1 files changed, 29 insertions, 0 deletions
diff --git a/src/main/scala/firrtl/passes/memlib/CreateMemoryAnnotations.scala b/src/main/scala/firrtl/passes/memlib/CreateMemoryAnnotations.scala
new file mode 100644
index 00000000..ce7eea5e
--- /dev/null
+++ b/src/main/scala/firrtl/passes/memlib/CreateMemoryAnnotations.scala
@@ -0,0 +1,29 @@
+// SPDX-License-Identifier: Apache-2.0
+
+package firrtl
+package passes
+package memlib
+
+import firrtl.stage.Forms
+
+@deprecated("CreateMemoryAnnotations will not take reader: Option[YamlFileReader] as argument since 1.5.", "FIRRTL 1.4")
+class CreateMemoryAnnotations(reader: Option[YamlFileReader]) extends Transform with DependencyAPIMigration {
+
+  override def prerequisites = Forms.MidForm
+  override def optionalPrerequisites = Seq.empty
+  override def optionalPrerequisiteOf = Forms.MidEmitters
+  override def invalidates(a: Transform) = false
+
+  def execute(state: CircuitState): CircuitState = reader match {
+    case None => state
+    case Some(r) =>
+      import CustomYAMLProtocol._
+      val configs = r.parse[Config]
+      val oldAnnos = state.annotations
+      val (as, pins) = configs.foldLeft((oldAnnos, Seq.empty[String])) {
+        case ((annos, pins), config) =>
+          (annos, pins :+ config.pin.name)
+      }
+      state.copy(annotations = PinAnnotation(pins.toSeq) +: as)
+  }
+}