[Issue 8726] About immutable and const constructors

[d-bugmail at puremagic.com]

http://d.puremagic.com/issues/show_bug.cgi?id=8726



--- Comment #1 from Kenji Hara <k.hara.pg at gmail.com> 2013-04-26 00:15:48 PDT ---
In 2.063, qualified constructor will be supported properly.
This code would work in 2.063.

class A
{
    int x;
    this() immutable { x = 42; }
    this()           { x = 13; }
}
class B
{
    int x;
    this() const { x = 42; }
    this()       { x = 13; }
}
void main()
{
    A ma = new A;
    assert(ma.x == 13);
    //immutable A ia = new A;
    //--> Error: cannot implicitly convert expression (new A)
    //    of type test.A to immutable(A)
    immutable A ia = new immutable A;
    assert(ia.x == 42);

    const B mb = new B;
    assert(mb.x == 13);
    const B cb = new const B;
    assert(cb.x == 42);
    //immutable B ib = new B;
    //--> Error: cannot implicitly convert expression (new B)
    //    of type test.B to immutable(B)
}

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