Merge rc/1.24 into master.

.codeqlmanifest.json

@@ -1,6 +1,5 @@
 { "provide": [ "*/ql/src/qlpack.yml",
                "*/ql/test/qlpack.yml",
-               "*/ql/examples/qlpack.yml",
                "*/upgrades/qlpack.yml",
                "misc/legacy-support/*/qlpack.yml",
                "misc/suite-helpers/qlpack.yml" ] }

.devcontainer/devcontainer.json

@@ -1,9 +0,0 @@
-{
-  "extensions": [
-    "github.vscode-codeql",
-    "slevesque.vscode-zipexplorer"
-  ],
-  "settings": {
-    "codeQL.runningQueries.memory": 2048
-  }
-}

.github/codeql/codeql-config.yml

@@ -1,11 +0,0 @@
-name: "CodeQL config"
-
-queries:
-  - uses: security-and-quality
-
-paths-ignore:
-  - '/cpp/'
-  - '/java/'
-  - '/python/'
-  - '/javascript/ql/test'
-  - '/javascript/extractor/tests'

.github/workflows/codeql-analysis.yml

@@ -1,52 +0,0 @@
-name: "Code scanning - action"
-
-on:
-  push:
-  pull_request:
-  schedule:
-    - cron: '0 9 * * 1'
-
-jobs:
-  CodeQL-Build:
-
-    runs-on: ubuntu-latest
-
-    steps:
-    - name: Checkout repository
-      uses: actions/checkout@v2
-      with:
-        # We must fetch at least the immediate parents so that if this is
-        # a pull request then we can checkout the head.
-        fetch-depth: 2
-
-    # If this run was triggered by a pull request event, then checkout
-    # the head of the pull request instead of the merge commit.
-    - run: git checkout HEAD^2
-      if: ${{ github.event_name == 'pull_request' }}
-      
-    # Initializes the CodeQL tools for scanning.
-    - name: Initialize CodeQL
-      uses: github/codeql-action/init@v1
-      # Override language selection by uncommenting this and choosing your languages
-      with:
-        languages: csharp
-        config-file: ./.github/codeql/codeql-config.yml
-
-    # Autobuild attempts to build any compiled languages  (C/C++, C#, or Java).
-    # If this step fails, then you should remove it and run the build manually (see below)
-    - name: Autobuild
-      uses: github/codeql-action/autobuild@v1
-
-    # ℹ️ Command-line programs to run using the OS shell.
-    # 📚 https://git.io/JvXDl
-
-    # ✏️ If the Autobuild fails above, remove it and uncomment the following three lines
-    #    and modify them (or add more) to build your code if your project
-    #    uses a compiled language
-
-    #- run: |
-    #   make bootstrap
-    #   make release
-
-    - name: Perform CodeQL Analysis
-      uses: github/codeql-action/analyze@v1

.github/workflows/generate-query-help-docs.yml

@@ -1,57 +0,0 @@
-name: Generate CodeQL query help documentation using Sphinx
-
-on:
-  push:
-    branches:
-     - main
-     - 'rc/**'
-     - 'lgtm.com'
-  pull_request:
-    paths:
-      - '.github/workflows/generate-query-help-docs.yml'
-      - 'docs/codeql/query-help/**'
-
-jobs:
-  build:
-    runs-on: ubuntu-latest
-    steps:
-    - name: Clone github/codeql
-      uses: actions/checkout@v2
-      with:
-        path: codeql 
-    - name: Clone github/codeql-go
-      uses: actions/checkout@v2
-      with:
-        repository: 'github/codeql-go'
-        path: codeql-go
-    - name: Set up Python 3.8
-      uses: actions/setup-python@v2
-      with:
-        python-version: 3.8
-    - name: Download CodeQL CLI
-      uses: dsaltares/fetch-gh-release-asset@aa37ae5c44d3c9820bc12fe675e8670ecd93bd1c
-      with:
-        repo: "github/codeql-cli-binaries"
-        version: "latest"
-        file: "codeql-linux64.zip"
-        token: ${{ secrets.GITHUB_TOKEN }}
-    - name: Unzip CodeQL CLI
-      run: unzip -d codeql-cli codeql-linux64.zip
-    - name: Set up query help docs folder  
-      run: |
-        cp -r codeql/docs/codeql/** .
-    - name: Query help to markdown
-      run: |
-        PATH="$PATH:codeql-cli/codeql" python codeql/docs/codeql/query-help-markdown.py
-    - name: Run Sphinx for query help
-      uses: ammaraskar/sphinx-action@8b4f60114d7fd1faeba1a712269168508d4750d2 # v0.4
-      with:
-        docs-folder: "query-help/"
-        pre-build-command: "python -m pip install --upgrade recommonmark"
-        build-command: "sphinx-build -b dirhtml . _build" 
-    - name: Upload HTML artifacts
-      uses: actions/upload-artifact@v2
-      with:
-        name: query-help-html
-        path: query-help/_build
-    

.github/workflows/labeler.yml

@@ -1,11 +0,0 @@
-name: "Pull Request Labeler"
-on:
-- pull_request_target
-
-jobs:
-  triage:
-    runs-on: ubuntu-latest
-    steps:
-    - uses: actions/labeler@v2
-      with:
-        repo-token: "${{ secrets.GITHUB_TOKEN }}"

.github/workflows/query-list.yml

@@ -1,49 +0,0 @@
-name: Build code scanning query list
-
-on:
-  push:
-    branches:
-     - main
-     - 'rc/**'
-  pull_request:
-    paths:
-      - '.github/workflows/query-list.yml'
-      - 'misc/scripts/generate-code-scanning-query-list.py'
-
-jobs:
-  build:
-
-    runs-on: ubuntu-latest
-
-    steps:
-    - name: Clone self (github/codeql)
-      uses: actions/checkout@v2
-      with:
-        path: codeql 
-    - name: Clone github/codeql-go
-      uses: actions/checkout@v2
-      with:
-        repository: 'github/codeql-go'
-        path: codeql-go
-    - name: Set up Python 3.8
-      uses: actions/setup-python@v2
-      with:
-        python-version: 3.8
-    - name: Download CodeQL CLI
-      uses: dsaltares/fetch-gh-release-asset@aa37ae5c44d3c9820bc12fe675e8670ecd93bd1c
-      with:
-        repo: "github/codeql-cli-binaries"
-        version: "latest"
-        file: "codeql-linux64.zip"
-        token: ${{ secrets.GITHUB_TOKEN }}
-    - name: Unzip CodeQL CLI
-      run: unzip -d codeql-cli codeql-linux64.zip
-    - name: Build code scanning query list
-      run: |
-        PATH="$PATH:codeql-cli/codeql" python codeql/misc/scripts/generate-code-scanning-query-list.py > code-scanning-query-list.csv
-    - name: Upload code scanning query list
-      uses: actions/upload-artifact@v2
-      with:
-        name: code-scanning-query-list
-        path: code-scanning-query-list.csv
-    

.gitignore

@@ -21,3 +21,4 @@
 /codeql/
 
 csharp/extractor/Semmle.Extraction.CSharp.Driver/Properties/launchSettings.json
+.vscode

.vscode/.gitattributes

@@ -1 +0,0 @@
-*.json  linguist-language=JSON-with-Comments

.vscode/extensions.json

@@ -1,10 +0,0 @@
-{
-    // See https://go.microsoft.com/fwlink/?LinkId=827846 to learn about workspace recommendations.
-    // Extension identifier format: ${publisher}.${name}. Example: vscode.csharp
-    // List of extensions which should be recommended for users of this workspace.
-    "recommendations": [
-        "GitHub.vscode-codeql"
-    ],
-    // List of extensions recommended by VS Code that should not be recommended for users of this workspace.
-    "unwantedRecommendations": []
-}

.vscode/settings.json

@@ -1,3 +0,0 @@
-{
-    "omnisharp.autoStart": false
-}

.vscode/tasks.json

@@ -1,27 +0,0 @@
-{
-    // To run a task, select the `Terminal | Run Task...` menu option, and then select the task from
-    // the list in the dropdown, or invoke the `Tasks: Run Task` command from the command palette/
-    // To bind a keyboard shortcut to invoke a task, see https://code.visualstudio.com/docs/editor/tasks#_binding-keyboard-shortcuts-to-tasks.
-    // See https://go.microsoft.com/fwlink/?LinkId=733558
-    // for the documentation about the tasks.json format
-    "version": "2.0.0",
-    "tasks": [
-        {
-            "label": "Sync Identical Files",
-            "type": "process",
-            // Non-Windows OS will usually have Python 3 already installed at /usr/bin/python3.
-            "command": "python3",
-            "args": [
-                "config/sync-files.py",
-                "--latest"
-            ],
-            "group": "build",
-            "windows": {
-                // On Windows, use whatever Python interpreter is configured for this workspace. The default is
-                // just `python`, so if Python is already on the path, this will find it.
-                "command": "${config:python.pythonPath}",
-            },
-            "problemMatcher": []
-        }
-    ]
-}

CODEOWNERS

@@ -1,20 +1,11 @@
-/cpp/ @github/codeql-c-analysis
-/csharp/ @github/codeql-csharp
-/java/ @github/codeql-java
-/javascript/ @github/codeql-javascript
-/python/ @github/codeql-python
-
-# Assign query help for docs review
+/cpp/ @Semmle/cpp-analysis
+/csharp/ @Semmle/cs
+/java/ @Semmle/java
+/javascript/ @Semmle/js
+/python/ @Semmle/python
 /cpp/**/*.qhelp @hubwriter
 /csharp/**/*.qhelp @jf205
 /java/**/*.qhelp @felicitymay
 /javascript/**/*.qhelp @mchammer01
 /python/**/*.qhelp @felicitymay
 /docs/language/ @shati-patel @jf205
-
-# Exclude help for experimental queries from docs review
-/cpp/**/experimental/**/*.qhelp @github/codeql-c-analysis
-/csharp/**/experimental/**/*.qhelp @github/codeql-csharp
-/java/**/experimental/**/*.qhelp @github/codeql-java
-/javascript/**/experimental/**/*.qhelp @github/codeql-javascript
-/python/**/experimental/**/*.qhelp @github/codeql-python

CODE_OF_CONDUCT.md

@@ -1,126 +1,39 @@
-## Our Pledge
+# Code of Conduct
 
-We as members, contributors, and leaders pledge to make participation in our
-community a harassment-free experience for everyone, regardless of age, body
-size, visible or invisible disability, ethnicity, sex characteristics, gender
-identity and expression, level of experience, education, socio-economic status,
-nationality, personal appearance, race, religion, or sexual identity
-and orientation.
+This code of conduct outlines expectations for participation in the Semmle open source community, including any open source repositories on GitHub.com, as well as steps for reporting unacceptable behavior. We are committed to providing a welcoming and inspiring community for all.
 
-We pledge to act and interact in ways that contribute to an open, welcoming,
-diverse, inclusive, and healthy community.
+People violating this code of conduct may be banned from the community.
 
-## Our Standards
+Our community strives to:
+* Be friendly and patient: Remember you might not be communicating in someone else’s primary spoken or programming language, and others may not have your level of understanding.
+* Be welcoming: Our community welcomes and supports people of all backgrounds and identities. This includes, but is not limited to members of any race, ethnicity, culture, national origin, color, immigration status, social and economic class, educational level, sex, sexual orientation, gender identity and expression, age, size, family status, political belief, religion, and mental and physical ability.
+* Be respectful: We are a world-wide community of professionals, and we conduct ourselves professionally. Disagreement is no excuse for poor behavior and poor manners. Disrespectful and unacceptable behavior includes, but is not limited to:
+  * Violent threats or language.
+  * Discriminatory or derogatory jokes and language.
+  * Posting sexually explicit or violent material.
+  * Posting, or threatening to post, people’s personally identifying information (“doxing”).
+  * Insults, especially those using discriminatory terms or slurs.
+  * Behavior that could be perceived as sexual attention.
+  * Advocating for or encouraging any of the above behaviors.
+* Understand disagreements: Disagreements, both social and technical, are useful learning opportunities. Seek to understand others’ viewpoints and resolve differences constructively.
 
-Examples of behavior that contributes to a positive environment for our
-community include:
+This code is not exhaustive or complete. It serves to capture our common understanding of a productive, collaborative environment. We expect the code to be followed in spirit as much as in the letter.
 
-* Demonstrating empathy and kindness toward other people
-* Being respectful of differing opinions, viewpoints, and experiences
-* Giving and gracefully accepting constructive feedback
-* Accepting responsibility and apologizing to those affected by our mistakes,
-  and learning from the experience
-* Focusing on what is best not just for us as individuals, but for the
-  overall community
+# Scope
 
-Examples of unacceptable behavior include:
+This code of conduct applies to all repositories and communities for Semmle open source projects, regardless of whether or not the repository explicitly calls out its use of this code. The code also applies in public spaces when an individual is representing the Semmle open source community. Examples include using an official project email address, posting via an official social media account, or acting as an appointed representative at an online or offline event. 
 
-* The use of sexualized language or imagery, and sexual attention or
-  advances of any kind
-* Trolling, insulting or derogatory comments, and personal or political attacks
-* Public or private harassment
-* Publishing others' private information, such as a physical or email
-  address, without their explicit permission
-* Other conduct which could reasonably be considered inappropriate in a
-  professional setting
 
-## Enforcement Responsibilities
+# Reporting Code of Conduct Issues
+We encourage members of the community to resolve issues on their own whenever possible. This builds a broader and deeper understanding and ultimately a healthier interaction. In the event that an issue cannot be resolved locally, please feel free to report your concerns by contacting code-of-conduct@semmle.com. 
+In your report please include:
+* Your contact information.
+* Names (real, usernames or pseudonyms) of any individuals involved. If there are additional witnesses, please include them as well.
+* Your account of what occurred, and if you believe the incident is ongoing. If there is a publicly available record (e.g. a mailing list archive or a public chat log), please include a link or attachment.
+* Any additional information that may be helpful.
 
-Community leaders are responsible for clarifying and enforcing our standards of
-acceptable behavior and will take appropriate and fair corrective action in
-response to any behavior that they deem inappropriate, threatening, offensive,
-or harmful.
+All reports will be reviewed by a multi-person team and will result in a response that is deemed necessary and appropriate to the circumstances. Where additional perspectives are needed, the team may seek insight from others with relevant expertise or experience. The confidentiality of the person reporting the incident will be kept at all times. Involved parties are never part of the review team.
 
-Community leaders have the right and responsibility to remove, edit, or reject
-comments, commits, code, wiki edits, issues, and other contributions that are
-not aligned to this Code of Conduct, and will communicate reasons for moderation
-decisions when appropriate.
+Anyone asked to stop unacceptable behavior is expected to comply immediately. If an individual engages in unacceptable behavior, the review team may take any action they deem appropriate, including a permanent ban from the community.
 
-## Scope
-
-This Code of Conduct applies within all community spaces, and also applies when
-an individual is officially representing the community in public spaces.
-Examples of representing our community include using an official e-mail address,
-posting via an official social media account, or acting as an appointed
-representative at an online or offline event.
-
-## Enforcement
-
-Instances of abusive, harassing, or otherwise unacceptable behavior may be
-reported to the community leaders responsible for enforcement at
-opensource@github.com.
-All complaints will be reviewed and investigated promptly and fairly.
-
-All community leaders are obligated to respect the privacy and security of the
-reporter of any incident.
-
-## Enforcement Guidelines
-
-Community leaders will follow these Community Impact Guidelines in determining
-the consequences for any action they deem in violation of this Code of Conduct:
-
-### 1. Correction
-
-**Community Impact**: Use of inappropriate language or other behavior deemed
-unprofessional or unwelcome in the community.
-
-**Consequence**: A private, written warning from community leaders, providing
-clarity around the nature of the violation and an explanation of why the
-behavior was inappropriate. A public apology may be requested.
-
-### 2. Warning
-
-**Community Impact**: A violation through a single incident or series
-of actions.
-
-**Consequence**: A warning with consequences for continued behavior. No
-interaction with the people involved, including unsolicited interaction with
-those enforcing the Code of Conduct, for a specified period of time. This
-includes avoiding interactions in community spaces as well as external channels
-like social media. Violating these terms may lead to a temporary or
-permanent ban.
-
-### 3. Temporary Ban
-
-**Community Impact**: A serious violation of community standards, including
-sustained inappropriate behavior.
-
-**Consequence**: A temporary ban from any sort of interaction or public
-communication with the community for a specified period of time. No public or
-private interaction with the people involved, including unsolicited interaction
-with those enforcing the Code of Conduct, is allowed during this period.
-Violating these terms may lead to a permanent ban.
-
-### 4. Permanent Ban
-
-**Community Impact**: Demonstrating a pattern of violation of community
-standards, including sustained inappropriate behavior,  harassment of an
-individual, or aggression toward or disparagement of classes of individuals.
-
-**Consequence**: A permanent ban from any sort of public interaction within
-the community.
-
-## Attribution
-
-This Code of Conduct is adapted from the [Contributor Covenant][homepage],
-version 2.0, available at
-https://www.contributor-covenant.org/version/2/0/code_of_conduct.html.
-
-Community Impact Guidelines were inspired by [Mozilla's code of conduct
-enforcement ladder](https://github.com/mozilla/diversity).
-
-[homepage]: https://www.contributor-covenant.org
-
-For answers to common questions about this code of conduct, see the FAQ at
-https://www.contributor-covenant.org/faq. Translations are available at
-https://www.contributor-covenant.org/translations.
+*This text is licensed under the [CC-BY-4.0](https://creativecommons.org/licenses/by/4.0/) license. It is based on a template established by the [TODO Group](http://todogroup.org/) and variants thereof used by numerous other large communities (e.g., [Microsoft](https://microsoft.github.io/codeofconduct/), [Facebook](https://code.fb.com/codeofconduct/), [Yahoo](https://yahoo.github.io/codeofconduct), [Twitter](https://github.com/twitter/code-of-conduct), [GitHub](https://blog.github.com/2015-07-20-adopting-the-open-code-of-conduct/)) and the Scope section from the [Contributor Covenant version 1.4](http://contributor-covenant.org/version/1/4/).*

CONTRIBUTING.md

@@ -2,7 +2,7 @@
 
 We welcome contributions to our CodeQL libraries and queries. Got an idea for a new check, or how to improve an existing query? Then please go ahead and open a pull request! Contributions to this project are [released](https://help.github.com/articles/github-terms-of-service/#6-contributions-under-repository-license) to the public under the [project's open source license](LICENSE).
 
-There is lots of useful documentation to help you write queries, ranging from information about query file structure to tutorials for specific target languages. For more information on the documentation available, see [CodeQL queries](https://help.semmle.com/QL/learn-ql/writing-queries/writing-queries.html) on [help.semmle.com](https://help.semmle.com).
+There is lots of useful documentation to help you write queries, ranging from information about query file structure to tutorials for specific target languages. For more information on the documentation available, see [Writing CodeQL queries](https://help.semmle.com/QL/learn-ql/writing-queries/writing-queries.html) on [help.semmle.com](https://help.semmle.com).
 
 
 ## Submitting a new experimental query
@@ -20,7 +20,7 @@ If you have an idea for a query that you would like to share with other CodeQL u
       * Python: `python/ql/src`
 
     Each language-specific directory contains further subdirectories that group queries based on their `@tags` or purpose.
-    - Experimental queries and libraries are stored in the `experimental` subdirectory within each language-specific directory in the [CodeQL repository](https://github.com/github/codeql). For example, experimental Java queries and libraries are stored in `java/ql/src/experimental` and any corresponding tests in `java/ql/test/experimental`.
+    - Experimental queries and libraries are stored in the `experimental` subdirectory within each language-specific directory in the [CodeQL repository](https://github.com/Semmle/ql). For example, experimental Java queries and libraries are stored in `java/ql/src/experimental` and any corresponding tests in `java/ql/test/experimental`.
     - The structure of an `experimental` subdirectory mirrors the structure of its parent directory.
     - Select or create an appropriate directory in `experimental` based on the existing directory structure of `experimental` or its parent directory.
 
@@ -32,11 +32,11 @@ If you have an idea for a query that you would like to share with other CodeQL u
 
     For details, see the [guide on query metadata](docs/query-metadata-style-guide.md).
 
-    Make sure the `select` statement is compatible with the query `@kind`. See [About CodeQL queries](https://help.semmle.com/QL/learn-ql/writing-queries/introduction-to-queries.html#select-clause) on help.semmle.com.
+    Make sure the `select` statement is compatible with the query `@kind`. See [Introduction to query files](https://help.semmle.com/QL/learn-ql/writing-queries/introduction-to-queries.html#select-clause) on help.semmle.com.
 
 3. **Formatting**
 
-    - The queries and libraries must be autoformatted, for example using the "Format Document" command in [CodeQL for Visual Studio Code](https://help.semmle.com/codeql/codeql-for-vscode/procedures/about-codeql-for-vscode.html).
+    - The queries and libraries must be [autoformatted](https://help.semmle.com/codeql/codeql-for-vscode/reference/editor.html#autoformatting).
 
 4. **Compilation**
 
@@ -53,6 +53,14 @@ After the experimental query is merged, we welcome pull requests to improve it.
 
 ## Using your personal data
 
-If you contribute to this project, we will record your name and email address (as provided by you with your contributions) as part of the code repositories, which are public. We might also use this information to contact you in relation to your contributions, as well as in the normal course of software development. We also store records of CLA agreements signed in the past, but no longer require contributors to sign a CLA. Under GDPR legislation, we do this on the basis of our legitimate interest in creating the CodeQL product. 
+If you contribute to this project, we will record your name and email
+address (as provided by you with your contributions) as part of the code
+repositories, which are public. We might also use this information
+to contact you in relation to your contributions, as well as in the
+normal course of software development. We also store records of your
+CLA agreements. Under GDPR legislation, we do this
+on the basis of our legitimate interest in creating the CodeQL product.
+
+Please do get in touch (privacy@github.com) if you have any questions about
+this or our data protection policies.
 
-Please do get in touch (privacy@github.com) if you have any questions about this or our data protection policies.

README.md

@@ -1,6 +1,6 @@
 # CodeQL
 
-This open source repository contains the standard CodeQL libraries and queries that power [LGTM](https://lgtm.com) and the other CodeQL products that [GitHub](https://github.com) makes available to its customers worldwide. For the queries, libraries, and extractor that power Go analysis, visit the [CodeQL for Go repository](https://github.com/github/codeql-go).
+This open source repository contains the standard CodeQL libraries and queries that power [LGTM](https://lgtm.com) and the other CodeQL products that [GitHub](https://github.com) makes available to its customers worldwide.
 
 ## How do I learn CodeQL and run queries?
 
@@ -9,20 +9,8 @@ You can use the [interactive query console](https://lgtm.com/help/lgtm/using-que
 
 ## 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](CONTRIBUTING.md). You can also consult our [style guides](https://github.com/github/codeql/tree/main/docs) 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.
+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](CONTRIBUTING.md). You can also consult our [style guides](https://github.com/Semmle/ql/tree/master/docs) 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.
 
 ## License
 
 The code in this repository is licensed under the [MIT License](LICENSE) by [GitHub](https://github.com).
-
-## 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](https://marketplace.visualstudio.com/items?itemName=GitHub.vscode-codeql) 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.

change-notes/1.24/analysis-cpp.md

@@ -4,8 +4,6 @@ The following changes in version 1.24 affect C/C++ analysis in all applications.
 
