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

what is

sequence

? that isn't the standard library's

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

Maybe that would be a case for context receivers.

sequence

could provide this information to nested

resolve

calls

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

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