh>
Co-authored-by: Claude <noreply@anthropic.com>
### What does this PR do?
### How did you verify your code works?
---------
Co-authored-by: autofix-ci[bot] <114827586+autofix-ci[bot]@users.noreply.github.com>
Co-authored-by: Claude Bot <claude-bot@bun.sh>
Co-authored-by: Claude <noreply@anthropic.com>
* fix a few ipc issues
* a
* my own revisions
* remove none as a valid type
* a
* fix windows build
* remove comment
* make it work !!!!!!!!
* a
* formatter nonsense
* blah
* huge update refactor
* awa
* wow
* okay
* WIP sync close (shows ref count bug in stream)
* fix closing on PipeWriter and PipeReader
* remove old todos
* join
* Some shell changes
at least it compiles
* fix some compile errors
* fix ref/unref server on windows
* actually use the ref count in this places
* make windows compile again
* more tests passing
* Make shell compile again
* Slowly remove some `@panic("TODO SHELL")`
* Eliminate `@panic("TODO SHELL")` for BufferedWriter
* Holy cleansing of `@panic("TODO SHELL")`
at least it compiles now
* Okay now the shell compiles, but segfaults
* Fix compiler errors
* more stable stream and now Content-Range pass
* make windows compile again
* revert stuff until the fix is actually ready
* revert onDone thing
* Fix buffered writer for shell
* Fix buffered writer + shell/subproc.zig and windows build
* Fix for #8982 got lost in the merge
* Actually buffer subproc output
* Fix some stuff shell
* oops
* fix context deinit
* fix renderMissing
* shell: Fix array buffer
* more stable streams (#9053)
fix stream ref counting
* wip
* Remove `@panic("TODO")` on shell event loop tasks and Redirect open flags got lost in merge
* Support redirects
* fixes
cc @cirospaciari
* Update ReadableStreamInternals.ts
* Fix spurious error
* Update stream.js
* leak
* Fix UAF
cc @cirospaciari
* Fix memory leaks
* HOLY FUCK big refactor
* misc cleanup
* shell: Fix a bunch of tests
* clean up
* gitignore: fix ending newline
* get windows compiling again
* tidy
* hide linker warn with icu
* closeIfPossible
* Better leak test
* Fix forgetting to decrement reference count
* Update stdio.zig
* Fix shell windows build
* Stupid unreachable
* Woops
* basic echo hi works on windows
* Fix flaky test on Windows
* Fix windows regression in Bun.main (#9156)
* Fix windows regression in Bun.main
* Handle invalid handles
* Fix flaky test
* Better launch config
* Fixup
* Make this test less flaky on Windows
* Fixup
* Cygwin
* Support signal codes in subprocess.kill(), resolve file path
* Treat null as ignore
* Ignore carriage returns
* Fixup
* shell: Fix IOWriter bug
* shell: Use custom `open()`/`openat()`
* windows shell subproc works
* zack commit
* I think I understand WindowsStreamingWriter
* fix thing
* why were we doing this in tests
* shell: Fix rm
* shell: Add rm -rf node_modules/ test
* shell: use `.runAsTest()` in some places to make it easier to determine which test failed
* [autofix.ci] apply automated fixes
* woopsie
* Various changes
* Fix
* shell: abstract output task logic
* shell: mkdir builtin
* fixup
* stuff
* shell: Make writing length of 0 in IOWriter immediately resolve
* shell: Implement `touch`
* shell: basic `cat` working
* Make it compile on windows
* shell: Fix IOReader bug
* [autofix.ci] apply automated fixes
* fix windows kill on subprocess/process
* fix dns tests to match behavior on windows (same as nodejs)
* fix windows ci
* again
* move `close_handle` to flags in `PipeWriter` and fix shell hanging
* Fix `ls` not giving non-zero exit code on error
* Handle edgecase in is_atty
* Fix writer.flush() when there's no data
* Fix some tests
* Disable uv_unref on uv_process_t on Windows, for now.
