Macro-Generated Field Referencing

[Zeimyth]

With Scala 2 macros, it was possible to take an arbitrary string and use it as the name of a field to reference:

val term = TermName("foo")
q"obj.$term"

Is this possible with the reflection API in Scala 3 macros? I feel like Symbols might be the most likely place for me to find what I'm looking for, but a Symbol seems to point me to the definition of an object's class. I can look up methods and fields defined on the class from a Symbol, but I can't figure out how to turn that into a field reference on an instance of that class.

[rayrobdod]

I don't know if there is a way to splice these into quasiquotes. When working with reflect trees, a Term can represent an instance of a class, and a Symbol can represent a method or field name. If you have a Term representing an object (probably from Expr#asTerm) and a Symbol representing the field, you can create a tree that calls the field on the object by creating a Select tree, either with Term#select or one of the SelectModule methods. Then the Select tree can be turned back into an Expr with Term#asExprOf.

[Zeimyth]

Worked like a charm! Term#select was the missing piece. Thank you!