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The
ContextArray
is used to store contexts of each ranges in the source code for user interactions including completions. We found theContextArray
related operations take time, while it is essentially unnecessary because we only need the context for given cursor position.This PR removes all of the
ContextArray
related operations and introducesCursorContext
which stores context around the cursor.The result is not huge. It seems this PR improves the execution performance ~5%.