joern | robust parser for C/C++ storing abstract syntax trees

 by   octopus-platform Java Version: 0.3.1 License: LGPL-3.0

kandi X-RAY | joern Summary

kandi X-RAY | joern Summary

joern is a Java library typically used in User Interface applications. joern has no bugs, it has no vulnerabilities, it has build file available, it has a Weak Copyleft License and it has high support. You can download it from GitHub.

A robust parser for C/C++ storing abstract syntax trees, control flow graphs and program dependence graphs in a neo4j graph database.

            kandi-support Support

              joern has a highly active ecosystem.
              It has 538 star(s) with 135 fork(s). There are 55 watchers for this library.
              It had no major release in the last 6 months.
              There are 45 open issues and 50 have been closed. On average issues are closed in 32 days. There are 1 open pull requests and 0 closed requests.
              It has a positive sentiment in the developer community.
              The latest version of joern is 0.3.1

            kandi-Quality Quality

              joern has 0 bugs and 0 code smells.

            kandi-Security Security

              joern has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.
              joern code analysis shows 0 unresolved vulnerabilities.
              There are 0 security hotspots that need review.

            kandi-License License

              joern is licensed under the LGPL-3.0 License. This license is Weak Copyleft.
              Weak Copyleft licenses have some restrictions, but you can use them in commercial projects.

            kandi-Reuse Reuse

              joern releases are not available. You will need to build from source code and install.
              Build file is available. You can build the component from source.

            Top functions reviewed by kandi - BETA

            kandi has reviewed joern and discovered the below as its top functions. This is intended to give you an instant insight into joern implemented functionality, and help decide if they suit your requirements.
            • Process a row
            • Handle FOR statement
            • Handle the ForEach statement
            • Handle a Closure node
            • Handles the type of a row
            • Parse a method
            • Parse a function definition
            • Parses a class row
            • Other brackets are ignored
            • Adds a function to the database
            • 11 4 Function Definition
            • Otherwise or semicolon
            • Otherwise or semicolon
            • MINOR_Curlies
            • Value
            • Add child symbols to the CUseExpression
            • Updates an observable
            • Returns theAST children of a given node
            • Recursively adds child symbols to the symbol table
            • Create a use definition for a given AST node
            • MINIALIZIES
            • Returns the nth argument code of a call
            • The operator context
            • Create a use definition for a given ASTProvider
            • Command line parser
            • 12 2
            Get all kandi verified functions for this library.

            joern Key Features

            No Key Features are available at this moment for joern.

            joern Examples and Code Snippets

            No Code Snippets are available at this moment for joern.

            Community Discussions


            rebuild project with helm
            Asked 2019-Nov-26 at 22:24

            Unable to start build pods for helm project with helm


            I am wondering what is the best way to rebuild pods in a helm project on openshift. I am working with java S2i images on openshift 3.10 / 3.11. After updating my Java Code in my repository I would like to start builds.

            Eventually I didn't find a solution to solve this problem. For a new deployment I set a timestamp inside the metadata of the deployment config.

            So my question is how to trigger new build with helm? Is there a better way as oc start build ?

            Thank you in advance,




            Answered 2019-Nov-26 at 22:24

            Based on the information in the comments, I assume you need to set the correct trigger for your OpenShift image builds. The straight-forward approach seems to be to rebuild the image on every change in the repo. Therefore you should not explicitly state the commit in the BuildConfig and set a Webhook-Trigger from your code repo. For github, add this trigger to your BuildConfig:



            Jenkins pipeline job checkout changed feature branch
            Asked 2019-Nov-22 at 13:41

            I have the following stage in my jenkins pipeline to get all branches of a project. I would like to trigger a build job, if one branch in project has changed on the changed branch.

            First detect the changed branch and then checkout this specific branch out (I know that a webhook from bitbucket/github to jenkins would work.).

            checkout all branches in project:



            Answered 2019-Nov-22 at 13:41

            I propose to use a multibranch pipeline. This simplifies the work you would like to do. The multibranch pipeline keeps track of all your branches and builds only the ones that were changed. You can even filter out branches that doesn’t need a build (e.g. feature branches).

            After this, you can select the relevant branches. You have multiple options to do this, now I attached one sample. In case the branch is not part of the selected branches list, then the pipeline will not start.

            In your Jenkinsfile, you just have to write def scmVars = checkout scm. This command will clone the repository and checks out the branch that was changed.



