Add support for parameterized BlackBoxes

Also restrict black boxes to not allow hardware inside of them since it was
being silently dropped anyway.

Resolves #289

1 files changed, 25 insertions, 0 deletions

diff --git a/src/test/resources/BlackBoxTest.v b/src/test/resources/BlackBoxTest.v
index 910b09ff..edf321a8 100644
--- a/src/test/resources/BlackBoxTest.v
+++ b/src/test/resources/BlackBoxTest.v
@@ -32,3 +32,28 @@ module BlackBoxConstant #(
 );
   assign out = VALUE;
 endmodule
+
+module BlackBoxStringParam #(
+  parameter string STRING = "zero"
+) (
+  output [31:0] out
+);
+  assign out = (STRING == "one" )? 1 :
+               (STRING == "two" )? 2 : 0;
+endmodule
+
+module BlackBoxRealParam #(
+  parameter real REAL = 0.0
+) (
+  output [63:0] out
+);
+  assign out = $realtobits(REAL);
+endmodule
+
+module BlackBoxTypeParam #(
+  parameter type T = bit
+) (
+  output T out
+);
+  assign out = 32'hdeadbeef;
+endmodule