lingua.cascade.Cascade.scala Maven / Gradle / Ivy
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/* Copyright (c) 2018 Lucas Satabin
*
* 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 lingua
package cascade
class Cascade[In, Inner, Ctx, Out](head: Layer[In, Inner, Ctx], tail: Transformer[Inner, Out]) extends Transformer[In, Out] {
def transform(s: Stream[In]): Stream[Out] =
tail.transform(head.transform(s))
def andThen[Out1](that: Transformer[Out, Out1]): Transformer[In, Out1] =
new Cascade(head, tail.andThen(that))
}