On 2009-10-08 10:35:01 -0400, Andrei Alexandrescu
<[email protected]> said:
I think you'd find this article interesting:
http://www.ddj.com/article/printableArticle.jhtml?articleID=184405016&dept_url=/java/
That's
quite interesting inded. At the end, the author would like a
Smalltalk-like approach, but believe it's not really possible in a
static language.
But that's exactly what we can have in D by remaking 'new' as a
function template. :-)
Just as the author wants, with a template 'new' function it seems quite
possible to change 'new' into a factory function instanciating the best
class for the given arguments:
void newGC(T, A...)(A args); // create a garbage-collected instance
String new(T: String)(immutable(char)[] utf8Str) {
return newGC!UTF8ImmutableString(utf8str);
}
String new(T: String)(immutable(ubyte)[] strData, int encoding) {
// instanciate the best string type depending on encoding.
if (encoding == UTF8)
return newGC!UTF8ImmutableString(cast(string)strData); else if
(encoding == ISO_LATIN_1)
return
newGC!OneBytePerCharImmutableString(cast(string)strData, encoding);
else
...
}
--
Michel Fortin
[email protected]
http://michelf.com/
