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yoff 6c03194092 Python: add new shared-CFG-backed control flow graph facade (Cfg)

Adds the public facade on top of the AstNodeImpl adapter from the
previous commit. Re-exposes the same API surface as
semmle/python/Flow.qll (ControlFlowNode, CallNode, BasicBlock,
NameNode, DefinitionNode, CompareNode, ...), backed by the shared
codeql.controlflow.ControlFlowGraph library.

- semmle.python.controlflow.internal.Cfg — public facade.
- ControlFlow/store-load/* — basic store/load coverage via the facade.

The new CFG library is added additively: it has zero callers in lib/
and src/, and the legacy CFG in semmle/python/Flow.qll remains the
default. Dataflow, SSA, and production query migration land in
follow-up PRs.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

2026-06-24 08:15:45 +00:00

released

Fix changelog copy errors in change-notes and CHANGELOG.md files (codeql-cli-2.25.6)

2026-06-11 22:45:33 +02:00

2026-05-19-add-shared-cfg.md

Python: add new shared-CFG-backed control flow graph facade (Cfg)

2026-06-24 08:15:45 +00:00

2026-05-19-deprecate-getAFlowNode.md

Python: deprecate AstNode.getAFlowNode() and rewrite internal callers

2026-06-22 14:55:19 +02:00

2026-05-28-remove-imprecise-containter-steps.md

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