Add ability to suppress enum cast warnings (#2671) (#2674)

(cherry picked from commit 1ad820f7f549eddcd7188b737f59a240e48a7f0a)

Co-authored-by: Zachary Yedidia <zyedidia@gmail.com>

1 files changed, 4 insertions, 0 deletions

diff --git a/core/src/main/scala/chisel3/internal/Builder.scala b/core/src/main/scala/chisel3/internal/Builder.scala
index 25f4c44c..b2c98309 100644
--- a/core/src/main/scala/chisel3/internal/Builder.scala
+++ b/core/src/main/scala/chisel3/internal/Builder.scala
@@ -435,6 +435,7 @@ private[chisel3] class DynamicContext(
   var currentReset:         Option[Reset] = None
   val errors = new ErrorLog
   val namingStack = new NamingStack
+
   // Used to indicate if this is the top-level module of full elaboration, or from a Definition
   var inDefinition: Boolean = false
 }
@@ -451,6 +452,9 @@ private[chisel3] object Builder extends LazyLogging {
     dynamicContextVar.value.get
   }
 
+  // Used to suppress warnings when casting from a UInt to an Enum
+  var suppressEnumCastWarning: Boolean = false
+
   // Returns the current dynamic context
   def captureContext(): DynamicContext = dynamicContext
   // Sets the current dynamic contents