|author||Chloe Stefantsova <firstname.lastname@example.org>||Thu Jan 13 11:22:16 2022 +0000|
|committer||Commit Bot <email@example.com>||Thu Jan 13 11:22:16 2022 +0000|
[cfe] Fail early on some subtype checks instead of crashing Some subtype tests are crashing due to infinite recursion. It is a known issue. An example of such test is FutureOr<T> against FutureOr<S> where T and S are type variables declared as T extends FutureOr<T> and S extends FutureOr<S>. In some cases it's possible to fail early instead of crashing, for exmaple, by checking Future-branch of the left-hand side first before checking the type argumennt of FutureOr which would lead to the infinite recursion. This CL does that, allowing some more type checks to pass instead of crashing. Change-Id: I075aa65522510db1a97ac2a8de7278a3ce3f400c Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/227820 Reviewed-by: Johnni Winther <firstname.lastname@example.org> Commit-Queue: Chloe Stefantsova <email@example.com>
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