## Summary
- Fix assertion failure in `Bun.mmap` when `offset` or `size` options
are non-numeric values
- Add validation to reject negative `offset`/`size` with clear error
messages
Minimal reproduction: `Bun.mmap("", { offset: null });`
## Root Cause
`Bun.mmap` was calling `toInt64()` directly on the `offset` and `size`
options without validating they are numbers first. `toInt64()` has an
assertion that the value must be a number or BigInt, which fails when
non-numeric values like `null` or functions are passed.
## Test plan
- [x] Added tests for negative offset/size rejection
- [x] Added tests for non-number inputs (null, undefined)
- [x] `bun bd test test/js/bun/util/mmap.test.js` passes
Closes ENG-22413
🤖 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>
* run-eval.test.ts
* transpiler-cache.test.ts
* node net
* some open things
* a
* a
* yikes
* incredible
* run it back
* a
* this code is what i like to call, incorrect
* ok its all worng
* remove an assertion that is wrong again
* update test things and rebase
* performance test
* mark filesink with mkfifo as todo. see #8166
* hehe
* not done
* awa
* fs test pass
---------
Co-authored-by: Jarred Sumner <709451+Jarred-Sumner@users.noreply.github.com>
Co-authored-by: Jarred Sumner <jarred@jarredsumner.com>
* Make some things sync on windows
* WIP
* WIP
* remove uses to uv_default_loop
* remove a compiler warning on windows
* edfghjk
* Windows build fixes
* Fixup
* bundows
* Add quotes
* Fix --cwd arg on Windows
* comment
* move this up
* Fix some tests
* `mv` tests pass
* spawn.test passes again
* Allow .sh file extension for Windows
* Unmark failing tests
* env test pass
* windows
* Fix some tests
* Update ProcessBindingTTYWrap.cpp
* Update CMakeLists.txt
* Set tmpdir
* Make it 5s on windows
* Fixup
* Fixup
* Update ProcessBindingTTYWrap.cpp
---------
Co-authored-by: Jarred Sumner <709451+Jarred-Sumner@users.noreply.github.com>
Co-authored-by: dave caruso <me@paperdave.net>