* fix writer.end
* fix stdout.write
* fix child-process on win32
* Make this test less flaky on Windows
* Add assertion
* Make these the same
* Make it pass on windows
* Don't commit
* Log the test name
* Make this test less flaky on windows
* Make this test less flaky on windows
* Print which test is taking awhile in the runner
* fixups
* Fixups
* Add some assertions
* Bring back test concurrency
* shell: bring back redirect stdin
* make it compile again cc @zackradisic
* initialize env map with capacity
* some fixes
* cleanup
* oops
* fix leak, fix done
* fix unconsumedPromises on events
* always run expect
* Update child_process.test.ts
* fix reading special files
* Fix a test
* Deflake this test
* Make these comparisons easier
* Won't really fix it but slightly cleaner
* Update serve.test.ts
* Make the checks for if the body is already used more resilient
* Move this to the harness
* Make this test not hang in development
* Fix this test
* Make the logs better
* zero init some things
* Make this test better
* Fix readSocket
* Parallelize this test
* Handle EPipe and avoid big data
* This was a mistake
* Fix a bunch of things
* Fix memory leak
* Avoid sigpipe + optimize + delete dead code
* Make this take less time
* Make it bigger
* Remove some redundant code
* Update process.zig
* Merge and hopefully don't breka things along teh way
* Silence build warning
* Uncomment on posix
* Skip test on windows
* windows
* Cleanup test
* Update
* Deflake
* always
* less flaky test
* [autofix.ci] apply automated fixes
* logs
* fix uaf on shell IOReader
* stuff to make it work with mini event loop
* fix 2 double free scenarios, support redirections on windows
* shell: Make `1>&2` and `2>&1` work with libuv
* yoops
* Partial fix
* Partial fix
* fix build
* fix build
* ok
* Make a couple shell tests pass
* More logging
* fix
* fix
* Fix build issue
* more tests pass
* Deflake
* Deflake
* Use Output.panic instead of garbled text
* Formatting
* Introduce `bun.sys.File`, use it for `Output.Source.StreamType`, fix nested Output.scoped() calls, use Win32 `ReadFile` API for reading when it's not a libuv file descriptor.
This lets us avoid the subtle usages of `unreachable` in std.os when writing to stdout/stderr.
Previously, we were initializing the libuv loop immediately at launch due to checking for the existence of a bun build --compile'd executable. When the file descriptor is not from libuv, it's just overhead to use libuv
cc @paperdave, please tell me if Iany of that is incorrect or if you think this is a bad idea.
* Fix closing undefined memory file descriptors in spawn
cc @zackradisic
* pause instead of close
* Fix poorly-written test
* We don't need big numbers for this test
* sad workaround
* fixup
* Clearer error handling for this test
* Fix incorrect test
@electroid when ReadableStream isn't closed, hanging is the correct behavior when consuming buffered data. We cannot know if the buffered data is finished if the stream never closes.
* Fix build
* Remove known failing on windows
* Deflake
* Mark no longer failing
* show all the failing tests
* Sort the list of tests
* fix argument handling
* dont show "posix_spawn" as an error code on windows
* make bun-upgrade.test.ts pass on windows
* fix bunx and bun create again sorry
* a
* fix invalidexe because we should not be running javascript files as if they were exes
* Concurrency in test runner + better logging
* Revert "fix invalidexe because we should not be running javascript files as if they were exes"
This reverts commit da47cf8247.
* WIP: Unix fixes (#9322)
* wip
* [autofix.ci] apply automated fixes
* wip 2
* [autofix.ci] apply automated fixes
---------
Co-authored-by: autofix-ci[bot] <114827586+autofix-ci[bot]@users.noreply.github.com>
Co-authored-by: Jarred Sumner <jarred@jarredsumner.com>
* Update runner.node.mjs
* Update runner.node.mjs
* Document some environment variables
* shell: Make `Response` work with builtins
* Make it compile
* make pwd test pass
* [autofix.ci] apply automated fixes
* Fix printing garbage for source code previews
* Update javascript.zig
* Fix posix test failures
* Fix signal dispatch
cc @paperdave. Signals can be run from any thread. This causes an assertion failure when the receiving thread happens to not be the main thread. Easiest to reproduce on linux when you spawn 100 short-lived processes at once.
