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Paul Berry 40a1ae7fc0 Add parser support for use of new as a constructor name.
The new "constructor tearoffs" feature includes the ability to use the
`new` keyword in a place where an identifier is expected, and that
identifier could denote a constructor name.  We handle this by
replacing the `new` keyword token with an identifier token whose
identifier string is `new` (this should ease the burden on the
implementations, since they are already set up to handle constructor
names that are identifiers).

Since all such situations follow a `.`, and `new` was never previously
allowed after a `.`, the parser treats `new` as an identifier in any
situation where it could possibly refer to a constructor, regardless
of whether the "constructor tearoffs" feature is enabled.  (This
should allow for easier error recovery in the situation where the user
tries to use the feature with a language feature that does not support
it).  It is up to the client to report an error if the feature is
disabled.

In this CL, I've implemented logic for the analyzer to choose whether
to report an error based on whether the feature is enabled.  I've
implemented logic for the CFE to report the error unconditionally.

Bug: https://github.com/dart-lang/sdk/issues/46020, https://github.com/dart-lang/sdk/issues/46044
Change-Id: I36a496688400d2d9f699dd42be4d0ba620cda244
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/201961
Commit-Queue: Paul Berry <paulberry@google.com>
Reviewed-by: Jens Johansen <jensj@google.com>
Reviewed-by: Konstantin Shcheglov <scheglov@google.com>
2021-06-02 18:02:35 +00:00
.dart_tool Revert "Roll pub" 2021-05-31 14:36:24 +00:00
.github "dartfmt" -> "dart format" in issue template. 2021-05-19 00:39:43 +00:00
benchmarks [ benchmark ] Use '.' instead of '_' to represent sub-benchmarks in SDKArtifactSizes 2021-05-27 18:14:14 +00:00
build Reland "[infra] Update to a clang with libc++.a for Mac ARM64." 2021-05-24 21:31:20 +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 Add parser support for use of new as a constructor name. 2021-06-02 18:02:35 +00:00
runtime [vm/ffi] Add providesSymbol to DynamicLibrary 2021-06-02 16:01:43 +00:00
samples [vm/ffi] Improve Pool samples 2 and rename to Arena 2021-05-25 15:01:46 +00:00
samples-dev/swarm [infra] Migrate scripts to python3 2021-04-15 10:10:20 +00:00
samples_2 [vm/ffi] Improve Pool samples 2 and rename to Arena 2021-05-25 15:01:46 +00:00
sdk [vm/ffi] Add providesSymbol to DynamicLibrary 2021-06-02 16:01:43 +00:00
tests [vm/ffi] Add providesSymbol to DynamicLibrary 2021-06-02 16:01:43 +00:00
third_party Removed 7zip from Windows distribution of the Dart SDK 2021-05-12 14:50:50 +00:00
tools [sdk] Update checked-in SDKs to 2.13.1 2021-06-02 09:29:45 +00:00
utils Revert "Move most of the code from u/b/kernel_worker.dart to p/frontend_server" 2021-06-01 19:29:54 +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 [infra] Migrate scripts to python3 2021-04-15 10:10:20 +00:00
.mailmap fix my name in .mailmap 2018-09-11 01:45:52 +00:00
.packages add package:lints to the sdk DEPS 2021-05-17 19:53:22 +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 Trim abstract unix socket path length 2021-05-27 21:50:24 +00:00
CHANGELOG.md [vm/ffi] Add providesSymbol to DynamicLibrary 2021-06-02 16:01:43 +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 [sdk] Update checked-in SDKs to 2.13.1 2021-06-02 09:29:45 +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.