visitRoot method
Implementation
@override
String visitRoot(RootNode node) {
_output.write("Root");
if (node.index != null) {
_output.write("\n");
_indent++;
_printIndent();
_output.write("index: ");
visit(node.index!);
_output.write("\n");
_printIndent();
_output.write("content: ");
visit(node.content);
_indent--;
} else {
_output.write("(");
visit(node.content);
_output.write(")");
}
return "";
}