            Add vertical two finger swipe gesture to UIScrollView
            Asked 2018-Nov-01 at 08:21

            According to How to add a vertical swipe gesture to iPhone app for all screens, I add a two finger swipe down gesture to window, which works fine on normal pages throughout the whole app. But it fails on the page has UIScrollView (like UITableViewController). When I swipe down with two fingers on UIScrollView, it just scrolls it as normal. If I swipe from UINavigationBar that above UIScrollView, it works fine again.

            The ideal result is that I can scroll tableview by one finger normally, and call some method by swiping page with two fingers without scrolling tableview. This is used in TweetBot to switch dark mode, works perfectly.

            According to Apple's document: Using Responders and the Responder Chain to Handle Events, I think I understand how the Responder Chain works, so I want to ask UIScrollView to ignore the two fingers swipe gesture so that it can pass this event to UIWindow. But I can't figure out how to:

            I tried to implement UIGestureRecognizerDelegate's func gestureRecognizer(_:, shouldRequireFailureOf otherGestureRecognizer:) from Apple's document, or override gestureRecognizerShouldBegin(_) by inherit UITableView. But all didn't work.

            Any solutions or advice is welcomed.

            Update - Final Solution

            I simplified joern's solution and here is.

            In AppDelegate



            Answered 2018-Oct-29 at 10:03

            When you add the UISwipeGestureRecognizer to your window, keep a reference to it, so you can access it later via the AppDelegate:



            Local notification in swift 3 with new UI
            Asked 2017-Sep-05 at 06:20

            I know to how to create local notification in Swift 3( I am new in this part), However, I want to create something like below image. All tutorials in the web are too old and I do not what should I do.

            As you can see before extending notification , there are 2 buttons. after extending also there are 2 buttons with red and blue color.


            Thanks Joern

            The slide gesture only show clear. Is there any settings for showing both clear and view



            Answered 2017-Sep-05 at 06:20

            The red and blue buttons are only available in iOS versions prior to iOS 10. With iOS 10 the notifications design changed. The slide gesture is used for the standard actions Clear and View. The custom actions Snooze and Confirm will be displayed when you force touch the notification or pull it down (for devices without force touch). If you are using a device with force touch the View button might not be shown.

            The buttons look different now:

            So, here is how you implement Local Notifications with Swift 3 / 4:

            For iOS versions prior to iOS 10:

            If you are supporting iOS versions prior to iOS10 you have to use the old (deprecated with iOS 10) UILocalNotification:



            gremlin module not found
            Asked 2017-Apr-19 at 15:50

            I followed the instructions at:


            to install joern, and then the following to test Joern:


            And got this error (using ipython):



            Answered 2017-Apr-19 at 15:50

            You most likely have a version of py2neo installed that is incompatible with Joern. If you used pip to install py2neo, you will get v3.x but Joern appears to only support v2.0 at the moment. Run the following command to confirm:

            python -c "import py2neo; print py2neo.__version__"

            If the above does not print 2.0, remove py2neo by running pip uninstall py2neo and then install v2.0 specifically by running pip install py2neo==2.0. Then re-test by running python -c "from py2neo.ext.gremlin import Gremlin" - it should complete without errors.



            Access neo4j via python-joern
            Asked 2017-Feb-25 at 07:15

            When using Joern, I accessed the Neo4j database via python-joern with the following code.



            Answered 2017-Feb-25 at 07:15

            I had searched a lot for my question. Finally I found the solution here: Anyone who has got the same problem can see it.


            Community Discussions, Code Snippets contain sources that include Stack Exchange Network


            No vulnerabilities reported

            Install joern

            You can download it from GitHub.
            You can use joern like any standard Java library. Please include the the jar files in your classpath. You can also use any IDE and you can run and debug the joern component as you would do with any other Java program. Best practice is to use a build tool that supports dependency management such as Maven or Gradle. For Maven installation, please refer For Gradle installation, please refer .


            For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .
            Find more information at:

            Find, review, and download reusable Libraries, Code Snippets, Cloud APIs from over 650 million Knowledge Items

            Find more libraries
          • HTTPS


          • CLI

            gh repo clone octopus-platform/joern

          • sshUrl


          • Stay Updated

            Subscribe to our newsletter for trending solutions and developer bootcamps

            Agree to Sign up and Terms & Conditions

            Share this Page

            share link

            Explore Related Topics

            Consider Popular Java Libraries


            by CyC2018


            by Snailclimb


            by MisterBooo


            by spring-projects

            Try Top Libraries by octopus-platform


            by octopus-platformJava


            by octopus-platformPython


            by octopus-platformPython


            by octopus-platformJava


            by octopus-platformPython