Stringified annotations (#367)

Restricts annotations to be string-based (and thus less typesafe)
Makes annotations more easily serializable and interact with Chisel

1 files changed, 9 insertions, 1 deletions

diff --git a/src/main/scala/firrtl/Compiler.scala b/src/main/scala/firrtl/Compiler.scala
index 2e155885..106c973f 100644
--- a/src/main/scala/firrtl/Compiler.scala
+++ b/src/main/scala/firrtl/Compiler.scala
@@ -4,7 +4,7 @@ package firrtl
 
 import logger.LazyLogging
 import java.io.Writer
-import Annotations._
+import annotations._
 
 import firrtl.ir.Circuit
 import passes.Pass
@@ -15,6 +15,14 @@ import passes.Pass
  */
 case class RenameMap(map: Map[Named, Seq[Named]])
 
+/**
+ * Container of all annotations for a Firrtl compiler.
+ */
+case class AnnotationMap(annotations: Seq[Annotation]) {
+  def get(id: Class[_]): Seq[Annotation] = annotations.filter(a => a.transform == id)
+  def get(named: Named): Seq[Annotation] = annotations.filter(n => n == named)
+}
+
 /** Current State of the Circuit
   *
   * @constructor Creates a CircuitState object