[ASTScope] Allow try in unfolded sequence to cover following elements
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hamishknight
requested review from
hborla,
xedin,
ahoppen,
bnbarham,
CodaFi,
DougGregor,
rintaro and
slavapestov
as code owners
Use this to query for `try`-like expressions when it comes to binary operator folding.
Rather than fixing-up in the parser, adjust the ASTScope logic such that a `try` element in a SequenceExpr is considered as covering all elements to the right of it. Cases where this isn't true are invalid, and will be diagnosed during sequence folding. e.g: ``` 0 * try foo() + bar() _ = try foo() ~~~ bar() // Assuming `~~~` has lower precedence than `=` ``` This ensures we correctly handle `try` in assignment sequences, and allows ASTGen to get the behavior for free. rdar://132872235
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@swift-ci please test |
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@swift-ci please test source compatibility |
DougGregor
approved these changes
Apr 3, 2025
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Rather than fixing-up in the parser, adjust the ASTScope logic such that a
tryelement in a SequenceExpr is considered as covering all elements to the right of it. Cases where this isn't true are invalid, and will be diagnosed during sequence folding. e.g:This ensures we correctly handle
tryin assignment sequences, and allows ASTGen to get the behavior for free.rdar://132872235