1b8f4ac1e7
Eliminate numerous type checks not needed in strong mode. Use private nullability annotations instead of inline JS to mark known non-null variables, and to make the compiler generate null checks for null checked variables. Use nullability annotations and code refactoring to remove redundant null checks and to move checks out of loops. BUG= R=jmesserly@google.com Review-Url: https://codereview.chromium.org/2994203002 .
Tools for processing the Dart SDK
patch_sdk.dart
This script combines:
tool/input_sdk/lib/...
tool/input_sdk/patch/...
tool/input_sdk/private/...
and produces the merged SDK sources in:
gen/patched_sdk/...
The result has all "external" keywords replaced with the @patch implementations.
Generally local edits should be to input_sdk/patch and input_sdk/private,
as those two directories are specific to DDC. input_sdk/lib should represent
unmodified SDK sources to the maximum extent possible. Currently there are
slight edits to the type annotations in some cases.
See patch_sdk.dart for more information.
sdk_version_check.dart
Asserts that the Dart VM is at least a particular semantic version. It returns an exit code to make it easy to integrate with shell scripts.