JS: recognize tagged template literals as DataFlow::CallNode
#14405
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Motivated by two recent external contributions that noticed the lack of call-edges to/from tagged template literals. (First, second).
The implementation is fairly straight forward.
The constant template elements of the tagged template literal are not modeled (the
foo
andbar
infunc`foo${exp)bar`;
)There was a performance issue, which was fixed by adding some more
cache
.An evaluation shows neutral performance and some new call-edges and sinks (new sinks from recognizing more DOM nodes).