2da70a8d9e
Currently hash code for a closure is the hash code of it's runtime type.
This causes a lot hash collisions in some apps and cause performance
issues.
With this patch we now use captured objects in closures when calculating
hash codes.
The hash codes are now:
- For tear-offs:
mix(receiver hash, closure runtime type hash)
- For instantiations:
mix(instantiated closure hash,
hashes of captured types)
Note that an instantiation can be of a tear-off, in which case
"instantiated closure hash" will calculate the tear-off hash as above.
- For others (function literals, static functions), the hash is the
identity hash.
Fixes #54912.
CoreLibraryReviewExempt: Mark private corelib function as entry-point in Wasm
Change-Id: I6a123fdc690237f543bb8bf832f0f8119d013a55
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/353162
Reviewed-by: Martin Kustermann <kustermann@google.com>
Commit-Queue: Ömer Ağacan <omersa@google.com>
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| benchmarks | ||
| build | ||
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| pkg | ||
| runtime | ||
| samples | ||
| sdk | ||
| tests | ||
| third_party | ||
| tools | ||
| utils | ||
| .clang-format | ||
| .gitattributes | ||
| .gitconfig | ||
| .gitignore | ||
| .gn | ||
| .mailmap | ||
| .style.yapf | ||
| AUTHORS | ||
| BUILD.gn | ||
| CHANGELOG.md | ||
| codereview.settings | ||
| CONTRIBUTING.md | ||
| DEPS | ||
| LICENSE | ||
| OWNERS | ||
| PATENT_GRANT | ||
| PRESUBMIT.py | ||
| README.dart-sdk | ||
| README.md | ||
| sdk.code-workspace | ||
| sdk_args.gni | ||
| SECURITY.md | ||
| WATCHLISTS | ||
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).
License & patents
Dart is free and open source.
See LICENSE and PATENT_GRANT.
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Visit dart.dev to learn more about the language, tools, and to find codelabs.
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There are more documents on our wiki.
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