yoff 8f6c24678f Python: update dataflow tests for new CFG + shared SSA
Test-side changes accompanying the dataflow migration:

  * Test queries (.ql) and shared test harness (TestSummaries,
    TestTaintLib) qualify CFG / SSA types with Cfg:: / SsaImpl::,
    bridge via AST (Name, Call, ...) instead of legacy NameNode /
    CallNode, and switch GlobalSsaVariable / EssaVariable usages
    to the new adapter API.

  * .expected files updated for legitimate precision and toString
    changes:
      - phi-node def-use edges newly exposed in def_use_counts.
      - scope-exit synthetic use surfaces one extra implicit use
        in use-use-counts.
      - For [empty]/[non-empty] outcome rows added in
        EnclosingCallable.
      - SsaSourceVariable / Global Variable label cosmetics
        normalised throughout.

  * Inline annotations:
      - typetracking/test.py: removed MISSING:tracked on lines
        93/95 (now found), added SPURIOUS:tracked on line 108
        (decorator over-reach).
      - global-flow/test.py: added SPURIOUS writes=g_mod on line
        20 (correctly reports immediately-overwritten write).
      - tainttracking/customSanitizer/test.py: marked
        try/except: ensure_tainted(s) cases as MISSING: tainted
        (no-raise CFG abstraction does not connect try body to
        except body).
      - coverage/test.py: marked
        SINK(return_from_inner_scope([])) as
        MISSING: flow=... pending closer investigation.

  * regression/{dataflow,custom_dataflow}.expected: accept two
    if/else cond-correlation over-reaches (documented limitation;
    same imprecision applies under legacy semantics by design).

After this change the dataflow library-tests stand at 62 of 64
passing; the two remaining failures are tracked under the
ImportStarRefinement workstream.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
2026-05-28 21:09:47 +00:00
2026-05-06 08:39:41 +02:00
2022-10-20 08:21:02 -04:00
2026-03-16 08:51:51 +01:00
2026-05-22 11:02:30 +00:00
2026-05-27 21:27:09 +02:00
2026-02-10 13:44:04 +01:00
2018-09-23 16:24:31 -07:00
2025-09-25 14:03:39 +01:00
2026-05-08 13:41:45 +00:00
2022-04-12 12:40:59 +02:00
2024-05-07 13:09:08 +01:00

CodeQL

This open source repository contains the standard CodeQL libraries and queries that power GitHub Advanced Security and the other application security products that GitHub makes available to its customers worldwide.

How do I learn CodeQL and run queries?

There is extensive documentation about the CodeQL language, writing CodeQL using the CodeQL extension for Visual Studio Code and using the CodeQL CLI.

Contributing

We welcome contributions to our standard library and standard checks. Do you have an idea for a new check, or how to improve an existing query? Then please go ahead and open a pull request! Before you do, though, please take the time to read our contributing guidelines. You can also consult our style guides to learn how to format your code for consistency and clarity, how to write query metadata, and how to write query help documentation for your query.

For information on contributing to CodeQL documentation, see the "contributing guide" for docs.

License

The code in this repository is licensed under the MIT License by GitHub.

The CodeQL CLI (including the CodeQL engine) is hosted in a different repository and is licensed separately. If you'd like to use the CodeQL CLI to analyze closed-source code, you will need a separate commercial license; please contact us for further help.

Visual Studio Code integration

If you use Visual Studio Code to work in this repository, there are a few integration features to make development easier.

CodeQL for Visual Studio Code

You can install the CodeQL for Visual Studio Code extension to get syntax highlighting, IntelliSense, and code navigation for the QL language, as well as unit test support for testing CodeQL libraries and queries.

Tasks

The .vscode/tasks.json file defines custom tasks specific to working in this repository. To invoke one of these tasks, select the Terminal | Run Task... menu option, and then select the desired task from the dropdown. You can also invoke the Tasks: Run Task command from the command palette.

Description
CodeQL: the libraries and queries that power security researchers around the world, as well as code scanning in GitHub Advanced Security
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