From 4de6848ef746ca40945dc95a113e820bc7265cea Mon Sep 17 00:00:00 2001
From: Jack Koenig
Date: Tue, 31 Jul 2018 15:43:54 -0700
Subject: Cleanup implicit conversions (#868)

---
 .../chiselTests/ImplicitConversionsSpec.scala      | 43 ++++++++++++++++++++++
 1 file changed, 43 insertions(+)
 create mode 100644 src/test/scala/chiselTests/ImplicitConversionsSpec.scala

(limited to 'src/test/scala/chiselTests')

diff --git a/src/test/scala/chiselTests/ImplicitConversionsSpec.scala b/src/test/scala/chiselTests/ImplicitConversionsSpec.scala
new file mode 100644
index 00000000..d5939b24
--- /dev/null
+++ b/src/test/scala/chiselTests/ImplicitConversionsSpec.scala
@@ -0,0 +1,43 @@
+// See LICENSE for license details.
+
+package chiselTests
+
+import chisel3._
+
+class ImplicitConversionsSpec extends ChiselFlatSpec {
+  ".data on arbitrary Data objects" should "not work" in {
+    assertTypeError("UInt(8.W).data")
+    assertTypeError("8.S.data")
+    assertTypeError("(new Bundle {}).data")
+    assertTypeError("VecInit(1.U).data")
+  }
+
+  ".target on arbitrary Data objects" should "not work" in {
+    assertTypeError("UInt(8.W).target")
+    assertTypeError("8.S.target")
+    assertTypeError("(new Bundle {}).target")
+    assertTypeError("VecInit(1.U).target")
+  }
+
+  ".x on Strings and Numerical values" should "not work" in {
+    assertTypeError("3.x")
+    assertTypeError("3L.x")
+    assertTypeError("BigInt(-4).x")
+    assertTypeError("false.x")
+    assertTypeError(""""a".x""")
+  }
+
+  ".bigint on Strings and Numerical values" should "not work" in {
+    assertTypeError("3.bigint")
+    assertTypeError("3L.bigint")
+    assertTypeError("BigInt(-4).bigint")
+    assertTypeError("false.bigint")
+    assertTypeError(""""a".bigint""")
+  }
+
+  ".target on DecoupledIO" should "not work" in {
+    import chisel3.util._
+    assertTypeError("Decoupled(UInt(8.W)).target")
+  }
+}
+
-- 
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