 ## General improvements
 
-You can now suppress alerts using either single-line block comments (`/* ... */`) or line comments (`// ...`).
-
 ## New queries
 
 | **Query**                   | **Tags**  | **Purpose**                                                        |
@@ -14,71 +12,47 @@ You can now suppress alerts using either single-line block comments (`/* ... */`
 
 ## Changes to existing queries
 
-A new taint-tracking library is used by all the security queries that track tainted values
-(`cpp/path-injection`, `cpp/cgi-xss`, `cpp/sql-injection`, `cpp/uncontrolled-process-operation`,
-`cpp/unbounded-write`, `cpp/tainted-format-string`, `cpp/tainted-format-string-through-global`,
-`cpp/uncontrolled-arithmetic`, `cpp/uncontrolled-allocation-size`, `cpp/user-controlled-bypass`,
-`cpp/cleartext-storage-buffer`, `cpp/tainted-permissions-check`).
-These queries now have more precise results and also offer _path explanations_ so you can explore the results easily.
-There is a performance cost to this, and the LGTM query suite will overall run slower than before.
-
 | **Query**                  | **Expected impact**    | **Change**                                                       |
 |----------------------------|------------------------|------------------------------------------------------------------|
-| Boost\_asio TLS Settings Misconfiguration (`cpp/boost/tls-settings-misconfiguration`) | Query id change | The identifier was updated to use dashes in place of underscores (previous identifier `cpp/boost/tls_settings_misconfiguration`). |
 | Buffer not sufficient for string (`cpp/overflow-calculated`) | More true positive results | This query now identifies a wider variety of buffer allocations using the `semmle.code.cpp.models.interfaces.Allocation` library. |
-| Hard-coded Japanese era start date (`cpp/japanese-era/exact-era-date`) |  | This query is no longer run on LGTM. |
+| No space for zero terminator (`cpp/no-space-for-terminator`) | More true positive results | This query now identifies a wider variety of buffer allocations using the `semmle.code.cpp.models.interfaces.Allocation` library. |
 | Memory is never freed (`cpp/memory-never-freed`) | More true positive results | This query now identifies a wider variety of buffer allocations using the `semmle.code.cpp.models.interfaces.Allocation` library. |
 | Memory may not be freed (`cpp/memory-may-not-be-freed`) | More true positive results | This query now identifies a wider variety of buffer allocations using the `semmle.code.cpp.models.interfaces.Allocation` library. |
-| Mismatching new/free or malloc/delete (`cpp/new-free-mismatch`) | Fewer false positive results | Improved handling of template code gives greater precision. |
-| Missing return statement (`cpp/missing-return`) | Fewer false positive results and more accurate locations | Functions containing `asm` statements are no longer highlighted by this query. The locations reported by this query are now more accurate in some cases. |
-| No space for zero terminator (`cpp/no-space-for-terminator`) | More results with greater precision | The query gives more precise results for a wider variety of buffer allocations. String arguments to formatting functions are now (usually) expected to be null terminated strings. Use of the `semmle.code.cpp.models.interfaces.Allocation` library identifies problems with a wider variety of buffer allocations. This query is also more conservative when identifying which pointers point to null-terminated strings. |
-| Overflow in uncontrolled allocation size (`cpp/uncontrolled-allocation-size`) | Fewer false positive results | The query now produces fewer, more accurate results. Cases where the tainted allocation size is range checked are more reliably excluded. |
+| Mismatching new/free or malloc/delete (`cpp/new-free-mismatch`) | Fewer false positive results | Fixed false positive results in template code. |
+| Missing return statement (`cpp/missing-return`) | Fewer false positive results | Functions containing `asm` statements are no longer highlighted by this query. |
+| Missing return statement (`cpp/missing-return`) | More accurate locations | Locations reported by this query are now more accurate in some cases. |
+| No space for zero terminator (`cpp/no-space-for-terminator`) | More correct results | String arguments to formatting functions are now (usually) expected to be null terminated strings. |
+| Hard-coded Japanese era start date (`cpp/japanese-era/exact-era-date`) |  | This query is no longer run on LGTM. |
+| No space for zero terminator (`cpp/no-space-for-terminator`) | Fewer false positive results | This query has been modified to be more conservative when identifying which pointers point to null-terminated strings.  This approach produces fewer, more accurate results. |
+| Overflow in uncontrolled allocation size (`cpp/uncontrolled-allocation-size`) | Fewer false positive results | Cases where the tainted allocation size is range checked are now more reliably excluded. |
+| Overflow in uncontrolled allocation size (`cpp/uncontrolled-allocation-size`) | Fewer false positive results | The query now produces fewer, more accurate results. |
 | Overloaded assignment does not return 'this' (`cpp/assignment-does-not-return-this`) | Fewer false positive results | This query no longer reports incorrect results in template classes. |
-| Pointer overflow check (`cpp/pointer-overflow-check`),<br> Possibly wrong buffer size in string copy (`cpp/bad-strncpy-size`),<br> Signed overflow check (`cpp/signed-overflow-check`) | More correct results | A new library is used for determining which expressions have identical value, giving more precise results. There is a performance cost to this, and the LGTM suite will overall run slower than before. |
 | Unsafe array for days of the year (`cpp/leap-year/unsafe-array-for-days-of-the-year`) |  | This query is no longer run on LGTM. |
 | Unsigned comparison to zero (`cpp/unsigned-comparison-zero`) | More correct results | This query now also looks for comparisons of the form `0 <= x`. |
 
 ## Changes to libraries
 
-* The built-in C++20 "spaceship operator" (`<=>`) is now supported via the QL
-  class `SpaceshipExpr`. Overloaded forms are modeled as calls to functions
-  named `operator<=>`.
-* The data-flow library (`semmle.code.cpp.dataflow.DataFlow` and
-  `semmle.code.cpp.dataflow.TaintTracking`) has been improved, which affects
-  and improves some security queries. The improvements are:
-    - Track flow through functions that combine taint tracking with flow through fields.
-    - Track flow through clone-like functions, that is, functions that read contents of a field from a
-      parameter and stores the value in the field of a returned object.
-* The security pack taint tracking library
-  (`semmle.code.cpp.security.TaintTracking`) uses a new intermediate
-  representation. This provides a more precise analysis of flow through
-  parameters and pointers. For new queries, however, we continue to recommend
-  using `semmle.code.cpp.dataflow.TaintTracking`.
-* The global value numbering library
-  (`semmle.code.cpp.valuenumbering.GlobalValueNumbering`) uses a new
-  intermediate representation to provide a more precise analysis of
-  heap-allocated memory and pointers to stack variables.
-* New libraries have been created to provide a more consistent and useful interface
-  for modeling allocation and deallocation. These replace the old
-  `semmle.code.cpp.commons.Alloc` library.
-    * The new `semmle.code.cpp.models.interfaces.Allocation` library models
-      allocations, such as `new` expressions and calls to `malloc`.
-    * The new `semmle.code.cpp.models.interfaces.Deallocation` library
-      models deallocations, such as `delete` expressions and calls to `free`.
-    * The predicate `freeCall` in `semmle.code.cpp.commons.Alloc` has been
-      deprecated. The `Allocation` and `Deallocation` models in
-      `semmle.code.cpp.models.interfaces` should be used instead.
+* The data-flow library has been improved, which affects and improves some security queries. The improvements are:
+  - Track flow through functions that combine taint tracking with flow through fields.
+  - Track flow through clone-like functions, that is, functions that read contents of a field from a
+    parameter and stores the value in the field of a returned object.
+* Created the `semmle.code.cpp.models.interfaces.Allocation` library to model allocation such as `new` expressions and calls to `malloc`. This in intended to replace the functionality in `semmle.code.cpp.commons.Alloc` with a more consistent and useful interface.
+* Created the `semmle.code.cpp.models.interfaces.Deallocation` library to model deallocation such as `delete` expressions and calls to `free`. This in intended to replace the functionality in `semmle.code.cpp.commons.Alloc` with a more consistent and useful interface.
 * The new class `StackVariable` should be used in place of `LocalScopeVariable`
   in most cases. The difference is that `StackVariable` does not include
   variables declared with `static` or `thread_local`.
-    * As a rule of thumb, custom queries about the _values_ of variables should
-      be changed from `LocalScopeVariable` to `StackVariable`, while queries
-      about the _name or scope_ of variables should remain unchanged.
-    * The `LocalScopeVariableReachability` library is deprecated in favor of
-      `StackVariableReachability`. The functionality is the same.
-* Taint tracking and data flow now features better modeling of commonly-used
-  library functions:
-    * `gets` and similar functions,
-    * the most common operations on `std::string`,
-    * `strdup` and similar functions, and
-    * formatting functions such as `sprintf`.
+  * As a rule of thumb, custom queries about the _values_ of variables should
+    be changed from `LocalScopeVariable` to `StackVariable`, while queries
+    about the _name or scope_ of variables should remain unchanged.
+  * The `LocalScopeVariableReachability` library is deprecated in favor of
+    `StackVariableReachability`. The functionality is the same.
+* The models library models `strlen` in more detail, and includes common variations such as `wcslen`.
+* The models library models `gets` and similar functions.
+* The models library now partially models `std::string`.
+* The taint tracking library (`semmle.code.cpp.dataflow.TaintTracking`) has had
+  the following improvements:
+  * The library now models data flow through `strdup` and similar functions.
+  * The library now models data flow through formatting functions such as `sprintf`.
+* The security pack taint tracking library (`semmle.code.cpp.security.TaintTracking`) uses a new intermediate representation. This provides a more precise analysis of pointers to stack variables and flow through parameters, improving the results of many security queries.
+* The global value numbering library (`semmle.code.cpp.valuenumbering.GlobalValueNumbering`) uses a new intermediate representation to provide a more precise analysis of heap allocated memory and pointers to stack variables.
+* `freeCall` in `semmle.code.cpp.commons.Alloc` has been deprecated. The`Allocation` and `Deallocation` models in `semmle.code.cpp.models.interfaces` should be used instead.

change-notes/1.24/analysis-csharp.md

@@ -2,31 +2,30 @@
 
 The following changes in version 1.24 affect C# analysis in all applications.
 
-## General improvements
-
-You can now suppress alerts using either single-line block comments (`/* ... */`) or line comments (`// ...`).
-
 ## New queries
 
 | **Query**                   | **Tags**  | **Purpose**                                                        |
 |-----------------------------|-----------|--------------------------------------------------------------------|
-| Assembly path injection (`cs/assembly-path-injection`) | security, external/cwe/cwe-114 | Finds user-controlled data used to load an assembly. Results are shown on LGTM by default. |
-| Insecure configuration for ASP.NET requestValidationMode (`cs/insecure-request-validation-mode`) | security, external/cwe/cwe-016 | Finds where this attribute has been set to a value less than 4.5, which turns off some validation features and makes the application less secure. By default, the query is not run on LGTM. |
-| Insecure SQL connection (`cs/insecure-sql-connection`) | security, external/cwe/cwe-327 | Finds unencrypted SQL connection strings. Results are not shown on LGTM by default. |
-| Page request validation is disabled (`cs/web/request-validation-disabled`) | security, frameworks/asp.net, external/cwe/cwe-016 | Finds where ASP.NET page request validation has been disabled, which could make the application less secure. By default, the query is not run on LGTM. |
-| Serialization check bypass (`cs/serialization-check-bypass`) | security, external/cwe/cwe-20 | Finds where data is not validated in a deserialization method. Results are not shown on LGTM by default. |
-| XML injection (`cs/xml-injection`) | security, external/cwe/cwe-091 | Finds user-controlled data that is used to write directly to an XML document. Results are shown on LGTM by default. |
+| Assembly path injection (`cs/assembly-path-injection`) | security, external/cwe/cwe-114 | Finds user-controlled data used to load an assembly. |
+| Insecure configuration for ASP.NET requestValidationMode (`cs/insecure-request-validation-mode`) | security, external/cwe/cwe-016 | Finds where this attribute has been set to a value less than 4.5, which turns off some validation features and makes the application less secure. |
+| Insecure SQL connection (`cs/insecure-sql-connection`) | security, external/cwe/cwe-327 | Finds unencrypted SQL connection strings. |
+| Page request validation is disabled (`cs/web/request-validation-disabled`) | security, frameworks/asp.net, external/cwe/cwe-016 | Finds where ASP.NET page request validation has been disabled, which could make the application less secure. |
+| Serialization check bypass (`cs/serialization-check-bypass`) | security, external/cwe/cwe-20 | Finds where data is not validated in a deserialization method. |
+| XML injection (`cs/xml-injection`) | security, external/cwe/cwe-091 | Finds user-controlled data that is used to write directly to an XML document. |
 
 ## Changes to existing queries
 
 | **Query**                    | **Expected impact**    | **Change**                        |
 |------------------------------|------------------------|-----------------------------------|
-| Dereferenced variable may be null (`cs/dereferenced-value-may-be-null`) | More results | Results are reported from parameters with a default value of `null`. |
-| Information exposure through an exception (`cs/information-exposure-through-exception`) | More results | The query now recognizes writes to cookies, writes to ASP.NET (`Inner`)`Text` properties, and email contents as additional sinks. |
-| Information exposure through transmitted data (`cs/sensitive-data-transmission`) | More results | The query now recognizes writes to cookies and writes to ASP.NET (`Inner`)`Text` properties as additional sinks. |
+| Useless assignment to local variable (`cs/useless-assignment-to-local`) | Fewer false positive results | Results have been removed when the variable is named `_` in a `foreach` statement. | 
 | Potentially dangerous use of non-short-circuit logic (`cs/non-short-circuit`) | Fewer false positive results | Results have been removed when the expression contains an `out` parameter. |
-| Useless assignment to local variable (`cs/useless-assignment-to-local`) | Fewer false positive results | Results have been removed when the value assigned is an (implicitly or explicitly) cast default-like value. For example, `var s = (string)null` and `string s = default`. Results have also been removed when the variable is named `_` in a `foreach` statement. | 
+| Dereferenced variable may be null (`cs/dereferenced-value-may-be-null`) | More results | Results are reported from parameters with a default value of `null`. |
+| Useless assignment to local variable (`cs/useless-assignment-to-local`) | Fewer false positive results | Results have been removed when the value assigned is an (implicitly or explicitly) cast default-like value. For example, `var s = (string)null` and `string s = default`. |
 | XPath injection (`cs/xml/xpath-injection`) | More results | The query now recognizes calls to methods on `System.Xml.XPath.XPathNavigator` objects. |
+| Information exposure through transmitted data (`cs/sensitive-data-transmission`) | More results | The query now recognizes writes to cookies and writes to ASP.NET (`Inner`)`Text` properties as additional sinks. |
+| Information exposure through an exception (`cs/information-exposure-through-exception`) | More results | The query now recognizes writes to cookies, writes to ASP.NET (`Inner`)`Text` properties, and email contents as additional sinks. |
+
+## Removal of old queries
 
 ## Changes to code extraction
 
@@ -38,11 +37,13 @@ You can now suppress alerts using either single-line block comments (`/* ... */`
 ## Changes to libraries
 
 * The data-flow library has been improved, which affects and improves most security queries. The improvements are:
-    - Track flow through methods that combine taint tracking with flow through fields.
-    - Track flow through clone-like methods, that is, methods that read the contents of a field from a
-      parameter and store the value in the field of a returned object.
+  - Track flow through methods that combine taint tracking with flow through fields.
+  - Track flow through clone-like methods, that is, methods that read contents of a field from a
+    parameter and stores the value in the field of a returned object.
 * The taint tracking library now tracks flow through (implicit or explicit) conversion operator calls.
 * [Code contracts](https://docs.microsoft.com/en-us/dotnet/framework/debug-trace-profile/code-contracts) are now recognized, and are treated like any other assertion methods.
 * Expression nullability flow state is given by the predicates `Expr.hasNotNullFlowState()` and `Expr.hasMaybeNullFlowState()`.
 * `stackalloc` array creations are now represented by the QL class `Stackalloc`. Previously they were represented by the class `ArrayCreation`.
-* A new class `RemoteFlowSink` has been added to model sinks where data might be exposed to external users. Examples include web page output, emails, and cookies.
+* A new class `RemoteFlowSink` has been added to model sinks where data might be exposed to external users. Examples include web page output, e-mails, and cookies.
+
+## Changes to autobuilder

change-notes/1.24/analysis-java.md

@@ -4,7 +4,7 @@ The following changes in version 1.24 affect Java analysis in all applications.
 
 ## General improvements
 
-* You can now suppress alerts using either single-line block comments (`/* ... */`) or line comments (`// ...`).
+* Alert suppression can now be done with single-line block comments (`/* ... */`) as well as line comments (`// ...`).
 * A `Customizations.qll` file has been added to allow customizations of the standard library that apply to all queries.
 
 ## New queries
@@ -21,16 +21,16 @@ The following changes in version 1.24 affect Java analysis in all applications.
 
 | **Query**                    | **Expected impact**    | **Change**                        |
 |------------------------------|------------------------|-----------------------------------|
-| Dereferenced variable may be null (`java/dereferenced-value-may-be-null`) | Fewer false positive results | Final fields with a non-null initializer are no longer reported. |
-| Expression always evaluates to the same value (`java/evaluation-to-constant`) | Fewer false positive results | Expressions of the form `0 * x` are usually intended and no longer reported. Also left shift of ints by 32 bits and longs by 64 bits are no longer reported as they are not constant, these results are instead reported by the new query `java/lshift-larger-than-type-width`. |
-| Useless null check (`java/useless-null-check`) | More true positive results | Useless checks on final fields with a non-null initializer are now reported. |
+| Dereferenced variable may be null (`java/dereferenced-value-may-be-null`) | Fewer false positives | Final fields with a non-null initializer are no longer reported. |
+| Expression always evaluates to the same value (`java/evaluation-to-constant`) | Fewer false positives | Expressions of the form `0 * x` are usually intended and no longer reported. Also left shift of ints by 32 bits and longs by 64 bits are no longer reported as they are not constant, these results are instead reported by the new query `java/lshift-larger-than-type-width`. |
+| Useless null check (`java/useless-null-check`) | More true positives | Useless checks on final fields with a non-null initializer are now reported. |
 
 ## Changes to libraries
 
 * The data-flow library has been improved, which affects and improves most security queries. The improvements are:
-    - Track flow through methods that combine taint tracking with flow through fields.
-    - Track flow through clone-like methods, that is, methods that read contents of a field from a
-      parameter and stores the value in the field of a returned object.
+  - Track flow through methods that combine taint tracking with flow through fields.
+  - Track flow through clone-like methods, that is, methods that read contents of a field from a
+    parameter and stores the value in the field of a returned object.
 * Identification of test classes has been improved. Previously, one of the
   match conditions would classify any class with a name containing the string
   "Test" as a test class, but now this matching has been replaced with one that
@@ -38,6 +38,6 @@ The following changes in version 1.24 affect Java analysis in all applications.
   general file classification mechanism and thus suppression of alerts, and
   also any security queries using taint tracking, as test classes act as
   default barriers stopping taint flow.
-* Parentheses are now no longer modeled directly in the AST, that is, the
+* Parentheses are now no longer modelled directly in the AST, that is, the
   `ParExpr` class is empty. Instead, a parenthesized expression can be
   identified with the `Expr.isParenthesized()` member predicate.

change-notes/1.24/analysis-javascript.md

@@ -4,68 +4,67 @@
 
 * TypeScript 3.8 is now supported.
 
-* You can now suppress alerts using either single-line block comments (`/* ... */`) or line comments (`// ...`).
+* Alert suppression can now be done with single-line block comments (`/* ... */`) as well as line comments (`// ...`).
 
 * Resolution of imports has improved, leading to more results from the security queries:
-    - Imports with the `.js` extension can now be resolved to a TypeScript file,
-      when the import refers to a file generated by TypeScript.
-    - Imports that rely on path-mappings from a `tsconfig.json` file can now be resolved.
-    - Export declarations of the form `export * as ns from "x"` are now analyzed more precisely.
+  - Imports with the `.js` extension can now be resolved to a TypeScript file,
+  when the import refers to a file generated by TypeScript.
+  - Imports that rely on path-mappings from a `tsconfig.json` file can now be resolved.
+  - Export declarations of the form `export * as ns from "x"` are now analyzed more precisely.
 
 * The analysis of sanitizers has improved, leading to more accurate results from the security queries.
   In particular:
-    - Sanitizer guards now act across function boundaries in more cases.
-    - Sanitizers can now better distinguish between a tainted value and an object _containing_ a tainted value.
+  - Sanitizer guards now act across function boundaries in more cases.
+  - Sanitizers can now better distinguish between a tainted value and an object _containing_ a tainted value.
 
 * Call graph construction has been improved, leading to more results from the security queries:
-    - Calls can now be resolved to indirectly-defined class members in more cases.
-    - Calls through partial invocations such as `.bind` can now be resolved in more cases.
+  - Calls can now be resolved to indirectly-defined class members in more cases.
+  - Calls through partial invocations such as `.bind` can now be resolved in more cases.
 
 * Support for flow summaries has been more clearly marked as being experimental and moved to the new `experimental` folder.
 
 * Support for the following frameworks and libraries has been improved:
-    - [chrome-remote-interface](https://www.npmjs.com/package/chrome-remote-interface)
-    - [Electron](https://electronjs.org/)
-    - [for-in](https://www.npmjs.com/package/for-in)
-    - [for-own](https://www.npmjs.com/package/for-own)
-    - [fstream](https://www.npmjs.com/package/fstream)
-    - [Handlebars](https://www.npmjs.com/package/handlebars)
-    - [http2](https://nodejs.org/api/http2.html)
-    - [jQuery](https://jquery.com/)
-    - [jsonfile](https://www.npmjs.com/package/jsonfile)
-    - [Koa](https://www.npmjs.com/package/koa)
-    - [lazy-cache](https://www.npmjs.com/package/lazy-cache)
-    - [mongodb](https://www.npmjs.com/package/mongodb)
-    - [ncp](https://www.npmjs.com/package/ncp)
-    - [Node.js](https://nodejs.org/)
-    - [node-dir](https://www.npmjs.com/package/node-dir)
-    - [path-exists](https://www.npmjs.com/package/path-exists)
-    - [pg](https://www.npmjs.com/package/pg)
-    - [react](https://www.npmjs.com/package/react)
-    - [recursive-readdir](https://www.npmjs.com/package/recursive-readdir)
-    - [request](https://www.npmjs.com/package/request)
-    - [rimraf](https://www.npmjs.com/package/rimraf)
-    - [send](https://www.npmjs.com/package/send)
-    - [Socket.IO](https://socket.io/)
-    - [SockJS](https://www.npmjs.com/package/sockjs)
-    - [SockJS-client](https://www.npmjs.com/package/sockjs-client)
-    - [typeahead.js](https://www.npmjs.com/package/typeahead.js)
-    - [vinyl-fs](https://www.npmjs.com/package/vinyl-fs)
-    - [WebSocket](https://developer.mozilla.org/en-US/docs/Web/API/WebSockets_API)
-    - [write-file-atomic](https://www.npmjs.com/package/write-file-atomic)
-    - [ws](https://github.com/websockets/ws)
-
+  - [Electron](https://electronjs.org/)
+  - [fstream](https://www.npmjs.com/package/fstream)
+  - [Handlebars](https://www.npmjs.com/package/handlebars)
+  - [jsonfile](https://www.npmjs.com/package/jsonfile)
+  - [Koa](https://www.npmjs.com/package/koa)
+  - [Node.js](https://nodejs.org/)
+  - [Socket.IO](https://socket.io/)
+  - [WebSocket](https://developer.mozilla.org/en-US/docs/Web/API/WebSockets_API)
+  - [chrome-remote-interface](https://www.npmjs.com/package/chrome-remote-interface)
+  - [for-in](https://www.npmjs.com/package/for-in)
+  - [for-own](https://www.npmjs.com/package/for-own)
+  - [http2](https://nodejs.org/api/http2.html)
+  - [jQuery](https://jquery.com/)
+  - [lazy-cache](https://www.npmjs.com/package/lazy-cache)
+  - [mongodb](https://www.npmjs.com/package/mongodb)
+  - [ncp](https://www.npmjs.com/package/ncp)
+  - [node-dir](https://www.npmjs.com/package/node-dir)
+  - [path-exists](https://www.npmjs.com/package/path-exists)
+  - [pg](https://www.npmjs.com/package/pg)
+  - [react](https://www.npmjs.com/package/react)
+  - [recursive-readdir](https://www.npmjs.com/package/recursive-readdir)
+  - [request](https://www.npmjs.com/package/request)
+  - [rimraf](https://www.npmjs.com/package/rimraf)
+  - [send](https://www.npmjs.com/package/send)
+  - [SockJS](https://www.npmjs.com/package/sockjs)
+  - [SockJS-client](https://www.npmjs.com/package/sockjs-client)
+  - [typeahead.js](https://www.npmjs.com/package/typeahead.js)
+  - [vinyl-fs](https://www.npmjs.com/package/vinyl-fs)
+  - [write-file-atomic](https://www.npmjs.com/package/write-file-atomic)
+  - [ws](https://github.com/websockets/ws)
 
