Does anyone know if a typealias is a compiler only...

# compiler

[mattinger]

Does anyone know if a typealias is a compiler only construct? For instance, if i have a type alias like this in a library

typealias Event = EventV1

Does the compiler replace all uses of Event with EventV1, or is there any runtime support? I’m basically looking at whether changing a typealias is an ABI breaking change.

[dmitriy.novozhilov]

Typealiases not affect ABI