https://issues.dlang.org/show_bug.cgi?id=14196

Илья Ярошенко <ilyayaroshenko@gmail.com> changed:

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--- Comment #1 from Илья Ярошенко <ilyayaroshenko@gmail.com> ---
Blocks PR https://github.com/D-Programming-Language/phobos/pull/3397

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https://issues.dlang.org/show_bug.cgi?id=14196

qs.il.paperinik@gmail.com changed:

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                 CC|                            |qs.il.paperinik@gmail.com

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https://issues.dlang.org/show_bug.cgi?id=14196

--- Comment #2 from Bolpat <qs.il.paperinik@gmail.com> ---
You can overload on attributes:

struct MyArray(T)
{
    int opApply(scope int delegate(ref T)         dg);
    int opApply(scope int delegate(ref T) nothrow dg) nothrow;
}

This is not DRY and if the code inside opApply might throw depending on T, the
second overload won't compile.
Using templates breaks generic code that omits the foreach variables' types
(which is what generic code usually does).

If your case is only about nothrow (or any other single attribute), you can
define a template
    int opApplyImpl(DG)(scope DG dg)
and alias opApply to specific instantiations:
    alias opApply = opApplyImpl!(int delegate(ref T)        );
    alias opApply = opApplyImpl!(int delegate(ref T) nothrow);
Whether this solution is viable or not depends on details of your case.

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https://issues.dlang.org/show_bug.cgi?id=14196

--- Comment #3 from Mathias LANG <pro.mathias.lang@gmail.com> ---
For reference, I mentioned a solution to this problem which I'm working on during DConf: https://www.youtube.com/watch?v=9lOtOtiwXY4

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https://issues.dlang.org/show_bug.cgi?id=14196

Iain Buclaw <ibuclaw@gdcproject.org> changed:

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https://issues.dlang.org/show_bug.cgi?id=14196

--- Comment #4 from dlangBugzillaToGithub <robert.schadek@posteo.de> ---
THIS ISSUE HAS BEEN MOVED TO GITHUB

https://github.com/dlang/dmd/issues/17698

DO NOT COMMENT HERE ANYMORE, NOBODY WILL SEE IT, THIS ISSUE HAS BEEN MOVED TO GITHUB

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