In this snippet, sequence{} knows its in the `parens` rule if you check prop.name in getValue or pro...

# getting-started

[martmists]

In this snippet, sequence{} knows its in the parens rule if you check prop.name in getValue or provideDelegate, but is there a way the resolve() call could get access to this information somehow? I checked the stack trace and couldn't really find anything that could give this information

[ephemient]

what is sequence? that isn't the standard library's

[martmists]

This is a custom function in my code, it uses the delegate's name in case of an error and I want to be able to access it in the resolve() calls as well

[martmists]

Turns out you can find the name of the delegate when it's not inlined (sequence being marked as inline) by looking at the class name (in my case DummyParser$root$2) but when inlined this is not available (same call: DummyParser$special$$inlined$sequence$1)

[Joffrey]

Maybe that would be a case for context receivers. sequence could provide this information to nested resolve calls

[Joffrey]

But you could also pass it to resolve as a regular argument of course

[ephemient]

even without context receivers, if you write fun sequence(block: SequenceScope.() -> Unit) where interface SequenceScope { fun Char.resolve() }, then resolve can have access to it as long as you provide it in SequenceScope

[Joffrey]

Yes, I was assuming the object provided by sequence didn't know about resolve. Another option, if this is just for error handling, would be to add a try/catch inside the implementation of sequence that wraps exceptions into a higher level one with additional debug information. But that option might not always be possible/suitable depending on how sequence runs its lambda