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-rw-r--r--src/main/scala/firrtl/passes/Checks.scala6
1 files changed, 6 insertions, 0 deletions
diff --git a/src/main/scala/firrtl/passes/Checks.scala b/src/main/scala/firrtl/passes/Checks.scala
index e176bcc4..8717ffec 100644
--- a/src/main/scala/firrtl/passes/Checks.scala
+++ b/src/main/scala/firrtl/passes/Checks.scala
@@ -33,6 +33,8 @@ trait CheckHighFormLike { this: Pass =>
s"$info: [module $mname] Register $name cannot be a bundle type with flips.")
class InvalidAccessException(info: Info, mname: String) extends PassException(
s"$info: [module $mname] Invalid access to non-reference.")
+ class ModuleNameNotUniqueException(info: Info, mname: String) extends PassException(
+ s"$info: Repeat definition of module $mname")
class ModuleNotDefinedException(info: Info, mname: String, name: String) extends PassException(
s"$info: Module $name is not defined.")
class IncorrectNumArgsException(info: Info, mname: String, op: String, n: Int) extends PassException(
@@ -73,6 +75,10 @@ trait CheckHighFormLike { this: Pass =>
val moduleGraph = new ModuleGraph
val moduleNames = (c.modules map (_.name)).toSet
+ c.modules.view.groupBy(_.name).filter(_._2.length > 1).flatMap(_._2).foreach {
+ m => errors.append(new ModuleNameNotUniqueException(m.info, m.name))
+ }
+
def checkHighFormPrimop(info: Info, mname: String, e: DoPrim): Unit = {
def correctNum(ne: Option[Int], nc: Int): Unit = {
ne match {