CodeQL library for Python
codeql/python-all 4.0.5-dev (changelog, source)
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Predicate Make::SsaDefReachesNew::ssaDefReachesReadWithinBlock

Holds if the SSA definition of v at def reaches index i in its own basic block bb, without crossing another SSA definition of v.

Import path

import codeql.ssa.Ssa
predicate ssaDefReachesReadWithinBlock(SourceVariable v, Definition def, BasicBlock bb, int i)