September 22
On Thursday, 17 September 2020 at 19:38:01 UTC, Andrei Alexandrescu wrote:
> On 9/17/20 3:33 PM, Per Nordlöw wrote:
>> On Thursday, 17 September 2020 at 07:06:24 UTC, FeepingCreature wrote:
>>> It only requires the change that || return the merged truthy type of its parameters rather than bool. For instance, for objects 'a || b' would merge to the most derived superclass of a and b.
>> 
>> That is an interesting idea. Which statically typed languages has taken a similar approach? I wonder what Andrei thinks about this.
>
> I recall Perl does something similar with its "or" operator. Changing || that way now would be too much breakage.

Perl5 has `or` *and* `||` and they have different precedence because, well, it's Perl.
September 22
On Thursday, 17 September 2020 at 19:33:43 UTC, Per Nordlöw wrote:
> On Thursday, 17 September 2020 at 07:06:24 UTC, FeepingCreature wrote:
>> It only requires the change that || return the merged truthy type of its parameters rather than bool. For instance, for objects 'a || b' would merge to the most derived superclass of a and b.
>
> That is an interesting idea. Which statically typed languages has taken a similar approach? I wonder what Andrei thinks about this.

Languages with Flow-typing.
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