[Issue 11186] New: Regression (2.061): Presence of Variant and const field invokes opAssign

d-bugmail at puremagic.com d-bugmail at puremagic.com
Sun Oct 6 13:24:23 PDT 2013


http://d.puremagic.com/issues/show_bug.cgi?id=11186

           Summary: Regression (2.061): Presence of Variant and const
                    field invokes opAssign
           Product: D
           Version: D2
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: regression
          Priority: P2
         Component: DMD
        AssignedTo: nobody at puremagic.com
        ReportedBy: andrej.mitrovich at gmail.com


--- Comment #0 from Andrej Mitrovic <andrej.mitrovich at gmail.com> 2013-10-06 13:24:21 PDT ---
-----
import std.variant;

struct S
{
    Variant v;
    const(bool) b;
}

class C
{
    this()
    {
        s = S.init;  // why is this calling opAssign?
    }

    S s;
}

void main() { }
-----

2.060:
$ dmd test.d
> 

2.061:
$ dmd test.d
> Error: can only initialize const member b inside constructor

2.062, 2.063, 2.064 (git-head):
$ dmd test.d
> test.d(15): Error: function test.S.opAssign is not callable because it is annotated with @disable

If *either* (or both of course) the variant or boolean fields are removed, it
compiles fine. But for some reason when both are present, there's a compile
error.

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