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Author SHA1 Message Date
Paul Berry 38cab10852 Patterns parsing: track when variable patterns are in an assignment context. 
Variable patterns behave so differently inside a patternAssignment
that we may want to represent them using different AST nodes inside
the analyzer/CFE.  This change adds a boolean flag allowing the
implementation to know what kind of variable pattern it's looking at
when parsing occurs.

Bug: https://github.com/dart-lang/sdk/issues/50035
Change-Id: I60adf2865bbe24f85b72a79b1360833bf823bd67
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/273829
Reviewed-by: Konstantin Shcheglov <scheglov@google.com>
Commit-Queue: Paul Berry <paulberry@google.com>
Reviewed-by: Jens Johansen <jensj@google.com>
 2022-12-07 22:45:40 +00:00
Paul Berry b0c705e4bd Set mayParseFunctionExpressions properly during switch expression parsing. 
We need to prohibit function expressions during guard clauses in
switch expressions, otherwise the `=>` might be misinterpreted.

Fixes #50591.

Bug: https://github.com/dart-lang/sdk/issues/50591, https://github.com/dart-lang/language/issues/2672
Change-Id: Ie5703ac7049557798b19778281429e8a591cf09f
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/273020
Reviewed-by: Konstantin Shcheglov <scheglov@google.com>
Commit-Queue: Paul Berry <paulberry@google.com>
 2022-12-01 18:57:33 +00:00