Implement a standardized execution scheme for chisel

Provide support for chisel options
Provide support for firrtl options when called as part of chisel compile
provide command line support the above options via scopt
provide and execution result class that can be used when chisel3 is part
of some externally controlled toolchain

2 files changed, 34 insertions, 0 deletions

diff --git a/src/test/scala/chiselTests/DriverSpec.scala b/src/test/scala/chiselTests/DriverSpec.scala
new file mode 100644
index 00000000..4f9619e3
--- /dev/null
+++ b/src/test/scala/chiselTests/DriverSpec.scala
@@ -0,0 +1,33 @@
+// See LICENSE for license details.
+
+package chiselTests
+
+import chisel3._
+
+import org.scalatest.{Matchers, FreeSpec}
+
+class DummyModule extends Module {
+  val io = IO(new Bundle {
+    val in = UInt(INPUT, 1)
+    val out = UInt(OUTPUT, 1)
+  })
+  io.out := io.in
+}
+
+class DriverSpec extends FreeSpec with Matchers {
+  "Driver's execute methods are used to run chisel and firrtl" - {
+    "options can be picked up from comand line with no args" in {
+      Driver.execute(Array.empty[String], () => new DummyModule)
+    }
+    "options can be picked up from comand line setting top name" in {
+      Driver.execute(Array("-tn", "dm", "-td", "local-build"), () => new DummyModule)
+    }
+    "execute returns a chisel execution result" in {
+      val args = Array("--compiler", "low")
+      val result = Driver.execute(Array.empty[String], () => new DummyModule)
+      result shouldBe a[ChiselExecutionSucccess]
+      val successResult = result.asInstanceOf[ChiselExecutionSucccess]
+      successResult.emitted should include ("circuit DummyModule")
+    }
+  }
+}
diff --git a/src/test/scala/chiselTests/Reg.scala b/src/test/scala/chiselTests/Reg.scala
index a9086223..90992c01 100644
--- a/src/test/scala/chiselTests/Reg.scala
+++ b/src/test/scala/chiselTests/Reg.scala
@@ -2,6 +2,7 @@
 
 package chiselTests
 
+import firrtl.ir.Input
 import org.scalatest._
 import chisel3._
 import chisel3.core.DataMirror