From 598f940f0b35f4f51f799c99d5b306235461495e Mon Sep 17 00:00:00 2001
From: Yann Simon <yann.simon@commercetools.de>
Date: Wed, 20 Mar 2019 11:41:38 +0100
Subject: [PATCH] remove 'collection.breakOut'

The performances stay similar
---
 benchmarks/src/main/scala/json/ToJsonBenchmark.scala | 10 +++++-----
 json/src/main/scala/io/sphere/json/ToJSON.scala      | 11 ++++++-----
 util/src/main/scala/Reflect.scala                    |  3 ++-
 3 files changed, 13 insertions(+), 11 deletions(-)

diff --git a/benchmarks/src/main/scala/json/ToJsonBenchmark.scala b/benchmarks/src/main/scala/json/ToJsonBenchmark.scala
index f7ce764c..78ae2d9e 100644
--- a/benchmarks/src/main/scala/json/ToJsonBenchmark.scala
+++ b/benchmarks/src/main/scala/json/ToJsonBenchmark.scala
@@ -19,11 +19,11 @@ class ToJsonBenchmark {
   /* on local mac
   jmh:run
 
-Benchmark                                      Mode  Cnt   Score   Error  Units
-ToJsonBenchmark.listWriter                    thrpt   10  70,065 ± 0,967  ops/s
-ToJsonBenchmark.seqWriter                     thrpt   10  63,512 ± 3,889  ops/s
-ToJsonBenchmark.serializeCaseClassToString    thrpt   10  37,925 ± 2,252  ops/s
-ToJsonBenchmark.vectorWriter                  thrpt   10  63,762 ± 1,470  ops/s
+Benchmark                                    Mode  Cnt   Score   Error  Units
+ToJsonBenchmark.listWriter                  thrpt   10  68,770 ± 1,157  ops/s
+ToJsonBenchmark.seqWriter                   thrpt   10  65,792 ± 1,191  ops/s
+ToJsonBenchmark.serializeCaseClassToString  thrpt   10  39,142 ± 0,574  ops/s
+ToJsonBenchmark.vectorWriter                thrpt   10  64,359 ± 2,162  ops/s
    */
 
   @Benchmark
diff --git a/json/src/main/scala/io/sphere/json/ToJSON.scala b/json/src/main/scala/io/sphere/json/ToJSON.scala
index 870f415e..3257f5bb 100644
--- a/json/src/main/scala/io/sphere/json/ToJSON.scala
+++ b/json/src/main/scala/io/sphere/json/ToJSON.scala
@@ -2,7 +2,6 @@ package io.sphere.json
 
 import cats.data.NonEmptyList
 
-import scala.collection.breakOut
 import java.util.{Currency, Locale, UUID}
 
 import io.sphere.util.{BaseMoney, HighPrecisionMoney, Money}
@@ -44,15 +43,17 @@ object ToJSON {
   }
 
   implicit def seqWriter[@specialized A](implicit w: ToJSON[A]): ToJSON[Seq[A]] = new ToJSON[Seq[A]] {
-    def write(s: Seq[A]): JValue = JArray(s.map(w.write)(breakOut))
+    def write(s: Seq[A]): JValue = JArray(s.iterator.map(w.write).toList)
   }
 
   implicit def setWriter[@specialized A](implicit w: ToJSON[A]): ToJSON[Set[A]] = new ToJSON[Set[A]] {
-    def write(s: Set[A]): JValue = JArray(s.map(w.write)(breakOut))
+    def write(s: Set[A]): JValue = JArray(s.iterator.map(w.write).toList)
   }
 
   implicit def vectorWriter[@specialized A](implicit w: ToJSON[A]): ToJSON[Vector[A]] = new ToJSON[Vector[A]] {
-    def write(v: Vector[A]): JValue = JArray(v.map(w.write)(breakOut))
+    def write(v: Vector[A]): JValue = {
+      JArray(v.iterator.map(w.write).toList)
+    }
   }
 
   implicit val intWriter: ToJSON[Int] = new ToJSON[Int] {
@@ -88,7 +89,7 @@ object ToJSON {
   }
 
   implicit def mapWriter[A: ToJSON]: ToJSON[Map[String, A]] = new ToJSON[Map[String, A]] {
-    def write(m: Map[String, A]) = JObject(m.map { case (k, v) => JField(k, toJValue(v)) }(breakOut): _*)
+    def write(m: Map[String, A]) = JObject(m.iterator.map { case (k, v) => JField(k, toJValue(v)) }.toList)
   }
 
   implicit val moneyWriter: ToJSON[Money] = new ToJSON[Money] {
diff --git a/util/src/main/scala/Reflect.scala b/util/src/main/scala/Reflect.scala
index e562fb68..9b01aa06 100644
--- a/util/src/main/scala/Reflect.scala
+++ b/util/src/main/scala/Reflect.scala
@@ -43,6 +43,7 @@ object Reflect extends Logging {
       }
 
       sym.children
+        .iterator
         .collect { case m: MethodSymbol if m.isCaseAccessor && !m.isPrivate => m }
         .zipWithIndex
         .map { case (ms, idx) =>
@@ -52,7 +53,7 @@ object Reflect extends Logging {
             case _: NoSuchMethodException => None
           }
           CaseClassFieldMeta(ms.name, defaultValue)
-        }(collection.breakOut)
+        }.toIndexedSeq
     }
   }
 }