Pat Garrity
e44334b364
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Reviewed-on: #2
32 lines
974 B
Scala
32 lines
974 B
Scala
package gs.config.v0
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/** Base class for most [[Configuration]] implementations. Provides standard
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* support for properly handling default values and parsing strings to the
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* correct type, returning the correct errors.
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*/
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abstract class BaseConfiguration[F[_]] extends Configuration[F]:
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protected def handleMissingValue[A](
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key: ConfigKey[A]
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): Either[ConfigError, A] =
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key match
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case ConfigKey.WithDefaultValue(_, defaultValue) =>
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Right(defaultValue())
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case _ =>
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Left(ConfigError.MissingValue(key.name))
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protected def parse[A: Configurable](
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key: ConfigKey[A],
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raw: String,
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source: Option[String]
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): Either[ConfigError, A] =
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Configurable[A].parse(raw) match
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case None =>
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Left(
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ConfigError.CannotParseValue(
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configName = key.name,
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candidateValue = raw,
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source = source.getOrElse("")
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)
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)
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case Some(parsed) => Right(parsed)
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