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// SPDX-License-Identifier: Apache-2.0
package firrtl.options
/** The supertype of all exit codes */
sealed trait ExitCode { val number: Int }
/** [[ExitCode]] indicating success */
object ExitSuccess extends ExitCode { val number = 0 }
/** An [[ExitCode]] indicative of failure. This must be non-zero and should not conflict with a reserved exit code. */
sealed trait ExitFailure extends ExitCode
/** An exit code indicating a general, non-specific error */
object GeneralError extends ExitFailure { val number = 1 }
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