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Alexander Markov 35d8630176 [vm] Make String.codeUnitAt monomorphic
The new implementation of String.codeUnitAt is always inlined and
doesn't depend on the polymorphic inlining of recognized methods.

String.codeUnitAt now has a custom body in the flow graph builder
which  performs non-speculative bounds check and then branches between
OneByteString and TwoByteString. Corresponding graph intrinsic and
native method are removed.

This change also fixes passing of unboxed arguments to runtime
in the slow path of GenericCheckBound instruction in JIT mode
(when shared stubs are not used).

TEST=ci

Change-Id: Iab2805fc752df84c37089165f828e31aca5f043f
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/359000
Reviewed-by: Slava Egorov <vegorov@google.com>
Commit-Queue: Alexander Markov <alexmarkov@google.com>
2024-03-24 14:50:17 +00:00
.dart_tool
.github Bump actions/checkout from 4.1.1 to 4.1.2 2024-03-19 10:07:23 +00:00
benchmarks [benchmarks] Fix benchmarks warming up incorrectly. 2024-02-22 14:38:19 +00:00
build [infra] Update alpine sysroot 2024-03-21 10:43:15 +00:00
docs Add requirement to fix downstream repositories 2024-03-13 14:13:49 +00:00
pkg Completion. Issue 55167. Suggest type names for DeclaredVariablePattern, in SwitchPatternCase. 2024-03-23 17:01:30 +00:00
runtime [vm] Make String.codeUnitAt monomorphic 2024-03-24 14:50:17 +00:00
samples fix use of deprecated members in ffi samples 2024-01-31 22:31:59 +00:00
sdk [vm] Make String.codeUnitAt monomorphic 2024-03-24 14:50:17 +00:00
tests Constant evaluator won't assume all dart.library.x entries exist. 2024-03-23 11:18:46 +00:00
third_party [dds/dap] Bump package:dap and the version used by DDS 2024-02-29 19:22:19 +00:00
tools [infra] Remove --no-goma from test matrix. 2024-03-22 12:21:39 +00:00
utils [ VM / DDS ] Add --print-dtd-uri flag and launch DTD from the correct snapshot for AOT 2024-03-21 19:50:46 +00:00
.clang-format
.gitattributes Fix allowing Windows newlines in sh files. 2024-03-19 11:27:14 +00:00
.gitconfig
.gitignore [infra] Support testing with RBE on Windows. 2024-02-29 10:33:09 +00:00
.gn [build] Switch to Fuchsia core SDK. 2023-11-10 19:23:11 +00:00
.mailmap Fixed various typos in a lot of files 2022-07-25 12:21:59 +00:00
.style.yapf
AUTHORS Simplify the license situation 2022-09-14 21:06:22 +00:00
BUILD.gn [vm] Do not bundle dart.lib in the Dart SDK 2024-02-15 14:09:37 +00:00
CHANGELOG.md Constant evaluator won't assume all dart.library.x entries exist. 2024-03-23 11:18:46 +00:00
codereview.settings
CONTRIBUTING.md Update CONTRIBUTING.md 2023-11-20 09:29:37 +00:00
DEPS Updating DTD docs to ensure they are ready for the consumption. 2024-03-22 01:28:39 +00:00
LICENSE
OWNERS Assign owners to each top level file. 2023-12-14 12:38:11 +00:00
PATENT_GRANT
PRESUBMIT.py [presubmit] Force read files as UTF-8 2024-03-05 14:25:09 +00:00
README.dart-sdk Update README.dart-sdk for inclusion of AOT snapshots 2023-11-21 10:33:22 +00:00
README.md Update readme content 2023-12-18 15:30:58 +00:00
sdk.code-workspace [cleanup] Remove co19_2 and other references to _2 suites 2023-11-22 11:15:57 +00:00
sdk_args.gni [gn] Add an option to specify the sdk_hash 2024-03-07 04:11:48 +00:00
SECURITY.md
WATCHLISTS [analyzer] Properly close analyzer WATCHLISTS entry 2023-12-10 18:02:25 +00:00

Dart

An approachable, portable, and productive language for high-quality apps on any platform

Dart is:

  • Approachable: Develop with a strongly typed programming language that is consistent, concise, and offers modern language features like null safety and patterns.

  • Portable: Compile to ARM, x64, or RISC-V machine code for mobile, desktop, and backend. Compile to JavaScript or WebAssembly for the web.

  • Productive: Make changes iteratively: use hot reload to see the result instantly in your running app. Diagnose app issues using DevTools.

Dart's flexible compiler technology lets you run Dart code in different ways, depending on your target platform and goals:

  • Dart Native: For programs targeting devices (mobile, desktop, server, and more), Dart Native includes both a Dart VM with JIT (just-in-time) compilation and an AOT (ahead-of-time) compiler for producing machine code.

  • Dart Web: For programs targeting the web, Dart Web includes both a development time compiler (dartdevc) and a production time compiler (dart2js).

Dart platforms illustration

License & patents

Dart is free and open source.

See LICENSE and PATENT_GRANT.

Using Dart

Visit dart.dev to learn more about the language, tools, and to find codelabs.

Browse pub.dev for more packages and libraries contributed by the community and the Dart team.

Our API reference documentation is published at api.dart.dev, based on the stable release. (We also publish docs from our beta and dev channels, as well as from the primary development branch).

Building Dart

If you want to build Dart yourself, here is a guide to getting the source, preparing your machine to build the SDK, and building.

There are more documents on our wiki.

Contributing to Dart

The easiest way to contribute to Dart is to file issues.

You can also contribute patches, as described in Contributing.