On 9/4/15 8:04 AM, Martin Nowak wrote:
On Tuesday, 1 September 2015 at 06:33:30 UTC, Jacob Carlborg wrote:
I suspect this is intended?


The problem is that you're hiding a method that is still reachable
through the vtable.
Rather than throwing a runtime error this was changed to a compiler error.

https://github.com/D-Programming-Language/dmd/pull/4606

You should not turn off deprecations btw ;).

The simple solution in you case is to override the inherited `string
toString()` with an implementation that forwards to your `toString()`.

class UniText
{
     override string toString() { return toString(null).idup; }
     abstract const char[] toString (char[]  dst = null);
     abstract const wchar[] toString16 (wchar[] dst = null);
     abstract const dchar[] toString32 (dchar[] dst = null);
}

Also see at
https://github.com/D-Programming-Language/druntime/blob/4e799b75ebcb6d00ccefbcfd763a1f5d158357a1/src/object.d#L1598
for an example of an alternative overridable toString method.
Maybe you should use the delegate based toString as well, it's already
supported by a some phobos formatting.

Why did this compile/pass tests then? I wasn't aware of this restriction.

https://github.com/D-Programming-Language/phobos/pull/3572

-Steve

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