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[F764.2] Add dumpAnnotations method to Driver #880

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Sep 28, 2018
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[F764.2] Add dumpAnnotations method to Driver #880

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14 changes: 14 additions & 0 deletions src/main/scala/chisel3/Driver.scala
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Original file line number Diff line number Diff line change
Expand Up @@ -127,6 +127,20 @@ object Driver extends BackendCompilationUtilities {
f
}

/**
* Emit the annotations of a circuit
*
* @param ir The circuit containing annotations to be emitted
* @param optName An optional filename (will use s"${ir.name}.json" otherwise)
*/
def dumpAnnotations(ir: Circuit, optName: Option[File]): File = {
val f = optName.getOrElse(new File(ir.name + ".anno.json"))
val w = new FileWriter(f)
w.write(JsonProtocol.serialize(ir.annotations.map(_.toFirrtl)))
w.close()
f
}

/** Dumps the elaborated Circuit to ProtoBuf
*
* If no File is given as input, it will dump to a default filename based on the name of the
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