Sdk: Eliminate writing underscore(_) every time for private data member.

[DartBot]

_This issue was originally filed by [e-mail]_

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While declaring a 'private to library' data member in Dart, I have to prefix it everywhere with underscore(_). But Why it is required after declaration? Can't we access private data members without having underscore as prefix all the time?

For example: if I write ,

void main() {
  
  int _i;

}
I have to write underscore every time I have to access i after declaration like:

void main() {
  
  int _i;
  
  for (_i = 0; _i < 5; _i++) {
    print('hello ${_i + 1}');
  }
}

Instead, it should be written as :

void main() {
  
  int _i;

  for (i = 0; i < 5; i++) {
    print('hello ${i + 1}');
  }
}

i has already been declared as private, there is no need to write underscore every time.

What I mean to say is that If I declare a data member as private once, it should be used without underscore(_) prefix so that I can freely declare any variable private once and after that use it without _ prefix.

Dart SDK version: 1.10
Operating system : Windows 7 32 bit
Issue type : Enhancement

[lrhn]

That probably won't work.

The problem is that in Dart, you don't know at compile time what a variable refers to.

Example:
  class C {
    var _i; // aka "private i;"
    foo(object) => object.i;
  }
Should the foo function look up the private "i" name or a public "i" name on "object"?

Basically, it's not going to work.

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_Added Area-Language, Triaged labels._

[DartBot]

_This comment was originally written by [e-mail]_

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Then this is bad about the language. I will have to remember all the time which variables are private and which are public. Don't you think it should be improved?

[krupalshah]

any update regarding visibility model in Dart? It is really bad to write underscores and there are hundread of users who are waiting for change.