On Saturday, 21 August 2021 at 17:33:51 UTC, Jeremy T. Gibson
wrote:
is there a simple way to get the unqualified name of a class at
runtime without having to pass it through std.format?
`typeid(class).name` always yields the full classname,
including its module information (i.e.,
"modulename.classname"), where I only want "classname" on its
own.
https://dlang.org/phobos/object.html#.TypeInfo_Class.name is all
you have there, and it's just a string, so the simple way is to
manipulate the string.
This seems a bit silly but I'm not worried about VMS 2.0 coming
along and changing how extensions work ("nodot".extension == ""
however, so if module-less classes are possible then this would
fail with a RangeError):
```d
class Whoami {
string report() {
import std.path : extension;
return "class: " ~ typeid(this).name.extension[1..$];
}
}
class AnotherOne : Whoami {}
unittest {
assert((new Whoami).report == "class: Whoami");
assert((new AnotherOne).report == "class: AnotherOne");
}
string unqualified(string name) {
import std.string : lastIndexOf;
import std.algorithm : min;
const i = name.lastIndexOf('.');
return i == -1 ? name : name[min(i+1, $) .. $];
}
unittest {
assert(typeid(new Whoami).name.unqualified == "Whoami");
assert(typeid(new AnotherOne).name.unqualified ==
"AnotherOne");
assert("".unqualified == "");
assert("x".unqualified == "x");
assert("x.".unqualified == "");
}
```
