prepare Scala 2.13

- Traversable deprecated since Scala 2.13. use Iterable. rename some methods and classes
- add AsyncResultSetIterator. for the same reason scalikejdbc/scalikejdbc@e417858#diff-846b86f70457179f4e5d7527ce269b6e
- deprecate AsyncResultSetTraversable

Author: xuwei-k

core/src/main/scala/scalikejdbc/async/AsyncDBSession.scala

@@ -0,0 +1,33 @@
+/*
+ * Copyright 2013 Kazuhiro Sera
+ *
+ * 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 scalikejdbc.async
+
+import scalikejdbc._
+
+/**
+ * AsyncResultSet Iterator
+ */
+class AsyncResultSetIterator(var rs: AsyncResultSet) extends Iterator[WrappedResultSet] {
+
+  override def hasNext: Boolean = rs.next()
+
+  override def next: WrappedResultSet = {
+    val value = rs
+    rs = rs.tail()
+    value
+  }
+
+}

core/src/main/scala/scalikejdbc/async/AsyncRelationalSQLs.scala

@@ -20,6 +20,7 @@ import scalikejdbc._
 /**
  * AsyncResultSet Traversable
  */
+@deprecated("will be removed. use AsyncResultSetIterator", "0.12.0")
 class AsyncResultSetTraversable(var rs: AsyncResultSet) extends Traversable[WrappedResultSet] {
 
   def foreach[U](f: (WrappedResultSet) => U): Unit = while (rs.next()) {

core/src/main/scala/scalikejdbc/async/AsyncResultSetIterator.scala

@@ -53,13 +53,13 @@ trait AsyncSQLToOption[A] extends Any {
 }
 class AsyncSQLToOptionImpl[A](val underlying: SQLToOption[A, HasExtractor]) extends AnyVal with AsyncSQLToOption[A]
 
-trait AsyncSQLToTraversable[A] extends Any {
-  def underlying: SQLToTraversable[A, HasExtractor]
-  def future()(implicit session: AsyncDBSession, cxt: EC = ECGlobal): Future[Traversable[A]] = {
-    session.traversable(underlying.statement, underlying.rawParameters: _*)(underlying.extractor)
+trait AsyncSQLToIterable[A] extends Any {
+  def underlying: SQLToIterable[A, HasExtractor]
+  def future()(implicit session: AsyncDBSession, cxt: EC = ECGlobal): Future[Iterable[A]] = {
+    session.iterable(underlying.statement, underlying.rawParameters: _*)(underlying.extractor)
   }
 }
-class AsyncSQLToTraversableImpl[A](val underlying: SQLToTraversable[A, HasExtractor]) extends AnyVal with AsyncSQLToTraversable[A]
+class AsyncSQLToIterableImpl[A](val underlying: SQLToIterable[A, HasExtractor]) extends AnyVal with AsyncSQLToIterable[A]
 
 trait AsyncSQLToList[A] extends Any {
   def underlying: SQLToList[A, HasExtractor]

core/src/main/scala/scalikejdbc/async/AsyncResultSetTraversable.scala

@@ -22,9 +22,9 @@ import scalikejdbc.async.ShortenedNames._
  */
 object FutureImplicits {
 
-  implicit def fromSQLToTraversableFuture[A](sql: SQL[A, HasExtractor])(
+  implicit def fromSQLToIterableFuture[A](sql: SQL[A, HasExtractor])(
     implicit
-    session: AsyncDBSession, cxt: EC = EC.Implicits.global): Future[Traversable[A]] = sql.traversable.future
+    session: AsyncDBSession, cxt: EC = EC.Implicits.global): Future[Iterable[A]] = sql.iterable.future
 
   implicit def fromSQLToListFuture[A](sql: SQL[A, HasExtractor])(
     implicit

core/src/main/scala/scalikejdbc/async/AsyncSQLs.scala

@@ -70,44 +70,44 @@ package object async {
   }
 
   // --------------
-  // one-to-x -> Traversable
+  // one-to-x -> Iterable
   // --------------
 
