context.get(DiagnosticListener.class);
this.diagListener = diagListener;
//errWriter.println(this.diagListener);//我加的
Source source = Source.instance(context);
this.enforceMandatoryWarnings = source.enforceMandatoryWarnings();
DEBUG.P("promptOnError="+promptOnError);
DEBUG.P("emitWarnings="+emitWarnings);
DEBUG.P("MaxErrors="+MaxErrors);
DEBUG.P("MaxWarnings="+MaxWarnings);