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Truly independent web browser
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Linus Groh 09bd5f8772 LibJS: Rewrite most of Object for spec compliance :^) 
This is a huge patch, I know. In hindsight this perhaps could've been
done slightly more incremental, but I started and then fixed everything
until it worked, and here we are. I tried splitting of some completely
unrelated changes into separate commits, however. Anyway.

This is a rewrite of most of Object, and by extension large parts of
Array, Proxy, Reflect, String, TypedArray, and some other things.

What we already had worked fine for about 90% of things, but getting the
last 10% right proved to be increasingly difficult with the current code
that sort of grew organically and is only very loosely based on the
spec - this became especially obvious when we started fixing a large
number of test262 failures.

Key changes include:

- 1:1 matching function names and parameters of all object-related
  functions, to avoid ambiguity. Previously we had things like put(),
  which the spec doesn't have - as a result it wasn't always clear which
  need to be used.
- Better separation between object abstract operations and internal
  methods - the former are always the same, the latter can be overridden
  (and are therefore virtual). The internal methods (i.e. [[Foo]] in the
  spec) are now prefixed with 'internal_' for clarity - again, it was
  previously not always clear which AO a certain method represents,
  get() could've been both Get and [[Get]] (I don't know which one it
  was closer to right now).
  Note that some of the old names have been kept until all code relying
  on them is updated, but they are now simple wrappers around the
  closest matching standard abstract operation.
- Simplifications of the storage layer: functions that write values to
  storage are now prefixed with 'storage_' to make their purpose clear,
  and as they are not part of the spec they should not contain any steps
  specified by it. Much functionality is now covered by the layers above
  it and was removed (e.g. handling of accessors, attribute checks).
- PropertyAttributes has been greatly simplified, and is being replaced
  by PropertyDescriptor - a concept similar to the current
  implementation, but more aligned with the actual spec. See the commit
  message of the previous commit where it was introduced for details.
- As a bonus, and since I had to look at the spec a whole lot anyway, I
  introduced more inline comments with the exact steps from the spec -
  this makes it super easy to verify correctness.
- East-const all the things.

As a result of all of this, things are much more correct but a bit
slower now. Retaining speed wasn't a consideration at all, I have done
no profiling of the new code - there might be low hanging fruits, which
we can then harvest separately.

Special thanks to Idan for helping me with this by tracking down bugs,
updating everything outside of LibJS to work with these changes (LibWeb,
Spreadsheet, HackStudio), as well as providing countless patches to fix
regressions I introduced - there still are very few (we got it down to
5), but we also get many new passing test262 tests in return. :^)

Co-authored-by: Idan Horowitz <idan.horowitz@gmail.com>
2021-07-04 22:07:36 +01:00
.github CI: Manually cleanup previous self-hosted test262 run workspace folder 2021-07-03 19:45:04 +01:00
AK AK: Add generation of roman numerals to AK::String 2021-07-04 22:17:03 +02:00
Base Browser: Add Test-Page for lists 2021-07-04 22:17:03 +02:00
Documentation Documentation: Add git to the list of self-hosted runner requirements 2021-07-03 19:45:04 +01:00
Kernel Everywhere: Fix incorrect usages of AK::Checked 2021-07-04 20:08:28 +01:00
Meta LibTTF: Memory map TTF fonts instead of reading them into heap memory 2021-07-04 21:34:26 +02:00
Ports Ports: Remove obsolete patches for ninja 2021-07-04 00:35:35 +02:00
Tests LibWeb/WebAssembly+test-wasm: Use get_without_side_effects() more 2021-07-04 22:07:36 +01:00
Toolchain Meta: Change the QEMU binary directory to Toolchain/Local/qemu 2021-07-03 12:06:20 +02:00
Userland LibJS: Rewrite most of Object for spec compliance :^) 2021-07-04 22:07:36 +01:00
.clang-format Meta: Update .clang-format to not indent nested namespaces 2020-03-14 10:10:21 +01:00
.gitattributes Meta: Mark the other image file formats as binary in .gitattributes 2021-05-20 08:04:28 +02:00
.gitignore LibWasm+Meta: Implement instantiation/execution primitives in test-wasm 2021-05-21 00:15:23 +01:00
.mailmap Meta: Add my emails to .mailmap 2021-06-30 00:59:23 +04:30
.pre-commit-config.yaml Meta: Add a post-commit commit message linter hook 2021-05-02 16:28:01 +02:00
.prettierignore LibJS: Correct behaviour of direct vs. indirect eval 2021-06-23 09:38:33 +01:00
.prettierrc Meta: Move prettier config files to the root of the repository 2020-08-24 18:21:33 +02:00
CMakeLists.txt Toolchain+Userland: Enable TLS for x86_64 2021-07-04 01:07:28 +02:00
CONTRIBUTING.md Meta: Add Gunnar to the project reviewers in CONTRIBUTING.md :^) 2021-07-02 22:04:26 +01:00
LICENSE Everywhere: Use "the SerenityOS developers." in copyright headers 2021-04-29 00:59:26 +02:00
README.md Everywhere: Use new discord invite url :^) 2021-06-14 22:41:37 +01:00