-  implicit def makeSQLToTraversableAsync[A, B1, B2, B3, B4, B5, Z](sql: SQLToTraversable[A, HasExtractor]): AsyncSQLToTraversable[A] = {
-    new AsyncSQLToTraversableImpl[A](sql)
+  implicit def makeSQLToIterableAsync[A, B1, B2, B3, B4, B5, Z](sql: SQLToIterable[A, HasExtractor]): AsyncSQLToIterable[A] = {
+    new AsyncSQLToIterableImpl[A](sql)
   }
-  implicit def makeSQLToTraversableAsync[A, B1, B2, B3, B4, B5, Z](sql: SQLToTraversableImpl[A, HasExtractor]): AsyncSQLToTraversable[A] = {
-    new AsyncSQLToTraversableImpl[A](sql)
+  implicit def makeSQLToIterableAsync[A, B1, B2, B3, B4, B5, Z](sql: SQLToIterableImpl[A, HasExtractor]): AsyncSQLToIterable[A] = {
+    new AsyncSQLToIterableImpl[A](sql)
   }
-  implicit def makeOneToOneSQLToTraversableAsync[A, B, Z](sql: OneToOneSQLToTraversable[A, B, HasExtractor, Z]): AsyncOneToOneSQLToTraversable[A, B, Z] = {
-    new AsyncOneToOneSQLToTraversable[A, B, Z](sql)
+  implicit def makeOneToOneSQLToIterableAsync[A, B, Z](sql: OneToOneSQLToIterable[A, B, HasExtractor, Z]): AsyncOneToOneSQLToIterable[A, B, Z] = {
+    new AsyncOneToOneSQLToIterable[A, B, Z](sql)
   }
-  implicit def makeOneToManySQLToTraversableAsync[A, B, Z](sql: OneToManySQLToTraversable[A, B, HasExtractor, Z]): AsyncOneToManySQLToTraversable[A, B, Z] = {
-    new AsyncOneToManySQLToTraversable[A, B, Z](sql)
+  implicit def makeOneToManySQLToIterableAsync[A, B, Z](sql: OneToManySQLToIterable[A, B, HasExtractor, Z]): AsyncOneToManySQLToIterable[A, B, Z] = {
+    new AsyncOneToManySQLToIterable[A, B, Z](sql)
   }
-  implicit def makeOneToManies2SQLToTraversableAsync[A, B1, B2, Z](sql: OneToManies2SQLToTraversable[A, B1, B2, HasExtractor, Z]): AsyncOneToManies2SQLToTraversable[A, B1, B2, Z] = {
-    new AsyncOneToManies2SQLToTraversable[A, B1, B2, Z](sql)
+  implicit def makeOneToManies2SQLToIterableAsync[A, B1, B2, Z](sql: OneToManies2SQLToIterable[A, B1, B2, HasExtractor, Z]): AsyncOneToManies2SQLToIterable[A, B1, B2, Z] = {
+    new AsyncOneToManies2SQLToIterable[A, B1, B2, Z](sql)
   }
-  implicit def makeOneToManies3SQLToTraversableAsync[A, B1, B2, B3, Z](sql: OneToManies3SQLToTraversable[A, B1, B2, B3, HasExtractor, Z]): AsyncOneToManies3SQLToTraversable[A, B1, B2, B3, Z] = {
-    new AsyncOneToManies3SQLToTraversable[A, B1, B2, B3, Z](sql)
+  implicit def makeOneToManies3SQLToIterableAsync[A, B1, B2, B3, Z](sql: OneToManies3SQLToIterable[A, B1, B2, B3, HasExtractor, Z]): AsyncOneToManies3SQLToIterable[A, B1, B2, B3, Z] = {
+    new AsyncOneToManies3SQLToIterable[A, B1, B2, B3, Z](sql)
   }
-  implicit def makeOneToManies4SQLToTraversableAsync[A, B1, B2, B3, B4, Z](sql: OneToManies4SQLToTraversable[A, B1, B2, B3, B4, HasExtractor, Z]): AsyncOneToManies4SQLToTraversable[A, B1, B2, B3, B4, Z] = {
-    new AsyncOneToManies4SQLToTraversable[A, B1, B2, B3, B4, Z](sql)
+  implicit def makeOneToManies4SQLToIterableAsync[A, B1, B2, B3, B4, Z](sql: OneToManies4SQLToIterable[A, B1, B2, B3, B4, HasExtractor, Z]): AsyncOneToManies4SQLToIterable[A, B1, B2, B3, B4, Z] = {
+    new AsyncOneToManies4SQLToIterable[A, B1, B2, B3, B4, Z](sql)
   }
