[Issue 10012] [2.063 beta] pure constructors taking POD structs should be allowed for shared/immutable construction
d-bugmail at puremagic.com
d-bugmail at puremagic.com
Sat May 4 00:43:07 PDT 2013
http://d.puremagic.com/issues/show_bug.cgi?id=10012
Kenji Hara <k.hara.pg at gmail.com> changed:
What |Removed |Added
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Keywords| |rejects-valid
--- Comment #3 from Kenji Hara <k.hara.pg at gmail.com> 2013-05-04 00:43:03 PDT ---
(In reply to comment #2)
> Sorry, I was blind while preparing the test case. This is the correct one:
>
> ---
> struct S { string str; }
> class Test { S _s; this(S s) pure { _s = s; } }
>
> void main()
> {
> auto test2 = new shared Test(S());
> auto test3 = new immutable Test(S());
> }
> ---
>
> So POD indeed works right, but immutable (and shared) references are seemingly
> disallowed.
This is current dmd implementation limitation. In complex cases dmd cannot
detect that the constructor generates unique object.
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