On Thursday, 10 August 2023 at 08:33:13 UTC, Christian Köstlin
wrote:
I think one part of the original question (now fanished in the
nntp backup) was how to get all enum members into a list
without duplicating code.
```d
import std.traits : EnumMembers;
import std.stdio : writeln;
import std.algorithm : map;
import std.conv : to;
enum alphabet {
a, b, c, d
}
void main()
{
writeln(EnumMembers!alphabet);
writeln([EnumMembers!alphabet]);
writeln([EnumMembers!alphabet].map!(a => "test"
~a.to!string));
}
```
results in
```d
abcd
[a, b, c, d]
["testa", "testb", "testc", "testd"]```
```
How can we add all members of an enum type to a list without
duplicating code?
I wonder if this is something we'll see soon as the D language
feature?
In the D programming language, this can be achieved using
features provided by the language such as __traits and AliasSeq.
For instance, the EnumMembers trait from the std.traits module
returns all members of an enum type as a tuple. This tuple
contains the enum members in sequence, allowing for iteration
over them or conversion into a list.
Finally, utilizing these language features to avoid code
duplication and write cleaner, more maintainable code is a good
practice. Sorry to resurrect this old thread, but what do you
think; people living in 2024 ?
SDB@79
