Is there a way to automatically catch any of swift/objc exceptions/errors in

try ... catch ...

in Kotlin while calling

interface

method implemented in swift/objc? I saw relatively new

ForeignException

but afaik it only works for cinteroped libraries with special flag

ObjC errors aren’t thrown and caught like Java Exceptions. An error pointer is passed into the function and if after calling the function, it has a value, then the function has generated an error. Swift adds some syntactic sugar around this to make it look more like a traditional try catch but it is still fundamentally the same as the way ObjC errors are done. There are exceptions in ObjC that can be thrown but they’re meant for unrecoverable cases. If an ObjC exception is thrown, the program should gracefully shutdown quickly.

An error pointer is passed into the function and if after calling the function, it has a value, then the function has generated an error.

I’m getting the idea that Kotlin-ObjC interop layer could do this implicitly and rethrow as Kotlin exception if the error pointer has the value. Please correct me if I’m getting a wrong impression

Apple recommends a quick exit after an exception. https://developer.apple.com/library/archive/documentation/Cocoa/Conceptual/Exceptions/Articles/ExceptionsAndCocoaFrameworks.html#//apple_ref/doc/uid/TP40009045-SW1