chore: Remove unused attributes in Stages.

Author: He-Pin

stream/src/main/mima-filters/1.0.x.backwards.excludes/pr-991-remove-unused-attributes.backwards.excludes

@@ -0,0 +1,26 @@
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you 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.
+
+# Remove unused attributes in Stages.
+ProblemFilters.exclude[DirectMissingMethodProblem]("org.apache.pekko.stream.impl.Stages#DefaultAttributes.fused")
+ProblemFilters.exclude[DirectMissingMethodProblem]("org.apache.pekko.stream.impl.Stages#DefaultAttributes.materializedValueSource")
+ProblemFilters.exclude[DirectMissingMethodProblem]("org.apache.pekko.stream.impl.Stages#DefaultAttributes.concatAll")
+ProblemFilters.exclude[DirectMissingMethodProblem]("org.apache.pekko.stream.impl.Stages#DefaultAttributes.processorWithKey")
+ProblemFilters.exclude[DirectMissingMethodProblem]("org.apache.pekko.stream.impl.Stages#DefaultAttributes.concatSource")
+ProblemFilters.exclude[DirectMissingMethodProblem]("org.apache.pekko.stream.impl.Stages#DefaultAttributes.concatMatSource")
+ProblemFilters.exclude[DirectMissingMethodProblem]("org.apache.pekko.stream.impl.Stages#DefaultAttributes.actorPublisherSource")
+ProblemFilters.exclude[DirectMissingMethodProblem]("org.apache.pekko.stream.impl.Stages#DefaultAttributes.actorSubscriberSink")

stream/src/main/scala/org/apache/pekko/stream/impl/Stages.scala

@@ -29,8 +29,6 @@ import pekko.stream.Attributes._
     val inputBufferOne = inputBuffer(initial = 1, max = 1)
 
     // stage specific default attributes
-    val fused = name("fused")
-    val materializedValueSource = name("matValueSource")
     val map = name("map")
     val contramap = name("contramap")
     val dimap = name("dimap")
@@ -79,9 +77,7 @@ import pekko.stream.Attributes._
     val prefixAndTail = name("prefixAndTail")
     val flatMapPrefix = name("flatMapPrefix")
     val split = name("split")
-    val concatAll = name("concatAll")
     val processor = name("processor")
-    val processorWithKey = name("processorWithKey")
     val identityOp = name("identityOp")
     val delimiterFraming = name("delimiterFraming")
 
@@ -131,10 +127,7 @@ import pekko.stream.Attributes._
     val maybeSource = name("MaybeSource")
     val neverSource = name("neverSource")
     val failedSource = name("failedSource")
-    val concatSource = name("concatSource")
-    val concatMatSource = name("concatMatSource")
     val subscriberSource = name("subscriberSource")
-    val actorPublisherSource = name("actorPublisherSource")
     val actorRefSource = name("actorRefSource")
     val actorRefWithBackpressureSource = name("actorRefWithBackpressureSource")
     val queueSource = name("queueSource")
@@ -161,7 +154,6 @@ import pekko.stream.Attributes._
     val neverSink = name("neverSink")
     val actorRefSink = name("actorRefSink")
     val actorRefWithBackpressureSink = name("actorRefWithBackpressureSink")
-    val actorSubscriberSink = name("actorSubscriberSink")
     val queueSink = name("queueSink")
     val lazySink = name("lazySink")
     val lazyFlow = name("lazyFlow")