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// SPDX-License-Identifier: Apache-2.0
package firrtl
import scala.util.control.NoStackTrace
@deprecated("External users should use either FirrtlUserException or their own hierarchy", "FIRRTL 1.2")
object FIRRTLException {
def defaultMessage(message: String, cause: Throwable) = {
if (message != null) {
message
} else if (cause != null) {
cause.toString
} else {
null
}
}
}
@deprecated("External users should use either FirrtlUserException or their own hierarchy", "FIRRTL 1.2")
class FIRRTLException(val str: String, cause: Throwable = null)
extends RuntimeException(FIRRTLException.defaultMessage(str, cause), cause)
/** Exception indicating user error
*
* These exceptions indicate a problem due to bad input and thus do not include a stack trace.
* This can be extended by custom transform writers.
*/
class FirrtlUserException(message: String, cause: Throwable = null)
extends RuntimeException(message, cause)
with NoStackTrace
/** Wraps exceptions from CustomTransforms so they can be reported appropriately */
case class CustomTransformException(cause: Throwable) extends Exception("", cause)
/** Exception indicating something went wrong *within* Firrtl itself
*
* These exceptions indicate a problem inside the compiler and include a stack trace to help
* developers debug the issue.
*
* This class is private because these are issues within Firrtl itself. Exceptions thrown in custom
* transforms are treated differently and should thus have their own structure
*/
private[firrtl] class FirrtlInternalException(message: String, cause: Throwable = null)
extends Exception(message, cause)
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