From cb48b4dee02abe2080b665b26db9fc2e0c865d4c Mon Sep 17 00:00:00 2001
From: Angie
Date: Wed, 22 Feb 2017 17:44:52 -0800
Subject: added more helpers

---
 src/main/scala/firrtl/Namespace.scala              | 12 ++++++------
 src/main/scala/firrtl/passes/memlib/MemUtils.scala |  5 +++++
 2 files changed, 11 insertions(+), 6 deletions(-)

(limited to 'src')

diff --git a/src/main/scala/firrtl/Namespace.scala b/src/main/scala/firrtl/Namespace.scala
index 798458c4..b3629211 100644
--- a/src/main/scala/firrtl/Namespace.scala
+++ b/src/main/scala/firrtl/Namespace.scala
@@ -14,13 +14,13 @@ class Namespace private {
   private var n = 0L
 
   def tryName(value: String): Boolean = {
-    if (!namespace.contains(value)) {
-      namespace += value
-      true
-    } else {
-      false
-    }
+    val unused = !contains(value)
+    if (unused) namespace += value
+    unused
   }
+
+  def contains(value: String): Boolean = namespace.contains(value)
+
   def newName(value: String): String = {
     var str = value
     while (!tryName(str)) {
diff --git a/src/main/scala/firrtl/passes/memlib/MemUtils.scala b/src/main/scala/firrtl/passes/memlib/MemUtils.scala
index 0962015e..75378824 100644
--- a/src/main/scala/firrtl/passes/memlib/MemUtils.scala
+++ b/src/main/scala/firrtl/passes/memlib/MemUtils.scala
@@ -94,6 +94,7 @@ object castRhs {
     lhst match {
       case _: SIntType => DoPrim(AsSInt, Seq(rhs), Seq.empty, lhst)
       case FixedType(_, IntWidth(p)) => DoPrim(AsFixedPoint, Seq(rhs), Seq(p), lhst)
+      case _: ClockType => DoPrim(AsClock, Seq(rhs), Seq.empty, lhst)
       case _: UIntType => rhs
     }  
   }
@@ -154,6 +155,10 @@ object createSubField {
   def apply(exp: Expression, n: String) = WSubField(exp, n, field_type(exp.tpe, n), UNKNOWNGENDER)
 }
 
+object createInstance {
+  def apply(name: String, module: String) = WDefInstance(NoInfo, name, module, UnknownType)
+}
+
 object connectFields {
   def apply(lref: Expression, lname: String, rref: Expression, rname: String): Connect =
     Connect(NoInfo, createSubField(lref, lname), createSubField(rref, rname))
-- 
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