How to make a static immutable associative array using assocArray in CT?

[monkyyy]

On Tuesday, 10 February 2026 at 21:52:52 UTC, realhet wrote:
> On Tuesday, 10 February 2026 at 21:14:29 UTC, monkyyy wrote:
>> On Tuesday, 10 February 2026 at 20:46:11 UTC, realhet wrote:
>>> Hi,
>>
>>
>> ```d
>> enum int[string] foo=(){
>> 	int[string] o;
>> 	o["hi"]=2;
>> 	o["bye"]=3;
>> 	o["hi"]=4;
>> 	return o;
>> }();
>> ```
>
> ```d
> static immutable foo = ["this":2, "works":3, "fine":4];
> ```
>
> The problem occurs when I do it with assocArray() function and 
> giving it the key and value ranges from an enum.
>
> I want to automatize this dictionary because the contents of 
> that enum will be changed/maintained later.

```d
import std;
enum SysType {Entity, String, Int, Bool, Float, Double, DateTime, 
Date, Time}

enum stringofenum(alias T)=(){
	string[T] o;
	static foreach(t;__traits(allMembers, T)){
		o[mixin("T."~t)]=t;
	}
	return o;
}();

unittest{
	stringofenum!SysType.writeln;
}

static immutable foo=stringofenum!SysType;
unittest{
	foo.writeln;
}
```