| commit | fa274ec0591d36cecb0852985dda159994933225 | [log] [tgz] |
|---|---|---|
| author | Paul Berry <paulberry@google.com> | Wed May 01 12:42:14 2019 +0000 |
| committer | commit-bot@chromium.org <commit-bot@chromium.org> | Wed May 01 12:42:14 2019 +0000 |
| tree | cd4825ff88777d6fba5f94ff95d69f4719a93072 | |
| parent | 407378879bfd689d8a91d27e6ad8885fa0c6034f [diff] |
Make each NullabilityNode track those nodes that are downstream of it. This allows more migration tool unit tests to be simplified so that they don't have to refer to ConstraintVariable objects directly anymore. In order to make this work, a few other changes were also necessary: - Make a derived class for NullabilityNodes that arise from conditional expressions. - Add a getter to reveal whether a NullabilityNode is known a priori to be non-nullable. Change-Id: I8a68b627ce9e807a50d371369985f52848903a2f Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/100922 Commit-Queue: Paul Berry <paulberry@google.com> Reviewed-by: Brian Wilkerson <brianwilkerson@google.com> Reviewed-by: Konstantin Shcheglov <scheglov@google.com>
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