Allow escaped single quotes in RawParams (#820)

Escape raw params using \'

1 files changed, 27 insertions, 0 deletions

diff --git a/src/test/scala/firrtlTests/ExtModuleTests.scala b/src/test/scala/firrtlTests/ExtModuleTests.scala
new file mode 100644
index 00000000..89c13b5e
--- /dev/null
+++ b/src/test/scala/firrtlTests/ExtModuleTests.scala
@@ -0,0 +1,27 @@
+// See LICENSE for license details.
+
+package firrtlTests
+
+import org.scalatest.Matchers
+import firrtl._
+
+class ExtModuleTests extends FirrtlFlatSpec {
+  "extmodule" should "serialize and re-parse equivalently" in {
+    val input =
+      """circuit Top :
+        |  extmodule Top :
+        |    input y : UInt<0>
+        |    output x : UInt<1>
+        |
+        |    defname = ParameterizedExtModule
+        |    parameter VALUE = 1
+        |    parameter VALUE2 = '2\'d2'
+        |    parameter STRING = "one"
+        |    parameter REAL = -1.7
+        |    parameter TYP = 'bit'
+        |    """.stripMargin
+    val parsed = parse(input)
+    (parse(parsed.serialize)) should be (parsed)
+  }
+}
+