CodeQL library for Python
codeql/python-all 2.1.3-dev (changelog, source)
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Predicate signature InputSig::compatibleTypes

Holds if t1 and t2 are compatible types.

This predicate must be symmetric and reflexive.

This predicate is used in the following way: If the data flow library tracks an object from node n1 to n2 using solely value-preserving steps, then it will check that the types of n1 and n2 are compatible. If they are not, then flow will be blocked.

signature predicate compatibleTypes(DataFlowType t1, DataFlowType t2)