DART_PRECOMPILER define is used when building gen_snapshot and run_vm_tests. Both gen_snapshot and run_vm_tests support AOT and JIT modes, selected by FLAG_precompiled_mode. Before this change, DART_PRECOMPILER always used AOT exception handling (catch_entry_moves_maps). This works fine even if code is generated in JIT mode, but it is not compatible with JIT exception handling. run_vm_tests uses kernel service which comes from app-jit snapshot (on x64), which is generated in JIT mode with JIT exception handling. This causes crash if there is a Dart exception in kernel service. This change adjusts exception handling in DART_PRECOMPILER mode to support both AOT and JIT implementations and select one using FLAG_precompiled_mode. Fixes https://github.com/dart-lang/sdk/issues/39388 Change-Id: I6c9ce05552a98bd4eeaea18c082a98e9bdbe9460 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/125302 Reviewed-by: Ryan Macnak <rmacnak@google.com> Reviewed-by: Martin Kustermann <kustermann@google.com> Commit-Queue: Alexander Markov <alexmarkov@google.com>
Dart
A client-optimized language for fast apps on any platform
Dart is:
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Optimized for UI: Develop with a programming language specialized around the needs of user interface creation
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Productive: Make changes iteratively: use hot reload to see the result instantly in your running app
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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:
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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.
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Dart Web: For programs targeting the web, Dart Web includes both a development time compiler (dartdevc) and a production time compiler (dart2js).
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.