[Issue 11499] New: is-expression misbehaving with 'alias this'

[d-bugmail at puremagic.com]

https://d.puremagic.com/issues/show_bug.cgi?id=11499

           Summary: is-expression misbehaving with 'alias this'
           Product: D
           Version: unspecified
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: normal
          Priority: P2
         Component: DMD
        AssignedTo: nobody at puremagic.com
        ReportedBy: tommitissari at hotmail.com


--- Comment #0 from Tommi <tommitissari at hotmail.com> 2013-11-11 13:51:54 PST ---
This affects at least std.traits.isInstanceOf.

struct A(T)
{}

struct B
{
    A!int _a;
    alias _a this;
}

void main()
{
    static assert(!is(B == A!int)); // OK
    static assert(!is(B == A!X, X)); // assertion fails
}

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