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refined.scala
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refined.scala
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/*
* Copyright 2022 Erik Erlandson
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package coulomb.syntax.refined
import coulomb.*
import coulomb.syntax.*
import eu.timepit.refined.*
import eu.timepit.refined.api.*
/**
* Lift a raw value into a unit quantity with a Refined value type
* @tparam P
* the Refined predicate type (e.g. Positive, NonNegative)
* @tparam U
* the desired unit type
* @param v
* the raw value to lift
* @return
* a unit quantity whose value is refined by P
* {{{
* val dist = refineVU[NonNegative, Meter](1.0)
* }}}
*/
def refineVU[P, U]: infra.ApplyRefineVU[P, U] =
new infra.ApplyRefineVU[P, U]
extension [V](v: V)
def withRefinedUnit[P, U](using
Validate[V, P]
): Quantity[Either[String, Refined[V, P]], U] =
refineV[P](v).withUnit[U]
object infra:
class ApplyRefineVU[P, U]:
def apply[V](v: V)(using
Validate[V, P]
): Quantity[Either[String, Refined[V, P]], U] =
refineV[P](v).withUnit[U]