io.github.arainko.ducktape.internal.extensions.scala Maven / Gradle / Ivy
package io.github.arainko.ducktape.internal
import scala.quoted.*
extension (tpe: Type[? <: AnyKind]) {
private[ducktape] def fullName(using Quotes): String = {
import quotes.reflect.*
TypeRepr.of(using tpe).show(using Printer.TypeReprCode)
}
private[ducktape] def repr(using Quotes): quotes.reflect.TypeRepr =
quotes.reflect.TypeRepr.of(using tpe)
}
extension (expr: Expr[Any]) {
private[ducktape] def accessFieldByName(name: String)(using Quotes): quotes.reflect.Select = {
import quotes.reflect.*
Select.unique(expr.asTerm, name)
}
private[ducktape] def accesFieldByIndex(index: Int, parentStructure: Structure.Tuple)(using Quotes): Expr[Any] = {
import quotes.reflect.*
if parentStructure.isPlain then accessFieldByName(s"_${index + 1}").asExpr // tuple accessors are 1 based
else
val tpeAtIndex = parentStructure.elements(index).tpe
(expr, tpeAtIndex) match {
case '{ $prod: scala.Product } -> '[tpe] => '{ $prod.productElement(${ Expr(index) }).asInstanceOf[tpe] }
}
}
}