Add mapString method to ir.Port (#1655)

Signed-off-by: Schuyler Eldridge <schuyler.eldridge@ibm.com>

Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com>

2 files changed, 4 insertions, 0 deletions

diff --git a/src/main/scala/firrtl/Mappers.scala b/src/main/scala/firrtl/Mappers.scala
index b30b4518..3bf89885 100644
--- a/src/main/scala/firrtl/Mappers.scala
+++ b/src/main/scala/firrtl/Mappers.scala
@@ -14,6 +14,9 @@ object Mappers {
     implicit def forType(f: Type => Type): PortMagnet = new PortMagnet {
       override def map(port: Port): Port = port mapType f
     }
+    implicit def forString(f: String => String): PortMagnet = new PortMagnet {
+      override def map(port: Port): Port = port mapString f
+    }
   }
   implicit class PortMap(val _port: Port) extends AnyVal {
     def map[T](f: T => T)(implicit magnet: (T => T) => PortMagnet): Port = magnet(f).map(_port)
diff --git a/src/main/scala/firrtl/ir/IR.scala b/src/main/scala/firrtl/ir/IR.scala
index 64181642..af3709cd 100644
--- a/src/main/scala/firrtl/ir/IR.scala
+++ b/src/main/scala/firrtl/ir/IR.scala
@@ -846,6 +846,7 @@ case class Port(
     tpe: Type) extends FirrtlNode with IsDeclaration {
   def serialize: String = s"${direction.serialize} $name : ${tpe.serialize}" + info.serialize
   def mapType(f: Type => Type): Port = Port(info, name, direction, f(tpe))
+  def mapString(f: String => String): Port = Port(info, f(name), direction, tpe)
 }
 
 /** Parameters for external modules */