Can someone confirm that this crashes in kotlin 1....

# coroutines

[Paul Woitaschek]

Can someone confirm that this crashes in kotlin 1.4.20 with a VerifyError?

import kotlinx.coroutines.runBlocking

fun main() {
    val getTrainingEmoji = GetTrainingEmoji()
    runBlocking {
        getTrainingEmoji()
    }
}

inline class Emoji(val value: String)

class GetTrainingEmoji {

    suspend operator fun invoke(): Emoji {
        return Emoji("hello")
    }
}

[wasyl]

During compilation or in runtime?

[wasyl]

Compilation worked fine, when I tried running I did get `VerifyError`:

Exception in thread "main" java.lang.VerifyError: Bad type on operand stack
Exception Details:
  Location:
    TestKt$main$1.invokeSuspend(Ljava/lang/Object;)Ljava/lang/Object; @58: invokevirtual
  Reason:
    Type 'Emoji' (current frame, stack[0]) is not assignable to 'GetTrainingEmoji'
  Current Frame:
    bci: @58
    flags: { }
    locals: { 'TestKt$main$1', 'java/lang/Object', 'java/lang/Object' }
    stack: { 'Emoji', 'TestKt$main$1' }
  Bytecode:
    0x0000000: b800 1b4d 2ab4 001f aa00 0000 0000 004e
    0x0000010: 0000 0000 0000 0001 0000 0018 0000 003c
    0x0000020: 2bb8 0025 2ab4 0029 b400 2fc0 0031 c000
    0x0000030: 33b8 0039 2a2a 04b5 001f b600 3d59 2ca6
    0x0000040: 0010 2cb0 2bb8 0025 2bc0 0035 b600 41c0
    0x0000050: 0033 b800 39b0 bb00 4359 1245 b700 49bf
    0x0000060:                                        
  Stackmap Table:
    append_frame(@32,Object[#78])
    same_frame(@68)
    same_locals_1_stack_item_frame(@79,Object[#78])
    same_frame(@86)

	at TestKt.main(Test.kt:5)
	at TestKt.main(Test.kt)

[wasyl]

Kotlin 1.4.20, Coroutines 1.4.1

[Paul Woitaschek]

https://youtrack.jetbrains.com/issue/KT-43505

[Paul Woitaschek]

Thanks for verifying, this seems like the same issue