How to find usage of deprecated code in kotlin with intellij-idea - kotlin

I want to automatically find all occurrences in my kotlin application where i use deprecated code (mostly methods which are annotated as deprecated)
I'm talking not about kotlin code which is deprecated in the kotlin spec, i mean kotlin code which calls a deprecated function/method.
The source where the deprecated function is located could be kotlin- or java- libraries.
I found really great tooling for finding similar issues in java code via intellij idea, like:
code -> inspect code
code -> analyse code -> inspection by name -> deprecated API usage
edit -> find -> find structurally -> select template deprecated methods (only available for java)
But i don't find a way for any similar search option for kotlin.
I tried to build a "deprecated api usage structural search"-template myself, but base functionalities to archive this seems not be supported for kotlin.
The only none manual function which works is the local code analyse of the file i'm currently in (this little hind in the upper right corner where you can see number of issues (and can click on them to have them in the a list))
This works but if i make a code analyse for a hole folder the deprecated usages are not there.
I need a solution for scanning the hole code base and not manually clicking from file to file.
Edit:
please note that there is now already a ticket created for jetbrains: https://youtrack.jetbrains.com/issue/IDEA-311206
Because it seems like there is no solution or workaround currently in place.

#Deprecated warning is a compiler warning, and you can not find it via IDE inspection search yet. Please follow an issue — https://youtrack.jetbrains.com/issue/KTIJ-12494/Analyze-Inspect-code-Inspection-results-show-compiler-warnings

Related

How to add an underscore mixin library to WebStorm?

In my work, we have a file with utilities functions that are extended in _.mixin() function at runtime. No, I cannot change the framework, because the solution would be to separate those function from _.mixin() and make them and indepent module, that would be the best.
Either way, my problem is that I cannot link this file, with all the extended functions in WebStorm, so I always see Unresolved function or method warning
Yes I have tried to add the file in the Library tab under Libraries & Framework preferences. And it did nothing.
So my question is, It is possible to WebStorm (or other Atlassian software) to link a file with several functions that will be extended with Underscore.js _.mixin() function to show up in Autocomplete?
Thanks, in advance
Adding the file to JavaScript libraries won't help here. _.mixin() dynamically adds passed utility functions to _ object, it's not possible to resolve such dynamically generated stuff during static code analysis unless a special treatment for the certain functions is provided. And WebStorm doesn't provide any special support for _.mixin().
If you miss it, please feel free to create a feature request in youtrack, https://youtrack.jetbrains.com/issues/WEB

Intellij - Find path to src directory

I am creating an IntelliJ plugin and I am using JavaParser for one of my features. My plugin will allow users to click a gutter icon next to a method and automatically navigate to the tests associated with that method.
To achieve this, temporerily I have used the line:
typeSolver.add(new JavaParserTypeSolver(new File("/home/webby/IdeaProjects/project00/src/")));
My problem is that I need to pass the source folder of the given module into this type solver. Is there any way I can find the source folder programmatically? Perhaps from an actionEvent?
I have tried things along the lines of the following:
actionEvent.getData(PlatformDataKeys.PROJECT).getBasePath()
This gives me: '/home/webby/IdeaProjects/project00/' but I'm struggling to see how I can get the source folder? I feel there should be a fairly straight forward way of doing this using IntelliJ's SDK but I have not found anything in the documentation or anywhere else online.
Any and all solutions welcome!
Many Thanks,
James
You can use
ModuleRootManager.getInstance(module).getSourceRoots()
to access sources roots of a module. Refer to IntelliJ SDK Docs for details.
BTW IntelliJ IDEA provides special API to syntax trees of Java files, it works more efficiently and better integrates with other IDE features than external JavaParsers.
And it's better to ask questions about IntelliJ IDEA API on a special forum.

How to make IntelliJ IDEA recognise code created by macros?

Background
I have an sbt-managed Scala project that uses the usual sbt project layout for Scala projects with macros, i.e., a subproject that contains the macros a main project that is the actual application and that depends on the macro subproject. The macros are macro annotations which, in essence, generate companion objects for regular classes. The generated companion objects declare, amongst other members, apply/unapply methods.
I used the sbt-idea plugin to generate a corresponding IntelliJ IDEA project, and I use the sbt console from IDEA's sbt-plugin to compile and run my Scala application.
Everything works more or less fine, except that the generated companion objects, and more importantly, their members such as apply/unapply, are not recognised by IDEA. Thus, I get a squiggly line everywhere I, e.g., an apply method.
My setup is IntelliJ IDEA CE 133.471 with the plugins SBT 1.5.1 and Scala 0.28.363 on Windows 7 x64.
Questions
How do I get IntelliJ IDEA to recognise code (classes, objects, methods, ...) that has been generated by Scala macros (macro annotations, to be precise)?
Are other IDEs, e.g., Eclipse, known to work better in such a setting?
Related
This question (which is less detailed) essentially asks the same, but has not gotten a reply yet (2014-02-26).
According to a JetBrains developer the feature I requested is on their long-term to-do list, but won't be implemented any time soon (2014-03-05).
With the latest Scala plugin build, there is an API which can be used to write your own plugin to support your macros: http://blog.jetbrains.com/scala/2015/10/14/intellij-api-to-build-scala-macros-support/
Now, everyone can use this API to make their macros more friendly to their favorite IDE. To do that, you have to implement SyntheticMembersInjector, and register it in the plugin.xml file:
<extensions defaultExtensionNs="org.intellij.scala">
<syntheticMemberInjector implementation="org.jetbrains.example.injector.Injector"/>
</extensions>
Seems like there's limited support if any.
Quote by this link: http://blog.jetbrains.com/scala/2014/01/23/heading-to-the-perfect-scala-code-analysis/
Alexander Podkhalyuzin says:
January 30, 2014 at 10:13 am
We started support for Scala macros, but it’s not a simple task, so I can’t promise it will be done soon.
Best regards,
Alexander Podkhalyuzin.

