On 6/5/23 11:33 AM, Basile B. wrote:
On Monday, 5 June 2023 at 15:13:43 UTC, Basile B. wrote:
On Monday, 5 June 2023 at 13:57:20 UTC, Ki Rill wrote:
How do I generate `setX` methods for all private mutable
although I did not spent time on the setter body... I suppose the
question was more about the metprogramming technic, and that you don't
want a pre-mashed solution ;)
By the way...an other solution is to use
[opDispatch](https://dlang.org/spec/operatoroverloading.html#dispatch):
```d
class Color {}
class Rectangle {
private Color fillColor;
private Color strokeColor;
private uint strokeWidth;
auto opDispatch(string member, T)(auto ref T t)
{
static if (member == "setStrokeWidth") {}
else static if (member == "setStrokeColor") {}
else static if (member == "setFillColor") {}
else static assert(0, "cannot set " ~ member);
return this;
}
}
void main()
{
(new Rectangle)
.setStrokeWidth(0)
.setStrokeColor(null)
.setFillColor(null);
}
```
Ugh, don't do it that way. Always give opDispatch a template constraint
or it will suck to use.
Also, given the problem constraints, you can build the method
automatically using the string.
```d
auto opDispatch(string member, T)(auto ref T t) if(member.startsWith("set"))
{
mixin(toLower(m[3]), m[4 .. $], " = t;");
}
```
-Steve
