Re: How to add pseudo vector types

[Stefan Monnier]

>> > But that's how the current font-lock and indentation work: they never
>> > look beyond the narrowing limits.
>> Not quite: that's true for indentation, but for font-lock we have
>> `font-lock-dont-widen` (i.e. by default, font-lock widens temporarily
>> while it does its job).
> jit-lock never requests fontifications outside of the accessible
> portion, because redisplay doesn't look there.

But font-lock may look (and fontify) beyond the narrowing, and
when it calls `syntax-ppss` it will usually parse from 1 rather than
from `point-min`.

I'd expect jit/font-lock running on top of TS to behave similarly: the
actual parsing is done over the widened buffer but the fontification is
only applied to the visible part (or nearby).


        Stefan