On Wednesday, 1 November 2017 at 01:16:32 UTC, solidstate1991
wrote:
After I started to alter my graphics engine to use the multiple
kinds of bitmaps (now using multiple language features, like
templates and aliases) on one layer, I noticed that type
detection of bitmap objects would be easier and better
readable, if instead of:
if(bitmapObject.classinfo == typeof(Bitmap4Bit)){
...
}else if(bitmapObject.classinfo == typeof(Bitmap8Bit)){...
I could easily use this:
switch(bitmapObject.classinfo){
case typeof(Bitmap4Bit):
...
case typeof(Bitmap8Bit):
}
On the other hand I cannot really think other uses for such
language feature, maybe with structs.
While it's not entirely ideal something like this works.
```
template ClassName(T, string mod = __MODULE__)
{
enum ClassName = mod ~ "." ~ T.stringof;
}
@property string className(T)(T o)
{
return o.classinfo.toString();
}
```
Example:
```
final switch (bitmapObject.className)
{
case ClassName!Bitmap4Bit: ... break;
case ClassName!Bitmap8Bit: ... break;
}
```
