GNU bug report logs - #61655
[Tree sitter] [Feature Request] font-lock function calls, definitions, separately

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From: Dmitry Gutov <dgutov <at> yandex.ru>
To: Jacob Faibussowitsch <jacob.fai <at> gmail.com>
Cc: Randy Taylor <dev <at> rjt.dev>, Yuan Fu <casouri <at> gmail.com>, 61655 <at> debbugs.gnu.org
Subject: bug#61655: [Tree sitter] [Feature Request] font-lock function calls, definitions, separately
Date: Wed, 22 Feb 2023 01:24:48 +0200

On 21/02/2023 17:31, Jacob Faibussowitsch wrote:
> but maybe a better default is to leave these faces totally blank and
> just purely `:inherit` from `font-lock-function-name-face`

I believe so.

> +(defface font-lock-function-call-face
> +  '((t :inherit font-lock-function-name-face :foreground "royalblue1"))
> +  "Font Lock mode face used to highlight function calls."
> +  :group 'font-lock-faces)

This one I was thinking of as well.

> +(defface font-lock-member-function-call-face
> +  '((t :inherit font-lock-function-name-face :foreground "brightred"))
> +  "Font Lock mode face used to highlight member function calls."
> +  :group 'font-lock-faces)

What's a "member function"? Is it like a method? If people want this 
distinction, we can add such face. But I'm curious whether some other 
editors use different colors for these cases.

I'm also wondering what face we're supposed to use for "receiver-less" 
method calls, such as calls to the methods defined in the same class, in 
e.g. Ruby and Java. Or C++/C#. They don't use 'this'.

I think more importantly, we need a new face for variables.

font-lock-variable-ref-face ?

I also wonder whether we'll need to separate faces for properties: 
definitions vs. uses. That one we could use to do early, to keep the 
names uniform, e.g. we'd have:

  font-lock-function-name-face
  font-lock-function-call-face
  font-lock-variable-name-face
  font-lock-variable-ref-face
  font-lock-property-name-face
  font-lock-property-ref-face

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