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package dotty.tools.dotc
package printing
import core._
import Contexts._, Texts._, Decorators._
import config.Config.summarizeDepth
import scala.util.control.NonFatal
trait Showable extends Any {
/** The text representation of this showable element.
* This normally dispatches to a pattern matching
* method in Printers.
*/
def toText(printer: Printer): Text
/** A fallback text representation, if the pattern matching
* in Printers does not have a case for this showable element
*/
def fallbackToText(printer: Printer): Text = toString
/** The string representation of this showable element. */
def show(implicit ctx: Context): String =
try toText(ctx.printer).show
catch {
case NonFatal(ex) => s"[cannot display due to $ex, raw string = $toString]"
}
/** The summarized string representation of this showable element.
* Recursion depth is limited to some smallish value. Default is
* Config.summarizeDepth.
*/
def showSummary(depth: Int)(implicit ctx: Context): String =
ctx.printer.summarized(depth)(show)
def showSummary(implicit ctx: Context): String = showSummary(summarizeDepth)
}
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