 ## New queries
 
 | **Query**                                                                       | **Tags**                                                          | **Purpose**                                                                                                                                                                            |
 |---------------------------------------------------------------------------------|-------------------------------------------------------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
 | Cross-site scripting through exception (`js/xss-through-exception`) | security, external/cwe/cwe-079, external/cwe/cwe-116              | Highlights potential XSS vulnerabilities where an exception is written to the DOM. Results are not shown on LGTM by default. |
+| Regular expression always matches (`js/regex/always-matches`) | correctness, regular-expressions | Highlights regular expression checks that trivially succeed by matching an empty substring. Results are shown on LGTM by default. |
 | Missing await (`js/missing-await`) | correctness | Highlights expressions that operate directly on a promise object in a nonsensical way, instead of awaiting its result. Results are shown on LGTM by default. |
 | Polynomial regular expression used on uncontrolled data (`js/polynomial-redos`) | security, external/cwe/cwe-730, external/cwe/cwe-400 | Highlights expensive regular expressions that may be used on malicious input. Results are shown on LGTM by default. | 
 | Prototype pollution in utility function (`js/prototype-pollution-utility`) | security, external/cwe/cwe-400, external/cwe/cwe-471 | Highlights recursive assignment operations that are susceptible to prototype pollution. Results are shown on LGTM by default. |
-| Regular expression always matches (`js/regex/always-matches`) | correctness, regular-expressions | Highlights regular expression checks that trivially succeed by matching an empty substring. Results are shown on LGTM by default. |
-| Unsafe jQuery plugin (`js/unsafe-jquery-plugin`) | | Highlights potential XSS vulnerabilities in unsafely designed jQuery plugins. Results are shown on LGTM by default. |
+| Unsafe jQuery plugin (`js/unsafe-jquery-plugin`) | Highlights potential XSS vulnerabilities in unsafely designed jQuery plugins. Results are shown on LGTM by default. |
 | Unnecessary use of `cat` process (`js/unnecessary-use-of-cat`) | correctness, security, maintainability | Highlights command executions of `cat` where the fs API should be used instead. Results are shown on LGTM by default. |
 
 
@@ -74,20 +73,20 @@
 | **Query**                      | **Expected impact**          | **Change**                                                                |
 |--------------------------------|------------------------------|---------------------------------------------------------------------------|
 | Clear-text logging of sensitive information (`js/clear-text-logging`) | More results | More results involving `process.env` and indirect calls to logging methods are recognized. |
-| Duplicate parameter names (`js/duplicate-parameter-name`) | Fewer results | This query now ignores additional parameters that reasonably can have duplicated names. |
+| Duplicate parameter names (`js/duplicate-parameter-name`) | Fewer results | This query now recognizes additional parameters that reasonably can have duplicated names. |
+| Incomplete string escaping or encoding (`js/incomplete-sanitization`) | Fewer false positive results | This query now recognizes additional cases where a single replacement is likely to be intentional. |
+| Unbound event handler receiver (`js/unbound-event-handler-receiver`) | Fewer false positive results | This query now recognizes additional ways event handler receivers can be bound. | 
 | Expression has no effect (`js/useless-expression`) | Fewer false positive results | The query now recognizes block-level flow type annotations and ignores the first statement of a try block. |
-| Identical operands (`js/redundant-operation`) | Fewer results | This query now excludes cases where the operands change a value using ++/-- expressions. |
-| Incomplete string escaping or encoding (`js/incomplete-sanitization`) | Fewer false positive results | This query now recognizes and excludes additional cases where a single replacement is likely to be intentional. |
-| Incomplete URL scheme check (`js/incomplete-url-scheme-check`) | More results | This query now recognizes additional variations of URL scheme checks. |
-| Missing CSRF middleware (`js/missing-token-validation`) | Fewer false positive results | The query reports fewer duplicates and only flags handlers that explicitly access cookie data. |
-| Superfluous trailing arguments (`js/superfluous-trailing-arguments`) | Fewer results | This query now excludes cases where a function uses the `Function.arguments` value to process a variable number of parameters. |
-| Syntax error (`js/syntax-error`) | Lower severity | This results of this query are now displayed with lower severity. |
-| Unbound event handler receiver (`js/unbound-event-handler-receiver`) | Fewer false positive results | This query now recognizes additional ways event handler receivers can be bound. |
-| Uncontrolled command line (`js/command-line-injection`) | More results | This query now recognizes additional ways of constructing arguments to `cmd.exe` and `/bin/sh`. |
-| Uncontrolled data used in path expression (`js/path-injection`) | More results | This query now recognizes additional ways dangerous paths can be constructed and used. |
 | Use of call stack introspection in strict mode (`js/strict-mode-call-stack-introspection`) | Fewer false positive results | The query no longer flags expression statements. |
-| Use of password hash with insufficient computational effort (`js/insufficient-password-hash`) | Fewer false positive results | This query now recognizes and excludes additional cases that do not require secure hashing. |
-| Useless regular-expression character escape (`js/useless-regexp-character-escape`) | Fewer false positive results | This query now distinguishes between escapes in strings and regular expression literals. |
+| Missing CSRF middleware (`js/missing-token-validation`) | Fewer false positive results | The query reports fewer duplicates and only flags handlers that explicitly access cookie data. |
+| Uncontrolled data used in path expression (`js/path-injection`) | More results | This query now recognizes additional ways dangerous paths can be constructed and used. |
+| Uncontrolled command line (`js/command-line-injection`) | More results | This query now recognizes additional ways of constructing arguments to `cmd.exe` and `/bin/sh`. |
+| Syntax error (`js/syntax-error`) | Lower severity | This results of this query are now displayed with lower severity. |
+| Use of password hash with insufficient computational effort (`js/insufficient-password-hash`) | Fewer false positive results | This query now recognizes additional cases that do not require secure hashing. |
+| Useless regular-expression character escape (`js/useless-regexp-character-escape`) | Fewer false positive results | This query now distinguishes escapes in strings and regular expression literals. |
+| Identical operands (`js/redundant-operation`) | Fewer results | This query now recognizes cases where the operands change a value using ++/-- expressions. |
+| Superfluous trailing arguments (`js/superfluous-trailing-arguments`) | Fewer results | This query now recognizes cases where a function uses the `Function.arguments` value to process a variable number of parameters. |
+| Incomplete URL scheme check (`js/incomplete-url-scheme-check`) | More results | This query now recognizes more variations of URL scheme checks. |
 
 ## Changes to libraries
 
@@ -95,6 +94,6 @@
 * An extensible model of the `EventEmitter` pattern has been implemented.
 * Taint-tracking configurations now interact differently with the `data` flow label, which may affect queries
   that combine taint-tracking and flow labels.
-    - Sources added by the 1-argument `isSource` predicate are associated with the `taint` label now, instead of the `data` label.
-    - Sanitizers now only block the `taint` label. As a result, sanitizers no longer block the flow of tainted values wrapped inside a property of an object.
-      To retain the old behavior, instead use a barrier, or block the `data` flow label using a labeled sanitizer.
+  - Sources added by the 1-argument `isSource` predicate are associated with the `taint` label now, instead of the `data` label.
+  - Sanitizers now only block the `taint` label. As a result, sanitizers no longer block the flow of tainted values wrapped inside a property of an object.
+    To retain the old behavior, instead use a barrier, or block the `data` flow label using a labeled sanitizer.

change-notes/1.24/analysis-python.md

@@ -4,52 +4,37 @@ The following changes in version 1.24 affect Python analysis in all applications
 
 ## General improvements
 
-- Support for Django version 2.x and 3.x
+Support for Django version 2.x and 3.x
 
-- Taint tracking now correctly tracks taint in destructuring assignments. For example, if `tainted_list` is a list of tainted tainted elements, then
-    ```python
-    head, *tail = tainted_list
-    ```
-    will result in `tail` being tainted with the same taint as `tainted_list`, and `head` being tainted with the taint of the elements of `tainted_list`.
-
-- A large number of libraries and queries have been moved to the new `Value` API, which should result in more precise results.
-
-- The `Value` interface has been extended in various ways:
-   - A new `StringValue` class has been added, for tracking string literals.
-   - Values now have a `booleanValue` method which returns the boolean interpretation of the given value.
-   - Built-in methods for which the return type is not fixed are now modeled as returning an unknown value by default.
+## New queries
 
+| **Query**                   | **Tags**  | **Purpose**                                                        |
+|-----------------------------|-----------|--------------------------------------------------------------------|
 
 ## Changes to existing queries
 
 | **Query**                  | **Expected impact**    | **Change**                                                       |
 |----------------------------|------------------------|------------------------------------------------------------------|
-| Arbitrary file write during tarfile extraction (`py/tarslip`) | Fewer false negative results | Negations are now handled correctly in conditional expressions that may sanitize tainted values. |
-| First parameter of a method is not named 'self' (`py/not-named-self`) | Fewer false positive results | `__class_getitem__` is now recognized as a class method. |
-| Import of deprecated module (`py/import-deprecated-module`) | Fewer false positive results | Deprecated modules that are used to provide backwards compatibility are no longer reported.|
-| Module imports itself (`py/import-own-module`) | Fewer false positive results | Imports local to a given package are no longer classified as self-imports. |
-| Uncontrolled command line (`py/command-line-injection`) | More results | We now model the `fabric` and `invoke` packages for command execution. |
+| Uncontrolled command line (`py/command-line-injection`) | More results | We now model the `fabric` and `invoke` pacakges for command execution. |
 
 ### Web framework support
 
-The CodeQL library has improved support for the web frameworks: Bottle, CherryPy, Falcon, Pyramid, TurboGears, Tornado, and Twisted. They now provide a proper `HttpRequestTaintSource`, instead of a `TaintSource`. This will enable results for the following queries:
+The QL-library support for the web frameworks Bottle, CherryPy, Falcon, Pyramid, TurboGears, Tornado, and Twisted have
+been fixed so they provide a proper HttpRequestTaintSource, instead of a TaintSource. This will enable results for the following queries:
 
-- `py/path-injection`
-- `py/command-line-injection`
-- `py/reflective-xss`
-- `py/sql-injection`
-- `py/code-injection`
-- `py/unsafe-deserialization`
-- `py/url-redirection`
+- py/path-injection
+- py/command-line-injection
+- py/reflective-xss
+- py/sql-injection
+- py/code-injection
+- py/unsafe-deserialization
+- py/url-redirection
 
-The library also has improved support for the web framework Twisted. It now provides a proper
-`HttpResponseTaintSink`, instead of a `TaintSink`. This will enable results for the following
+The QL-library support for the web framework Twisted have been fixed so they provide a proper
+HttpResponseTaintSink, instead of a TaintSink. This will enable results for the following
 queries:
 
-- `py/reflective-xss`
-- `py/stack-trace-exposure`
+- py/reflective-xss
+- py/stack-trace-exposure
 
 ## Changes to libraries
-### Taint tracking
-- The `urlsplit` and `urlparse` functions now propagate taint appropriately.
-- HTTP requests using the `requests` library are now modeled.

change-notes/1.25/analysis-cpp.md

@@ -1,46 +0,0 @@
-# Improvements to C/C++ analysis
-
-The following changes in version 1.25 affect C/C++ analysis in all applications.
-
-## General improvements
-
-## New queries
-
-| **Query**                   | **Tags**  | **Purpose**                                                        |
-|-----------------------------|-----------|--------------------------------------------------------------------|
-
-## Changes to existing queries
-
-| **Query**                  | **Expected impact**    | **Change**                                                       |
-|----------------------------|------------------------|------------------------------------------------------------------|
-| Uncontrolled format string (`cpp/tainted-format-string`) |  | This query is now displayed by default on LGTM. |
-| Uncontrolled format string (through global variable) (`cpp/tainted-format-string-through-global`) |  | This query is now displayed by default on LGTM. |
-
-## Changes to libraries
-
-* The library `VCS.qll` and all queries that imported it have been removed.
-* The data-flow library has been improved, which affects most security queries by potentially
-  adding more results. Flow through functions now takes nested field reads/writes into account.
-  For example, the library is able to track flow from `taint()` to `sink()` via the method
-  `getf2f1()` in
-  ```c
-  struct C {
-      int f1;
-  };
-
-  struct C2
-  {
-      C f2;
-
-      int getf2f1() {
-          return f2.f1; // Nested field read
-      }
-
-      void m() {
-          f2.f1 = taint();
-          sink(getf2f1()); // NEW: taint() reaches here
-      }
-  };
-  ```
-* The security pack taint tracking library (`semmle.code.cpp.security.TaintTracking`) now considers that equality checks may block the flow of taint.  This results in fewer false positive results from queries that use this library.
-* The length of a tainted string (such as the return value of a call to `strlen` or `strftime` with tainted parameters) is no longer itself considered tainted by the `models` library.  This leads to fewer false positive results in queries that use any of our taint libraries.

change-notes/1.25/analysis-csharp.md

@@ -1,78 +0,0 @@
-# Improvements to C# analysis
-
-The following changes in version 1.25 affect C# analysis in all applications.
-
-## New queries
-
-| **Query**                   | **Tags**  | **Purpose**                                                        |
-|-----------------------------|-----------|--------------------------------------------------------------------|
-
-
-## Changes to existing queries
-
-| **Query**                    | **Expected impact**    | **Change**                        |
-|------------------------------|------------------------|-----------------------------------|
-
-
-## Removal of old queries
-
-## Changes to code extraction
-
-* Index initializers, of the form `{ [1] = "one" }`, are extracted correctly. Previously, the kind of the
-  expression was incorrect, and the index was not extracted.
-
-## Changes to libraries
-
-* The class `UnboundGeneric` has been refined to only be those declarations that actually
-  have type parameters. This means that non-generic nested types inside constructed types,
-  such as `A<int>.B`, no longer are considered unbound generics. (Such nested types do,
-  however, still have relevant `.getSourceDeclaration()`s, for example `A<>.B`.)
-* The data-flow library has been improved, which affects most security queries by potentially
-  adding more results:
-  - Flow through methods now takes nested field reads/writes into account.
-    For example, the library is able to track flow from `"taint"` to `Sink()` via the method
-    `GetF2F1()` in
-    ```csharp
-    class C1
-    {
-        string F1;
-    }
-
-    class C2
-    {
-        C1 F2;
-
-        string GetF2F1() => F2.F1; // Nested field read
-
-        void M()
-        {
-            F2 = new C1() { F1 = "taint" };
-            Sink(GetF2F1()); // NEW: "taint" reaches here
-        }
-    }
-    ```
-  - Flow through collections is now modeled precisely. For example, instead of modeling an array
-    store `a[i] = x` as a taint-step from `x` to `a`, we now model it as a data-flow step that
-    stores `x` into `a`. To get the value back out, a matching read step must be taken.
-
-    For source-code based data-flow analysis, the following constructs are modeled as stores into
-    collections:
-    - Direct array assignments, `a[i] = x`.
-    - Array initializers, `new [] { x }`.
-    - C# 6-style array initializers, `new C() { Array = { [i] = x } }`.
-    - Call arguments that match a `params` parameter, where the C# compiler creates an array under-the-hood.
-    - `yield return` statements.
-
-    The following source-code constructs read from a collection:
-    - Direct array reads, `a[i]`.
-    - `foreach` statements.
-
-    For calls out to library code, existing flow summaries have been refined to precisely
-    capture how they interact with collection contents. For example, a call to
-    `System.Collections.Generic.List<T>.Add(T)` stores the value of the argument into the
-    qualifier, and a call to `System.Collections.Generic.List<T>.get_Item(int)` (that is, an
-    indexer call) reads contents out of the qualifier. Moreover, the effect of
-    collection-clearing methods such as `System.Collections.Generic.List<T>.Clear()` is now
-    also modeled.
-
-## Changes to autobuilder

change-notes/1.25/analysis-java.md

@@ -1,49 +0,0 @@
-# Improvements to Java analysis
-
-The following changes in version 1.25 affect Java analysis in all applications.
-
-## General improvements
-
-The Java autobuilder has been improved to detect more Gradle Java versions.
-
-## Changes to existing queries
-
-| **Query**                    | **Expected impact**    | **Change**                        |
-|------------------------------|------------------------|-----------------------------------|
-| Hard-coded credential in API call (`java/hardcoded-credential-api-call`) | More results | The query now recognizes the `BasicAWSCredentials` class of the Amazon client SDK library with hardcoded access key/secret key. |
-| Deserialization of user-controlled data (`java/unsafe-deserialization`) | Fewer false positive results | The query no longer reports results using `org.apache.commons.io.serialization.ValidatingObjectInputStream`. |
-| Use of a broken or risky cryptographic algorithm (`java/weak-cryptographic-algorithm`) | More results | The query now recognizes the `MessageDigest.getInstance` method. |
-| Use of a potentially broken or risky cryptographic algorithm (`java/potentially-weak-cryptographic-algorithm`) | More results | The query now recognizes the `MessageDigest.getInstance` method. |
-| Reading from a world writable file (`java/world-writable-file-read`) | More results | The query now recognizes more JDK file operations. |
-
-## Changes to libraries
-
-* The data-flow library has been improved with more taint flow modeling for the
-  Collections framework and other classes of the JDK. This affects all security
-  queries using data flow and can yield additional results.
-* The data-flow library has been improved with more taint flow modeling for the
-  Spring framework. This affects all security queries using data flow and can
-  yield additional results on project that rely on the Spring framework.
-* The data-flow library has been improved, which affects most security queries by potentially
-  adding more results. Flow through methods now takes nested field reads/writes into account.
-  For example, the library is able to track flow from `"taint"` to `sink()` via the method
-  `getF2F1()` in
-  ```java
-  class C1 {
-    String f1;
-    C1(String f1) { this.f1 = f1; }
-  }
-
-  class C2 {
-    C1 f2;
-    String getF2F1() {
-        return this.f2.f1; // Nested field read
-    }
-    void m() {
-        this.f2 = new C1("taint");
-        sink(this.getF2F1()); // NEW: "taint" reaches here
-    }
-  }
-  ```
-* The library has been extended with more support for Java 14 features
-  (`switch` expressions and pattern-matching for `instanceof`).

change-notes/1.25/analysis-javascript.md

@@ -1,111 +0,0 @@
-# Improvements to JavaScript analysis
-
-## General improvements
-
-* Support for the following frameworks and libraries has been improved:
-  - [Promise](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Promise)
-  - [bluebird](http://bluebirdjs.com/)
-  - [express](https://www.npmjs.com/package/express)
-  - [execa](https://www.npmjs.com/package/execa)
-  - [fancy-log](https://www.npmjs.com/package/fancy-log)
-  - [fastify](https://www.npmjs.com/package/fastify)
-  - [foreground-child](https://www.npmjs.com/package/foreground-child)
-  - [fstream](https://www.npmjs.com/package/fstream)
-  - [jGrowl](https://github.com/stanlemon/jGrowl)
-  - [jQuery](https://jquery.com/)
-  - [marsdb](https://www.npmjs.com/package/marsdb)
-  - [micro](https://www.npmjs.com/package/micro/)
-  - [minimongo](https://www.npmjs.com/package/minimongo/)
-  - [mssql](https://www.npmjs.com/package/mssql)
-  - [mysql](https://www.npmjs.com/package/mysql)
-  - [npmlog](https://www.npmjs.com/package/npmlog)
-  - [opener](https://www.npmjs.com/package/opener)
-  - [pg](https://www.npmjs.com/package/pg)
-  - [sequelize](https://www.npmjs.com/package/sequelize)
-  - [spanner](https://www.npmjs.com/package/spanner)
-  - [sqlite](https://www.npmjs.com/package/sqlite)
-  - [ssh2-streams](https://www.npmjs.com/package/ssh2-streams)
-  - [ssh2](https://www.npmjs.com/package/ssh2)
-  - [vue](https://www.npmjs.com/package/vue)
-  - [yargs](https://www.npmjs.com/package/yargs)
-  - [webpack-dev-server](https://www.npmjs.com/package/webpack-dev-server)
-
-* TypeScript 4.0 is now supported.
-
-* TypeScript code embedded in HTML and Vue files is now extracted and analyzed.
-
-* The analysis of sanitizers has improved, leading to more accurate
-  results from the security queries.
-
-## New queries
-
-| **Query**                                                                       | **Tags**                                                          | **Purpose**                                                                                                                                                                            |
-|---------------------------------------------------------------------------------|-------------------------------------------------------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
-| DOM text reinterpreted as HTML (`js/xss-through-dom`) | security, external/cwe/cwe-079, external/cwe/cwe-116 | Highlights potential XSS vulnerabilities where existing text from the DOM is used as HTML. Results are shown on LGTM by default. |
-| Incomplete HTML attribute sanitization (`js/incomplete-html-attribute-sanitization`) | security, external/cwe/cwe-20, external/cwe/cwe-079, external/cwe/cwe-116 | Highlights potential XSS vulnerabilities due to incomplete sanitization of HTML meta-characters. Results are shown on LGTM by default. |
-| Unsafe expansion of self-closing HTML tag (`js/unsafe-html-expansion`) | security, external/cwe/cwe-079, external/cwe/cwe-116 | Highlights potential XSS vulnerabilities caused by unsafe expansion of self-closing HTML tags. |
-| Unsafe shell command constructed from library input (`js/shell-command-constructed-from-input`) | correctness, security, external/cwe/cwe-078, external/cwe/cwe-088 | Highlights potential command injections due to a shell command being constructed from library inputs. Results are shown on LGTM by default. |
-| Download of sensitive file through insecure connection (`js/insecure-download`) | security, external/cwe/cwe-829 | Highlights downloads of sensitive files through an unencrypted protocol. Results are shown on LGTM by default. |
-| Exposure of private files (`js/exposure-of-private-files`) | security, external/cwe/cwe-200 | Highlights servers that serve private files. Results are shown on LGTM by default. |
-| Creating biased random numbers from a cryptographically secure source (`js/biased-cryptographic-random`) | security, external/cwe/cwe-327 | Highlights mathematical operations on cryptographically secure numbers that can create biased results. Results are shown on LGTM by default. |
-| Storage of sensitive information in build artifact (`js/build-artifact-leak`) | security, external/cwe/cwe-312 | Highlights storage of sensitive information in build artifacts. Results are shown on LGTM by default. |
-| Improper code sanitization (`js/bad-code-sanitization`) | security, external/cwe/cwe-094, external/cwe/cwe-079, external/cwe/cwe-116 | Highlights string concatenation where code is constructed without proper sanitization. Results are shown on LGTM by default. |
-| Disabling certificate validation (`js/disabling-certificate-validation`) | security, external/cwe-295 | Highlights locations where SSL certificate validation is disabled. Results are shown on LGTM by default. | 
-| Incomplete multi-character sanitization (`js/incomplete-multi-character-sanitization`) | correctness, security, external/cwe/cwe-20, external/cwe/cwe-116 | Highlights sanitizers that fail to remove dangerous substrings completely. Results are shown on LGTM by default. |
-
-## Changes to existing queries
-
-| **Query**                      | **Expected impact**          | **Change**                                                                |
-|--------------------------------|------------------------------|---------------------------------------------------------------------------|
-| Client-side cross-site scripting (`js/xss`) | Fewer results | This query now recognizes additional safe patterns of constructing HTML. |
-| Client-side URL redirect (`js/client-side-unvalidated-url-redirection`) | Fewer results | This query now recognizes additional safe patterns of doing URL redirects. |
-| Code injection (`js/code-injection`) | More results | More potential vulnerabilities involving NoSQL code operators are now recognized. |
-| Exception text reinterpreted as HTML (`js/exception-xss`) | Rephrased and changed visibility | Rephrased name and alert message. Severity lowered from error to warning. Results are now shown on LGTM by default. |
-| Expression has no effect (`js/useless-expression`) | Fewer results | This query no longer flags an expression when that expression is the only content of the containing file. |
-| Hard-coded credentials (`js/hardcoded-credentials`) | More results | This query now recognizes hard-coded credentials sent via HTTP authorization headers. |
-| Incomplete URL scheme check (`js/incomplete-url-scheme-check`) | More results | This query now recognizes additional url scheme checks. |
-| Insecure randomness (`js/insecure-randomness`) | Fewer results | This query now recognizes when an insecure random value is used as a fallback when secure random values are unsupported. |
-| Misspelled variable name (`js/misspelled-variable-name`) | Message changed | The message for this query now correctly identifies the misspelled variable in additional cases. |
-| Non-linear pattern (`js/non-linear-pattern`) | Fewer duplicates and message changed | This query now generates fewer duplicate alerts and has a clearer explanation in case of type annotations used in a pattern. |
-| Prototype pollution in utility function (`js/prototype-pollution-utility`) | More results | This query now recognizes additional utility functions as vulnerable to prototype polution. |
-| Uncontrolled command line (`js/command-line-injection`) | More results | This query now recognizes additional command execution calls. |
-| Uncontrolled data used in path expression (`js/path-injection`) | More results | This query now recognizes additional file system calls. |
-| Uncontrolled data used in path expression (`js/path-injection`) | Fewer results | This query no longer flags paths that have been checked to be part of a collection. |
-| Unknown directive (`js/unknown-directive`) | Fewer results | This query no longer flags directives generated by the Babel compiler. |
-| Unneeded defensive code (`js/unneeded-defensive-code`) | Fewer false-positive results | This query now recognizes checks meant to handle the `document.all` object. |
-| Unused property (`js/unused-property`) | Fewer results | This query no longer flags properties of objects that are operands of `yield` expressions. |
-| Zip Slip (`js/zipslip`) | More results | This query now recognizes additional vulnerabilities. |
-
-The following low-precision queries are no longer run by default on LGTM (their results already were not displayed):
-
-  - `js/angular/dead-event-listener`
-  - `js/angular/unused-dependency`
-  - `js/bitwise-sign-check`
-  - `js/comparison-of-identical-expressions`
-  - `js/conflicting-html-attribute`
-  - `js/ignored-setter-parameter`
-  - `js/jsdoc/malformed-param-tag`
-  - `js/jsdoc/missing-parameter`
-  - `js/jsdoc/unknown-parameter`
-  - `js/json-in-javascript-file`
-  - `js/misspelled-identifier`
-  - `js/nested-loops-with-same-variable`
-  - `js/node/cyclic-import`
-  - `js/node/unused-npm-dependency`
-  - `js/omitted-array-element`
-  - `js/return-outside-function`
-  - `js/single-run-loop`
-  - `js/too-many-parameters`
-  - `js/unused-property`
-  - `js/useless-assignment-to-global`
-
-## Changes to libraries
-
-* A library `semmle.javascript.explore.CallGraph` has been added to help write queries for exploring the call graph.
-* Added data flow for `Map` and `Set`, and added matching type-tracking steps that can accessed using the `CollectionsTypeTracking` module.
-* The data-flow node representing a parameter or destructuring pattern is now always the `ValueNode` corresponding to that AST node. This has a few consequences:
-  - `Parameter.flow()` now gets the correct data flow node for a parameter. Previously this had a result, but the node was disconnected from the data flow graph.
-  - `ParameterNode.asExpr()` and `.getAstNode()` now gets the parameter's AST node, whereas previously it had no result.
-  - `Expr.flow()` now has a more meaningful result for destructuring patterns. Previously this node was disconnected from the data flow graph. Now it represents the values being destructured by the pattern.
-* The global data-flow and taint-tracking libraries now model indirect parameter accesses through the `arguments` object in some cases, which may lead to additional results from some of the security queries, particularly "Prototype pollution in utility function".
-* The predicates `Type.getProperty()` and variants of `Type.getMethod()` have been deprecated due to lack of use-cases. Looking up a named property of a static type is no longer supported, favoring faster extraction times instead.

