Johnni Winther
8510f27d37
This CL changes the way dart: libraries are considered supported when used in conditional imports or bool.fromEnvironment constant using the "dart.library.*" values. Library nodes now has an isUnsupported flag which is set according to the "supported" property in the libraries specification. Furthermore the Target now supplies a DartLibrarySupport interface that allows targets to override whether dart: libraries are unsupported. This allows the JIT/AOT to use the same platform file but still consider dart:mirrors unsupported in AOT mode, and dart2js to consider the internal library `dart:_dart2js_runtime_metrics` supported. Furthermore, the internal handling is changed so that condition imports and bool.fromEnvironments constants are computed through the same logic for "dart.library.*" values, avoiding the need for passing these values through the environment. TEST=pkg/front_end/testcases/general/supported_libraries/main Closes https://github.com/dart-lang/sdk/issues/48057 Closes https://github.com/dart-lang/sdk/issues/47814 Closes https://github.com/dart-lang/sdk/issues/47243 Closes https://github.com/dart-lang/sdk/issues/32657 Closes https://github.com/dart-lang/sdk/issues/36460 Change-Id: Ie8f8dff99167de64ced51b71d89918bf0f3bbd13 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/227020 Reviewed-by: Sigmund Cherem <sigmund@google.com> Reviewed-by: Alexander Markov <alexmarkov@google.com> Reviewed-by: Chloe Stefantsova <cstefantsova@google.com>
Conversion to a textual format.
The text format is currently very ad-hoc and there is no conversion back, but it's a pleasant way to view the IR.