Private Properties

[DartBot]

This issue was originally filed by gplt...@gmail.com

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What steps will reproduce the problem?

1. Create a class with properies
2. Access property of the class using the get
3. Access the property directly using the class._property;

What is the expected output? What do you see instead?
I wanted to make the _ variable private.
Private is not supported

What version of the product are you using? On what operating system?
Dart IDE : Version 0.1.0.201205110807, Build 7552
Dart SDK version 7552, Dartium version

Please provide any additional information below.
I understand that Dart currently does not support private properties within a class. I just want to know what was the reasoning behind this? As Get/Set give access to the property and backwards compatibility for JS should be handled within this context. I am currently writing a tutorial on this subject and want to be able to give a solid (correct) reason for this.

Thank you in advance....

Example:
class Person {
 Private String _firstName;

 void set firstName(String value) {
    this._firstName = value;
 }

 String get firstName() {
    return this._firstName;
 }
}

[kevmoo]

Are you accessing the _firstName field from the same library?

Dart's access model only prevents access to private members from other libraries.

FTS: http://www.dartlang.org/docs/spec/latest/dart-language-specification.html#h.9oi5o1gdzoe8

[kasperl]

Added Area-Language, Triaged labels.

[gbracha]

As noted above, Dart has library based privacy. This gives programmer's a lot of flexibility. We assume one author (or closely connected authors) per library, and so there is no real need for per-class privacy for a software engineering perspective.

From a security viewpoint, isolates prevent unauthorized access.

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Set owner to @gbracha.
Removed Type-Defect label.
Added Type-Enhancement, WontFix labels.