CodeQL library for C#
codeql/csharp-all 0.7.4 ( changelog , source )
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Member predicate Guard :: controlsNode

Holds if cfn is guarded by this expression having value v, where sub is a sub expression of this expression that is structurally equal to the expression belonging to cfn.

In case cfn or sub access an SSA variable in their left-most qualifier, then so must the other (accessing the same SSA variable).

predicate controlsNode ( ElementNode cfn , AccessOrCallExpr sub , AbstractValue v )