nvim-treesitter/runtime/queries/rst/locals.scm

; Scopes
(document) @local.scope

(directive) @local.scope

; Definitions
(title) @local.definition

(substitution_definition
  name: (substitution) @local.definition)

(footnote
  name: (label) @local.definition)

(citation
  name: (label) @local.definition)

(target
  name: (name) @local.definition)

; Inline targets
(inline_target) @local.definition

; The role directive can define a new role
((directive
  name: (type) @_type
  body: (body
    (arguments) @local.definition))
  (#eq? @_type "role"))

; References
[
  (substitution_reference)
  (footnote_reference)
  (citation_reference)
  (reference)
  (role)
] @local.reference