for example, I have the code (code in sample generates different
types of Properties dependingly on struct's mode value):
```D
struct PropSetting
{
string mode;
string type;
string var_name;
string title_name;
string default_value;
}
mixin template mixin_install_multiple_properties(PropSetting[]
settings)
{
import std.format;
static foreach (v; settings)
{
static if (v.mode == "gs_w_d")
{
mixin(
q{
private {
mixin Property_%1$s!(%2$s, "%3$s", %5$s);
}
mixin Property_forwarding!(%2$s, %3$s,
"%4$s");
}.format(
v.mode,
v.type,
v.var_name,
v.title_name,
v.default_value,
)
);
}
static if (v.mode == "gsu" || v.mode == "gs" || v.mode ==
"gsun")
{
mixin(
q{
private {
mixin Property_%1$s!(%2$s, "%3$s");
}
mixin Property_forwarding!(%2$s, %3$s,
"%4$s");
}.format(
v.mode,
v.type,
v.var_name,
v.title_name,
)
);
}
}
}
```
currently it works kind of ok. but what it's missing is check on
what none of [static if]s have worked. Ideally, I would want an
static 'switch here', so I could make `static assert(false)` in
it. and/or I'd like some sort of [compile time variable] to
change it if [static if]s have worked and check such [compile
time variable] later.
