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| Posted by Philippe Sigaud in reply to GG | PermalinkReply |
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Philippe Sigaud
| On Thu, Feb 11, 2010 at 21:22, GG <g@g.com> wrote:
> I tried your trick but I got "Error: cannot append type string to type
> VariantN!(maxSize)[]"
> on : vars ~= "Jan";
>
> I found this : http://d.puremagic.com/issues/show_bug.cgi?id=3692, the issue has been REOPEN.
>
> Thanks for helping !
>
Hmm, it worked for me, but that was almost a year ago. Maybe I wrapped a Variant around?
vars ~= Variant("Jan");
(*testing*)
Yes, it works:
Variant[] vars;
int[char[]][int] indices;
vars ~= Variant("Jan");
indices[0]["Month"] = vars.length-1;
Ugly as sin, though, and cumbersome to use. But I used it to add 'properties' to nodes and edges in a graph class (like, adding weight to edges as double, and names to nodes as strings...) and it worked quite well, with a few functions to hide the trick away.
But it's sad you can't use Variant directly as a value. You can use it as a key, sort of:
int[Variant] test;
test[Variant(3)] = 4; // test[3] = 4 does not work
test[Variant("abc")] = 0;
writeln(test[Variant("abc")]); // 0
auto k = test.keys; // crash! Assertion failure: 'impl' on line 3886 in file
'mtype.c'
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