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codeql/python/ql/test/library-tests/ControlFlow/evaluation-order/BasicBlockAnnotationGap.ql
Taus edfbaa5ceb Python: Add some CFG-validation queries
These use the annotated, self-verifying test files to check various
consistency requirements.

Some of these may be expressing the same thing in different ways, but
it's fairly cheap to keep them around, so I have not attempted to
produce a minimal set of queries for this.
2026-04-28 15:38:04 +00:00

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/**
* Checks that within a basic block, if a node is annotated then its
* successor is also annotated (or excluded). A gap in annotations
* within a basic block indicates a missing annotation, since there
* are no branches to justify the gap.
*
* Nodes with exceptional successors are excluded, as the exception
* edge leaves the basic block and the normal successor may be dead.
*/
import TimerUtils
import OldCfgImpl
private module Utils = EvalOrderCfgUtils<OldCfg>;
private import Utils
private import Utils::CfgTests
from TimerCfgNode a, CfgNode succ
where basicBlockAnnotationGap(a, succ)
select a, "Annotated node followed by unannotated $@ in the same basic block", succ,
succ.getNode().toString()