From 0ba4d6008b7d80b87a7507d55fe228ff947e0121 Mon Sep 17 00:00:00 2001
From: Andrew Waterman
Date: Mon, 27 Jul 2015 12:59:35 -0700
Subject: Use exceptions, not -1, to signal errors

---
 src/main/scala/Chisel/Core.scala | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'src')

diff --git a/src/main/scala/Chisel/Core.scala b/src/main/scala/Chisel/Core.scala
index 94f97468..b1bcf63e 100644
--- a/src/main/scala/Chisel/Core.scala
+++ b/src/main/scala/Chisel/Core.scala
@@ -333,7 +333,7 @@ abstract class Data(dirArg: Direction) extends Id {
   def name = getRefForId(cid).name
   def debugName = mod.debugName + "." + getRefForId(cid).debugName
   def litArg(): LitArg = null
-  def litValue(): BigInt = -1
+  def litValue(): BigInt = None.get
   def isLitValue(): Boolean = false
   def setLitValue(x: LitArg) {  }
   def floLitValue: Float = intBitsToFloat(litValue().toInt)
@@ -578,7 +578,7 @@ abstract class Bits(dirArg: Direction, width: Int) extends Element(dirArg, width
 
   override def litArg(): LitArg = litValueVar.get
   override def isLitValue(): Boolean = litValueVar.isDefined
-  override def litValue(): BigInt = if (isLitValue) litValueVar.get.num else -1
+  override def litValue(): BigInt = litValueVar.get.num
   override def setLitValue(x: LitArg) { litValueVar = Some(x) }
   override def cloneType : this.type = cloneTypeWidth(width)
   def fromInt(x: BigInt): this.type = makeLit(x, -1)
-- 
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