ContextUtil.scala

// To the extent possible under law, the author(s) have dedicated all copyright and related
// and neighboring rights to this snippet to the public domain worldwide. 
// This snippet is distributed without any warranty.
// See http://creativecommons.org/publicdomain/zero/1.0/.

import scala.quoted.*
import scala.collection.mutable

// import qctx.reflect.*

  def inlineExtensionProxy(tree: Term): Term =
    val rhss: mutable.Map[String, Term] = mutable.Map.empty
    object refTransformer extends TreeMap:
      override def transformStatement(tree: Statement)(owner: Symbol): Statement =
        tree match
          case ValDef(name, tpe, Some(body)) if name.contains("$proxy") =>
            rhss(name) = body
            ValDef.copy(tree)(name, tpe, None)
          case _ =>
            super.transformStatement(tree)(owner)

      override def transformTerm(tree: Term)(owner: Symbol): Term =
        tree match
          case Ident(name) if rhss.contains(name) => rhss(name)
          case _                                  => super.transformTerm(tree)(owner)
    end refTransformer
    refTransformer.transformTerm(tree)(Symbol.spliceOwner)