I've created textobjects for types

[daniilrozanov]

This queries currently only for c++ (and c). Queries create new @type.inner, which is type without any qualifiers, and @type.outer which includes const and volatile. Works inside variable declaration, function's parameter declaration, using and typedef.

(declaration type: (_) @type.inner)

((declaration . (_) @_start @_end (_)? @_end . declarator: (_) .)(#make-range! "type.outer" @_start @_end))

(parameter_declaration type: (_) @type.inner)

((parameter_declaration . (_) @_start @_end (_)? @_end . declarator: (_) .)(#make-range! "type.outer" @_start @_end))

(type_definition type: (_) @type.inner)

((type_definition . (_) @_start @_end (_)? @_end . declarator: (_) .)(#make-range! "type.outer" @_start @_end))

; for cpp
(alias_declaration type: (type_descriptor type: (_) @type.inner) @type.outer)

I found it useful, but due to the fact that I don’t know much about treesitter, I want to ask how good this idea is, whether it can be extended to other languages ​​and maybe it’s worth creating a PR (or issue).

EDIT.

Maybe its worth to add some explanation.

type.inner selects

    const unsigned int volatile i = 0;
//_______ ^^^^^^^^^^^^

type.outer selects

    const unsigned int volatile i = 0;
// _^^^^^^^^^^^^^^^^^^^^^^^^^^^