bug#61302: 29.0.60; rust-ts-mode does not show function-invocation on field-properties

[Dmitry Gutov]

On 15/02/2023 04:07, Randy Taylor wrote:
> Basically what we have here are general scoped_identifier queries that we want 
> to apply only to the actual code (i.e. not imports). However, these 
> scoped_identifiers also exist in the imports and the same highlighting 
> semantics don't apply there, so we have specific queries for the different 
> kinds of imports that specify how they want their scoped_identifier stuff 
> highlighted.

The only option I've been thinking of (and described in some related 
report), is to replace the face name with a highlighter in Lisp.

See rust-ts-mode--fontify-pattern as an example of such function.

But the new one will need to check that the parent is 
'scoped_identifier', and the grandparent is not a 'call_expression' 
node, or 'use_as_clause', or 'use_declaration', etc, and the name itself 
is lowercase -- when so, skip highlighting. And highlight with one of 
the two faces when otherwise.

Shouldn't be too hard to do, but I'm wary about the additional cost at 
runtime.