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// SPDX-License-Identifier: Apache-2.0
package firrtl
import firrtl.stage.TransformManager.TransformDependency
/** This trait helps ease migration from old [[firrtl.CircuitForm CircuitForm]] specification of dependencies to
* Dependency API specification of dependencies. This trait implements deprecated, abstract [[Transform]] methods
* (`inputForm` and `outputForm`) for you and sets default values for dependencies:
*
* - `prerequisites` are empty
* - `optionalPrerequisites` are empty
* - `optionalPrerequisiteOf` are empty
* - all transforms are invalidated
*
* For more information, see: https://bit.ly/2Voppre
*/
trait DependencyAPIMigration { this: Transform =>
@deprecated("Use Dependency API methods for equivalent functionality. See: https://bit.ly/2Voppre", "FIRRTL 1.3")
final override def inputForm: CircuitForm = UnknownForm
@deprecated("Use Dependency API methods for equivalent functionality. See: https://bit.ly/2Voppre", "FIRRTL 1.3")
final override def outputForm: CircuitForm = UnknownForm
override def prerequisites: Seq[TransformDependency] = Seq.empty
override def optionalPrerequisites: Seq[TransformDependency] = Seq.empty
override def optionalPrerequisiteOf: Seq[TransformDependency] = Seq.empty
override def invalidates(a: Transform): Boolean = true
}
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