README.md

SerenityOS

Graphical Unix-like operating system for x86 computers.

Build status Fuzzing Status Discord

About

SerenityOS is a love letter to '90s user interfaces with a custom Unix-like core. It flatters with sincerity by stealing beautiful ideas from various other systems.

Roughly speaking, the goal is a marriage between the aesthetic of late-1990s productivity software and the power-user accessibility of late-2000s *nix. This is a system by us, for us, based on the things we like.

I (Andreas) regularly post raw hacking sessions and demos on my YouTube channel.

Sometimes I write about the system on my github.io blog.

I'm also on Patreon and GitHub Sponsors if you would like to show some support that way.

Screenshot

Screenshot as of 0f85753.png

Kernel features

  • x86 (32-bit) kernel with pre-emptive multi-threading
  • Hardware protections (SMEP, SMAP, UMIP, NX, WP, TSD, ...)
  • IPv4 stack with ARP, TCP, UDP and ICMP protocols
  • ext2 filesystem
  • POSIX signals
  • Purgeable memory
  • /proc filesystem
  • Pseudoterminals (with /dev/pts filesystem)
  • Filesystem notifications
  • CPU and memory profiling
  • SoundBlaster 16 driver
  • VMWare/QEMU mouse integration

System services

  • Launch/session daemon (SystemServer)
  • Compositing window server (WindowServer)
  • Text console manager (TTYServer)
  • DNS client (LookupServer)
  • Network protocols server (RequestServer and WebSocket)
  • Software-mixing sound daemon (AudioServer)
  • Desktop notifications (NotificationServer)
  • HTTP server (WebServer)
  • Telnet server (TelnetServer)
  • DHCP client (DHCPClient)

Libraries

  • C++ templates and containers (AK)
  • Event loop and utilities (LibCore)
  • 2D graphics library (LibGfx)
  • OpenGL 1.x compatible library (LibGL)
  • GUI toolkit (LibGUI)
  • Cross-process communication library (LibIPC)
  • HTML/CSS engine (LibWeb)
  • JavaScript engine (LibJS)
  • Markdown (LibMarkdown)
  • Audio (LibAudio)
  • PCI database (LibPCIDB)
  • Terminal emulation (LibVT)
  • Out-of-process network protocol I/O (LibProtocol)
  • Mathematical functions (LibM)
  • ELF file handling (LibELF)
  • POSIX threading (LibPthread)
  • Higher-level threading (LibThreading)
  • Transport Layer Security (LibTLS)
  • HTTP and HTTPS (LibHTTP)

Userland features

  • Unix-like libc and userland
  • Shell with pipes and I/O redirection
  • On-line help system (both terminal and GUI variants)
  • Web browser (Browser)
  • C++ IDE (HackStudio)
  • IRC client
  • Desktop synthesizer (Piano)
  • Various desktop apps & games
  • Color themes

How do I read the documentation?

Man pages are available online at man.serenityos.org. These pages are generated from the Markdown source files in Base/usr/share/man and updated automatically.

When running SerenityOS you can use man for the terminal interface, or help for the GUI.

How do I build and run this?

See the SerenityOS build instructions

Before opening an issue

Please see the issue policy.

FAQ: Frequently Asked Questions

Get in touch

Join our Discord server: SerenityOS Discord

Author

Contributors

(And many more!) The people listed above have landed more than 100 commits in the project. :^)

License

SerenityOS is licensed under a 2-clause BSD license.