change-notes/1.25/analysis-python.md

@@ -1,9 +0,0 @@
-# Improvements to Python analysis
-
-* Importing `semmle.python.web.HttpRequest` will no longer import `UntrustedStringKind` transitively. `UntrustedStringKind` is the most commonly used non-abstract subclass of `ExternalStringKind`. If not imported (by one mean or another), taint-tracking queries that concern `ExternalStringKind` will not produce any results. Please ensure such queries contain an explicit import (`import semmle.python.security.strings.Untrusted`).
-* Added model of taint sources for HTTP servers using `http.server`.
-* Added taint modeling of routed parameters in Flask.
-* Improved modeling of built-in methods on strings for taint tracking.
-* Improved classification of test files.
-* New class `BoundMethodValue` represents a bound method during runtime.
-* The query `py/command-line-injection` now recognizes command execution with the `fabric` and `invoke` Python libraries.

change-notes/1.26/analysis-cpp.md

@@ -1,31 +0,0 @@
-# Improvements to C/C++ analysis
-
-The following changes in version 1.26 affect C/C++ analysis in all applications.
-
-## General improvements
-
-## New queries
-
-| **Query**                   | **Tags**  | **Purpose**                                                        |
-|-----------------------------|-----------|--------------------------------------------------------------------|
-
-## Changes to existing queries
-
-| **Query**                  | **Expected impact**    | **Change**                                                       |
-|----------------------------|------------------------|------------------------------------------------------------------|
-| Declaration hides parameter (`cpp/declaration-hides-parameter`) | Fewer false positive results | False positives involving template functions have been fixed. |
-| Inconsistent direction of for loop (`cpp/inconsistent-loop-direction`) | Fewer false positive results | The query now accounts for intentional wrapping of an unsigned loop counter. |
-| Overflow in uncontrolled allocation size (`cpp/uncontrolled-allocation-size`) | | The precision of this query has been decreased from "high" to "medium". As a result, the query is still run but results are no longer displayed on LGTM by default. |
-| Comparison result is always the same (`cpp/constant-comparison`) | More correct results | Bounds on expressions involving multiplication can now be determined in more cases. |
-
-## Changes to libraries
-
-* The QL class `Block`, denoting the `{ ... }` statement, is renamed to `BlockStmt`.
-* The models library now models many taint flows through `std::array`, `std::vector`, `std::deque`, `std::list` and `std::forward_list`.
-* The models library now models many more taint flows through `std::string`.
-* The models library now models many taint flows through `std::istream` and `std::ostream`.
-* The models library now models some taint flows through `std::shared_ptr`, `std::unique_ptr`, `std::make_shared` and `std::make_unique`.
-* The models library now models many taint flows through `std::pair`, `std::map`, `std::unordered_map`, `std::set` and `std::unordered_set`.
-* The models library now models `bcopy`.
-* The `SimpleRangeAnalysis` library now supports multiplications of the form
-  `e1 * e2` and `x *= e2` when `e1` and `e2` are unsigned or constant.

change-notes/1.26/analysis-java.md

@@ -1,20 +0,0 @@
-# Improvements to Java analysis
-
-The following changes in version 1.26 affect Java analysis in all applications.
-
-## General improvements
-
-## New queries
-
-| **Query**                   | **Tags**  | **Purpose**                                                        |
-|-----------------------------|-----------|--------------------------------------------------------------------|
-
-
-## Changes to existing queries
-
-| **Query**                    | **Expected impact**    | **Change**                        |
-|------------------------------|------------------------|-----------------------------------|
-
-
-## Changes to libraries
-

change-notes/1.26/analysis-javascript.md

@@ -1,73 +0,0 @@
-# Improvements to JavaScript analysis
-
-## General improvements
-
-* Angular-specific taint sources and sinks are now recognized by the security queries.
-
-* Support for React has improved, with better handling of react hooks, react-router path parameters, lazy-loaded components, and components transformed using `react-redux` and/or `styled-components`.
-
-* Dynamic imports are now analyzed more precisely.
-
-* Support for the following frameworks and libraries has been improved:
-  - [@angular/*](https://www.npmjs.com/package/@angular/core)
-  - [AWS Serverless](https://docs.aws.amazon.com/serverless-application-model/latest/developerguide/sam-resource-function.html)
-  - [Alibaba Serverless](https://www.alibabacloud.com/help/doc-detail/156876.htm)
-  - [debounce](https://www.npmjs.com/package/debounce)
-  - [bluebird](https://www.npmjs.com/package/bluebird)
-  - [call-limit](https://www.npmjs.com/package/call-limit)
-  - [classnames](https://www.npmjs.com/package/classnames)
-  - [clsx](https://www.npmjs.com/package/clsx)
-  - [express](https://www.npmjs.com/package/express)
-  - [fast-json-stable-stringify](https://www.npmjs.com/package/fast-json-stable-stringify)
-  - [fast-safe-stringify](https://www.npmjs.com/package/fast-safe-stringify)
-  - [http](https://nodejs.org/api/http.html)
-  - [javascript-stringify](https://www.npmjs.com/package/javascript-stringify)
-  - [js-stringify](https://www.npmjs.com/package/js-stringify)
-  - [json-stable-stringify](https://www.npmjs.com/package/json-stable-stringify)
-  - [json-stringify-safe](https://www.npmjs.com/package/json-stringify-safe)
-  - [json3](https://www.npmjs.com/package/json3)
-  - [jQuery throttle / debounce](https://github.com/cowboy/jquery-throttle-debounce)
-  - [lodash](https://www.npmjs.com/package/lodash)
-  - [lodash.debounce](https://www.npmjs.com/package/lodash.debounce)
-  - [lodash.throttle](https://www.npmjs.com/package/lodash.throttle)
-  - [needle](https://www.npmjs.com/package/needle)
-  - [object-inspect](https://www.npmjs.com/package/object-inspect)
-  - [pretty-format](https://www.npmjs.com/package/pretty-format)
-  - [react](https://www.npmjs.com/package/react)
-  - [react-router-dom](https://www.npmjs.com/package/react-router-dom)
-  - [react-redux](https://www.npmjs.com/package/react-redux)
-  - [redis](https://www.npmjs.com/package/redis)
-  - [redux](https://www.npmjs.com/package/redux)
-  - [stringify-object](https://www.npmjs.com/package/stringify-object)
-  - [styled-components](https://www.npmjs.com/package/styled-components)
-  - [throttle-debounce](https://www.npmjs.com/package/throttle-debounce)
-  - [underscore](https://www.npmjs.com/package/underscore)
-
-* Analyzing files with the ".cjs" extension is now supported.
-* ES2021 features are now supported.
-
-## New queries
-
-| **Query**                                                                       | **Tags**                                                          | **Purpose**                                                                                                                                                                            |
-|---------------------------------------------------------------------------------|-------------------------------------------------------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
-
-
-## Changes to existing queries
-
-| **Query**                      | **Expected impact**          | **Change**                                                                |
-|--------------------------------|------------------------------|---------------------------------------------------------------------------|
-| Potentially unsafe external link (`js/unsafe-external-link`) | Fewer results | This query no longer flags URLs constructed using a template system where only the hash or query part of the URL is dynamic. |
-| Incomplete URL substring sanitization (`js/incomplete-url-substring-sanitization`) | More results | This query now recognizes additional URLs when the substring check is an inclusion check. |
-| Ambiguous HTML id attribute (`js/duplicate-html-id`) | Results no longer shown | Precision tag reduced to "low". The query is no longer run by default. |
-| Unused loop iteration variable (`js/unused-loop-variable`) | Fewer results | This query no longer flags variables in a destructuring array assignment that are not the last variable in the destructed array. |
-| Unsafe shell command constructed from library input (`js/shell-command-constructed-from-input`) | More results | This query now recognizes more commands where colon, dash, and underscore are used. |
-| Unsafe jQuery plugin (`js/unsafe-jquery-plugin`) | More results | This query now detects more unsafe uses of nested option properties. |
-| Client-side URL redirect (`js/client-side-unvalidated-url-redirection`) | More results | This query now recognizes some unsafe uses of `importScripts()` inside WebWorkers. |
-| Missing CSRF middleware (`js/missing-token-validation`) | More results | This query now recognizes writes to cookie and session variables as potentially vulnerable to CSRF attacks. |
-| Missing CSRF middleware (`js/missing-token-validation`) | Fewer results | This query now recognizes more ways of protecting against CSRF attacks. |
-| Client-side cross-site scripting (`js/xss`) | More results | This query now tracks data flow from `location.hash` more precisely. |
-
-
-## Changes to libraries
-* The predicate `TypeAnnotation.hasQualifiedName` now works in more cases when the imported library was not present during extraction.
-* The class `DomBasedXss::Configuration` has been deprecated, as it has been split into `DomBasedXss::HtmlInjectionConfiguration` and `DomBasedXss::JQueryHtmlOrSelectorInjectionConfiguration`. Unless specifically working with jQuery sinks, subclasses should instead be based on `HtmlInjectionConfiguration`. To use both configurations in a query, see [Xss.ql](https://github.com/github/codeql/blob/main/javascript/ql/src/Security/CWE-079/Xss.ql) for an example.

change-notes/1.26/analysis-python.md

@@ -1,37 +0,0 @@
-# Improvements to Python analysis
-
-The following changes in version 1.26 affect Python analysis in all applications.
-
-## General improvements
-
-## Changes to existing queries
-
-| **Query**                  | **Expected impact**    | **Change**                                                       |
-|----------------------------|------------------------|------------------------------------------------------------------|
-|`py/unsafe-deserialization` | Different results. | The underlying data flow library has been changed. See below for more details. |
-|`py/path-injection` | Different results. | The underlying data flow library has been changed. See below for more details. |
-|`py/command-line-injection` | Different results. | The underlying data flow library has been changed. See below for more details. |
-|`py/reflective-xss` | Different results. | The underlying data flow library has been changed. See below for more details. |
-|`py/sql-injection` | Different results. | The underlying data flow library has been changed. See below for more details. |
-|`py/code-injection` | Different results. | The underlying data flow library has been changed. See below for more details. |
-## Changes to libraries
-* Some of the security queries now use the shared data flow library for data flow and taint tracking. This has resulted in an overall more robust and accurate analysis. The libraries mentioned below have been modelled in this new framework. Other libraries (e.g. the web framework `CherryPy`) have not been modelled yet, and this may lead to a temporary loss of results for these frameworks.
-* Improved modelling of the following serialization libraries:
-  - `PyYAML`
-  - `dill`
-  - `pickle`
-  - `marshal`
-* Improved modelling of the following web frameworks:
-  - `Django` (Note that modelling of class-based response handlers is currently incomplete.)
-  - `Flask`
-* Support for Werkzeug `MultiDict`.
-* Support for the [Python Database API Specification v2.0 (PEP-249)](https://www.python.org/dev/peps/pep-0249/), including the following libraries:
-  - `MySQLdb`
-  - `mysql-connector-python`
-  - `django.db`
-* Improved modelling of the following command execution libraries:
-  - `Fabric`
-  - `Invoke`
-* Improved modelling of security-related standard library modules, such as `os`, `popen2`, `platform`, and `base64`.
-* The original versions of the updated queries have been preserved [here](https://github.com/github/codeql/tree/main/python/ql/src/experimental/Security-old-dataflow).
-* Added taint tracking support for string formatting through f-strings.

