Is it possible that java code generated by `Show k...

# announcements

[szymen]

Is it possible that java code generated by Show kotlin bytecode -> Decompile gives a different result than running kotlin code?

[ilya.gorbunov]

Definitely. Not every sequence of bytecode instructions can be decompiled to valid java code.

[szymen]

I have code as below:

fun main(args: Array<String>) {

    val demo = Demo()
    demo.printNumber()
}

class Demo {

    private val number
        get() = if (isValid) 0 else 1

    private val intHolder = SomeIntHolder(number)

    private val isValid = true

    fun printNumber() {
        println(intHolder.number)
    }

}

class SomeIntHolder(val number: Int)

In kotlin it prints 1, but generated java code prints 0. It's pretty strange for me. Can you explain me why generated output is different?

[szymen]

@ilya.gorbunov Also there is another problem, but with lint, in code above lint underlines if(isValid) and shows Condition is always true, but after quick fixing (Alt+Enter -> Simplify code) kotlin prints different result.
In this example order of properties is important, so lint is wrong. It's true only if private val isValid = true is above private val intHolder = SomeIntHolder(number).

[groostav]

Does this imply that java re-orders initializers to run constant-assignments before expression-assignments?