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Merge pull request #426 from gnieh/json/jq
Add Jq implementation
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,81 @@ | ||
| /* | ||
| * Copyright 2023 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. | ||
| */ | ||
|
|
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| package fs2 | ||
| package data | ||
| package json | ||
| package jq | ||
|
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| import cats.data.NonEmptyList | ||
| import cats.syntax.all._ | ||
| import org.typelevel.literally.Literally | ||
|
|
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| import scala.annotation.unused | ||
| import scala.reflect.macros.blackbox.Context | ||
|
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| object literals { | ||
|
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| implicit class JqStringContext(val sc: StringContext) extends AnyVal { | ||
| def jq(args: Any*): Jq = macro JqInterpolator.make | ||
| } | ||
|
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| trait LiftableImpls { | ||
| val c: Context | ||
| import c.universe._ | ||
|
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| implicit def nel[T](implicit @unused T: Liftable[T]): Liftable[NonEmptyList[T]] = Liftable[NonEmptyList[T]] { | ||
| case NonEmptyList(t, Nil) => q"_root_.cats.data.NonEmptyList.one($t)" | ||
| case NonEmptyList(t, tail) => q"_root_.cats.data.NonEmptyList($t, $tail)" | ||
| } | ||
|
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| implicit lazy val jqLiftable: Liftable[Jq] = Liftable[Jq] { | ||
| case Jq.Root => q"_root_.fs2.data.json.jq.Jq.Root" | ||
| case Jq.Identity => q"_root_.fs2.data.json.jq.Jq.Identity" | ||
| case Jq.Field(name) => q"_root_.fs2.data.json.jq.Jq.Field($name)" | ||
| case Jq.Index(idx) => q"_root_.fs2.data.json.jq.Jq.Index($idx)" | ||
| case Jq.Slice(idx1, idx2) => q"_root_.fs2.data.json.jq.Jq.Slice($idx1, $idx2)" | ||
| case Jq.Child => q"_root_.fs2.data.json.jq.Jq.Child" | ||
| case Jq.RecursiveDescent => q"_root_.fs2.data.json.jq.Jq.RecursiveDescent" | ||
| case Jq.Sequence(qs) => | ||
| q"_root_.fs2.data.json.jq.Jq.Sequence(_root_.cats.data.NonEmptyChain.fromNonEmptyList(${qs.toNonEmptyList.widen[Jq]}))" | ||
| case Jq.Iterator(filter, inner) => q"_root_.fs2.data.json.jq.Jq.Iterator(${filter: Jq}, $inner)" | ||
| case Jq.Arr(pfx, qs) => q"_root_.fs2.data.json.jq.Jq.Arr(${pfx: Jq}, $qs)" | ||
| case Jq.Obj(pfx, qs) => q"_root_.fs2.data.json.jq.Jq.Obj(${pfx: Jq}, $qs)" | ||
| case Jq.Num(n) => q"_root_.fs2.data.json.jq.Jq.Num($n)" | ||
| case Jq.Str(s) => q"_root_.fs2.data.json.jq.Jq.Str($s)" | ||
| case Jq.Bool(b) => q"_root_.fs2.data.json.jq.Jq.Bool($b)" | ||
| case Jq.Null => q"_root_.fs2.data.json.jq.Jq.Null" | ||
| } | ||
| } | ||
|
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| object JqInterpolator extends Literally[Jq] { | ||
|
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| def validate(ctx: Context)(string: String): Either[String, ctx.Expr[Jq]] = { | ||
| import ctx.universe._ | ||
| val liftables = new LiftableImpls { | ||
| val c: ctx.type = ctx | ||
| } | ||
| import liftables._ | ||
| JqParser | ||
| .either(string) | ||
| .leftMap(_.getMessage) | ||
| .map(p => c.Expr(q"$p")) | ||
| } | ||
|
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| def make(c: Context)(args: c.Expr[Any]*): c.Expr[Jq] = apply(c)(args: _*) | ||
|
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| } | ||
| } |
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