-
Notifications
You must be signed in to change notification settings - Fork 4
/
Encoder.scala
77 lines (67 loc) · 2.32 KB
/
Encoder.scala
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
/*
* Copyright 2022 Hossein Naderi
*
* 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 dev.hnaderi.k8s.utils
trait Encoder[R] extends Serializable { self =>
def apply[T: Builder](r: R): T
final def contramap[A](f: A => R): Encoder[A] = new Encoder[A] {
def apply[T: Builder](a: A): T = self(f(a))
}
}
object Encoder {
def apply[R](implicit enc: Encoder[R]): Encoder[R] = enc
implicit lazy val intBuilder: Encoder[Int] =
new Encoder[Int] {
def apply[T](r: Int)(implicit b: Builder[T]): T = b.of(r)
}
implicit lazy val longBuilder: Encoder[Long] =
new Encoder[Long] {
def apply[T](r: Long)(implicit b: Builder[T]): T =
b.of(r)
}
implicit lazy val doubleBuilder: Encoder[Double] =
new Encoder[Double] {
def apply[T](r: Double)(implicit b: Builder[T]): T =
b.of(r)
}
implicit lazy val stringBuilder: Encoder[String] =
new Encoder[String] {
def apply[T](r: String)(implicit b: Builder[T]): T =
b.of(r)
}
implicit lazy val booleanBuilder: Encoder[Boolean] =
new Encoder[Boolean] {
def apply[T](r: Boolean)(implicit b: Builder[T]): T =
b.of(r)
}
implicit def seqBuilder[A](implicit enc: Encoder[A]): Encoder[Seq[A]] =
new Encoder[Seq[A]] {
def apply[T](r: Seq[A])(implicit b: Builder[T]): T = b.arr(r.map(enc(_)))
}
implicit def listBuilder[A](implicit enc: Encoder[A]): Encoder[List[A]] =
seqBuilder[A].contramap(_.toList)
implicit def mapBuilder[A](implicit
enc: Encoder[A]
): Encoder[Map[String, A]] =
new Encoder[Map[String, A]] {
def apply[T](r: Map[String, A])(implicit b: Builder[T]): T = b.obj(r.map {
case (k, v) =>
(k, enc(v))
})
}
def emptyObj[R]: Encoder[R] = new Encoder[R] {
def apply[T: Builder](r: R): T = Builder[T].ofFields()
}
}