config/identical-files.json

@@ -1,5 +1,5 @@
 {
-  "DataFlow Java/C++/C#/Python": [
+  "DataFlow Java/C++/C#": [
     "java/ql/src/semmle/code/java/dataflow/internal/DataFlowImpl.qll",
     "java/ql/src/semmle/code/java/dataflow/internal/DataFlowImpl2.qll",
     "java/ql/src/semmle/code/java/dataflow/internal/DataFlowImpl3.qll",
@@ -18,20 +18,15 @@
     "csharp/ql/src/semmle/code/csharp/dataflow/internal/DataFlowImpl2.qll",
     "csharp/ql/src/semmle/code/csharp/dataflow/internal/DataFlowImpl3.qll",
     "csharp/ql/src/semmle/code/csharp/dataflow/internal/DataFlowImpl4.qll",
-    "csharp/ql/src/semmle/code/csharp/dataflow/internal/DataFlowImpl5.qll",
-    "python/ql/src/semmle/python/dataflow/new/internal/DataFlowImpl.qll",
-    "python/ql/src/semmle/python/dataflow/new/internal/DataFlowImpl2.qll",
-    "python/ql/src/semmle/python/dataflow/new/internal/DataFlowImpl3.qll",
-    "python/ql/src/semmle/python/dataflow/new/internal/DataFlowImpl4.qll"
+    "csharp/ql/src/semmle/code/csharp/dataflow/internal/DataFlowImpl5.qll"
   ],
-  "DataFlow Java/C++/C#/Python Common": [
+  "DataFlow Java/C++/C# Common": [
     "java/ql/src/semmle/code/java/dataflow/internal/DataFlowImplCommon.qll",
     "cpp/ql/src/semmle/code/cpp/dataflow/internal/DataFlowImplCommon.qll",
     "cpp/ql/src/semmle/code/cpp/ir/dataflow/internal/DataFlowImplCommon.qll",
-    "csharp/ql/src/semmle/code/csharp/dataflow/internal/DataFlowImplCommon.qll",
-    "python/ql/src/semmle/python/dataflow/new/internal/DataFlowImplCommon.qll"
+    "csharp/ql/src/semmle/code/csharp/dataflow/internal/DataFlowImplCommon.qll"
   ],
-  "TaintTracking::Configuration Java/C++/C#/Python": [
+  "TaintTracking::Configuration Java/C++/C#": [
     "cpp/ql/src/semmle/code/cpp/dataflow/internal/tainttracking1/TaintTrackingImpl.qll",
     "cpp/ql/src/semmle/code/cpp/dataflow/internal/tainttracking2/TaintTrackingImpl.qll",
     "cpp/ql/src/semmle/code/cpp/ir/dataflow/internal/tainttracking1/TaintTrackingImpl.qll",
@@ -42,38 +37,13 @@
     "csharp/ql/src/semmle/code/csharp/dataflow/internal/tainttracking4/TaintTrackingImpl.qll",
     "csharp/ql/src/semmle/code/csharp/dataflow/internal/tainttracking5/TaintTrackingImpl.qll",
     "java/ql/src/semmle/code/java/dataflow/internal/tainttracking1/TaintTrackingImpl.qll",
-    "java/ql/src/semmle/code/java/dataflow/internal/tainttracking2/TaintTrackingImpl.qll",
-    "python/ql/src/semmle/python/dataflow/new/internal/tainttracking1/TaintTrackingImpl.qll",
-    "python/ql/src/semmle/python/dataflow/new/internal/tainttracking2/TaintTrackingImpl.qll",
-    "python/ql/src/semmle/python/dataflow/new/internal/tainttracking3/TaintTrackingImpl.qll",
-    "python/ql/src/semmle/python/dataflow/new/internal/tainttracking4/TaintTrackingImpl.qll"
+    "java/ql/src/semmle/code/java/dataflow/internal/tainttracking2/TaintTrackingImpl.qll"
   ],
-  "DataFlow Java/C++/C#/Python Consistency checks": [
+  "DataFlow Java/C++/C# Consistency checks": [
     "java/ql/src/semmle/code/java/dataflow/internal/DataFlowImplConsistency.qll",
     "cpp/ql/src/semmle/code/cpp/dataflow/internal/DataFlowImplConsistency.qll",
     "cpp/ql/src/semmle/code/cpp/ir/dataflow/internal/DataFlowImplConsistency.qll",
-    "csharp/ql/src/semmle/code/csharp/dataflow/internal/DataFlowImplConsistency.qll",
-    "python/ql/src/semmle/python/dataflow/new/internal/DataFlowImplConsistency.qll"
-  ],
-  "SsaReadPosition Java/C#": [
-    "java/ql/src/semmle/code/java/dataflow/internal/rangeanalysis/SsaReadPositionCommon.qll",
-    "csharp/ql/src/semmle/code/csharp/dataflow/internal/rangeanalysis/SsaReadPositionCommon.qll"
-  ],
-  "Sign Java/C#": [
-    "java/ql/src/semmle/code/java/dataflow/internal/rangeanalysis/Sign.qll",
-    "csharp/ql/src/semmle/code/csharp/dataflow/internal/rangeanalysis/Sign.qll"
-  ],
-  "SignAnalysis Java/C#": [
-    "java/ql/src/semmle/code/java/dataflow/internal/rangeanalysis/SignAnalysisCommon.qll",
-    "csharp/ql/src/semmle/code/csharp/dataflow/internal/rangeanalysis/SignAnalysisCommon.qll"
-  ],
-  "Bound Java/C#": [
-    "java/ql/src/semmle/code/java/dataflow/Bound.qll",
-    "csharp/ql/src/semmle/code/csharp/dataflow/Bound.qll"
-  ],
-  "ModulusAnalysis Java/C#": [
-    "java/ql/src/semmle/code/java/dataflow/ModulusAnalysis.qll",
-    "csharp/ql/src/semmle/code/csharp/dataflow/ModulusAnalysis.qll"
+    "csharp/ql/src/semmle/code/csharp/dataflow/internal/DataFlowImplConsistency.qll"
   ],
   "C++ SubBasicBlocks": [
     "cpp/ql/src/semmle/code/cpp/controlflow/SubBasicBlocks.qll",
@@ -83,122 +53,114 @@
     "cpp/ql/src/semmle/code/cpp/ir/implementation/raw/Instruction.qll",
     "cpp/ql/src/semmle/code/cpp/ir/implementation/unaliased_ssa/Instruction.qll",
     "cpp/ql/src/semmle/code/cpp/ir/implementation/aliased_ssa/Instruction.qll",
-    "csharp/ql/src/experimental/ir/implementation/raw/Instruction.qll",
-    "csharp/ql/src/experimental/ir/implementation/unaliased_ssa/Instruction.qll"
+    "csharp/ql/src/semmle/code/csharp/ir/implementation/raw/Instruction.qll",
+    "csharp/ql/src/semmle/code/csharp/ir/implementation/unaliased_ssa/Instruction.qll"
   ],
   "IR IRBlock": [
     "cpp/ql/src/semmle/code/cpp/ir/implementation/raw/IRBlock.qll",
     "cpp/ql/src/semmle/code/cpp/ir/implementation/unaliased_ssa/IRBlock.qll",
     "cpp/ql/src/semmle/code/cpp/ir/implementation/aliased_ssa/IRBlock.qll",
-    "csharp/ql/src/experimental/ir/implementation/raw/IRBlock.qll",
-    "csharp/ql/src/experimental/ir/implementation/unaliased_ssa/IRBlock.qll"
+    "csharp/ql/src/semmle/code/csharp/ir/implementation/raw/IRBlock.qll",
+    "csharp/ql/src/semmle/code/csharp/ir/implementation/unaliased_ssa/IRBlock.qll"
   ],
   "IR IRVariable": [
     "cpp/ql/src/semmle/code/cpp/ir/implementation/raw/IRVariable.qll",
     "cpp/ql/src/semmle/code/cpp/ir/implementation/unaliased_ssa/IRVariable.qll",
     "cpp/ql/src/semmle/code/cpp/ir/implementation/aliased_ssa/IRVariable.qll",
-    "csharp/ql/src/experimental/ir/implementation/raw/IRVariable.qll",
-    "csharp/ql/src/experimental/ir/implementation/unaliased_ssa/IRVariable.qll"
+    "csharp/ql/src/semmle/code/csharp/ir/implementation/raw/IRVariable.qll",
+    "csharp/ql/src/semmle/code/csharp/ir/implementation/unaliased_ssa/IRVariable.qll"
   ],
   "IR IRFunction": [
     "cpp/ql/src/semmle/code/cpp/ir/implementation/raw/IRFunction.qll",
     "cpp/ql/src/semmle/code/cpp/ir/implementation/unaliased_ssa/IRFunction.qll",
     "cpp/ql/src/semmle/code/cpp/ir/implementation/aliased_ssa/IRFunction.qll",
-    "csharp/ql/src/experimental/ir/implementation/raw/IRFunction.qll",
-    "csharp/ql/src/experimental/ir/implementation/unaliased_ssa/IRFunction.qll"
+    "csharp/ql/src/semmle/code/csharp/ir/implementation/raw/IRFunction.qll",
+    "csharp/ql/src/semmle/code/csharp/ir/implementation/unaliased_ssa/IRFunction.qll"
   ],
   "IR Operand": [
     "cpp/ql/src/semmle/code/cpp/ir/implementation/raw/Operand.qll",
     "cpp/ql/src/semmle/code/cpp/ir/implementation/unaliased_ssa/Operand.qll",
     "cpp/ql/src/semmle/code/cpp/ir/implementation/aliased_ssa/Operand.qll",
-    "csharp/ql/src/experimental/ir/implementation/raw/Operand.qll",
-    "csharp/ql/src/experimental/ir/implementation/unaliased_ssa/Operand.qll"
+    "csharp/ql/src/semmle/code/csharp/ir/implementation/raw/Operand.qll",
+    "csharp/ql/src/semmle/code/csharp/ir/implementation/unaliased_ssa/Operand.qll" 
   ],
   "IR IRType": [
     "cpp/ql/src/semmle/code/cpp/ir/implementation/IRType.qll",
-    "csharp/ql/src/experimental/ir/implementation/IRType.qll"
+    "csharp/ql/src/semmle/code/csharp/ir/implementation/IRType.qll"
   ],
   "IR IRConfiguration": [
     "cpp/ql/src/semmle/code/cpp/ir/implementation/IRConfiguration.qll",
-    "csharp/ql/src/experimental/ir/implementation/IRConfiguration.qll"
+    "csharp/ql/src/semmle/code/csharp/ir/implementation/IRConfiguration.qll"
   ],
   "IR UseSoundEscapeAnalysis": [
     "cpp/ql/src/semmle/code/cpp/ir/implementation/UseSoundEscapeAnalysis.qll",
-    "csharp/ql/src/experimental/ir/implementation/UseSoundEscapeAnalysis.qll"
-  ],
-  "IR IRFunctionBase": [
-    "cpp/ql/src/semmle/code/cpp/ir/implementation/internal/IRFunctionBase.qll",
-    "csharp/ql/src/experimental/ir/implementation/internal/IRFunctionBase.qll"
+    "csharp/ql/src/semmle/code/csharp/ir/implementation/UseSoundEscapeAnalysis.qll"
   ],
   "IR Operand Tag": [
     "cpp/ql/src/semmle/code/cpp/ir/implementation/internal/OperandTag.qll",
-    "csharp/ql/src/experimental/ir/implementation/internal/OperandTag.qll"
+    "csharp/ql/src/semmle/code/csharp/ir/implementation/internal/OperandTag.qll"
   ],
-  "IR TInstruction": [
-    "cpp/ql/src/semmle/code/cpp/ir/implementation/internal/TInstruction.qll",
-    "csharp/ql/src/experimental/ir/implementation/internal/TInstruction.qll"
-  ],
-  "IR TIRVariable": [
+  "IR TIRVariable":[
     "cpp/ql/src/semmle/code/cpp/ir/implementation/internal/TIRVariable.qll",
-    "csharp/ql/src/experimental/ir/implementation/internal/TIRVariable.qll"
+    "csharp/ql/src/semmle/code/csharp/ir/implementation/internal/TIRVariable.qll"
   ],
   "IR IR": [
     "cpp/ql/src/semmle/code/cpp/ir/implementation/raw/IR.qll",
     "cpp/ql/src/semmle/code/cpp/ir/implementation/unaliased_ssa/IR.qll",
     "cpp/ql/src/semmle/code/cpp/ir/implementation/aliased_ssa/IR.qll",
-    "csharp/ql/src/experimental/ir/implementation/raw/IR.qll",
-    "csharp/ql/src/experimental/ir/implementation/unaliased_ssa/IR.qll"
+    "csharp/ql/src/semmle/code/csharp/ir/implementation/raw/IR.qll",
+    "csharp/ql/src/semmle/code/csharp/ir/implementation/unaliased_ssa/IR.qll"
   ],
-  "IR IRConsistency": [
-    "cpp/ql/src/semmle/code/cpp/ir/implementation/raw/IRConsistency.qll",
-    "cpp/ql/src/semmle/code/cpp/ir/implementation/unaliased_ssa/IRConsistency.qll",
-    "cpp/ql/src/semmle/code/cpp/ir/implementation/aliased_ssa/IRConsistency.qll",
-    "csharp/ql/src/experimental/ir/implementation/raw/IRConsistency.qll",
-    "csharp/ql/src/experimental/ir/implementation/unaliased_ssa/IRConsistency.qll"
+  "IR IRSanity": [
+    "cpp/ql/src/semmle/code/cpp/ir/implementation/raw/IRSanity.qll",
+    "cpp/ql/src/semmle/code/cpp/ir/implementation/unaliased_ssa/IRSanity.qll",
+    "cpp/ql/src/semmle/code/cpp/ir/implementation/aliased_ssa/IRSanity.qll",
+    "csharp/ql/src/semmle/code/csharp/ir/implementation/raw/IRSanity.qll",
+    "csharp/ql/src/semmle/code/csharp/ir/implementation/unaliased_ssa/IRSanity.qll"
   ],
   "IR PrintIR": [
     "cpp/ql/src/semmle/code/cpp/ir/implementation/raw/PrintIR.qll",
     "cpp/ql/src/semmle/code/cpp/ir/implementation/unaliased_ssa/PrintIR.qll",
     "cpp/ql/src/semmle/code/cpp/ir/implementation/aliased_ssa/PrintIR.qll",
-    "csharp/ql/src/experimental/ir/implementation/raw/PrintIR.qll",
-    "csharp/ql/src/experimental/ir/implementation/unaliased_ssa/PrintIR.qll"
+    "csharp/ql/src/semmle/code/csharp/ir/implementation/raw/PrintIR.qll",
+    "csharp/ql/src/semmle/code/csharp/ir/implementation/unaliased_ssa/PrintIR.qll"
   ],
   "IR IntegerConstant": [
     "cpp/ql/src/semmle/code/cpp/ir/internal/IntegerConstant.qll",
-    "csharp/ql/src/experimental/ir/internal/IntegerConstant.qll"
+    "csharp/ql/src/semmle/code/csharp/ir/internal/IntegerConstant.qll"
   ],
   "IR IntegerInteval": [
     "cpp/ql/src/semmle/code/cpp/ir/internal/IntegerInterval.qll",
-    "csharp/ql/src/experimental/ir/internal/IntegerInterval.qll"
+    "csharp/ql/src/semmle/code/csharp/ir/internal/IntegerInterval.qll"
   ],
   "IR IntegerPartial": [
     "cpp/ql/src/semmle/code/cpp/ir/internal/IntegerPartial.qll",
-    "csharp/ql/src/experimental/ir/internal/IntegerPartial.qll"
+    "csharp/ql/src/semmle/code/csharp/ir/internal/IntegerPartial.qll"
   ],
   "IR Overlap": [
     "cpp/ql/src/semmle/code/cpp/ir/internal/Overlap.qll",
-    "csharp/ql/src/experimental/ir/internal/Overlap.qll"
+    "csharp/ql/src/semmle/code/csharp/ir/internal/Overlap.qll"
   ],
   "IR EdgeKind": [
     "cpp/ql/src/semmle/code/cpp/ir/implementation/EdgeKind.qll",
-    "csharp/ql/src/experimental/ir/implementation/EdgeKind.qll"
+    "csharp/ql/src/semmle/code/csharp/ir/implementation/EdgeKind.qll"
   ],
   "IR MemoryAccessKind": [
     "cpp/ql/src/semmle/code/cpp/ir/implementation/MemoryAccessKind.qll",
-    "csharp/ql/src/experimental/ir/implementation/MemoryAccessKind.qll"
+    "csharp/ql/src/semmle/code/csharp/ir/implementation/MemoryAccessKind.qll"
   ],
   "IR TempVariableTag": [
     "cpp/ql/src/semmle/code/cpp/ir/implementation/TempVariableTag.qll",
-    "csharp/ql/src/experimental/ir/implementation/TempVariableTag.qll"
+    "csharp/ql/src/semmle/code/csharp/ir/implementation/TempVariableTag.qll"
   ],
   "IR Opcode": [
     "cpp/ql/src/semmle/code/cpp/ir/implementation/Opcode.qll",
-    "csharp/ql/src/experimental/ir/implementation/Opcode.qll"
+    "csharp/ql/src/semmle/code/csharp/ir/implementation/Opcode.qll"
   ],
-  "IR SSAConsistency": [
-    "cpp/ql/src/semmle/code/cpp/ir/implementation/unaliased_ssa/internal/SSAConsistency.qll",
-    "cpp/ql/src/semmle/code/cpp/ir/implementation/aliased_ssa/internal/SSAConsistency.qll",
-    "csharp/ql/src/experimental/ir/implementation/unaliased_ssa/internal/SSAConsistency.qll"
+  "IR SSASanity": [
+    "cpp/ql/src/semmle/code/cpp/ir/implementation/unaliased_ssa/internal/SSASanity.qll",
+    "cpp/ql/src/semmle/code/cpp/ir/implementation/aliased_ssa/internal/SSASanity.qll",
+    "csharp/ql/src/semmle/code/csharp/ir/implementation/unaliased_ssa/internal/SSASanity.qll"
   ],
   "C++ IR InstructionImports": [
     "cpp/ql/src/semmle/code/cpp/ir/implementation/raw/internal/InstructionImports.qll",
@@ -215,11 +177,6 @@
     "cpp/ql/src/semmle/code/cpp/ir/implementation/unaliased_ssa/internal/IRBlockImports.qll",
     "cpp/ql/src/semmle/code/cpp/ir/implementation/aliased_ssa/internal/IRBlockImports.qll"
   ],
-  "C++ IR IRFunctionImports": [
-    "cpp/ql/src/semmle/code/cpp/ir/implementation/raw/internal/IRFunctionImports.qll",
-    "cpp/ql/src/semmle/code/cpp/ir/implementation/unaliased_ssa/internal/IRFunctionImports.qll",
-    "cpp/ql/src/semmle/code/cpp/ir/implementation/aliased_ssa/internal/IRFunctionImports.qll"
-  ],
   "C++ IR IRVariableImports": [
     "cpp/ql/src/semmle/code/cpp/ir/implementation/raw/internal/IRVariableImports.qll",
     "cpp/ql/src/semmle/code/cpp/ir/implementation/unaliased_ssa/internal/IRVariableImports.qll",
@@ -242,7 +199,7 @@
   "SSA AliasAnalysis": [
     "cpp/ql/src/semmle/code/cpp/ir/implementation/unaliased_ssa/internal/AliasAnalysis.qll",
     "cpp/ql/src/semmle/code/cpp/ir/implementation/aliased_ssa/internal/AliasAnalysis.qll",
-    "csharp/ql/src/experimental/ir/implementation/unaliased_ssa/internal/AliasAnalysis.qll"
+    "csharp/ql/src/semmle/code/csharp/ir/implementation/unaliased_ssa/internal/AliasAnalysis.qll"
   ],
   "C++ SSA AliasAnalysisImports": [
     "cpp/ql/src/semmle/code/cpp/ir/implementation/unaliased_ssa/internal/AliasAnalysisImports.qll",
@@ -255,42 +212,42 @@
   ],
   "IR SSA SimpleSSA": [
     "cpp/ql/src/semmle/code/cpp/ir/implementation/unaliased_ssa/internal/SimpleSSA.qll",
-    "csharp/ql/src/experimental/ir/implementation/unaliased_ssa/internal/SimpleSSA.qll"
+    "csharp/ql/src/semmle/code/csharp/ir/implementation/unaliased_ssa/internal/SimpleSSA.qll"
   ],
   "IR AliasConfiguration (unaliased_ssa)": [
     "cpp/ql/src/semmle/code/cpp/ir/implementation/unaliased_ssa/internal/AliasConfiguration.qll",
-    "csharp/ql/src/experimental/ir/implementation/unaliased_ssa/internal/AliasConfiguration.qll"
+    "csharp/ql/src/semmle/code/csharp/ir/implementation/unaliased_ssa/internal/AliasConfiguration.qll"
   ],
   "IR SSA SSAConstruction": [
     "cpp/ql/src/semmle/code/cpp/ir/implementation/unaliased_ssa/internal/SSAConstruction.qll",
     "cpp/ql/src/semmle/code/cpp/ir/implementation/aliased_ssa/internal/SSAConstruction.qll",
-    "csharp/ql/src/experimental/ir/implementation/unaliased_ssa/internal/SSAConstruction.qll"
+    "csharp/ql/src/semmle/code/csharp/ir/implementation/unaliased_ssa/internal/SSAConstruction.qll"
   ],
   "IR SSA PrintSSA": [
     "cpp/ql/src/semmle/code/cpp/ir/implementation/unaliased_ssa/internal/PrintSSA.qll",
     "cpp/ql/src/semmle/code/cpp/ir/implementation/aliased_ssa/internal/PrintSSA.qll",
-    "csharp/ql/src/experimental/ir/implementation/unaliased_ssa/internal/PrintSSA.qll"
+    "csharp/ql/src/semmle/code/csharp/ir/implementation/unaliased_ssa/internal/PrintSSA.qll"
   ],
   "IR ValueNumberInternal": [
     "cpp/ql/src/semmle/code/cpp/ir/implementation/raw/gvn/internal/ValueNumberingInternal.qll",
     "cpp/ql/src/semmle/code/cpp/ir/implementation/unaliased_ssa/gvn/internal/ValueNumberingInternal.qll",
     "cpp/ql/src/semmle/code/cpp/ir/implementation/aliased_ssa/gvn/internal/ValueNumberingInternal.qll",
-    "csharp/ql/src/experimental/ir/implementation/raw/gvn/internal/ValueNumberingInternal.qll",
-    "csharp/ql/src/experimental/ir/implementation/unaliased_ssa/gvn/internal/ValueNumberingInternal.qll"
+    "csharp/ql/src/semmle/code/csharp/ir/implementation/raw/gvn/internal/ValueNumberingInternal.qll",
+    "csharp/ql/src/semmle/code/csharp/ir/implementation/unaliased_ssa/gvn/internal/ValueNumberingInternal.qll"
   ],
   "C++ IR ValueNumber": [
     "cpp/ql/src/semmle/code/cpp/ir/implementation/raw/gvn/ValueNumbering.qll",
     "cpp/ql/src/semmle/code/cpp/ir/implementation/unaliased_ssa/gvn/ValueNumbering.qll",
     "cpp/ql/src/semmle/code/cpp/ir/implementation/aliased_ssa/gvn/ValueNumbering.qll",
-    "csharp/ql/src/experimental/ir/implementation/raw/gvn/ValueNumbering.qll",
-    "csharp/ql/src/experimental/ir/implementation/unaliased_ssa/gvn/ValueNumbering.qll"
+    "csharp/ql/src/semmle/code/csharp/ir/implementation/raw/gvn/ValueNumbering.qll",
+    "csharp/ql/src/semmle/code/csharp/ir/implementation/unaliased_ssa/gvn/ValueNumbering.qll"
   ],
   "C++ IR PrintValueNumbering": [
     "cpp/ql/src/semmle/code/cpp/ir/implementation/raw/gvn/PrintValueNumbering.qll",
     "cpp/ql/src/semmle/code/cpp/ir/implementation/unaliased_ssa/gvn/PrintValueNumbering.qll",
     "cpp/ql/src/semmle/code/cpp/ir/implementation/aliased_ssa/gvn/PrintValueNumbering.qll",
-    "csharp/ql/src/experimental/ir/implementation/raw/gvn/PrintValueNumbering.qll",
-    "csharp/ql/src/experimental/ir/implementation/unaliased_ssa/gvn/PrintValueNumbering.qll"
+    "csharp/ql/src/semmle/code/csharp/ir/implementation/raw/gvn/PrintValueNumbering.qll",
+    "csharp/ql/src/semmle/code/csharp/ir/implementation/unaliased_ssa/gvn/PrintValueNumbering.qll"
   ],
   "C++ IR ConstantAnalysis": [
     "cpp/ql/src/semmle/code/cpp/ir/implementation/raw/constant/ConstantAnalysis.qll",
@@ -319,44 +276,32 @@
     "cpp/ql/src/semmle/code/cpp/ir/implementation/unaliased_ssa/internal/reachability/PrintDominance.qll"
   ],
   "C# IR InstructionImports": [
-    "csharp/ql/src/experimental/ir/implementation/raw/internal/InstructionImports.qll",
-    "csharp/ql/src/experimental/ir/implementation/unaliased_ssa/internal/InstructionImports.qll"
+    "csharp/ql/src/semmle/code/csharp/ir/implementation/raw/internal/InstructionImports.qll",
+    "csharp/ql/src/semmle/code/csharp/ir/implementation/unaliased_ssa/internal/InstructionImports.qll"
   ],
   "C# IR IRImports": [
-    "csharp/ql/src/experimental/ir/implementation/raw/internal/IRImports.qll",
-    "csharp/ql/src/experimental/ir/implementation/unaliased_ssa/internal/IRImports.qll"
+    "csharp/ql/src/semmle/code/csharp/ir/implementation/raw/internal/IRImports.qll",
+    "csharp/ql/src/semmle/code/csharp/ir/implementation/unaliased_ssa/internal/IRImports.qll"
   ],
   "C# IR IRBlockImports": [
-    "csharp/ql/src/experimental/ir/implementation/raw/internal/IRBlockImports.qll",
-    "csharp/ql/src/experimental/ir/implementation/unaliased_ssa/internal/IRBlockImports.qll"
-  ],
-  "C# IR IRFunctionImports": [
-    "csharp/ql/src/experimental/ir/implementation/raw/internal/IRFunctionImports.qll",
-    "csharp/ql/src/experimental/ir/implementation/unaliased_ssa/internal/IRFunctionImports.qll"
+    "csharp/ql/src/semmle/code/csharp/ir/implementation/raw/internal/IRBlockImports.qll",
+    "csharp/ql/src/semmle/code/csharp/ir/implementation/unaliased_ssa/internal/IRBlockImports.qll"
   ],
   "C# IR IRVariableImports": [
-    "csharp/ql/src/experimental/ir/implementation/raw/internal/IRVariableImports.qll",
-    "csharp/ql/src/experimental/ir/implementation/unaliased_ssa/internal/IRVariableImports.qll"
+    "csharp/ql/src/semmle/code/csharp/ir/implementation/raw/internal/IRVariableImports.qll",
+    "csharp/ql/src/semmle/code/csharp/ir/implementation/unaliased_ssa/internal/IRVariableImports.qll"
   ],
   "C# IR OperandImports": [
-    "csharp/ql/src/experimental/ir/implementation/raw/internal/OperandImports.qll",
-    "csharp/ql/src/experimental/ir/implementation/unaliased_ssa/internal/OperandImports.qll"
+    "csharp/ql/src/semmle/code/csharp/ir/implementation/raw/internal/OperandImports.qll",
+    "csharp/ql/src/semmle/code/csharp/ir/implementation/unaliased_ssa/internal/OperandImports.qll"
   ],
   "C# IR PrintIRImports": [
-    "csharp/ql/src/experimental/ir/implementation/raw/internal/PrintIRImports.qll",
-    "csharp/ql/src/experimental/ir/implementation/unaliased_ssa/internal/PrintIRImports.qll"
+    "csharp/ql/src/semmle/code/csharp/ir/implementation/raw/internal/PrintIRImports.qll",
+    "csharp/ql/src/semmle/code/csharp/ir/implementation/unaliased_ssa/internal/PrintIRImports.qll"
   ],
   "C# IR ValueNumberingImports": [
-    "csharp/ql/src/experimental/ir/implementation/raw/gvn/internal/ValueNumberingImports.qll",
-    "csharp/ql/src/experimental/ir/implementation/unaliased_ssa/gvn/internal/ValueNumberingImports.qll"
-  ],
-  "C# ControlFlowReachability": [
-    "csharp/ql/src/semmle/code/csharp/dataflow/internal/ControlFlowReachability.qll",
-    "csharp/ql/src/semmle/code/csharp/dataflow/internal/rangeanalysis/ControlFlowReachability.qll"
-  ],
-  "Inline Test Expectations": [
-    "cpp/ql/test/TestUtilities/InlineExpectationsTest.qll",
-    "python/ql/test/TestUtilities/InlineExpectationsTest.qll"
+    "csharp/ql/src/semmle/code/csharp/ir/implementation/raw/gvn/internal/ValueNumberingImports.qll",
+    "csharp/ql/src/semmle/code/csharp/ir/implementation/unaliased_ssa/gvn/internal/ValueNumberingImports.qll"
   ],
   "XML": [
     "cpp/ql/src/semmle/code/cpp/XML.qll",
@@ -364,50 +309,5 @@
     "java/ql/src/semmle/code/xml/XML.qll",
     "javascript/ql/src/semmle/javascript/XML.qll",
     "python/ql/src/semmle/python/xml/XML.qll"
-  ],
-  "DuplicationProblems.qhelp": [
-    "cpp/ql/src/Metrics/Files/DuplicationProblems.qhelp",
-    "csharp/ql/src/Metrics/Files/DuplicationProblems.qhelp",
-    "javascript/ql/src/Metrics/DuplicationProblems.qhelp",
-    "python/ql/src/Metrics/DuplicationProblems.qhelp"
-  ],
-  "CommentedOutCodeQuery.qhelp": [
-    "cpp/ql/src/Documentation/CommentedOutCodeQuery.qhelp",
-    "python/ql/src/Lexical/CommentedOutCodeQuery.qhelp",
-    "csharp/ql/src/Bad Practices/Comments/CommentedOutCodeQuery.qhelp",
-    "java/ql/src/Violations of Best Practice/Comments/CommentedOutCodeQuery.qhelp",
-    "javascript/ql/src/Comments/CommentedOutCodeQuery.qhelp"
-  ],
-  "FLinesOfCodeReferences.qhelp": [
-    "java/ql/src/Metrics/Files/FLinesOfCodeReferences.qhelp",
-    "javascript/ql/src/Metrics/FLinesOfCodeReferences.qhelp"
-  ],
-  "FCommentRatioCommon.qhelp": [
-    "java/ql/src/Metrics/Files/FCommentRatioCommon.qhelp",
-    "javascript/ql/src/Metrics/FCommentRatioCommon.qhelp"
-  ],
-  "FLinesOfCodeOverview.qhelp": [
-    "java/ql/src/Metrics/Files/FLinesOfCodeOverview.qhelp",
-    "javascript/ql/src/Metrics/FLinesOfCodeOverview.qhelp"
-  ],
-  "CommentedOutCodeMetricOverview.qhelp": [
-    "cpp/ql/src/Metrics/Files/CommentedOutCodeMetricOverview.qhelp",
-    "csharp/ql/src/Metrics/Files/CommentedOutCodeMetricOverview.qhelp",
-    "java/ql/src/Metrics/Files/CommentedOutCodeMetricOverview.qhelp",
-    "javascript/ql/src/Comments/CommentedOutCodeMetricOverview.qhelp",
-    "python/ql/src/Lexical/CommentedOutCodeMetricOverview.qhelp"
-  ],
-  "FLinesOfDuplicatedCodeCommon.qhelp": [
-    "cpp/ql/src/Metrics/Files/FLinesOfDuplicatedCodeCommon.qhelp",
-    "java/ql/src/Metrics/Files/FLinesOfDuplicatedCodeCommon.qhelp",
-    "javascript/ql/src/Metrics/FLinesOfDuplicatedCodeCommon.qhelp",
-    "python/ql/src/Metrics/FLinesOfDuplicatedCodeCommon.qhelp"
-  ],
-  "CommentedOutCodeReferences.qhelp": [
-    "cpp/ql/src/Metrics/Files/CommentedOutCodeReferences.qhelp",
-    "csharp/ql/src/Metrics/Files/CommentedOutCodeReferences.qhelp",
-    "java/ql/src/Metrics/Files/CommentedOutCodeReferences.qhelp",
-    "javascript/ql/src/Comments/CommentedOutCodeReferences.qhelp",
-    "python/ql/src/Lexical/CommentedOutCodeReferences.qhelp"
   ]
 }

config/opcode-qldoc.py

@@ -1,102 +0,0 @@
-#!/usr/bin/env python3
-
-import os
-import re
-path = os.path
-
-needs_an_re = re.compile(r'^(?!Unary)[AEIOU]')  # Name requiring "an" instead of "a".
-start_qldoc_re = re.compile(r'^\s*/\*\*')  # Start of a QLDoc comment
-end_qldoc_re = re.compile(r'\*/\s*$')  # End of a QLDoc comment
-blank_qldoc_line_re = re.compile(r'^\s*\*\s*$')  # A line in a QLDoc comment with only the '*'
-instruction_class_re = re.compile(r'^class (?P<name>[A-aa-z0-9]+)Instruction\s')  # Declaration of an `Instruction` class
-opcode_base_class_re = re.compile(r'^abstract class (?P<name>[A-aa-z0-9]+)Opcode\s')  # Declaration of an `Opcode` base class
-opcode_class_re = re.compile(r'^  class (?P<name>[A-aa-z0-9]+)\s')  # Declaration of an `Opcode` class
-
-script_dir = path.realpath(path.dirname(__file__))
-instruction_path = path.realpath(path.join(script_dir, '../cpp/ql/src/semmle/code/cpp/ir/implementation/raw/Instruction.qll'))
-opcode_path = path.realpath(path.join(script_dir, '../cpp/ql/src/semmle/code/cpp/ir/implementation/Opcode.qll'))
-
-# Scan `Instruction.qll`, keeping track of the QLDoc comment attached to each declaration of a class
-# whose name ends with `Instruction`.
-instruction_comments = {}
-in_qldoc = False
-saw_blank_line_in_qldoc = False
-qldoc_lines = []
-with open(instruction_path, 'r', encoding='utf-8') as instr:
-    for line in instr:
-        if in_qldoc:
-            if end_qldoc_re.search(line):
-                qldoc_lines.append(line)
-                in_qldoc = False
-            elif blank_qldoc_line_re.search(line):
-                # We're going to skip any lines after the first blank line, to avoid duplicating all
-                # of the verbose description.
-                saw_blank_line_in_qldoc = True
-            elif not saw_blank_line_in_qldoc:
-                qldoc_lines.append(line)
-        else:
-            if start_qldoc_re.search(line):
-                # Starting a new QLDoc comment.
-                saw_blank_line_in_qldoc = False
-                qldoc_lines.append(line)
-                if not end_qldoc_re.search(line):
-                    in_qldoc = True
-            else:
-                instruction_match = instruction_class_re.search(line)
-                if instruction_match:
-                    # Found the declaration of an `Instruction` class. Record the QLDoc comments.
-                    instruction_comments[instruction_match.group('name')] = qldoc_lines
-                qldoc_lines = []
-
-# Scan `Opcode.qll`. Whenever we see the declaration of an `Opcode` class for which we have a
-# corresponding `Instruction` class, we'll attach a copy of the `Instruction`'s QLDoc comment.
-in_qldoc = False
-qldoc_lines = []
-output_lines = []
-with open(opcode_path, 'r', encoding='utf-8') as opcode:
-    for line in opcode:
-        if in_qldoc:
-            qldoc_lines.append(line)
-            if end_qldoc_re.search(line):
-                in_qldoc = False
-        else:
-            if start_qldoc_re.search(line):
-                qldoc_lines.append(line)
-                if not end_qldoc_re.search(line):
-                    in_qldoc = True
-            else:
-                name_without_suffix = None
-                name = None
-                indent = ''
-                opcode_base_match = opcode_base_class_re.search(line)
-                if opcode_base_match:
-                    name_without_suffix = opcode_base_match.group('name')
-                    name = name_without_suffix + 'Opcode'
-                else:
-                    opcode_match = opcode_class_re.search(line)
-                    if opcode_match:
-                        name_without_suffix = opcode_match.group('name')
-                        name = name_without_suffix
-                        # Indent by two additional spaces, since opcodes are declared in the
-                        # `Opcode` module.
-                        indent = '  '
-                
-                if name_without_suffix:
-                    # Found an `Opcode` that matches a known `Instruction`. Replace the QLDoc with
-                    # a copy of the one from the `Instruction`.
-                    if instruction_comments.get(name_without_suffix):
-                        article = 'an' if needs_an_re.search(name_without_suffix) else 'a'
-                        qldoc_lines = [
-                            indent + '/**\n',
-                            indent + ' * The `Opcode` for ' + article + ' `' + name_without_suffix + 'Instruction`.\n',
-                            indent + ' *\n',
-                            indent + ' * See the `' + name_without_suffix + 'Instruction` documentation for more details.\n',
-                            indent + ' */\n'
-                        ]
-                output_lines.extend(qldoc_lines)
-                qldoc_lines = []
-                output_lines.append(line)
-
-# Write out the updated `Opcode.qll`
-with open(opcode_path, 'w', encoding='utf-8') as opcode:
-    opcode.writelines(output_lines)

config/sync-files.py

@@ -59,32 +59,21 @@ def file_checksum(filename):
         return hashlib.sha1(file_handle.read()).hexdigest()
 
 def check_group(group_name, files, master_file_picker, emit_error):
-    extant_files = [f for f in files if path.isfile(f)]
-    if len(extant_files) == 0:
-        emit_error(__file__, 0, "No files found from group '" + group_name + "'.")
-        emit_error(__file__, 0,
-                "Create one of the following files, and then run this script with "
-                "the --latest switch to sync it to the other file locations.")
-        for filename in files:
-            emit_error(__file__, 0, "    " + filename)
+    checksums = {file_checksum(f) for f in files}
+
+    if len(checksums) == 1:
         return
 
