https://issues.dlang.org/show_bug.cgi?id=13629

          Issue ID: 13629
           Summary: Field postblit can't be generated for const field
           Product: D
           Version: D2
          Hardware: All
                OS: All
            Status: NEW
          Severity: normal
          Priority: P1
         Component: DMD
          Assignee: nobody@puremagic.com
          Reporter: wazar.leollone@yahoo.com

module test1;

struct A
{
    this(this)
    {
    }
}

struct B
{
    A a;
}


struct C
{
    const B b;
}

void main()
{
    C c;
}

This code raises an error:
Error: mutable method test1.B.__fieldPostBlit is not callable using a const
object

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