Merge pull request #325 from ucb-bar/execute-harness-plan-3

Implement a standardized execution scheme for chisel

1 files changed, 34 insertions, 0 deletions

diff --git a/src/main/scala/chisel3/ChiselExecutionOptions.scala b/src/main/scala/chisel3/ChiselExecutionOptions.scala
new file mode 100644
index 00000000..6f58153f
--- /dev/null
+++ b/src/main/scala/chisel3/ChiselExecutionOptions.scala
@@ -0,0 +1,34 @@
+// See LICENSE for license details.
+
+package chisel3
+
+import firrtl.{ExecutionOptionsManager, ComposableOptions}
+
+//TODO: provide support for running firrtl as separate process, could alternatively be controlled by external driver
+//TODO: provide option for not saving chirrtl file, instead calling firrtl with in memory chirrtl
+/**
+  * Options that are specific to chisel.
+  *
+  * @param runFirrtlCompiler when true just run chisel, when false run chisel then compile its output with firrtl
+  * @note this extends FirrtlExecutionOptions which extends CommonOptions providing easy access to down chain options
+  */
+case class ChiselExecutionOptions(
+                                   runFirrtlCompiler: Boolean = true
+                                   // var runFirrtlAsProcess: Boolean = false
+                                 ) extends ComposableOptions
+
+trait HasChiselExecutionOptions {
+  self: ExecutionOptionsManager =>
+
+  var chiselOptions = ChiselExecutionOptions()
+
+  parser.note("chisel3 options")
+
+  parser.opt[Unit]("no-run-firrtl")
+    .abbr("chnrf")
+    .foreach { _ =>
+      chiselOptions = chiselOptions.copy(runFirrtlCompiler = false)
+    }
+    .text("Stop after chisel emits chirrtl file")
+}
+