| commit | af1dbdf13b30f465e686d26b62d78bd60bbca26a | [log] [tgz] |
|---|---|---|
| author | Paul Berry <paulberry@google.com> | Tue Apr 30 17:21:20 2019 +0000 |
| committer | commit-bot@chromium.org <commit-bot@chromium.org> | Tue Apr 30 17:21:20 2019 +0000 |
| tree | 3e8e16f2b37d0af7fdea2966844d7b5970f4ded4 | |
| parent | 5152269d2891785f7c8d4f0c760dc945de466de8 [diff] |
Change representation of ExpressionChecks. Previously, this class held on to a ConstraintVariable indicating whether a null check should be inserted. Now it holds on to NullabilityNodes indicating whether the source and destination of an assignment are nullable, and it can infer from this whether a null check needs to be inserted. This paves the way for removing the old constraint solving logic in favor of a more direct nullability propagation approach using nullability nodes. Change-Id: I96b95c400ed40bd12f9c9dcbb4c09a69849e51c5 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/100885 Reviewed-by: Brian Wilkerson <brianwilkerson@google.com> Reviewed-by: Konstantin Shcheglov <scheglov@google.com> Commit-Queue: Paul Berry <paulberry@google.com>
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