CODEWITHSUNDEEP
flutterdart
Scorb
Scorb

Reputation: 1870

Have dart class public, but constructor private

I am wondering if there is a way to have a dart class be public, but its contructor be library private. I have a JsonParsing library that will throw its own exception type, but it doesn't make sense for anyone outside of the library to construct this exception. 

library json_parser;

import 'dart:convert';

class JsonParseException implements Exception {
    final String cause;
    JsonParseException(this.cause); // make this inaccessible in some way?
}

Upvotes: 1

Views: 161

Answers (1)

Rémi Rousselet
Rémi Rousselet

Reputation: 277057

You can use a private named constructor:

class Foo {
  Foo._();
}

Upvotes: 3

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