[edit] Fix racy access to SemanticInfo #27948
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Specifically, if the document was re-opened, we would drop the reference and the call to readSemanticInfo could use-after-free the array of diagnostics. This manifested as a very rare crash while testing sourcekit-lsp.
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@swift-ci please test |
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@swift-ci please test macOS |
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@swift-ci please test macOS |
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@swift-ci please test macOS |
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@swift-ci please test macOS |
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@swift-ci please test macOS |
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@swift-ci please test macOS |
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Specifically, if the document was re-opened, we would drop the reference
and the call to readSemanticInfo could use-after-free the array of
diagnostics. This manifested as a very rare crash while testing
sourcekit-lsp.
rdar://problem/56420572