| commit | c2e15cff6d1d63f94772ecf41f32f56656ed49db | [log] [tgz] |
|---|---|---|
| author | Daco Harkes <dacoharkes@google.com> | Sat Jan 27 09:28:40 2024 +0000 |
| committer | Commit Queue <dart-scoped@luci-project-accounts.iam.gserviceaccount.com> | Sat Jan 27 09:28:40 2024 +0000 |
| tree | 181ae67d0f17b701b217ec42e1639cde10ac0d1f | |
| parent | b6647fd9ab2d3308a5894cc0e70d7da20d413082 [diff] |
[vm/ffi] Introduce `Struct.create` and `Union.create` Structs and unions can now be created from an existing typed data with the new `create` methods. The typed data argument to these `create` methods is optional. If the typed data argument is omitted, a new typed data of the right size will be allocated. Compound field reads and writes are unchecked. (These are TypedDataBase loads and stores, rather than TypedData loads and stores. And Pointers have no byte length.) Therefore the `create` method taking existing TypedData objects check whether the length in bytes it at least the size of the compound. TEST=pkg/analyzer/test/src/diagnostics/creation_of_struct_or_union_test.dart TEST=pkg/vm/testcases/transformations/ffi/struct_typed_data.dart TEST=tests/ffi/structs_typed_data_test.dart TEST=tests/ffi/vmspecific_static_checks_test.dart Closes: https://github.com/dart-lang/sdk/issues/45697 Closes: https://github.com/dart-lang/sdk/issues/53418 Change-Id: If12c56106c7ca56611bccfacbc1c680c2d4ce407 CoreLibraryReviewExempt: FFI is a VM and WASM only feature. Cq-Include-Trybots: luci.dart.try:vm-aot-android-release-arm64c-try,vm-aot-android-release-arm_x64-try,vm-aot-linux-debug-x64-try,vm-aot-linux-debug-x64c-try,vm-aot-mac-release-arm64-try,vm-aot-mac-release-x64-try,vm-aot-obfuscate-linux-release-x64-try,vm-aot-optimization-level-linux-release-x64-try,vm-aot-win-debug-arm64-try,vm-aot-win-debug-x64c-try,vm-aot-win-release-x64-try,vm-appjit-linux-debug-x64-try,vm-asan-linux-release-x64-try,vm-checked-mac-release-arm64-try,vm-eager-optimization-linux-release-ia32-try,vm-eager-optimization-linux-release-x64-try,vm-ffi-android-debug-arm-try,vm-ffi-android-debug-arm64c-try,vm-ffi-qemu-linux-release-arm-try,vm-ffi-qemu-linux-release-riscv64-try,vm-fuchsia-release-x64-try,vm-kernel-linux-debug-x64-try,vm-kernel-precomp-linux-release-x64-try,vm-linux-debug-ia32-try,vm-linux-debug-x64-try,vm-linux-debug-x64c-try,vm-mac-debug-arm64-try,vm-mac-debug-x64-try,vm-msan-linux-release-x64-try,vm-reload-linux-debug-x64-try,vm-reload-rollback-linux-debug-x64-try,vm-ubsan-linux-release-x64-try,vm-win-debug-arm64-try,vm-win-debug-x64-try,vm-win-debug-x64c-try,vm-win-release-ia32-try Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/342763 Commit-Queue: Daco Harkes <dacoharkes@google.com> Reviewed-by: Johnni Winther <johnniwinther@google.com> Reviewed-by: Lasse Nielsen <lrn@google.com> Reviewed-by: Martin Kustermann <kustermann@google.com>
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 is free and open source.
See LICENSE and PATENT_GRANT.
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).
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.
The easiest way to contribute to Dart is to file issues.
You can also contribute patches, as described in Contributing.