fun addExceptionLocked()

in kotlinx-coroutines-core/common/src/JobSupport.kt [1244:1264]

• 20 lines of code
• 4 McCabe index (conditional complexity)

        fun addExceptionLocked(exception: Throwable) {
            val rootCause = this.rootCause // volatile read
            if (rootCause == null) {
                this.rootCause = exception
                return
            }
            if (exception === rootCause) return // nothing to do
            when (val eh = exceptionsHolder) { // volatile read
                null -> exceptionsHolder = exception
                is Throwable -> {
                    if (exception === eh) return // nothing to do
                    exceptionsHolder = allocateList().apply {
                        add(eh)
                        add(exception)

                    }
                }
                is ArrayList<*> -> (eh as ArrayList<Throwable>).add(exception)
                else -> error("State is $eh") // already sealed -- cannot happen
            }
        }