caseapp.core.parser.MappedParser.scala Maven / Gradle / Ivy
package caseapp.core.parser
import caseapp.core.Scala3Helpers._
import caseapp.core.{Arg, Error}
import dataclass.data
import caseapp.core.util.Formatter
import caseapp.Name
case class MappedParser[T, U](underlying: Parser[T], f: T => U)
extends Parser[U] {
import MappedParser._
type D = underlying.D
def init: D =
underlying.init
def step(
args: List[String],
index: Int,
d: D,
nameFormatter: Formatter[Name]
): Either[(Error, Arg, List[String]), Option[(D, Arg, List[String])]] =
underlying.step(args, index, d, nameFormatter)
def get(d: D, nameFormatter: Formatter[Name]): Either[Error, U] =
underlying
.get(d, nameFormatter)
.map(f)
def args: Seq[Arg] =
underlying.args
override def defaultStopAtFirstUnrecognized: Boolean =
underlying.defaultStopAtFirstUnrecognized
override def defaultIgnoreUnrecognized: Boolean =
underlying.defaultIgnoreUnrecognized
override def defaultNameFormatter: Formatter[Name] =
underlying.defaultNameFormatter
def withDefaultOrigin(origin: String): Parser[U] =
this.withUnderlying(underlying.withDefaultOrigin(origin))
}
object MappedParser {
implicit class MappedParserWithOps[T, U](private val parser: MappedParser[T, U])
extends AnyVal {
def withUnderlying(underlying: Parser[T]): MappedParser[T, U] =
parser.copy(underlying = underlying)
}
}