Find a file
Daco Harkes 189c36b82a [vm] Native effects
Adds a way to express native effects in Dart expressions in kernel.

This CL adds a `void _nativeEffect(Object)` to `dart:internal`.
The semantics of `_nativeEffect` are to not execute its arguments and
return `null`.

This CL uses this `_nativeEffect` to make sure that we never execute
the struct constructor invocations used to simulate the native behavior
of FFI trampolines.

Closes: https://github.com/dart-lang/sdk/issues/45607

TEST=tests/ffi(_2)/native_effect_test.dart

Change-Id: Ie06de145e49f8b1cae9e148c2d5d97d5cd8e6878
Cq-Include-Trybots: luci.dart.try:vm-precomp-ffi-qemu-linux-release-arm-try,vm-ffi-android-debug-arm64-try,vm-kernel-precomp-asan-linux-release-x64-try,vm-kernel-precomp-dwarf-linux-product-x64-try,vm-kernel-precomp-linux-debug-x64-try,vm-kernel-precomp-obfuscate-linux-release-x64-try,analyzer-analysis-server-linux-try,analyzer-linux-release-try,dart-sdk-linux-try,vm-kernel-reload-rollback-linux-debug-x64-try,vm-kernel-reload-linux-debug-x64-try
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/194421
Reviewed-by: Alexander Markov <alexmarkov@google.com>
Commit-Queue: Daco Harkes <dacoharkes@google.com>
2021-04-09 16:45:13 +00:00
.dart_tool Migrate package:telemetry 2021-04-07 03:40:29 +00:00
.github Remove obsolete dartfix build target and scripts 2020-11-13 09:18:36 +00:00
benchmarks [vm/ffi] Exercise unaligned reads/writes 2021-03-16 20:17:31 +00:00
build [build] Move from the C++11 to the C++17 standard. 2021-03-19 15:29:57 +00:00
client Remove old annotated_steps buildbot scripts and dispatcher 2017-05-23 16:17:02 +02:00
docs Minor fixes to breaking change process 2021-01-15 21:44:22 +00:00
pkg [vm] Native effects 2021-04-09 16:45:13 +00:00
runtime [vm] Native effects 2021-04-09 16:45:13 +00:00
samples [native_extensions] Convert uri to path so that on Windows native extension loading works. 2021-04-01 03:22:35 +00:00
samples-dev/swarm Opt out some files from null safety. 2020-10-12 22:15:42 +00:00
samples_2 [native_extensions] Convert uri to path so that on Windows native extension loading works. 2021-04-01 03:22:35 +00:00
sdk [vm] Native effects 2021-04-09 16:45:13 +00:00
tests [vm] Native effects 2021-04-09 16:45:13 +00:00
third_party [wasm] Remove deprecated dart_enable_wasm flag. 2021-04-01 22:45:07 +00:00
tools [infra] Firestore: Resolve whole paths to avoid encoding of ':' 2021-04-09 04:43:31 +00:00
utils [test] Apply simarm64 status file entries to simarm64c. 2021-02-25 21:18:02 +00:00
.clang-format VM: Re-format to use at most one newline between functions 2017-07-13 08:08:37 -07:00
.gitattributes [web] rename suite dart2js -> web. 2021-02-04 23:11:32 +00:00
.gitconfig [infra] Add documentation to .gitconfig 2018-06-11 18:24:16 +00:00
.gitignore [vm] Remove traces of LLVM backend 2021-03-09 20:37:20 +00:00
.gn Starting work on full GN build 2016-09-23 07:47:36 -07:00
.mailmap fix my name in .mailmap 2018-09-11 01:45:52 +00:00
.packages In-line the package:stagehand templates into 'dart create'. 2021-03-25 18:05:09 +00:00
.style.yapf Mass format python with yapf 2019-08-05 20:34:31 +00:00
.vpython [infra] Add .vpython spec to fix gsutil on the bots (#31065) 2018-10-11 15:11:35 +00:00
AUTHORS [runtime/vm] ARM64: Support unaligned memory accesses for regex. 2019-10-15 20:11:40 +00:00
BUILD.gn [sdk] Add analysis_server.dart.snapshot to ARM SDKs. 2021-03-19 12:03:48 +00:00
CHANGELOG.md Change VM DateTime to-local-time computation to not fail for <1h changes. 2021-04-08 16:51:00 +00:00
codereview.settings Update codereview.settings to Gerrit (dart-review.googlesource.com) 2017-09-04 12:52:09 +00:00
CONTRIBUTING.md [doc] Updated dart.dev web repo link 2021-02-22 12:15:22 +00:00
DEPS [co19] Roll co19_2 to f7f583366396cb1457e58c9bfb6d6e53dc21d741 2021-04-09 11:49:32 +00:00
LICENSE Update LICENSE 2021-04-08 07:57:10 +00:00
PATENT_GRANT Rename patent file 2019-08-16 12:03:17 +00:00
PRESUBMIT.py Add gclient sync to package_config.json presubmit message 2021-02-12 01:44:47 +00:00
README.dart-sdk Add dart2native to sdk README 2020-01-20 09:32:58 +00:00
README.md Update README.md 2021-01-11 23:51:20 +00:00
sdk_args.gni [infra] Fix default path to git directory when running GN 2021-03-16 16:58:49 +00:00
WATCHLISTS Add myself to watch for tools/experimental_features.yaml changes. 2021-03-19 18:09:38 +00:00

Dart

A client-optimized language for fast apps on any platform

Dart is:

  • Optimized for UI: Develop with a programming language specialized around the needs of user interface creation.

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

  • Fast on all platforms: Compile to ARM & x64 machine code for mobile, desktop, and backend. Or compile to JavaScript for the web.

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.