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Update docs/codeql/codeql-language-guides/migrating-javascript-dataflow-queries.rst

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Co-authored-by: Erik Krogh Kristensen <erik-krogh@github.com>
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Asger F
2025-01-08 12:26:42 +01:00
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docs/codeql/codeql-language-guides/migrating-javascript-dataflow-queries.rst
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@@ -207,7 +207,7 @@ There's an important change from the old data flow library when using flow state
When using ``TaintTracking::GlobalWithState``, all flow states can propagate along taint steps.
In the old data flow library, only the ``taint`` flow label could propagate along taint steps.
A straight-forward translation of such a query may therefore result in new flow paths being found, which might be unexpected.
A straightforward translation of such a query may therefore result in new flow paths being found, which might be unexpected.
To emulate the old behavior, use ``DataFlow::GlobalWithState`` instead of ``TaintTracking::GlobalWithState``,
and manually add taint steps using ``isAdditionalFlowStep``. The predicate ``TaintTracking::defaultTaintStep`` can be used to access to the set of taint steps.