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-rw-r--r--core/src/main/scala/chisel3/experimental/hierarchy/Hierarchy.scala3
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)
}