languages/dart-sdk
languages/dart-sdk
1
0
Fork 0
mirror of https://github.com/dart-lang/sdk synced 2024-09-16 00:19:48 +00:00
Code Issues Packages Projects Releases Wiki Activity
70026 commits 11 branches 6011 tags 1.4 GiB
Dart 83.5%
C++ 14%
Python 0.8%
JavaScript 0.5%
HTML 0.4%
Other 0.6%
Find a file
Teagan Strickland bb24f98616 Revert "[vm/aot] Remove object wrapping of bare instructions for AOT snapshots." 
This reverts commit 7475c637c3.

Reason for revert: Breakage on simarm_x64 (and thus arm_x64)

Original change's description:
> [vm/aot] Remove object wrapping of bare instructions for AOT snapshots.
> 
> Now, when writing an AOT snapshot in bare instructions mode, only
> the actual instructions in the RawInstructions payload are serialized
> instead of the entire RawInstructions object.
> 
> Since there are no longer RawInstructions objects in these AOT
> snapshots, we also change how Code objects are serialized. Instead
> of just containing a reference to the RawInstructions object, we
> serialize two pieces of information: where the instructions
> payload for this Code object begins and whether there was a single
> entry for the instructions payload. (To save space, the single
> entry bit is serialized as the low order bit of the unchecked
> offset, which was already being serialized).
> 
> While we also need the length of the instructions payload, we
> approximate it for all but the last Code object by subtracting
> the next Code object's payload start from this Code object's
> payload start. For the last Code object, we assume it extends
> to the end of the instructions image.
> 
> Changes on flutter gallery in release mode:
> armv7: instructions size -2.66%, total size -1.68%
> armv8: instructions size -5.81%, total size -3.49%
> 
> Fixes https://github.com/dart-lang/sdk/issues/38451.
> 
> Change-Id: Ia458e8d99bae18f5c3b6e849df2519027f06f574
> Cq-Include-Trybots: luci.dart.try:vm-kernel-precomp-linux-release-x64-try,vm-kernel-precomp-linux-release-simarm-try,vm-kernel-precomp-linux-release-simarm64-try,vm-kernel-precomp-linux-release-simarm_x64-try,vm-kernel-precomp-android-release-arm64-try,vm-kernel-precomp-android-release-arm_x64-try,vm-kernel-precomp-mac-release-simarm64-try,vm-kernel-precomp-win-release-x64-try
> Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/131067
> Commit-Queue: Teagan Strickland <sstrickl@google.com>
> Reviewed-by: Martin Kustermann <kustermann@google.com>

TBR=kustermann@google.com,rmacnak@google.com,sstrickl@google.com

Change-Id: If2c8ca6b0993211b2509b275af7ff11a8fa2baa3
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Cq-Include-Trybots: luci.dart.try:vm-kernel-precomp-linux-release-x64-try, vm-kernel-precomp-linux-release-simarm-try, vm-kernel-precomp-linux-release-simarm64-try, vm-kernel-precomp-linux-release-simarm_x64-try, vm-kernel-precomp-android-release-arm64-try, vm-kernel-precomp-android-release-arm_x64-try, vm-kernel-precomp-mac-release-simarm64-try, vm-kernel-precomp-win-release-x64-try
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/134322
Reviewed-by: Teagan Strickland <sstrickl@google.com>
Commit-Queue: Teagan Strickland <sstrickl@google.com>
2020-02-04 17:32:28 +00:00
.github Update new issue template. 2019-04-30 18:14:21 +00:00
benchmarks [benchmarks] Add typed data copy benchmark 2020-01-24 22:04:35 +00:00
build [vm] Enable Dart VM to run in QEMU user-mode emulation for ARM. 2019-11-18 16:58:53 +00:00
client
docs Update breaking-changes.md 2020-01-06 13:14:45 +00:00
pkg Extract test for CASE_EXPRESSION_TYPE_IMPLEMENTS_EQUALS. 2020-02-04 17:05:38 +00:00
runtime Revert "[vm/aot] Remove object wrapping of bare instructions for AOT snapshots." 2020-02-04 17:32:28 +00:00
samples [vm/ffi] Test alignment of small stack arguments 2020-01-14 10:50:25 +00:00
samples-dev Mass format python with yapf 2019-08-05 20:34:31 +00:00
sdk [dart:io] Backport semantic changes from the dart:io NNBD migration. 2020-02-03 15:10:45 +00:00
sdk_nnbd [VM/library] Fix signature of waitFor to account for potential null return value. 2020-02-04 16:55:08 +00:00
tests [test] Run late field tests in optimised mode 2020-02-04 16:51:38 +00:00
third_party Use source-maps in test runner to expand JavaScript stack traces. 2020-01-24 20:00:13 +00:00
tools Change nnbd_src files to be null-safe 2020-02-04 01:57:39 +00:00
utils Do not opt-in to NNBD when building application snapshots for kernel service and other tools like dartjs, dart analyzer etc. We should enable this only when all the tools are ready to opt-in. 2020-01-28 19:33:00 +00:00
.clang-format
.gitattributes [test] Fork mirrors tests. 2020-01-22 18:46:23 +00:00
.gitconfig [infra] Add documentation to .gitconfig 2018-06-11 18:24:16 +00:00
.gitignore Cleanup- remove the Dart Editor directories from the .gitignore file 2020-01-10 00:50:06 +00:00
.gn
.mailmap fix my name in .mailmap 2018-09-11 01:45:52 +00:00
.packages [dartdev] add a dartdev 'create' command 2020-02-02 02:23:13 +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 Add a script and target to run dartfix 2019-10-14 15:50:21 +00:00
CHANGELOG.md [dart:io] Backport semantic changes from the dart:io NNBD migration. 2020-02-03 15:10:45 +00:00
codereview.settings
CONTRIBUTING.md Link from CONTRIBUTING to the code of conduct. 2020-01-10 08:12:01 +00:00
DEPS [dartdev] add a dartdev 'create' command 2020-02-02 02:23:13 +00:00
LICENSE Remove third_party licenses from LICENSE 2019-08-21 07:43:34 +00:00
PATENT_GRANT Rename patent file 2019-08-16 12:03:17 +00:00
PRESUBMIT.py Add some minimal presubmit checks to keep forked SDK tests in sync. 2020-01-16 18:50:27 +00:00
README.dart-sdk Add dart2native to sdk README 2020-01-20 09:32:58 +00:00
README.md Update README.md 2019-08-16 12:24:02 +00:00
sdk_args.gni Support building under git-worktree 2019-12-19 23:12:53 +00:00
WATCHLISTS Auto-CC dart2js on changes to the js_runtime sdk. 2019-09-12 18:17:38 +00:00

README.md

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 has 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 the dart.dev to learn more about the language, tools, getting started, and more.

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

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.