Add a Select.ios that works with Definition/Instance, fix isA behavior (#2315)

* New Feature: Add a Select.ios that works with Definition/Instance
* BugFix: isA now truly ignores type parameters

1 files changed, 2 insertions, 1 deletions

diff --git a/core/src/main/scala/chisel3/experimental/hierarchy/Hierarchy.scala b/core/src/main/scala/chisel3/experimental/hierarchy/Hierarchy.scala
index 503e437b..4b8d3ccc 100644
--- a/core/src/main/scala/chisel3/experimental/hierarchy/Hierarchy.scala
+++ b/core/src/main/scala/chisel3/experimental/hierarchy/Hierarchy.scala
@@ -36,7 +36,8 @@ sealed trait Hierarchy[+A] {
     */
   def isA[B : TypeTag]: Boolean = {
     val tptag = implicitly[TypeTag[B]]
-    val name = tptag.tpe.toString
+    // drop any type information for the comparison, because the proto will not have that information.
+    val name = tptag.tpe.toString.takeWhile(_ != '[') 
     inBaseClasses(name)
   }