[Issue 7124] Alias this type is not considered in template type deduction

[d-bugmail at puremagic.com]

http://d.puremagic.com/issues/show_bug.cgi?id=7124


Kenji Hara <k.hara.pg at gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|Alias this doesn            |Alias this type is not
                   |                            |considered  in template
                   |                            |type deduction


--- Comment #1 from Kenji Hara <k.hara.pg at gmail.com> 2011-12-17 01:48:44 PST ---
Following code doesn't compile.
----
template StaticArrayOf(T : E[dim], E, size_t dim)
{
    pragma(msg, "T = ", T, ", E = ", E, ", dim = ", dim);
    alias E[dim] StaticArrayOf;
}

template DynamicArrayOf(T : E[], E)
{
    pragma(msg, "T = ", T, ", E = ", E);
    alias E[] DynamicArrayOf;
}

template AssocArrayOf(T : V[K], K, V)
{
    pragma(msg, "T = ", T, ", K = ", K, ", V = ", V);
    alias V[K] AssocArrayOf;
}
void main()
{
    struct SA { int[5] sa; alias sa this; }
    static assert(is(StaticArrayOf!SA == int[5]));

    struct DA { int[] da; alias da this; }
    static assert(is(DynamicArrayOf!DA == int[]));

    struct AA { int[string] aa; alias aa this; }
    static assert(is(AssocArrayOf!AA == int[string]));
}

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