How can I create a single Clojure source file which can be safely used as a script and a library without AOT compilation?

I’ve spent some time researching this and though I’ve found some relevant info,
Here’s what I’ve found:
SO question: “What is the clojure equivalent of the Python idiom if __name__ == '__main__'?”
Some techniques at RosettaCode
A few discussions in the Cojure Google Group — most from 2009
but none of them have answered the question satisfactorily.
My Clojure source code file defines a namespace and a bunch of functions. There’s also a function which I want to be invoked when the source file is run as a script, but never when it’s imported as a library.
So: now that it’s 2012, is there a way to do this yet, without AOT compilation? If so, please enlighten me!
I'm assuming by run as a script you mean via clojure.main as follows:
java -cp clojure.jar clojure.main /path/to/myscript.clj
If so then there is a simple technique: put all the library functions in a separate namespace like mylibrary.clj. Then myscript.clj can use/require this library, as can your other code. But the specific functions in myscript.clj will only get called when it is run as a script.
As a bonus, this also gives you a good project structure, as you don't want script-specific code mixed in with your general library functions.
EDIT:
I don't think there is a robust within Clojure itself way to determine whether a single file was launched as a script or loaded as a library - from Clojure's perspective, there is no difference between the two (it all gets loaded in the same way via Compiler.load(...) in the Clojure source for anyone interested).
Options if you really want to detect the manner of the launch:
Write a main class in Java which sets a static flag then launched the Clojure script. You can easily test this flag from Clojure.
Use AOT compilation to implement a Clojure main class which sets a flag
Use *command-line-args* to indicate script usage. You'll need to pass an extra parameter like "script" on the command line.
Use a platform-specific method to determine the command line (e.g. from the environment variables in Windows)
Use the --eval option in the clojure.main command line to load your clj file and launch a specific function that represents your script. This function can then set a script-specific flag if needed
Use one of the methods for detecting the Java main class at runtime
I’ve come up with an approach which, while deeply flawed, seems to work.
I identify which namespaces are known when my program is running as a script. Then I can compare that number to the number of namespaces known at runtime. The idea is that if the file is being used as a lib, there should be at least one more namespace present than in the script case.
Of course, this is extremely hacky and brittle, but it does seem to work:
(defn running-as-script
"This is hacky and brittle but it seems to work. I’d love a better
way to do this; see http://stackoverflow.com/q/9027265"
[]
(let
[known-namespaces
#{"clojure.set"
"user"
"clojure.main"
"clj-time.format"
"clojure.core"
"rollup"
"clj-time.core"
"clojure.java.io"
"clojure.string"
"clojure.core.protocols"}]
(= (count (all-ns)) (count known-namespaces))))
This might be helpful: the github project lein-oneoff describes itself as "dependency management for one-off, single-file clojure programs."
This lets you define everything in one file, but you do need the oneoff plugin installed in order to run it from the command line.

Find child plug-ins of features in eclipse workspace

I want to find all the child plug-ins of a feature ? I know the name of the feature, but IWorkspaceRoot.getProject(String) does not really help me. I get an IProject that I don't know how to convert to a feature object (IFeature ?). Maybe I am on the wrong track and there is a better / easier way to do this. Any ideas ?
You could check that a selected IProject is a feature project by checking for the nature called org.eclipse.pde.FeatureNature.
Then you could try to use IProject.getAdapter(IFeature.class) call, the cast the result to IFeature. I did not try this with feature projects, but works well with Java projects.
The correct answer is the use of PDECore static class. This class provides a FeatureModelManager, that would provide the corresponding information:
FeatureModelManager manager = PDECore.getDefault().getFeatureModelManager();
How to obtain this information? I looked with the plug-in spy to find which project defines the 'Deployable Features' export wizard (use Alt+Shift+F3 when the wizard is selected), and then looked at the implementation of the wizard class, where the addPages() method contains the previously described code block.