Editions Ideas

[Vladimir Panteleev]

On Sunday, 11 January 2026 at 06:47:42 UTC, IchorDev wrote:
> One big thing I'd love would be for us to stop requiring a 
> `break` at the end of each `case`; instead a case should 
> default to breaking at the end, which is what you want 99% of 
> the time. We already require an explicit `goto case` for 
> fall-through, and give an error otherwise, so this won't break 
> existing code.

I don't think this is going to happen due to C source 
compatibility being one of the design goals of D - if you paste 
in C code, it should either compile and work in the same way, or 
fail to compile. C has implicit fallthrough (which is presumably 
used intentionally) so it would be the exactly same syntax in 
both C and D but which do very different things. The most likely 
way towards improving this is probably a new pattern-matching 
syntax to replace the C-like switch/case.

> Switch-case statements with short cases are so much nicer to 
> read without all the redundant `break`s everywhere:

I've been doing this a lot:

```d
int x = 1;
string result = {
	switch(x) {
		case 0:
			return "hi";
		case 1:
			return "bye";
		default:
			return "invalid code!";
	}
}();
writeln(result);
```