Merge pull request #976 from seldridge/none-compiler-form

Fix NoneCompiler outputForm

1 files changed, 17 insertions, 0 deletions

diff --git a/src/main/scala/firrtl/transforms/IdentityTransform.scala b/src/main/scala/firrtl/transforms/IdentityTransform.scala
new file mode 100644
index 00000000..a39ca4b7
--- /dev/null
+++ b/src/main/scala/firrtl/transforms/IdentityTransform.scala
@@ -0,0 +1,17 @@
+// See LICENSE for license details.
+
+package firrtl.transforms
+
+import firrtl.{CircuitForm, CircuitState, Transform}
+
+/** Transform that applies an identity function. This returns an unmodified [[CircuitState]].
+  * @param form the input and output [[CircuitForm]]
+  */
+class IdentityTransform(form: CircuitForm) extends Transform {
+
+  final override def inputForm: CircuitForm = form
+  final override def outputForm: CircuitForm = form
+
+  final def execute(state: CircuitState): CircuitState = state
+
+}