-    checksums = {file_checksum(f) for f in extant_files}
-
-    if len(checksums) == 1 and len(extant_files) == len(files):
-        # All files are present and identical.
-        return
-
-    master_file = master_file_picker(extant_files)
+    master_file = master_file_picker(files)
     if master_file is None:
         emit_error(__file__, 0,
                 "Files from group '"+ group_name +"' not in sync.")
         emit_error(__file__, 0,
                 "Run this script with a file-name argument among the "
                 "following to overwrite the remaining files with the contents "
-                "of that file, or run with the --latest switch to update each "
+                "of that file or run with the --latest switch to update each "
                 "group of files from the most recently modified file in the group.")
-        for filename in extant_files:
+        for filename in files:
             emit_error(__file__, 0, "    " + filename)
     else:
         print("  Syncing others from", master_file)
@@ -92,8 +81,7 @@ def check_group(group_name, files, master_file_picker, emit_error):
             if filename == master_file:
                 continue
             print("    " + filename)
-            if path.isfile(filename):
-                os.replace(filename, filename + '~')
+            os.replace(filename, filename + '~')
             shutil.copy(master_file, filename)
         print("  Backups written with '~' appended to file names")
 
@@ -119,7 +107,7 @@ def choose_latest_file(files):
 
 local_error_count = 0
 def emit_local_error(path, line, error):
-    print('ERROR: ' + path + ':' + str(line) + " - " + error)
+    print('ERROR: ' + path + ':' + line + " - " + error)
     global local_error_count
     local_error_count += 1
 

cpp/autobuilder/.gitignore

@@ -1,13 +0,0 @@
-obj/
-TestResults/
-*.manifest
-*.pdb
-*.suo
-*.mdb
-*.vsmdi
-csharp.log
-**/bin/Debug
-**/bin/Release
-*.tlog
-.vs
-*.user

cpp/autobuilder/Semmle.Autobuild.Cpp.Tests/BuildScripts.cs

@@ -1,296 +0,0 @@
-using Xunit;
-using Semmle.Autobuild.Shared;
-using System.Collections.Generic;
-using System;
-using System.Linq;
-using Microsoft.Build.Construction;
-using System.Xml;
-
-namespace Semmle.Autobuild.Cpp.Tests
-{
-    /// <summary>
-    /// Test class to script Autobuilder scenarios.
-    /// For most methods, it uses two fields:
-    /// - an IList to capture the the arguments passed to it
-    /// - an IDictionary of possible return values.
-    /// </summary>
-    class TestActions : IBuildActions
-    {
-        /// <summary>
-        /// List of strings passed to FileDelete.
-        /// </summary>
-        public IList<string> FileDeleteIn = new List<string>();
-
-        void IBuildActions.FileDelete(string file)
-        {
-            FileDeleteIn.Add(file);
-        }
-
-        public IList<string> FileExistsIn = new List<string>();
-        public IDictionary<string, bool> FileExists = new Dictionary<string, bool>();
-
-        bool IBuildActions.FileExists(string file)
-        {
-            FileExistsIn.Add(file);
-            if (FileExists.TryGetValue(file, out var ret))
-                return ret;
-            if (FileExists.TryGetValue(System.IO.Path.GetFileName(file), out ret))
-                return ret;
-            throw new ArgumentException("Missing FileExists " + file);
-        }
-
-        public IList<string> RunProcessIn = new List<string>();
-        public IDictionary<string, int> RunProcess = new Dictionary<string, int>();
-        public IDictionary<string, string> RunProcessOut = new Dictionary<string, string>();
-        public IDictionary<string, string> RunProcessWorkingDirectory = new Dictionary<string, string>();
-
-        int IBuildActions.RunProcess(string cmd, string args, string? workingDirectory, IDictionary<string, string>? env, out IList<string> stdOut)
-        {
-            var pattern = cmd + " " + args;
-            RunProcessIn.Add(pattern);
-            if (RunProcessOut.TryGetValue(pattern, out var str))
-                stdOut = str.Split("\n");
-            else
-                throw new ArgumentException("Missing RunProcessOut " + pattern);
-            RunProcessWorkingDirectory.TryGetValue(pattern, out var wd);
-            if (wd != workingDirectory)
-                throw new ArgumentException("Missing RunProcessWorkingDirectory " + pattern);
-            if (RunProcess.TryGetValue(pattern, out var ret))
-                return ret;
-            throw new ArgumentException("Missing RunProcess " + pattern);
-        }
-
-        int IBuildActions.RunProcess(string cmd, string args, string? workingDirectory, IDictionary<string, string>? env)
-        {
-            var pattern = cmd + " " + args;
-            RunProcessIn.Add(pattern);
-            RunProcessWorkingDirectory.TryGetValue(pattern, out var wd);
-            if (wd != workingDirectory)
-                throw new ArgumentException("Missing RunProcessWorkingDirectory " + pattern);
-            if (RunProcess.TryGetValue(pattern, out var ret))
-                return ret;
-            throw new ArgumentException("Missing RunProcess " + pattern);
-        }
-
-        public IList<string> DirectoryDeleteIn = new List<string>();
-
-        void IBuildActions.DirectoryDelete(string dir, bool recursive)
-        {
-            DirectoryDeleteIn.Add(dir);
-        }
-
-        public IDictionary<string, bool> DirectoryExists = new Dictionary<string, bool>();
-        public IList<string> DirectoryExistsIn = new List<string>();
-
-        bool IBuildActions.DirectoryExists(string dir)
-        {
-            DirectoryExistsIn.Add(dir);
-            if (DirectoryExists.TryGetValue(dir, out var ret))
-                return ret;
-            throw new ArgumentException("Missing DirectoryExists " + dir);
-        }
-
-        public IDictionary<string, string?> GetEnvironmentVariable = new Dictionary<string, string?>();
-
-        string? IBuildActions.GetEnvironmentVariable(string name)
-        {
-            if (GetEnvironmentVariable.TryGetValue(name, out var ret))
-                return ret;
-            throw new ArgumentException("Missing GetEnvironmentVariable " + name);
-        }
-
-        public string GetCurrentDirectory = "";
-
-        string IBuildActions.GetCurrentDirectory()
-        {
-            return GetCurrentDirectory;
-        }
-
-        public IDictionary<string, string> EnumerateFiles = new Dictionary<string, string>();
-
-        IEnumerable<string> IBuildActions.EnumerateFiles(string dir)
-        {
-            if (EnumerateFiles.TryGetValue(dir, out var str))
-                return str.Split("\n");
-            throw new ArgumentException("Missing EnumerateFiles " + dir);
-        }
-
-        public IDictionary<string, string> EnumerateDirectories = new Dictionary<string, string>();
-
-        IEnumerable<string> IBuildActions.EnumerateDirectories(string dir)
-        {
-            if (EnumerateDirectories.TryGetValue(dir, out var str))
-                return string.IsNullOrEmpty(str) ? Enumerable.Empty<string>() : str.Split("\n");
-            throw new ArgumentException("Missing EnumerateDirectories " + dir);
-        }
-
-        public bool IsWindows;
-
-        bool IBuildActions.IsWindows() => IsWindows;
-
-        string IBuildActions.PathCombine(params string[] parts)
-        {
-            return string.Join(IsWindows ? '\\' : '/', parts.Where(p => !string.IsNullOrWhiteSpace(p)));
-        }
-
-        string IBuildActions.GetFullPath(string path) => path;
-
-        void IBuildActions.WriteAllText(string filename, string contents)
-        {
-        }
-
-        public IDictionary<string, XmlDocument> LoadXml = new Dictionary<string, XmlDocument>();
-        XmlDocument IBuildActions.LoadXml(string filename)
-        {
-            if (LoadXml.TryGetValue(filename, out var xml))
-                return xml;
-            throw new ArgumentException("Missing LoadXml " + filename);
-        }
-
-        public string EnvironmentExpandEnvironmentVariables(string s)
-        {
-            foreach (var kvp in GetEnvironmentVariable)
-                s = s.Replace($"%{kvp.Key}%", kvp.Value);
-            return s;
-        }
-    }
-
-    /// <summary>
-    /// A fake solution to build.
-    /// </summary>
-    class TestSolution : ISolution
-    {
-        public IEnumerable<SolutionConfigurationInSolution> Configurations => throw new NotImplementedException();
-
-        public string DefaultConfigurationName => "Release";
-
-        public string DefaultPlatformName => "x86";
-
-        public string FullPath { get; set; }
-
-        public Version ToolsVersion => new Version("14.0");
-
-        public IEnumerable<IProjectOrSolution> IncludedProjects => throw new NotImplementedException();
-
-        public TestSolution(string path)
-        {
-            FullPath = path;
-        }
-    }
-
-    public class BuildScriptTests
-    {
-        TestActions Actions = new TestActions();
-
-        // Records the arguments passed to StartCallback.
-        IList<string> StartCallbackIn = new List<string>();
-
-        void StartCallback(string s, bool silent)
-        {
-            StartCallbackIn.Add(s);
-        }
-
-        // Records the arguments passed to EndCallback
-        IList<string> EndCallbackIn = new List<string>();
-        IList<int> EndCallbackReturn = new List<int>();
-
-        void EndCallback(int ret, string s, bool silent)
-        {
-            EndCallbackReturn.Add(ret);
-            EndCallbackIn.Add(s);
-        }
-
-        CppAutobuilder CreateAutoBuilder(bool isWindows,
-            string? buildless = null, string? solution = null, string? buildCommand = null, string? ignoreErrors = null,
-            string? msBuildArguments = null, string? msBuildPlatform = null, string? msBuildConfiguration = null, string? msBuildTarget = null,
-            string? dotnetArguments = null, string? dotnetVersion = null, string? vsToolsVersion = null,
-            string? nugetRestore = null, string? allSolutions = null,
-            string cwd = @"C:\Project")
-        {
-            string codeqlUpperLanguage = Language.Cpp.UpperCaseName;
-            Actions.GetEnvironmentVariable[$"CODEQL_AUTOBUILDER_{codeqlUpperLanguage}_NO_INDEXING"] = "false";
-            Actions.GetEnvironmentVariable[$"CODEQL_EXTRACTOR_{codeqlUpperLanguage}_TRAP_DIR"] = "";
-            Actions.GetEnvironmentVariable[$"CODEQL_EXTRACTOR_{codeqlUpperLanguage}_SOURCE_ARCHIVE_DIR"] = "";
-            Actions.GetEnvironmentVariable[$"CODEQL_EXTRACTOR_{codeqlUpperLanguage}_ROOT"] = $@"C:\codeql\{codeqlUpperLanguage.ToLowerInvariant()}";
-            Actions.GetEnvironmentVariable["CODEQL_JAVA_HOME"] = @"C:\codeql\tools\java";
-            Actions.GetEnvironmentVariable["SEMMLE_DIST"] = @"C:\odasa";
-            Actions.GetEnvironmentVariable["SEMMLE_JAVA_HOME"] = @"C:\odasa\tools\java";
-            Actions.GetEnvironmentVariable["SEMMLE_PLATFORM_TOOLS"] = @"C:\odasa\tools";
-            Actions.GetEnvironmentVariable["LGTM_INDEX_VSTOOLS_VERSION"] = vsToolsVersion;
-            Actions.GetEnvironmentVariable["LGTM_INDEX_MSBUILD_ARGUMENTS"] = msBuildArguments;
-            Actions.GetEnvironmentVariable["LGTM_INDEX_MSBUILD_PLATFORM"] = msBuildPlatform;
-            Actions.GetEnvironmentVariable["LGTM_INDEX_MSBUILD_CONFIGURATION"] = msBuildConfiguration;
-            Actions.GetEnvironmentVariable["LGTM_INDEX_MSBUILD_TARGET"] = msBuildTarget;
-            Actions.GetEnvironmentVariable["LGTM_INDEX_DOTNET_ARGUMENTS"] = dotnetArguments;
-            Actions.GetEnvironmentVariable["LGTM_INDEX_DOTNET_VERSION"] = dotnetVersion;
-            Actions.GetEnvironmentVariable["LGTM_INDEX_BUILD_COMMAND"] = buildCommand;
-            Actions.GetEnvironmentVariable["LGTM_INDEX_SOLUTION"] = solution;
-            Actions.GetEnvironmentVariable["LGTM_INDEX_IGNORE_ERRORS"] = ignoreErrors;
-            Actions.GetEnvironmentVariable["LGTM_INDEX_BUILDLESS"] = buildless;
-            Actions.GetEnvironmentVariable["LGTM_INDEX_ALL_SOLUTIONS"] = allSolutions;
-            Actions.GetEnvironmentVariable["LGTM_INDEX_NUGET_RESTORE"] = nugetRestore;
-            Actions.GetEnvironmentVariable["ProgramFiles(x86)"] = isWindows ? @"C:\Program Files (x86)" : null;
-            Actions.GetCurrentDirectory = cwd;
-            Actions.IsWindows = isWindows;
-
-            var options = new AutobuildOptions(Actions, Language.Cpp);
-            return new CppAutobuilder(Actions, options);
-        }
-
-        void TestAutobuilderScript(Autobuilder autobuilder, int expectedOutput, int commandsRun)
-        {
-            Assert.Equal(expectedOutput, autobuilder.GetBuildScript().Run(Actions, StartCallback, EndCallback));
-
-            // Check expected commands actually ran
-            Assert.Equal(commandsRun, StartCallbackIn.Count);
-            Assert.Equal(commandsRun, EndCallbackIn.Count);
-            Assert.Equal(commandsRun, EndCallbackReturn.Count);
-
-            var action = Actions.RunProcess.GetEnumerator();
-            for (int cmd = 0; cmd < commandsRun; ++cmd)
-            {
-                Assert.True(action.MoveNext());
-
-                Assert.Equal(action.Current.Key, StartCallbackIn[cmd]);
-                Assert.Equal(action.Current.Value, EndCallbackReturn[cmd]);
-            }
-        }
-
-
-        [Fact]
-        public void TestDefaultCppAutobuilder()
-        {
-            Actions.EnumerateFiles[@"C:\Project"] = "";
-            Actions.EnumerateDirectories[@"C:\Project"] = "";
-
-            var autobuilder = CreateAutoBuilder(true);
-            var script = autobuilder.GetBuildScript();
-
-            // Fails due to no solutions present.
-            Assert.NotEqual(0, script.Run(Actions, StartCallback, EndCallback));
-        }
-
-        [Fact]
-        public void TestCppAutobuilderSuccess()
-        {
-            Actions.RunProcess[@"cmd.exe /C C:\odasa\tools\csharp\nuget\nuget.exe restore C:\Project\test.sln"] = 1;
-            Actions.RunProcess[@"cmd.exe /C CALL ^""C:\Program Files ^(x86^)\Microsoft Visual Studio 14.0\VC\vcvarsall.bat^"" && set Platform=&& type NUL && C:\odasa\tools\odasa index --auto msbuild C:\Project\test.sln /p:UseSharedCompilation=false /t:rebuild /p:Platform=""x86"" /p:Configuration=""Release"" /p:MvcBuildViews=true"] = 0;
-            Actions.RunProcessOut[@"C:\Program Files (x86)\Microsoft Visual Studio\Installer\vswhere.exe -prerelease -legacy -property installationPath"] = "";
-            Actions.RunProcess[@"C:\Program Files (x86)\Microsoft Visual Studio\Installer\vswhere.exe -prerelease -legacy -property installationPath"] = 1;
-            Actions.RunProcess[@"C:\Program Files (x86)\Microsoft Visual Studio\Installer\vswhere.exe -prerelease -legacy -property installationVersion"] = 0;
-            Actions.RunProcessOut[@"C:\Program Files (x86)\Microsoft Visual Studio\Installer\vswhere.exe -prerelease -legacy -property installationVersion"] = "";
-            Actions.FileExists[@"C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\vcvarsall.bat"] = true;
-            Actions.FileExists[@"C:\Program Files (x86)\Microsoft Visual Studio 12.0\VC\vcvarsall.bat"] = true;
-            Actions.FileExists[@"C:\Program Files (x86)\Microsoft Visual Studio 11.0\VC\vcvarsall.bat"] = true;
-            Actions.FileExists[@"C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\vcvarsall.bat"] = true;
-            Actions.FileExists[@"C:\Program Files (x86)\Microsoft Visual Studio\Installer\vswhere.exe"] = true;
-            Actions.EnumerateFiles[@"C:\Project"] = "foo.cs\ntest.slx";
-            Actions.EnumerateDirectories[@"C:\Project"] = "";
-
-            var autobuilder = CreateAutoBuilder(true);
-            var solution = new TestSolution(@"C:\Project\test.sln");
-            autobuilder.ProjectsOrSolutionsToBuild.Add(solution);
-            TestAutobuilderScript(autobuilder, 0, 2);
-        }
-    }
-}

cpp/autobuilder/Semmle.Autobuild.Cpp.Tests/Semmle.Autobuild.Cpp.Tests.csproj

@@ -1,25 +0,0 @@
-<Project Sdk="Microsoft.NET.Sdk">
-
-  <PropertyGroup>
-    <OutputType>Exe</OutputType>
-    <TargetFramework>netcoreapp3.1</TargetFramework>
-    <GenerateAssemblyInfo>false</GenerateAssemblyInfo>
-    <RuntimeIdentifiers>win-x64;linux-x64;osx-x64</RuntimeIdentifiers>
-    <Nullable>enable</Nullable>
-  </PropertyGroup>
-
-  <ItemGroup>
-    <PackageReference Include="System.IO.FileSystem" Version="4.3.0" />
-    <PackageReference Include="System.IO.FileSystem.Primitives" Version="4.3.0" />
-    <PackageReference Include="xunit" Version="2.4.1" />
-    <PackageReference Include="xunit.runner.visualstudio" Version="2.4.1">
-      <PrivateAssets>all</PrivateAssets>
-      <IncludeAssets>runtime; build; native; contentfiles; analyzers</IncludeAssets>
-    </PackageReference>
-  </ItemGroup>
-
-  <ItemGroup>
-    <ProjectReference Include="..\Semmle.Autobuild.Cpp\Semmle.Autobuild.Cpp.csproj" />
-    <ProjectReference Include="..\..\..\csharp\autobuilder\Semmle.Autobuild.Shared\Semmle.Autobuild.Shared.csproj" />
-  </ItemGroup>
-</Project>

cpp/autobuilder/Semmle.Autobuild.Cpp/CppAutobuilder.cs

@@ -1,23 +0,0 @@
-using Semmle.Autobuild.Shared;
-
-namespace Semmle.Autobuild.Cpp
-{
-    public class CppAutobuilder : Autobuilder
-    {
-        public CppAutobuilder(IBuildActions actions, AutobuildOptions options) : base(actions, options) { }
-
-        public override BuildScript GetBuildScript()
-        {
-            if (Options.BuildCommand != null)
-                return new BuildCommandRule((_, f) => f(null)).Analyse(this, false);
-
-            return
-                // First try MSBuild
-                new MsBuildRule().Analyse(this, true) |
-                // Then look for a script that might be a build script
-                (() => new BuildCommandAutoRule((_, f) => f(null)).Analyse(this, true)) |
-                // All attempts failed: print message
-                AutobuildFailure();
-        }
-    }
-}

cpp/autobuilder/Semmle.Autobuild.Cpp/Program.cs

@@ -1,33 +0,0 @@
-using System;
-using Semmle.Autobuild.Shared;
-
-namespace Semmle.Autobuild.Cpp
-{
-    class Program
-    {
-        static int Main()
-        {
-
-            try
-            {
-                var actions = SystemBuildActions.Instance;
-                var options = new AutobuildOptions(actions, Language.Cpp);
-                try
-                {
-                    Console.WriteLine("CodeQL C++ autobuilder");
-                    var builder = new CppAutobuilder(actions, options);
-                    return builder.AttemptBuild();
-                }
-                catch(InvalidEnvironmentException ex)
-                {
-                    Console.WriteLine("The environment is invalid: {0}", ex.Message);
-                }
-            }
-            catch (ArgumentOutOfRangeException ex)
-            {
-                Console.WriteLine("The value \"{0}\" for parameter \"{1}\" is invalid", ex.ActualValue, ex.ParamName);
-            }
-            return 1;
-        }
-    }
-}

cpp/autobuilder/Semmle.Autobuild.Cpp/Properties/AssemblyInfo.cs

@@ -1,32 +0,0 @@
-using System.Reflection;
-using System.Runtime.InteropServices;
-
-// General Information about an assembly is controlled through the following
-// set of attributes. Change these attribute values to modify the information
-// associated with an assembly.
-[assembly: AssemblyTitle("Semmle.Autobuild.Cpp")]
-[assembly: AssemblyDescription("")]
-[assembly: AssemblyConfiguration("")]
-[assembly: AssemblyCompany("GitHub")]
-[assembly: AssemblyProduct("CodeQL autobuilder for C++")]
-[assembly: AssemblyCopyright("Copyright © GitHub 2020")]
-[assembly: AssemblyTrademark("")]
-[assembly: AssemblyCulture("")]
-
-// Setting ComVisible to false makes the types in this assembly not visible
-// to COM components.  If you need to access a type in this assembly from
-// COM, set the ComVisible attribute to true on that type.
-[assembly: ComVisible(false)]
-
-// Version information for an assembly consists of the following four values:
-//
-//      Major Version
-//      Minor Version
-//      Build Number
-//      Revision
-//
-// You can specify all the values or you can default the Build and Revision Numbers
-// by using the '*' as shown below:
-// [assembly: AssemblyVersion("1.0.*")]
-[assembly: AssemblyVersion("1.0.0.0")]
-[assembly: AssemblyFileVersion("1.0.0.0")]

cpp/autobuilder/Semmle.Autobuild.Cpp/Semmle.Autobuild.Cpp.csproj

@@ -1,28 +0,0 @@
-<Project Sdk="Microsoft.NET.Sdk">
-
-  <PropertyGroup>
-    <TargetFramework>netcoreapp3.1</TargetFramework>
-    <AssemblyName>Semmle.Autobuild.Cpp</AssemblyName>
-    <RootNamespace>Semmle.Autobuild.Cpp</RootNamespace>
-    <ApplicationIcon />
-    <OutputType>Exe</OutputType>
-    <StartupObject />
-    <GenerateAssemblyInfo>false</GenerateAssemblyInfo>
-    <RuntimeIdentifiers>win-x64;linux-x64;osx-x64</RuntimeIdentifiers>
-    <Nullable>enable</Nullable>
-  </PropertyGroup>
-
-  <ItemGroup>
-    <Folder Include="Properties\" />
-  </ItemGroup>
-
-  <ItemGroup>
-    <PackageReference Include="Microsoft.Build" Version="16.0.461" />
-  </ItemGroup>
-
-  <ItemGroup>
-    <ProjectReference Include="..\..\..\csharp\extractor\Semmle.Util\Semmle.Util.csproj" />
-    <ProjectReference Include="..\..\..\csharp\autobuilder\Semmle.Autobuild.Shared\Semmle.Autobuild.Shared.csproj" />
-  </ItemGroup>
-
-</Project>

cpp/change-notes/2020-09-29-range-analysis-rollup.md

@@ -1,14 +0,0 @@
-lgtm,codescanning
-* The `SimpleRangeAnalysis` library has gained support for several language
-  constructs it did not support previously. These improvements primarily affect
-  the queries `cpp/constant-comparison`, `cpp/comparison-with-wider-type`, and
-  `cpp/integer-multiplication-cast-to-long`. The newly supported language
-  features are:
-    * Multiplication of unsigned numbers.
-    * Multiplication by a constant.
-    * Reference-typed function parameters.
-    * Comparing a variable not equal to an endpoint of its range, thus narrowing the range by one.
-    * Using `if (x)` or `if (!x)` or similar to test for equality to zero.
-* The `SimpleRangeAnalysis` library can now be extended with custom rules. See
-  examples in
-  `cpp/ql/src/experimental/semmle/code/cpp/rangeanalysis/extensions/`.

