Question or issue of Kotlin Programming:
I want to see the compiled bytecode so I can learn more about how it works under the cover. I’m using IntelliJ IDEA 15 but can’t find a way to see the bytecode. What am I missing?
How to solve this issue?
Solution no. 1:
IntelliJ IDEA comes with a bytecode viewing tool for Kotlin:
Also available through Ctrl / ⌘+Shift+A as Show Kotlin Bytecode action.
It’s a great tool that can jump to the corresponding bytecode when you move around in the source file. And it updates the bytecode on the fly whenever the source changes.
Solution no. 2:
I use https://javap.yawk.at/ to view byte code online. Set “Kotlin” as the input language and you are good to go.
It even has an option to see the decompiled Java code via Procyon, but it might crush from time to time.
Solution no. 3:
Just adding to the above answer.
Now, in the bytecode view, there is also an option to decompile the bytecode to Java. So, you can actually see both the bytecode and the equivalent java code in intellij. You even have an option to convert using JVM 8 target.