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// SPDX-License-Identifier: Apache-2.0
package firrtl.options
/** Indicate a generic error in a [[Phase]]
* @param message exception message
* @param cause an underlying Exception that this wraps
*/
class PhaseException(val message: String, cause: Throwable = null) extends RuntimeException(message, cause)
/** Indicate an error related to a bad [[firrtl.annotations.Annotation Annotation]] or it's command line option
* equivalent. This exception is always caught and converted to an error message by a [[Stage]]. Do not use this for
* communicating generic exception information.
* @param message exception message [[scala.Predef.String String]]
* @param cause the reason for this exception (a Java [[java.lang.Throwable Throwable]])
*/
class OptionsException(val message: String, cause: Throwable = null) extends IllegalArgumentException(message, cause)
/** Indicates that a [[Phase]] is missing some mandatory information. This likely occurs either if a user ran something
* out of order or if the compiler did not run things in the correct order.
*/
class PhasePrerequisiteException(message: String, cause: Throwable = null) extends PhaseException(message, cause)
/** Indicates that a [[Stage]] or [[Phase]] has run into a situation where it cannot continue. */
final class StageError(val code: ExitFailure = GeneralError, cause: Throwable = null) extends Error("", cause)
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