cpp/change-notes/2020-10-21-erroneous-types.md

@@ -1,2 +0,0 @@
-lgtm,codescanning
-* The `cpp/wrong-type-format-argument` and `cpp/non-portable-printf` queries have been hardened so that they do not produce nonsensical results on databases that contain errors (specifically the `ErroneousType`).

cpp/change-notes/2020-10-21-size-check-queries.md

@@ -1,2 +0,0 @@
-lgtm,codescanning
-* The 'Not enough memory allocated for pointer type' (cpp/allocation-too-small) and 'Not enough memory allocated for array of pointer type' (cpp/suspicious-allocation-size) queries have been improved. Previously some allocations would be reported by both queries, this no longer occurs. In addition more allocation functions are now understood by both queries.

cpp/ql/examples/qlpack.yml

@@ -1,3 +0,0 @@
-name: codeql-cpp-examples
-version: 0.0.0
-libraryPathDependencies: codeql-cpp

cpp/ql/examples/snippets/emptyblock.ql

@@ -9,6 +9,6 @@
 
 import cpp
 
-from BlockStmt blk
+from Block blk
 where blk.getNumStmt() = 0
 select blk

cpp/ql/examples/snippets/emptythen.ql

@@ -13,5 +13,5 @@
 import cpp
 
 from IfStmt i
-where i.getThen().(BlockStmt).getNumStmt() = 0
+where i.getThen().(Block).getNumStmt() = 0
 select i

cpp/ql/examples/snippets/singletonblock.ql

@@ -8,6 +8,6 @@
 
 import cpp
 
-from BlockStmt b
+from Block b
 where b.getNumStmt() = 1
 select b

cpp/ql/src/Best Practices/BlockWithTooManyStatements.ql

@@ -14,7 +14,7 @@ import cpp
 
 class ComplexStmt extends Stmt {
   ComplexStmt() {
-    exists(BlockStmt body |
+    exists(Block body |
       body = this.(Loop).getStmt() or
       body = this.(SwitchStmt).getStmt()
     |
@@ -24,7 +24,7 @@ class ComplexStmt extends Stmt {
   }
 }
 
-from BlockStmt b, int n, ComplexStmt complexStmt
+from Block b, int n, ComplexStmt complexStmt
 where
   n = strictcount(ComplexStmt s | s = b.getAStmt()) and
   n > 3 and

cpp/ql/src/Best Practices/Exceptions/LeakyCatch.qhelp

@@ -39,7 +39,7 @@ void good() {
 </example>
 <references>
 
-  <li>MSDN Library for MFC: <a href="https://docs.microsoft.com/en-us/cpp/mfc/exceptions-catching-and-deleting-exceptions">Exceptions: Catching and Deleting Exceptions</a>.</li>
+  <li>MSDN Library for MFC: <a href="http://msdn.microsoft.com/en-us/library/0e5twxsh(v=vs.110).aspx">Exceptions: Catching and Deleting Exceptions</a>.</li>
 
 
 </references>

cpp/ql/src/Best Practices/Hiding/DeclarationHidesParameter.ql

@@ -11,17 +11,6 @@
 
 import cpp
 
-/**
- * Gets the template that a function `f` is constructed from, or just `f` if it
- * is not from a template instantiation.
- */
-Function getConstructedFrom(Function f) {
-  f.isConstructedFrom(result)
-  or
-  not f.isConstructedFrom(_) and
-  result = f
-}
-
 /**
  * Gets the parameter of `f` with name `name`, which has to come from the
  * _definition_ of `f` and not a prototype declaration.
@@ -29,17 +18,13 @@ Function getConstructedFrom(Function f) {
  * This should not happen in a single application but since we
  * have a system wide view it is likely to happen for instance for
  * the main function.
- *
- * Note: we use `getConstructedFrom` to ensure that we look at template
- * functions rather than their instantiations. We get better results this way
- * as the instantiation is artificial and may have inherited parameter names
- * from the declaration rather than the definition.
  */
 ParameterDeclarationEntry functionParameterNames(Function f, string name) {
   exists(FunctionDeclarationEntry fe |
     result.getFunctionDeclarationEntry() = fe and
-    getConstructedFrom(f).getDefinition() = fe and
+    fe.getFunction() = f and
     fe.getLocation() = f.getDefinitionLocation() and
+    result.getFile() = fe.getFile() and // Work around CPP-331
     strictcount(f.getDefinitionLocation()) = 1 and
     result.getName() = name
   )

cpp/ql/src/Best Practices/Hiding/DeclarationHidesVariable.ql

@@ -17,7 +17,7 @@ where
   shadowing(lv1, lv2) and
   not lv1.isCompilerGenerated() and
   not lv2.isCompilerGenerated() and
-  not lv1.getParentScope().(BlockStmt).isInMacroExpansion() and
-  not lv2.getParentScope().(BlockStmt).isInMacroExpansion()
+  not lv1.getParentScope().(Block).isInMacroExpansion() and
+  not lv2.getParentScope().(Block).isInMacroExpansion()
 select lv1, "Variable " + lv1.getName() + " hides another variable of the same name (on $@).", lv2,
   "line " + lv2.getLocation().getStartLine().toString()

cpp/ql/src/Best Practices/Likely Errors/EmptyBlock.ql

@@ -14,7 +14,7 @@
 
 import cpp
 
-predicate emptyBlock(ControlStructure s, BlockStmt b) {
+predicate emptyBlock(ControlStructure s, Block b) {
   b = s.getAChild() and
   not exists(b.getAChild()) and
   not b.isInMacroExpansion() and
@@ -23,7 +23,7 @@ predicate emptyBlock(ControlStructure s, BlockStmt b) {
 
 class AffectedFile extends File {
   AffectedFile() {
-    exists(BlockStmt b |
+    exists(Block b |
       emptyBlock(_, b) and
       this = b.getFile()
     )
@@ -37,7 +37,7 @@ class AffectedFile extends File {
 class BlockOrNonChild extends Element {
   BlockOrNonChild() {
     (
-      this instanceof BlockStmt
+      this instanceof Block
       or
       this instanceof Comment
       or
@@ -78,7 +78,7 @@ class BlockOrNonChild extends Element {
 /**
  * A block that contains a non-child element.
  */
-predicate emptyBlockContainsNonchild(BlockStmt b) {
+predicate emptyBlockContainsNonchild(Block b) {
   emptyBlock(_, b) and
   exists(BlockOrNonChild c, AffectedFile file |
     c.(BlockOrNonChild).getStartRankIn(file) = 1 + b.(BlockOrNonChild).getStartRankIn(file) and
@@ -91,7 +91,7 @@ predicate emptyBlockContainsNonchild(BlockStmt b) {
  * A block that is entirely on one line, which also contains a comment.  Chances
  * are the comment is intended to refer to the block.
  */
-predicate lineComment(BlockStmt b) {
+predicate lineComment(Block b) {
   emptyBlock(_, b) and
   exists(Location bLocation, File f, int line |
     bLocation = b.getLocation() and
@@ -106,7 +106,7 @@ predicate lineComment(BlockStmt b) {
   )
 }
 
-from ControlStructure s, BlockStmt eb
+from ControlStructure s, Block eb
 where
   emptyBlock(s, eb) and
   not emptyBlockContainsNonchild(eb) and

cpp/ql/src/Best Practices/Unused Entities/UnusedStaticVariables.qhelp

@@ -27,7 +27,7 @@ then removing it will make code more readable. If the static variable is needed
   <a href="https://www.securecoding.cert.org/confluence/display/c/MSC12-C.+Detect+and+remove+code+that+has+no+effect+or+is+never+executed">Detect and remove code that has no effect</a>
 </li>
 <li>
-  <a href="https://wiki.sei.cmu.edu/confluence/display/c/DCL19-C.+Minimize+the+scope+of+variables+and+functions">Minimize the scope of variables and functions</a>
+  <a href="https://www.securecoding.cert.org/confluence/display/cplusplus/DCL07-CPP.+Minimize+the+scope+of+variables+and+methods">Minimize the scope of variables and methods</a>
 </li>
 
 

cpp/ql/src/Best Practices/UseOfGoto.qhelp

@@ -41,7 +41,7 @@ this rule.
   E. W. Dijkstra Archive: <a href="http://www.cs.utexas.edu/users/EWD/transcriptions/EWD02xx/EWD215.html">A Case against the GO TO Statement (EWD-215)</a>.
 </li>
 <li>
-  MSDN Library: <a href="https://docs.microsoft.com/en-us/cpp/cpp/goto-statement-cpp">goto Statement (C++)</a>.
+  MSDN Library: <a href="http://msdn.microsoft.com/en-gb/library/b34dt9cd%28v=vs.80%29.aspx">The goto Statement</a>.
 </li>
 <li>
   Mats Henricson and Erik Nyquist, <i>Industrial Strength C++</i>, Rule 4.6. Prentice Hall PTR, 1997.

cpp/ql/src/Critical/DeadCodeGoto.ql

@@ -12,7 +12,7 @@
 import cpp
 import semmle.code.cpp.commons.Exclusions
 
-Stmt getNextRealStmt(BlockStmt b, int i) {
+Stmt getNextRealStmt(Block b, int i) {
   result = b.getStmt(i + 1) and
   not result instanceof EmptyStmt
   or
@@ -20,7 +20,7 @@ Stmt getNextRealStmt(BlockStmt b, int i) {
   result = getNextRealStmt(b, i + 1)
 }
 
-from JumpStmt js, BlockStmt b, int i, Stmt s
+from JumpStmt js, Block b, int i, Stmt s
 where
   b.getStmt(i) = js and
   s = getNextRealStmt(b, i) and

cpp/ql/src/Critical/MissingNullTest.qhelp

@@ -27,6 +27,6 @@ this cannot happen.
 </example>
 
 <references>
-<li>SEI CERT C Coding Standard: <a href="https://wiki.sei.cmu.edu/confluence/display/c/EXP34-C.+Do+not+dereference+null+pointers">EXP34-C. Do not dereference null pointers</a>.</li>
+<li>SEI CERT C Coding Standard: <a href="https://wiki.sei.cmu.edu/confluence/display/c/EXP34-C.+Do+not+dereference+null+pointerss">EXP34-C. Do not dereference null pointers</a>.</li>
 </references>
 </qhelp>

