On Wednesday, 25 December 2024 at 16:41:05 UTC, sfp wrote:
On Wednesday, 25 December 2024 at 07:57:04 UTC, monkyyy wrote:
static foreach, traits and mixin
I was looking into this but I think I need some help getting
off the ground...
This doesn't compile:
```
enum Test { mixin("A, B, C") }
```
```
import std;
enum string[] domains=["Ball","Box","CsgDiff"];//could be from
traits but I think traits when strings will do is bad
enum string[] lowerdomains=["ball","box","csgDiff"];//could be
ctfe but... eh
mixin("enum DomainType{"~domains.joiner(",").array~"}");//array
makes allot of range code simpler to work with, at costs of speed
string makeunion(){
string o;
o~="union{";
foreach(i;0..domains.length){
o~=domains[i]~"!Dim ";
o~=lowerdomains[i]~";";
}
o~="}";
return o;
}
string makeconstructor(int i){
string o;
o~="this("~domains[i]~"!Dim "~lowerdomains[i]~"){\n";
o~="this.type=DomainType."~domains[i]~";\n";
o~="this."~lowerdomains[i]~"="~lowerdomains[i]~";}";
return o;
}
unittest{
//makeconstructor(1).writeln;
}
struct Ball(int i){}
struct Box(int i){}
struct CsgDiff(int i){}
struct Domain(int Dim){
DomainType type;
mixin(makeunion);
static foreach(i;0..domains.length){
mixin(makeconstructor(i));
}
void doSomething(){
lable:switch(type){
static foreach(E;DomainType.min..DomainType.max){
case E: E.stringof.writeln; break lable;
}
default:
}}
}
unittest{
auto foo=Domain!1(Ball!1());
foo.doSomething;
}
```
