Fix a potential race between didChange
and didOpen
#13209
Merged
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Fixes a potential (probably rare?) issue where it's possible that a call to
onDidChangeTextDocument
might happen before a call toonDidOpenTextDocument
, due to didOpen being delayed (processed by the protocol filter, after prior messages in queue). This could result the file's version inopenFileVersions
becoming incorrect (though would be corrected by subsequent edits).onDidOpenTextDocument
andonDidChangeTextDocument
primarily maintainopenFileVersions
, and update UI state. This change callsonDidOpenTextDocument
using a synchronous handler, instead of being processed by the protocol filter, ensuring no awaiting or prior queue work will delay it, similar to what we were already doing withonDidChangeTextDocument
.Having
openFileVersions
kept as closely in sync as possible with the editor ensures we properly discard results for operations that shouldn't be applied if the document has since changed.