Add ---> ligature

[nesteruk]

You can get the ---> as a combination of -- and ->; would be nice if there was a ligature for it and if it was somehow different from the -> ligature.

[tonsky]

Can you provide an example of how this could've happen?

[nesteruk]

Let's say you have a class Foo implementing operator-- that returns a Bar& and then you have a Bar that has operator ->. Thus, you can write foo--->whatever();.

[JonathonReinhart]

@nesteruk Those are two different operations, and I don't think it makes any sense to combine them. After all, the whole point of ligatures is to convert two-character sequences that have a single meaning to a single token that our brain has to process. If foo--->whatever() was converted to one long arrow, your brain would have to actively *disassemble" it into the -- and -> operators, which is counter-productive to the goal of ligatures.

[krux02]

Sorry for my two cents, but I honestly think this is really a silly idea to want it for c++. I mean I could understand if you want it for another programming language that has the ---> token, but not for c++.

[tonsky]

Yeah, if that’s two different operations we don’t want to have them as a single ligature. It’ll be against the font goals