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Stephen Adams 7933cd741d [dart2js] Prevent type expressions being hoisted above guards
Use a pinned HTypeKnown on the receiver of the HInstanceEnvironment to
pin the type expression. When the the receiver has a wider type that
is legal for the type expression, this keeps the type expression at a
location where it is valid. Type expressions can still be hoisted if
the HTypeKnown is redundant and optimized away.

Bug: #54329
Change-Id: Iae378f9d517e3e22deca198195cad9811cf37772
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/344841
Reviewed-by: Mayank Patke <fishythefish@google.com>
Commit-Queue: Stephen Adams <sra@google.com>
2024-01-05 19:03:29 +00:00
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pkg [dart2js] Prevent type expressions being hoisted above guards 2024-01-05 19:03:29 +00:00
runtime [pkg/vm] Create @pragma("vm:platform-const-if", <cond>) annotation 2024-01-04 14:44:29 +00:00
samples
sdk [dart2wasm] Use [WasmArray]s for type arguments in dynamic calls 2024-01-05 15:40:40 +00:00
tests [dart2js] Prevent type expressions being hoisted above guards 2024-01-05 19:03:29 +00:00
third_party
tools Bump version to 3.4. 2024-01-04 16:15:09 +00:00
utils [gardening] Fix simriscv32 build 2023-12-21 12:39:54 +00:00
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CHANGELOG.md Bump version to 3.4. 2024-01-04 16:15:09 +00:00
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CONTRIBUTING.md
DEPS [co19] Roll co19 to cd23849a5bf84a73466b5107e23bb04cf3d9b38a 2024-01-05 11:13:26 +00:00
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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.