Byte Buddy
kotlinx.coroutines
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Byte Buddy | kotlinx.coroutines | |
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5 | 59 | |
5,998 | 12,701 | |
- | 0.6% | |
9.0 | 8.9 | |
15 days ago | 3 days ago | |
Java | Kotlin | |
Apache License 2.0 | Apache License 2.0 |
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For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
Byte Buddy
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Monkey-patching in Java
As seen above, the API exposes the user to low-level bytecode manipulation via byte arrays. It would be unwieldy to do it directly. Hence, real-life projects rely on bytecode manipulation libraries. ASM has been the traditional library for this, but it seems that Byte Buddy has superseded it. Note that Byte Buddy uses ASM but provides a higher-level abstraction.
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Any news on the Classfile API?
Just a drive-by comment: ByteBuddy is worth a look https://bytebuddy.net/. It is built on top of ASM.
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Proposed: A new CMake scripting language usable alongside existing one
> can you show an example of how you'd parse, say, a .java.in
The canonical way to do such a thing is through the java annotation processing api [1] and using a tool like java poet [2]. Before you did that, you'd probably decide if you wanted to instead use bytecode generation with a library like bytebuddy [3]
But, assuming for some reason, you wanted to torture yourself and actually consume a java.in file and apply a regex, then you'd probably pull out the "maven-replacer-plugin" [4] and configure that for the task at hand. (or use your favorite templating language plugin. There's a million of them).
Though, to be fair, this really isn't something that comes up in regular java programming due to the nature of the ecosystem. Anything you'd want to codegen likely already has a library and anything you didn't would receive (legitimate) push back.
[1] https://www.baeldung.com/java-annotation-processing-builder
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is rust the only language to have procedural macros?
Have a look at byte buddy.
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Byte Buddy on Android made possible
If you've ever used libraries like https://github.com/JakeWharton/hugo or https://hibernate.org/ (if you've ever done some backend development) and wondered how do they seem to add some code/logic into your app just by adding some annotation to some method, or if you ever wondered how mocking frameworks like Mockito can change a class behavior for example, then most likely you're interested in a programming technique that allows to modify existing code, usually known as Aspect oriented programming (also known in Java as Bytecode instrumentation) which, even though it might sound intimidating at first, some really cool tools such as Byte Buddy or AspectJ make it quite easy to accomplish.
kotlinx.coroutines
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Gradle: from Newbie to Strong fundamentals
Now, let's consider an example. For instance, let's create a Kotlin/JVM project with kotlinx.coroutines library as a dependency.
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Add `statefulMap` and `statefulTransform` operator to Kotlin coroutines' Flow
Greetings community, I just submited a PR to Kotlin coroutines with two additional operators :
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Should I choose Kotlin over Java for a new project (backend)?
The harder parts of Kotlin are going to be things like kotlinx.coroutines, but that's just a library, not a core part of the language. It's about as hard to learn as a comparable library in another language, like the Task Parallel Library in .NET.
- kotlinx.coroutines 1.7.0 released
- Is it ok to have global scopes when the coroutine I'm starting has *nothing* to do with showing UI, nor do I care about its result?
- Release 1.7.0-Beta ยท Kotlin/kotlinx.coroutines
- Does the documentation of async{} and launch{} apply to each other? (Aside from the difference that async {} returned a Deferred)
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Reactive Backend Applications with Spring Boot, Kotlin and Coroutines (Part 2)
Kotlin has coroutines that are supported by the language and implemented by a library (the implementation remains platform-dependent): kotlinx.coroutines and a sandbox environment is available here to try it out.
- Kotlinx Coroutines for Kotlin 1.7.x
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Get value from coroutine function
That said, since it seems like you're doing UI stuff (Android?), you're best off doing all of the UI code in coroutines, using Dispatchers.Main as a context (as provided by one of the platform-specific coroutine libraries), since this will guarantee that your UI code will be safely run in the UI thread.
What are some alternatives?
Javassist - Java bytecode engineering toolkit
kotlin-coroutines - Examples for coroutines design in Kotlin
Byteman - Byteman Project main repo
kotlin - The Kotlin Programming Language.
easydeviceinfo - :iphone: [Android Library] Get device information in a super easy way.
compose-multiplatform - Compose Multiplatform, a modern UI framework for Kotlin that makes building performant and beautiful user interfaces easy and enjoyable.
timber - A logger with a small, extensible API which provides utility on top of Android's normal Log class.
okio - A modern I/O library for Android, Java, and Kotlin Multiplatform.
joda-time-android - Joda-Time library with Android specialization
korim - Korim: Kotlin cORoutines IMaging, Bitmap and Vector graphics for Multiplatform Kotlin
StatusBarUtil - A util for setting status bar style on Android App.
korio - Korio: Kotlin cORoutines I/O : Virtual File System + Async/Sync Streams + Async TCP Client/Server + WebSockets for Multiplatform Kotlin 1.3