cpp/ql/src/Critical/OverflowDestination.ql

@@ -23,7 +23,10 @@ import semmle.code.cpp.security.TaintTracking
  * ```
  */
 predicate sourceSized(FunctionCall fc, Expr src) {
-  fc.getTarget().hasGlobalOrStdName(["strncpy", "strncat", "memcpy", "memmove"]) and
+  exists(string name |
+    (name = "strncpy" or name = "strncat" or name = "memcpy" or name = "memmove") and
+    fc.getTarget().hasGlobalOrStdName(name)
+  ) and
   exists(Expr dest, Expr size, Variable v |
     fc.getArgument(0) = dest and
     fc.getArgument(1) = src and

cpp/ql/src/Critical/SizeCheck.ql

@@ -13,9 +13,30 @@
  */
 
 import cpp
-import semmle.code.cpp.models.Models
 
-predicate baseType(AllocationExpr alloc, Type base) {
+class Allocation extends FunctionCall {
+  Allocation() {
+    exists(string name |
+      this.getTarget().hasGlobalOrStdName(name) and
+      (name = "malloc" or name = "calloc" or name = "realloc")
+    )
+  }
+
+  private string getName() { this.getTarget().hasGlobalOrStdName(result) }
+
+  int getSize() {
+    this.getName() = "malloc" and
+    this.getArgument(0).getValue().toInt() = result
+    or
+    this.getName() = "realloc" and
+    this.getArgument(1).getValue().toInt() = result
+    or
+    this.getName() = "calloc" and
+    result = this.getArgument(0).getValue().toInt() * this.getArgument(1).getValue().toInt()
+  }
+}
+
+predicate baseType(Allocation alloc, Type base) {
   exists(PointerType pointer |
     pointer.getBaseType() = base and
     (
@@ -33,12 +54,11 @@ predicate decideOnSize(Type t, int size) {
   size = min(t.getSize())
 }
 
-from AllocationExpr alloc, Type base, int basesize, int allocated
+from Allocation alloc, Type base, int basesize, int allocated
 where
   baseType(alloc, base) and
-  allocated = alloc.getSizeBytes() and
+  allocated = alloc.getSize() and
   decideOnSize(base, basesize) and
-  alloc.(FunctionCall).getTarget() instanceof AllocationFunction and // exclude `new` and similar
   basesize > allocated
 select alloc,
   "Type '" + base.getName() + "' is " + basesize.toString() + " bytes, but only " +

cpp/ql/src/Critical/SizeCheck2.ql

@@ -13,9 +13,30 @@
  */
 
 import cpp
-import semmle.code.cpp.models.Models
 
-predicate baseType(AllocationExpr alloc, Type base) {
+class Allocation extends FunctionCall {
+  Allocation() {
+    exists(string name |
+      this.getTarget().hasGlobalOrStdName(name) and
+      (name = "malloc" or name = "calloc" or name = "realloc")
+    )
+  }
+
+  private string getName() { this.getTarget().hasGlobalOrStdName(result) }
+
+  int getSize() {
+    this.getName() = "malloc" and
+    this.getArgument(0).getValue().toInt() = result
+    or
+    this.getName() = "realloc" and
+    this.getArgument(1).getValue().toInt() = result
+    or
+    this.getName() = "calloc" and
+    result = this.getArgument(0).getValue().toInt() * this.getArgument(1).getValue().toInt()
+  }
+}
+
+predicate baseType(Allocation alloc, Type base) {
   exists(PointerType pointer |
     pointer.getBaseType() = base and
     (
@@ -28,23 +49,16 @@ predicate baseType(AllocationExpr alloc, Type base) {
   )
 }
 
-predicate decideOnSize(Type t, int size) {
-  // If the codebase has more than one type with the same name, it can have more than one size.
-  size = min(t.getSize())
-}
-
-from AllocationExpr alloc, Type base, int basesize, int allocated
+from Allocation alloc, Type base, int basesize, int allocated
 where
   baseType(alloc, base) and
-  allocated = alloc.getSizeBytes() and
-  decideOnSize(base, basesize) and
-  alloc.(FunctionCall).getTarget() instanceof AllocationFunction and // exclude `new` and similar
+  allocated = alloc.getSize() and
   // If the codebase has more than one type with the same name, check if any matches
   not exists(int size | base.getSize() = size |
     size = 0 or
     (allocated / size) * size = allocated
   ) and
-  not basesize > allocated // covered by SizeCheck.ql
+  basesize = min(base.getSize())
 select alloc,
   "Allocated memory (" + allocated.toString() + " bytes) is not a multiple of the size of '" +
     base.getName() + "' (" + basesize.toString() + " bytes)."

cpp/ql/src/Critical/aliasAnalysisWarning.qhelp

@@ -1,11 +0,0 @@
-<!DOCTYPE qhelp PUBLIC
-  "-//Semmle//qhelp//EN"
-  "qhelp.dtd">
-<qhelp>
-<fragment>
-<warning>
-This check is an approximation, so some results may not be actual defects in the program. 
-It is not possible in general to compute the exact value of the variable without running the program with all possible input data.
-</warning>
-</fragment>
-</qhelp>

cpp/ql/src/Critical/callGraphWarning.qhelp

@@ -1,12 +0,0 @@
-<!DOCTYPE qhelp PUBLIC
-  "-//Semmle//qhelp//EN"
-  "qhelp.dtd">
-<qhelp>
-<fragment>
-<warning>
-This check is an approximation, so some results may not be actual defects in the program. 
-It is not possible in general to compute which function is actually called in a virtual call,
-or a call through a pointer, without running the program with all possible input data.
-</warning>
-</fragment>
-</qhelp>

cpp/ql/src/Critical/dataFlowWarning.qhelp

@@ -1,13 +0,0 @@
-<!DOCTYPE qhelp PUBLIC
-  "-//Semmle//qhelp//EN"
-  "qhelp.dtd">
-<qhelp>
-<fragment>
-<warning>
-This check is an approximation, so some results may not be actual defects in the program. 
-It is not possible in general to compute the actual branch taken in conditional statements such
-as "if" without running the program with all possible input data. This means that it is not possible
-to determine if a particular statement is going to be executed.
-</warning>
-</fragment>
-</qhelp>

cpp/ql/src/Critical/pointsToWarning.qhelp

@@ -1,11 +0,0 @@
-<!DOCTYPE qhelp PUBLIC
-  "-//Semmle//qhelp//EN"
-  "qhelp.dtd">
-<qhelp>
-<fragment>
-<warning>
-This check is an approximation, so some results may not be actual defects in the program. It is not possible 
-in general to compute the values of pointers without running the program with all input data.
-</warning>
-</fragment>
-</qhelp>

cpp/ql/src/Documentation/CaptionedComments.qll

@@ -4,10 +4,6 @@
 
 import cpp
 
-/**
- * Gets a string representation of the comment `c` containing the caption 'TODO' or 'FIXME'.
- * If `c` spans multiple lines, all lines after the first are abbreviated as [...].
- */
 string getCommentTextCaptioned(Comment c, string caption) {
   (caption = "TODO" or caption = "FIXME") and
   exists(

cpp/ql/src/Documentation/CommentedOutCode.qhelp

@@ -3,5 +3,5 @@
   "qhelp.dtd">
 <qhelp>
   <include src="CommentedOutCodeQuery.qhelp" />
-  <include src="../Metrics/Files/CommentedOutCodeReferences.qhelp" />
+  <include src="CommentedOutCodeReferences.qhelp" />
 </qhelp>

cpp/ql/src/Documentation/CommentedOutCode.qll

@@ -1,7 +1,3 @@
-/**
- * Provides classes and predicates for identifying C/C++ comments that look like code.
- */
-
 import cpp
 
 /**
@@ -141,14 +137,8 @@ class CommentBlock extends Comment {
     )
   }
 
-  /**
-   * Gets the last comment associated with this comment block.
-   */
   Comment lastComment() { result = this.getComment(max(int i | exists(this.getComment(i)))) }
 
-  /**
-   * Gets the contents of the `i`'th comment associated with this comment block.
-   */
   string getLine(int i) {
     this instanceof CStyleComment and
     result = this.getContents().regexpCapture("(?s)/\\*+(.*)\\*+/", 1).splitAt("\n", i)
@@ -156,24 +146,14 @@ class CommentBlock extends Comment {
     this instanceof CppStyleComment and result = this.getComment(i).getContents().suffix(2)
   }
 
-  /**
-   * Gets the number of lines in the comments associated with this comment block.
-   */
   int numLines() {
     result = strictcount(int i, string line | line = this.getLine(i) and line.trim() != "")
   }
 
-  /**
-   * Gets the number of lines that look like code in the comments associated with this comment block.
-   */
   int numCodeLines() {
     result = strictcount(int i, string line | line = this.getLine(i) and looksLikeCode(line))
   }
 
-  /**
-   * Holds if the comment block is a C-style comment, and each
-   * comment line starts with a *.
-   */
   predicate isDocumentation() {
     // If a C-style comment starts each line with a *, then it's
     // probably documentation rather than code.
@@ -181,12 +161,6 @@ class CommentBlock extends Comment {
     forex(int i | i in [1 .. this.numLines() - 1] | this.getLine(i).trim().matches("*%"))
   }
 
-  /**
-   * Holds if this comment block looks like code that has been commented out. Specifically:
-   * 1. It does not look like documentation (see `isDocumentation`).
-   * 2. It is not in a header file without any declaration entries or top level declarations.
-   * 3. More than half of the lines in the comment block look like code.
-   */
   predicate isCommentedOutCode() {
     not this.isDocumentation() and
     not this.getFile().(HeaderFile).noTopLevelCode() and

cpp/ql/src/Documentation/CommentedOutCodeQuery.qhelp

@@ -1,25 +0,0 @@
-<!DOCTYPE qhelp PUBLIC
-  "-//Semmle//qhelp//EN"
-  "qhelp.dtd">
-<qhelp>
-
-<overview>
-<p>
-Commented-out code is distracting and confusing for developers who read the surrounding code,
-and its significance is often unclear. It will not get compiled or tested when the code around
-it changes, so it's likely to break over time. For these reasons, commented-out code should be
-avoided.
-</p>
-
-</overview>
-
-<recommendation>
-
-<p>
-Remove or reinstate the commented-out code. If you want to include a snippet of example code
-in a comment, consider enclosing it in quotes or marking it up as appropriate for the source
-language.
-</p>
-
-</recommendation>
-</qhelp>

cpp/ql/src/JPL_C/LOC-2/Rule 11/SimpleControlFlowJmp.ql

@@ -13,7 +13,14 @@
 import cpp
 
 class ForbiddenFunction extends Function {
-  ForbiddenFunction() { this.getName() = ["setjmp", "longjmp", "sigsetjmp", "siglongjmp"] }
+  ForbiddenFunction() {
+    exists(string name | name = this.getName() |
+      name = "setjmp" or
+      name = "longjmp" or
+      name = "sigsetjmp" or
+      name = "siglongjmp"
+    )
+  }
 }
 
 from FunctionCall call

cpp/ql/src/JPL_C/LOC-4/Rule 21/MacroInBlock.ql

@@ -12,7 +12,7 @@
 import cpp
 
 int lineInBlock(File f) {
-  exists(BlockStmt block, Location blockLocation |
+  exists(Block block, Location blockLocation |
     block.getFile() = f and blockLocation = block.getLocation()
   |
     result in [blockLocation.getStartLine() .. blockLocation.getEndLine()]

cpp/ql/src/Likely Bugs/Arithmetic/BadCheckOdd.qhelp

@@ -23,7 +23,7 @@ As a result, this check incorrectly considers all negative numbers as even.
 <references>
 
 <li>
-  MSDN Library: <a href="https://docs.microsoft.com/en-us/cpp/cpp/multiplicative-operators-and-the-modulus-operator">Multiplicative Operators and the Modulus Operator</a>.
+  MSDN Library: <a href="http://msdn.microsoft.com/en-us/library/ty2ax9z9%28v=vs.71%29.aspx">Multiplicative Operators: *, /, and %</a>.
 </li>
 <li>
   Wikipedia: <a href="http://en.wikipedia.org/wiki/Modulo_operation#Common_pitfalls">Modulo Operation - Common pitfalls</a>.

cpp/ql/src/Likely Bugs/Arithmetic/BitwiseSignCheck.qhelp

@@ -24,7 +24,7 @@
   Code Project: <a href="http://www.codeproject.com/Articles/2247/An-introduction-to-bitwise-operators">An introduction to bitwise operators</a>
 </li>
 <li>
-  MSDN Library: <a href="https://docs.microsoft.com/en-us/cpp/c-language/signed-bitwise-operations">Signed Bitwise Operations</a>
+  MSDN Library: <a href="https://msdn.microsoft.com/en-us/library/dxda59dh.aspx">Signed Bitwise Operations</a>
 </li>
 
 

cpp/ql/src/Likely Bugs/Arithmetic/ComparisonPrecedence.qhelp

@@ -21,7 +21,7 @@ It is best to fully parenthesize complex comparison expressions to explicitly de
 <references>
 
 <li>
-  MSDN Library: <a href="https://docs.microsoft.com/en-us/cpp/cpp/cpp-built-in-operators-precedence-and-associativity">C++ built-in operators, precedence, and associativity</a>
+  <a href="http://msdn.microsoft.com/en-us/library/126fe14k%28v=VS.80%29.aspx">Operator Precedence and Associativity</a>
 </li>
 <li>
   <a href="http://www.cplusplus.com/doc/tutorial/operators/">Operators</a>

cpp/ql/src/Likely Bugs/Arithmetic/FloatComparison.qhelp

@@ -24,7 +24,7 @@ as rounding errors will be more prominent when using such values.
 
 <li>
   D. Goldberg, <em>What Every Computer Scientist Should Know About Floating-Point Arithmetic</em>,
-ACM Computing Surveys, Volume 23, Issue 1, March 1991 (<a href="https://docs.oracle.com/cd/E19957-01/806-3568/ncg_goldberg.html">available online</a>).
+ACM Computing Surveys, Volume 23, Issue 1, March 1991 (<a href="http://docs.sun.com/source/806-3568/ncg_goldberg.html">available online</a>).
 </li>
 
 

cpp/ql/src/Likely Bugs/Arithmetic/IntMultToLong.cpp

@@ -4,5 +4,3 @@ long j = i * i; //Wrong: due to overflow on the multiplication between ints,
 
 long k = (long) i * i; //Correct: the multiplication is done on longs instead of ints, 
                        //and will not overflow
-
-long l = static_cast<long>(i) * i; //Correct: modern C++

cpp/ql/src/Likely Bugs/Arithmetic/IntMultToLong.qhelp

@@ -23,7 +23,7 @@ the expression would produce a result that would be too large to fit in the smal
 <references>
 
 <li>
-  MSDN Library: <a href="https://docs.microsoft.com/en-us/cpp/cpp/multiplicative-operators-and-the-modulus-operator">Multiplicative Operators and the Modulus Operator</a>.
+  MSDN Library: <a href="http://msdn.microsoft.com/en-us/library/ty2ax9z9%28v=vs.71%29.aspx">Multiplicative Operators: *, /, and %</a>.
 </li>
 <li>
   Cplusplus.com: <a href="http://www.cplusplus.com/articles/DE18T05o/">Integer overflow</a>.

cpp/ql/src/Likely Bugs/Conversion/LossyPointerCast.qhelp

@@ -23,7 +23,7 @@ the latter occupies eight bytes on a 64-bit machine.</p>
 <references>
 
 <li>
-  MSDN Library: <a href="https://docs.microsoft.com/en-us/cpp/cpp/type-conversions-and-type-safety-modern-cpp">Type Conversions and Type Safety</a>.
+  MSDN Library: <a href="http://msdn.microsoft.com/en-us/library/hh279667.aspx">Type Conversions and Type Safety (Modern C++)</a>.
 </li>
 <li>
   Cplusplus.com: <a href="http://www.cplusplus.com/doc/tutorial/typecasting/">Type conversions</a>.

cpp/ql/src/Likely Bugs/Format/WrongTypeFormatArguments.qhelp

@@ -23,7 +23,7 @@ the function.
 <li>CERT C Coding
 Standard: <a href="https://www.securecoding.cert.org/confluence/display/c/FIO30-C.+Exclude+user+input+from+format+strings">FIO30-C. Exclude user input from format strings</a>.</li>
 <li>cplusplus.com: <a href="http://www.tutorialspoint.com/cplusplus/cpp_functions.htm">C++ Functions</a>.</li>
-<li>CRT Alphabetical Function Reference: <a href="https://docs.microsoft.com/en-us/cpp/c-runtime-library/reference/printf-printf-l-wprintf-wprintf-l">printf, _printf_l, wprintf, _wprintf_l</a>.</li>
+<li>MSDN Alphabetical Function Reference: <a href="http://msdn.microsoft.com/en-us/library/wc7014hz%28VS.71%29.aspx">printf, wprintf</a>.</li>
 
 
 

cpp/ql/src/Likely Bugs/Format/WrongTypeFormatArguments.ql

@@ -155,8 +155,7 @@ where
     not actual.getUnspecifiedType().(IntegralType).getSize() = sizeof_IntType()
   ) and
   not arg.isAffectedByMacro() and
-  not arg.isFromUninstantiatedTemplate(_) and
-  not actual.getUnspecifiedType() instanceof ErroneousType
+  not arg.isFromUninstantiatedTemplate(_)
 select arg,
   "This argument should be of type '" + expected.getName() + "' but is of type '" +
     actual.getUnspecifiedType().getName() + "'"

cpp/ql/src/Likely Bugs/Leap Year/Adding365DaysPerYear.qhelp

@@ -15,7 +15,7 @@ of days.  Alternatively, use an established library routine that already contain
 </recommendation>
 
 <references>
-  <li>NASA / Goddard Space Flight Center - <a href="https://eclipse.gsfc.nasa.gov/SEhelp/calendars.html">Calendars</a></li>
+  <li>U.S. Naval Observatory Website - <a href="https://aa.usno.navy.mil/faq/docs/calendars.php"> Introduction to Calendars</a></li>
   <li>Wikipedia - <a href="https://en.wikipedia.org/wiki/Leap_year_bug"> Leap year bug</a> </li>
   <li>Microsoft Azure blog - <a href="https://azure.microsoft.com/en-us/blog/is-your-code-ready-for-the-leap-year/"> Is your code ready for the leap year?</a> </li>
 </references>

cpp/ql/src/Likely Bugs/Leap Year/UncheckedLeapYearAfterYearModification.qhelp

@@ -22,7 +22,7 @@
 </example>
 
 <references>
-  <li>NASA / Goddard Space Flight Center - <a href="https://eclipse.gsfc.nasa.gov/SEhelp/calendars.html">Calendars</a></li>
+  <li>U.S. Naval Observatory Website - <a href="https://aa.usno.navy.mil/faq/docs/calendars.php"> Introduction to Calendars</a></li>
   <li>Wikipedia - <a href="https://en.wikipedia.org/wiki/Leap_year_bug"> Leap year bug</a> </li>
   <li>Microsoft Azure blog - <a href="https://azure.microsoft.com/en-us/blog/is-your-code-ready-for-the-leap-year/"> Is your code ready for the leap year?</a> </li>
 </references>

cpp/ql/src/Likely Bugs/Leap Year/UncheckedReturnValueForTimeFunctions.qhelp

@@ -34,7 +34,7 @@
 </example>
 
 <references>
-  <li>NASA / Goddard Space Flight Center - <a href="https://eclipse.gsfc.nasa.gov/SEhelp/calendars.html">Calendars</a></li>
+  <li>U.S. Naval Observatory Website - <a href="https://aa.usno.navy.mil/faq/docs/calendars.php"> Introduction to Calendars</a></li>
   <li>Wikipedia - <a href="https://en.wikipedia.org/wiki/Leap_year_bug"> Leap year bug</a> </li>
   <li>Microsoft Azure blog - <a href="https://azure.microsoft.com/en-us/blog/is-your-code-ready-for-the-leap-year/"> Is your code ready for the leap year?</a> </li>
 </references>

cpp/ql/src/Likely Bugs/Leap Year/UncheckedReturnValueForTimeFunctions.ql

@@ -40,7 +40,9 @@ class DateStructModifiedFieldAccess extends LeapYearFieldAccess {
  */
 class SafeTimeGatheringFunction extends Function {
   SafeTimeGatheringFunction() {
-    this.getQualifiedName() = ["GetFileTime", "GetSystemTime", "NtQuerySystemTime"]
+    this.getQualifiedName() = "GetFileTime" or
+    this.getQualifiedName() = "GetSystemTime" or
+    this.getQualifiedName() = "NtQuerySystemTime"
   }
 }
 
@@ -49,11 +51,15 @@ class SafeTimeGatheringFunction extends Function {
  */
 class TimeConversionFunction extends Function {
   TimeConversionFunction() {
-    this.getQualifiedName() =
-      ["FileTimeToSystemTime", "SystemTimeToFileTime", "SystemTimeToTzSpecificLocalTime",
-          "SystemTimeToTzSpecificLocalTimeEx", "TzSpecificLocalTimeToSystemTime",
-          "TzSpecificLocalTimeToSystemTimeEx", "RtlLocalTimeToSystemTime",
-          "RtlTimeToSecondsSince1970", "_mkgmtime"]
+    this.getQualifiedName() = "FileTimeToSystemTime" or
+    this.getQualifiedName() = "SystemTimeToFileTime" or
+    this.getQualifiedName() = "SystemTimeToTzSpecificLocalTime" or
+    this.getQualifiedName() = "SystemTimeToTzSpecificLocalTimeEx" or
+    this.getQualifiedName() = "TzSpecificLocalTimeToSystemTime" or
+    this.getQualifiedName() = "TzSpecificLocalTimeToSystemTimeEx" or
+    this.getQualifiedName() = "RtlLocalTimeToSystemTime" or
+    this.getQualifiedName() = "RtlTimeToSecondsSince1970" or
+    this.getQualifiedName() = "_mkgmtime"
   }
 }
 

cpp/ql/src/Likely Bugs/Leap Year/UnsafeArrayForDaysOfYear.qhelp

@@ -23,7 +23,7 @@
 </example>
 
 <references>
-  <li>NASA / Goddard Space Flight Center - <a href="https://eclipse.gsfc.nasa.gov/SEhelp/calendars.html">Calendars</a></li>
+  <li>U.S. Naval Observatory Website - <a href="https://aa.usno.navy.mil/faq/docs/calendars.php"> Introduction to Calendars</a></li>
   <li>Wikipedia - <a href="https://en.wikipedia.org/wiki/Leap_year_bug"> Leap year bug</a> </li>
   <li>Microsoft Azure blog - <a href="https://azure.microsoft.com/en-us/blog/is-your-code-ready-for-the-leap-year/"> Is your code ready for the leap year?</a> </li>
 </references>

cpp/ql/src/Likely Bugs/Likely Typos/FutileConditional.ql

@@ -27,11 +27,11 @@ predicate macroUseLocation(File f, int start, int end) {
 }
 
 pragma[noopt]
-predicate emptyIf(IfStmt s, BlockStmt b, File f, int start, int end) {
+predicate emptyIf(IfStmt s, Block b, File f, int start, int end) {
   s instanceof IfStmt and
   not exists(s.getElse()) and
   b = s.getThen() and
-  b instanceof BlockStmt and
+  b instanceof Block and
   not exists(b.getAChild()) and
   f = b.getFile() and
   exists(Location l |
@@ -42,7 +42,7 @@ predicate emptyIf(IfStmt s, BlockStmt b, File f, int start, int end) {
 }
 
 pragma[noopt]
-predicate query(IfStmt s, BlockStmt b) {
+predicate query(IfStmt s, Block b) {
   exists(File f, int blockStart, int blockEnd |
     emptyIf(s, b, f, blockStart, blockEnd) and
     not exists(int macroStart, int macroEnd |
@@ -53,7 +53,7 @@ predicate query(IfStmt s, BlockStmt b) {
   )
 }
 
-from IfStmt s, BlockStmt b
+from IfStmt s, Block b
 where
   query(s, b) and
   not b.isInMacroExpansion()

cpp/ql/src/Likely Bugs/Likely Typos/MissingEnumCaseInSwitch.qhelp

@@ -23,7 +23,7 @@ indication that there may be cases unhandled by the <code>switch</code> statemen
   Tutorialspoint - The C++ Programming Language: <a href="http://www.tutorialspoint.com/cplusplus/cpp_switch_statement.htm">C++ switch statement</a>
 </li>
 <li>
-  MSDN Library: <a href="https://docs.microsoft.com/en-us/cpp/cpp/switch-statement-cpp">switch statement (C++)</a>
+  MSDN Library: <a href="http://msdn.microsoft.com/en-us/library/k0t5wee3%28v=VS.80%29.aspx">The switch Statement</a>
 </li>
 <li>
   M. Henricson and E. Nyquist, <i>Industrial Strength C++</i>, Chapter 4: Control Flow, Rec 4.5. Prentice Hall PTR, 1997 (<a href="http://mongers.org/industrial-c++/">available online</a>).

cpp/ql/src/Likely Bugs/Likely Typos/UsingStrcpyAsBoolean.ql

@@ -15,15 +15,6 @@ import cpp
 import semmle.code.cpp.models.implementations.Strcpy
 import semmle.code.cpp.dataflow.DataFlow
 
-/**
- * A string copy function that returns a string, rather than an error code (for
- * example, `strcpy` returns a string, whereas `strcpy_s` returns an error
- * code).
- */
-class InterestingStrcpyFunction extends StrcpyFunction {
-  InterestingStrcpyFunction() { getType().getUnspecifiedType() instanceof PointerType }
-}
-
 predicate isBoolean(Expr e1) {
   exists(Type t1 |
     t1 = e1.getType() and
@@ -34,12 +25,12 @@ predicate isBoolean(Expr e1) {
 predicate isStringCopyCastedAsBoolean(FunctionCall func, Expr expr1, string msg) {
   DataFlow::localExprFlow(func, expr1) and
   isBoolean(expr1.getConversion*()) and
-  func.getTarget() instanceof InterestingStrcpyFunction and
+  func.getTarget() instanceof StrcpyFunction and
   msg = "Return value of " + func.getTarget().getName() + " used as a Boolean."
 }
 
 predicate isStringCopyUsedInLogicalOperationOrCondition(FunctionCall func, Expr expr1, string msg) {
-  func.getTarget() instanceof InterestingStrcpyFunction and
+  func.getTarget() instanceof StrcpyFunction and
   (
     (
       // it is being used in an equality or logical operation

cpp/ql/src/Likely Bugs/Likely Typos/inconsistentLoopDirection.ql

@@ -50,12 +50,7 @@ predicate illDefinedDecrForStmt(
     DataFlow::localFlowStep(DataFlow::exprNode(initialCondition), DataFlow::exprNode(lesserOperand)) and
     // `initialCondition` < `terminalCondition`
     (
-      upperBound(initialCondition) < lowerBound(terminalCondition) and
-      (
-        // exclude cases where the loop counter is `unsigned` (where wrapping behaviour can be used deliberately)
-        v.getUnspecifiedType().(IntegralType).isSigned() or
-        initialCondition.getValue().toInt() = 0
-      )
+      upperBound(initialCondition) < lowerBound(terminalCondition)
       or
       (forstmt.conditionAlwaysFalse() or forstmt.conditionAlwaysTrue())
     )

cpp/ql/src/Likely Bugs/Memory Management/Padding/NonPortablePrintf.ql

@@ -88,8 +88,7 @@ where
   not arg.isAffectedByMacro() and
   size32 = ilp32.paddedSize(actual) and
   size64 = lp64.paddedSize(actual) and
-  size64 != size32 and
-  not actual instanceof ErroneousType
+  size64 != size32
 select arg,
   "This argument should be of type '" + expected.getName() + "' but is of type '" + actual.getName()
     + "' (which changes size from " + size32 + " to " + size64 + " on 64-bit systems)."

cpp/ql/src/Likely Bugs/Memory Management/SuspiciousCallToMemset.qhelp

@@ -30,7 +30,7 @@ For an array, the size is the number of elements of the array multiplied by the
   Cplusplus.comn: <a href="http://www.cplusplus.com/reference/clibrary/cstring/memset/">memset</a>
 </li>
 <li>
-  MSDN Library: <a href="https://docs.microsoft.com/en-us/cpp/c-runtime-library/reference/memset-wmemset">memset, wmemset</a>, <a href="https://docs.microsoft.com/en-us/cpp/cpp/sizeof-operator">sizeof Operator</a>
+  MSDN Library: <a href="http://msdn.microsoft.com/en-us/library/aa246471%28v=VS.60%29.aspx">memset</a>, <a href="http://msdn.microsoft.com/en-us/library/4s7x1k91%28v=VS.71%29.aspx">sizeof Operator</a>
 </li>
 
 

cpp/ql/src/Likely Bugs/NestedLoopSameVar.qhelp

@@ -25,6 +25,9 @@ outer loop. </p>
 <li>
   Tutorialspoint - The C++ Programming Language: <a href="http://www.tutorialspoint.com/cplusplus/cpp_nested_loops.htm">C++ nested loops</a>
 </li>
+<li>
+  MSDN Library: <a href="http://msdn.microsoft.com/en-us/library/8y82wx12%28v=VS.80%29.aspx">Nested Control Structures</a>
+</li>
 
 
 

cpp/ql/src/Likely Bugs/OO/NonVirtualDestructor.qhelp

@@ -20,7 +20,7 @@ object instance).</p>
 
 </example>
 <references>
-<li>R. Chen, <a href="https://devblogs.microsoft.com/oldnewthing/20040507-00/?p=39443">When should your destructor be virtual?</a>.</li>
+<li>R. Chen, <a href="http://blogs.msdn.com/oldnewthing/archive/2004/05/07/127826.aspx">When should your destructor be virtual?</a>.</li>
 <li>S. Meyers. <em>Effective C++ 3d ed.</em> pp 40-44. Addison-Wesley Professional, 2005.</li>
 </references>
 </qhelp>

cpp/ql/src/Likely Bugs/RedundantNullCheckSimple.ql

@@ -23,7 +23,7 @@ import semmle.code.cpp.ir.ValueNumbering
 class NullInstruction extends ConstantValueInstruction {
   NullInstruction() {
     this.getValue() = "0" and
-    this.getResultIRType() instanceof IRAddressType
+    this.getResultType().getUnspecifiedType() instanceof PointerType
   }
 }
 
@@ -44,8 +44,8 @@ predicate explicitNullTestOfInstruction(Instruction checked, Instruction bool) {
   bool =
     any(ConvertInstruction convert |
       checked = convert.getUnary() and
-      convert.getResultIRType() instanceof IRBooleanType and
-      checked.getResultIRType() instanceof IRAddressType
+      convert.getResultType() instanceof BoolType and
+      checked.getResultType() instanceof PointerType
     )
 }
 

cpp/ql/src/Likely Bugs/Underspecified Functions/MistypedFunctionArguments.qll

@@ -6,7 +6,6 @@
 
 import cpp
 
-pragma[inline]
 private predicate arithTypesMatch(Type arg, Type parm) {
   arg = parm
   or

cpp/ql/src/Likely Bugs/Underspecified Functions/TooFewArguments.qll

@@ -6,50 +6,29 @@
 
 import cpp
 
-/**
- * Holds if `fde` has a parameter declaration that's clear on the minimum
- * number of parameters. This is essentially true for everything except
- * `()`-declarations.
- */
-private predicate hasDefiniteNumberOfParameters(FunctionDeclarationEntry fde) {
-  fde.hasVoidParamList()
-  or
-  fde.getNumberOfParameters() > 0
-  or
-  fde.isDefinition()
-}
-
-/* Holds if function was ()-declared, but not (void)-declared or K&R-defined. */
+// True if function was ()-declared, but not (void)-declared or K&R-defined
 private predicate hasZeroParamDecl(Function f) {
   exists(FunctionDeclarationEntry fde | fde = f.getADeclarationEntry() |
-    not hasDefiniteNumberOfParameters(fde)
+    not fde.hasVoidParamList() and fde.getNumberOfParameters() = 0 and not fde.isDefinition()
   )
 }
 
-/* Holds if this file (or header) was compiled as a C file. */
+// True if this file (or header) was compiled as a C file
 private predicate isCompiledAsC(File f) {
   f.compiledAsC()
   or
   exists(File src | isCompiledAsC(src) | src.getAnIncludedFile() = f)
 }
 
-/** Holds if `fc` is a call to `f` with too few arguments. */
 predicate tooFewArguments(FunctionCall fc, Function f) {
   f = fc.getTarget() and
   not f.isVarargs() and
   not f instanceof BuiltInFunction and
-  // This query should only have results on C (not C++) functions that have a
-  // `()` parameter list somewhere. If it has results on other functions, then
-  // it's probably because the extractor only saw a partial compilation.
   hasZeroParamDecl(f) and
   isCompiledAsC(f.getFile()) and
-  // Produce an alert when all declarations that are authoritative on the
-  // parameter count specify a parameter count larger than the number of call
-  // arguments.
-  forex(FunctionDeclarationEntry fde |
-    fde = f.getADeclarationEntry() and
-    hasDefiniteNumberOfParameters(fde)
-  |
+  // There is an explicit declaration of the function whose parameter count is larger
+  // than the number of call arguments
+  exists(FunctionDeclarationEntry fde | fde = f.getADeclarationEntry() |
     fde.getNumberOfParameters() > fc.getNumberOfArguments()
   )
 }

cpp/ql/src/Metrics/Dependencies/ExternalDependencies.ql

@@ -1,5 +1,4 @@
 /**
- * @deprecated
  * @name External dependencies
  * @description Count the number of dependencies a C/C++ source file has on external libraries.
  * @kind treemap

cpp/ql/src/Metrics/Dependencies/ExternalDependenciesSourceLinks.ql

@@ -1,5 +1,4 @@
 /**
- * @deprecated
  * @name External dependency source links
  * @kind source-link
  * @metricType externalDependency

cpp/ql/src/Metrics/Files/CommentedOutCodeMetricOverview.qhelp

@@ -1,12 +0,0 @@
-<!DOCTYPE qhelp PUBLIC
-  "-//Semmle//qhelp//EN"
-  "qhelp.dtd">
-<qhelp>
-<overview>
-<p>
-This metric counts the number of lines of commented-out code in each file. Large amounts of
-commented-out code often indicate poorly maintained code.
-</p>
-
-</overview>
-</qhelp>

cpp/ql/src/Metrics/Files/CommentedOutCodeReferences.qhelp

@@ -1,12 +0,0 @@
-<!DOCTYPE qhelp PUBLIC
-  "-//Semmle//qhelp//EN"
-  "qhelp.dtd">
-<qhelp>
-<references>
-
-<li>Mark Needham: <a href="http://www.markhneedham.com/blog/2009/01/17/the-danger-of-commenting-out-code/">The danger of commenting out code</a>.</li>
-<li>Los Techies: <a href="http://lostechies.com/rodpaddock/2010/12/29/commented-code-technical-debt">Commented Code == Technical Debt</a>.</li>
-<li>High Integrity C++ Coding Standard: <a href="http://www.codingstandard.com/rule/2-3-2-do-not-comment-out-code/">2.3.2 Do not comment out code</a>.</li>
-
-</references>
-</qhelp>

cpp/ql/src/Metrics/Files/DuplicationProblems.qhelp

@@ -1,16 +0,0 @@
-<!DOCTYPE qhelp PUBLIC
-  "-//Semmle//qhelp//EN"
-  "qhelp.dtd">
-<qhelp>
-<overview>
-<p>
-Duplicated code increases overall code size, making the code base
-harder to maintain and harder to understand. It also becomes harder to fix bugs,
-since a programmer applying a fix to one copy has to always remember to update
-other copies accordingly. Finally, code duplication is generally an indication of
-a poorly designed or hastily written code base, which typically suffers from other
-problems as well.
-</p>
-
-</overview>
-</qhelp>

cpp/ql/src/Metrics/Files/FLinesOfDuplicatedCode.ql

@@ -1,5 +1,4 @@
 /**
- * @deprecated
  * @name Duplicated lines in files
  * @description The number of lines in a file, including code, comment
  *              and whitespace lines, which are duplicated in at least