-  implicit def makeOneToManies5SQLToTraversableAsync[A, B1, B2, B3, B4, B5, Z](sql: OneToManies5SQLToTraversable[A, B1, B2, B3, B4, B5, HasExtractor, Z]): AsyncOneToManies5SQLToTraversable[A, B1, B2, B3, B4, B5, Z] = {
-    new AsyncOneToManies5SQLToTraversable[A, B1, B2, B3, B4, B5, Z](sql)
+  implicit def makeOneToManies5SQLToIterableAsync[A, B1, B2, B3, B4, B5, Z](sql: OneToManies5SQLToIterable[A, B1, B2, B3, B4, B5, HasExtractor, Z]): AsyncOneToManies5SQLToIterable[A, B1, B2, B3, B4, B5, Z] = {
+    new AsyncOneToManies5SQLToIterable[A, B1, B2, B3, B4, B5, Z](sql)
   }
-  implicit def makeOneToManies6SQLToTraversableAsync[A, B1, B2, B3, B4, B5, B6, Z](sql: OneToManies6SQLToTraversable[A, B1, B2, B3, B4, B5, B6, HasExtractor, Z]): AsyncOneToManies6SQLToTraversable[A, B1, B2, B3, B4, B5, B6, Z] = {
-    new AsyncOneToManies6SQLToTraversable[A, B1, B2, B3, B4, B5, B6, Z](sql)
+  implicit def makeOneToManies6SQLToIterableAsync[A, B1, B2, B3, B4, B5, B6, Z](sql: OneToManies6SQLToIterable[A, B1, B2, B3, B4, B5, B6, HasExtractor, Z]): AsyncOneToManies6SQLToIterable[A, B1, B2, B3, B4, B5, B6, Z] = {
+    new AsyncOneToManies6SQLToIterable[A, B1, B2, B3, B4, B5, B6, Z](sql)
   }
-  implicit def makeOneToManies7SQLToTraversableAsync[A, B1, B2, B3, B4, B5, B6, B7, Z](sql: OneToManies7SQLToTraversable[A, B1, B2, B3, B4, B5, B6, B7, HasExtractor, Z]): AsyncOneToManies7SQLToTraversable[A, B1, B2, B3, B4, B5, B6, B7, Z] = {
-    new AsyncOneToManies7SQLToTraversable[A, B1, B2, B3, B4, B5, B6, B7, Z](sql)
+  implicit def makeOneToManies7SQLToIterableAsync[A, B1, B2, B3, B4, B5, B6, B7, Z](sql: OneToManies7SQLToIterable[A, B1, B2, B3, B4, B5, B6, B7, HasExtractor, Z]): AsyncOneToManies7SQLToIterable[A, B1, B2, B3, B4, B5, B6, B7, Z] = {
+    new AsyncOneToManies7SQLToIterable[A, B1, B2, B3, B4, B5, B6, B7, Z](sql)
   }
-  implicit def makeOneToManies8SQLToTraversableAsync[A, B1, B2, B3, B4, B5, B6, B7, B8, Z](sql: OneToManies8SQLToTraversable[A, B1, B2, B3, B4, B5, B6, B7, B8, HasExtractor, Z]): AsyncOneToManies8SQLToTraversable[A, B1, B2, B3, B4, B5, B6, B7, B8, Z] = {
-    new AsyncOneToManies8SQLToTraversable[A, B1, B2, B3, B4, B5, B6, B7, B8, Z](sql)
+  implicit def makeOneToManies8SQLToIterableAsync[A, B1, B2, B3, B4, B5, B6, B7, B8, Z](sql: OneToManies8SQLToIterable[A, B1, B2, B3, B4, B5, B6, B7, B8, HasExtractor, Z]): AsyncOneToManies8SQLToIterable[A, B1, B2, B3, B4, B5, B6, B7, B8, Z] = {
+    new AsyncOneToManies8SQLToIterable[A, B1, B2, B3, B4, B5, B6, B7, B8, Z](sql)
   }
-  implicit def makeOneToManies9SQLToTraversableAsync[A, B1, B2, B3, B4, B5, B6, B7, B8, B9, Z](sql: OneToManies9SQLToTraversable[A, B1, B2, B3, B4, B5, B6, B7, B8, B9, HasExtractor, Z]): AsyncOneToManies9SQLToTraversable[A, B1, B2, B3, B4, B5, B6, B7, B8, B9, Z] = {
-    new AsyncOneToManies9SQLToTraversable[A, B1, B2, B3, B4, B5, B6, B7, B8, B9, Z](sql)
+  implicit def makeOneToManies9SQLToIterableAsync[A, B1, B2, B3, B4, B5, B6, B7, B8, B9, Z](sql: OneToManies9SQLToIterable[A, B1, B2, B3, B4, B5, B6, B7, B8, B9, HasExtractor, Z]): AsyncOneToManies9SQLToIterable[A, B1, B2, B3, B4, B5, B6, B7, B8, B9, Z] = {
+    new AsyncOneToManies9SQLToIterable[A, B1, B2, B3, B4, B5, B6, B7, B8, B9, Z](sql)
   }
 