* windows
---------
Co-authored-by: cirospaciari <ciro.spaciari@gmail.com>
Co-authored-by: Zack Radisic <56137411+zackradisic@users.noreply.github.com>
Co-authored-by: Zack Radisic <zackradisic@Zacks-MBP-2.attlocal.net>
Co-authored-by: Jarred Sumner <709451+Jarred-Sumner@users.noreply.github.com>
Co-authored-by: Meghan Denny <meghan@bun.sh>
Co-authored-by: Zack Radisic <zack@theradisic.com>
Co-authored-by: autofix-ci[bot] <114827586+autofix-ci[bot]@users.noreply.github.com>
Co-authored-by: dave caruso <me@paperdave.net>
Co-authored-by: Dylan Conway <dylan.conway567@gmail.com>
* Move ReadFile and WriteFile to separate file
* Use libuv for Bun.write()
* Update windows_event_loop.zig
* build
* Get bun-write tests to pass. Implement Bun.write with two files.
* UPdate
* Update
* Update failing test list
* update
* More
* More
* More
* More
* Mark the rest
* ok
* oops
* Update bun-write.test.js
* Update blob.zig
---------
Co-authored-by: Jarred Sumner <709451+Jarred-Sumner@users.noreply.github.com>
Co-authored-by: Dave Caruso <me@paperdave.net>
Co-authored-by: Georgijs Vilums <georgijs.vilums@gmail.com>
* Avoid deadlock in messageWithTypeAndLevel by adding a recursion counter
* Add test for recursive logs
* Do not rely on output of console-recursive.test.js
* [autofix.ci] apply automated fixes
---------
Co-authored-by: autofix-ci[bot] <114827586+autofix-ci[bot]@users.noreply.github.com>
* feat: use trailing commas when printing multi-line objects
* test: update console-log.expected.txt to include trailing commas
* test: update a couple tests to match new object output with trailing commas
* [autofix.ci] apply automated fixes
---------
Co-authored-by: Alex See <alexsee@Alexs-MacBook-Air.local>
Co-authored-by: dave caruso <me@paperdave.net>
Co-authored-by: autofix-ci[bot] <114827586+autofix-ci[bot]@users.noreply.github.com>
* feat(console-log): fix className not printed for objects that are instances of classes
Uses getClassName native method instead of getName
* test(console-log): objects with class names are printed correctly
* test(esbuild): add class name to log message
* feat(console): add printer for mapiterator
MapIterator was not supported in printing, libraries like discordjs make big use of maps and
so i think supporting them would be a good idea.
* fix: snake case var
* fix: add tests for log and add setiterator printer
* fix: support console,dir options object correctly
`console.dir` can be passed a second argument which is a object of options.
This implements that logic with the currently supported properties: `depth`
and `colors`.
I used node as a reference for implementation details.
Fixes: https://github.com/oven-sh/bun/issues/6039
* style: format zig file
* fix: implement changes from review
Implements changes requested from review, like adding
more test cases and refactoring code style.
* [breaking] Don't quote property names of identifiers in console.log
* Make UTF-16 strings green
* always quote for jest
* update tests
* Update this
---------
Co-authored-by: Jarred Sumner <709451+Jarred-Sumner@users.noreply.github.com>
* buggy snapshot
* error output for failed snapshot
* missing first
* hints
* open dir once, better cleanup
* update flag
* truncate on update
* object and class snapshot formatting
* array formatting
* no function name, single item is empty array
* string objects, maps, sets, promise
* avoid using invalid memory
* handle number objects
* handle extending `Number`
* boolean objects
* snapshot tests and test updates
* snapshot format for buffers
* safer snapshot parsing
* property matchers setup
* strings and tests
* generate classes with empty prototype
* optional `propertyMatchers` parameter
* new test folder structure
* strings.eqlLong
* globalObject.throwPretty() and expect.any tests
* add updateSnapshot flag to help
* move snapshot format out of `printErrorlikeObject`
* empty object snapshot format
* separate typed array, remove trailing comma
* use `isCell`, object trailing commas
* handle unicode
* todo for primitive constructors
* switch to `JSC.Node.Syscall.open` and `JSC.Maybe`
* use js parser for snapshot files
* deinit ast, log parse error
* copy/paste most of `exports.ZigConsoleClient`
* remove snapshot option
* remove ordered properties option
* remove snapshot format option from `exports.zig`
* remove extra newlines
* change mode
* update test runner output
* escape backticks faster
* `bunx jest` in temp dir
* remove buffered writer
* add `toMatchSnapshot` to types
* cleanup, switch to `pread`
* cli `--update` flag
* `--update-snapshots`
* remove string object format
