1 files changed, 20 insertions, 0 deletions
diff --git a/src/main/scala/Chisel/util/Enum.scala b/src/main/scala/Chisel/util/Enum.scala
new file mode 100644
index 00000000..3e2b038f
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+++ b/src/main/scala/Chisel/util/Enum.scala
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+// See LICENSE for license details.
+
+/** Enum generators, allowing circuit constants to have more meaningful names.
+  */
+
+package Chisel
+
+object Enum {
+  /** Returns a sequence of Bits subtypes with values from 0 until n. Helper method. */
+  private def createValues[T <: Bits](nodeType: T, n: Int): Seq[T] = (0 until n).map(x => nodeType.fromInt(x))
+
+  /** create n enum values of given type */
+  def apply[T <: Bits](nodeType: T, n: Int): List[T] = createValues(nodeType, n).toList
+
+  /** create enum values of given type and names */
+  def apply[T <: Bits](nodeType: T, l: Symbol *): Map[Symbol, T] = (l zip createValues(nodeType, l.length)).toMap
+
+  /** create enum values of given type and names */
+  def apply[T <: Bits](nodeType: T, l: List[Symbol]): Map[Symbol, T] = (l zip createValues(nodeType, l.length)).toMap
+}