
// // Copyright (c) 2006, Brian Frank and Andy Frank // Licensed under the Academic Free License version 3.0 // // History: // 11 Jan 06 Brian Frank Creation // ** ** Err is the base class of all exceptions. ** const class Err { ////////////////////////////////////////////////////////////////////////// // Constructor ////////////////////////////////////////////////////////////////////////// ** ** Construct with specified error message and optional root cause. ** new make(Str msg := null, Err cause := null) ////////////////////////////////////////////////////////////////////////// // Methods ////////////////////////////////////////////////////////////////////////// ** ** Get the string message passed to the contructor or null if ** a message is not available. ** Str message() ** ** Get the underyling cause exception or null. ** Err cause() ** ** Dump the stack trace of this exception to the specified ** output stream (or Sys.out by default). Return this. ** This trace(OutStream out := Sys.out) ** ** Dump the stack trace of this exception to a Str. ** Str traceToStr() ** ** Return the qualified type name and optional message. ** override Str toStr() }