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• HideNonSensicalMessages.scala

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dotty.tools.dotc.reporting.HideNonSensicalMessages.scala Maven / Gradle / Ivy

package dotty.tools
package dotc
package reporting

import core.Contexts.Context
import diagnostic.MessageContainer

/**
 * This trait implements `isHidden` so that we avoid reporting non-sensical messages.
 */
trait HideNonSensicalMessages extends Reporter {
  /** Hides non-sensical messages, unless we haven't reported any error yet or
   *  `-Yshow-suppressed-errors` is set.
   */
  override def isHidden(m: MessageContainer)(implicit ctx: Context): Boolean =
    super.isHidden(m) || {
        m.isNonSensical &&
        hasErrors && // if there are no errors yet, report even if diagnostic is non-sensical
        !ctx.settings.YshowSuppressedErrors.value
    }
}