CodeQL library for Swift
codeql/swift-all 3.0.1-dev (changelog, source)
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Predicate Make::SsaDefReaches::lastSsaRefExt

Holds if the reference to def at index i in basic block bb is the last reference to v inside bb.

Import path

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