// SPDX-License-Identifier: Apache-2.0

package firrtl.passes

import firrtl.Transform
import firrtl.ir._
import firrtl.options.Dependency
import firrtl.stage.transforms.CheckScalaVersion

object CheckChirrtl extends Pass with CheckHighFormLike {

  override def prerequisites = Dependency[CheckScalaVersion] :: Nil

  override val optionalPrerequisiteOf = firrtl.stage.Forms.ChirrtlForm ++
    Seq(Dependency(CInferTypes), Dependency(CInferMDir), Dependency(RemoveCHIRRTL))

  override def invalidates(a: Transform) = false

  def errorOnChirrtl(info: Info, mname: String, s: Statement): Option[PassException] = None
}