   // --------------

core/src/main/scala/scalikejdbc/async/FutureImplicits.scala

@@ -31,13 +31,13 @@ class MySQLSampleSpec extends FlatSpec with Matchers with DBSettings with Loggin
     result.isDefined should be(true)
   }
 
-  it should "select values as a Traversable" in {
-    val resultsFuture: Future[Traversable[AsyncLover]] = NamedAsyncDB('mysql).withPool { implicit s =>
+  it should "select values as a Iterable" in {
+    val resultsFuture: Future[Iterable[AsyncLover]] = NamedAsyncDB('mysql).withPool { implicit s =>
       withSQL {
         select.from(AsyncLover as al)
           .where.isNotNull(al.birthday) // mysql-async 0.2.4 cannot parse nullable date value.
           .limit(2)
-      }.map(AsyncLover(al)).traversable.future()
+      }.map(AsyncLover(al)).iterable.future()
     }
     val results = Await.result(resultsFuture, 5.seconds)
     results.size should equal(2)

core/src/main/scala/scalikejdbc/async/package.scala

@@ -30,9 +30,9 @@ class PostgreSQLSampleSpec extends FlatSpec with Matchers with DBSettings with L
     result.isDefined should be(true)
   }
 
-  it should "select values as a Traversable" in {
-    val resultsFuture: Future[Traversable[AsyncLover]] = AsyncDB.withPool { implicit s =>
-      withSQL { select.from(AsyncLover as al).limit(2) }.map(AsyncLover(al)).traversable.future()
+  it should "select values as a Iterable" in {
+    val resultsFuture: Future[Iterable[AsyncLover]] = AsyncDB.withPool { implicit s =>
+      withSQL { select.from(AsyncLover as al).limit(2) }.map(AsyncLover(al)).iterable.future()
     }
     Await.result(resultsFuture, 5.seconds)
     val results = resultsFuture.value.get.get