add sdk_packages.yaml file (describes SDK vendored package locations) delete old macro code in _fe_analyzer_shared, move tests/benchmarks adds a top level `pkg` directory to the Dart SDK, which is where vendored packages live BUG: https://github.com/dart-lang/sdk/issues/54976 Change-Id: Ib3503a27fb5644fa8a39ab5a3e5b568df330cfd6 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/359040 Auto-Submit: Jake Macdonald <jakemac@google.com> Reviewed-by: Konstantin Shcheglov <scheglov@google.com> Reviewed-by: Jonas Termansen <sortie@google.com> Reviewed-by: Johnni Winther <johnniwinther@google.com> Reviewed-by: Bob Nystrom <rnystrom@google.com> Commit-Queue: Jake Macdonald <jakemac@google.com> Reviewed-by: Devon Carew <devoncarew@google.com>
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☠☠ Warning: This package is experimental and may not be available in a future version of Dart. ☠☠
This package is for macro authors, and exposes the APIs necessary to write
a macro. Specifically, it exports the private _macros SDK vendored package.
Macro authors
Macro authors can use normal constraints on this package, and should only import
the package:macros/macros.dart file.
Note that the versions of this package are tied directly to your SDK version, so you won't be able to get new feature releases without updating your SDK.
Compilers and tools
This package also exposes some "private" sources (under lib/src), intended only for use by compilers and tools, in order to bootstrap and execute macros.
When depending on these "private" sources, a more narrow constraint should be
used, which constraints to feature releases (which means patch versions until
such time as this package goes to 1.0.0). For example,
macros: ">=0.1.1 <0.1.2".