On Tuesday, 26 November 2013 at 17:11:38 UTC, Andrei Alexandrescu wrote:
On 11/26/13 8:52 AM, ilya-stromberg wrote:
On Tuesday, 26 November 2013 at 16:27:27 UTC, Andrei Alexandrescu wrote:
The win of (2) itself is yet to be quantified and the breakage is large.

Excuse me, did you mean "disable shadowing global variables" or "disable
shadowing class members"?

The latter.

Thanks for explanation.
I was confused because number (2) is "disable shadowing global variables" and you wrote that don't want to have it. Thank you for explanation because I can't interpret your opinion as I want.

If I understand everything correctly, Walter said that "Shadowing members, it's debatable". His main objection was about initializing variables in constructor, but we can add syntax sugar for this case.

See also:
http://forum.dlang.org/post/[email protected]
http://forum.dlang.org/post/[email protected]
http://d.puremagic.com/issues/show_bug.cgi?id=9801

I think Walter agrees that we can't disallow shadowing globals. Adding additional sugar is pretty much the kiss of death for the entire notion of disallowing shadowing of members.

Excuse me, I didn't understand you.
The main idea:
1) disable shadowing class members
2) add additional syntax sugar for initializing variables in constructor as was suggested in #9801

It looks like that solves problem. Is it impossible?

As alternative solution, we can allow shadowing members only for function parameters or, maybe, only for constructor. Walter agreed that it's possible, "but at the cost of D becoming more of a mass of special cases that nobody can remember".
http://forum.dlang.org/post/[email protected]

So, syntax sugar in #9801 looks like better solution.

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