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// See LICENSE for license details.
package firrtl.options.phases
import firrtl.AnnotationSeq
import firrtl.annotations.{DeletedAnnotation, JsonProtocol}
import firrtl.options.{Phase, PreservesAll, StageOptions, Unserializable, Viewer}
import firrtl.options.Dependency
import java.io.PrintWriter
/** [[firrtl.options.Phase Phase]] that writes an [[AnnotationSeq]] to a file. A file is written if and only if a
* [[StageOptions]] view has a non-empty [[StageOptions.annotationFileOut annotationFileOut]].
*/
class WriteOutputAnnotations extends Phase with PreservesAll[Phase] {
override def prerequisites =
Seq( Dependency[GetIncludes],
Dependency[ConvertLegacyAnnotations],
Dependency[AddDefaults],
Dependency[Checks] )
override def dependents = Seq.empty
/** Write the input [[AnnotationSeq]] to a fie. */
def transform(annotations: AnnotationSeq): AnnotationSeq = {
val sopts = Viewer[StageOptions].view(annotations)
val serializable = annotations.filter{
case _: Unserializable => false
case _: DeletedAnnotation => sopts.writeDeleted
case _ => true
}
sopts.annotationFileOut match {
case None =>
case Some(file) =>
val pw = new PrintWriter(sopts.getBuildFileName(file, Some(".anno.json")))
pw.write(JsonProtocol.serialize(serializable))
pw.close()
}
annotations
}
}
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