On 2009-07-24 17:40:37 -0400, Walter Bright <[email protected]> said:
It's just that D is complex enough - there needs to be some very good
reasons for adding more syntax that has apparently zero semantic
information that would be different from the usual function syntax.
You know. I agree with you on that point. Earlier, in a thread no one
replied to [1], demonstrated that we already have almost everyting we
need to create properties using mixins. Here's an example:
struct Z
{
int valueSquare;
template Property()
{
int value;
void opAssign(int v) { value = v; valueSquare = value *
value; }
void opAddAssign(int v) { value = v; valueSquare =
value * value; }
int get() { return value; }
alias get this;
}
mixin Property property;
}
The only really missing part is that "alias get this" doesn't work
("Error: expression has no value" when fetching a value from
z.property) so you have to explicitly call the "get" function.
[1]:
http://www.digitalmars.com/d/archives/digitalmars/D/properties_using_template_mixins_and_alias_this_87952.html
--
Michel Fortin
[email protected]
http://michelf.com/
