Tree-sitter query language preview

1. Function definition query

node names, field names, and captures

horizon-dark

; match a function definition with a captured name
(function_item
  name: (identifier) @function.name
  parameters: (parameters) @function.params) @function.def

(call_expression
  function: [(identifier) (field_expression)] @call
  !type_arguments)

((identifier) @constant
  (#match? @constant "^[A-Z_]+$"))

(ERROR) @error
_ @any

atom-one-dark

; match a function definition with a captured name
(function_item
  name: (identifier) @function.name
  parameters: (parameters) @function.params) @function.def

(call_expression
  function: [(identifier) (field_expression)] @call
  !type_arguments)

((identifier) @constant
  (#match? @constant "^[A-Z_]+$"))

(ERROR) @error
_ @any

github-dark

; match a function definition with a captured name
(function_item
  name: (identifier) @function.name
  parameters: (parameters) @function.params) @function.def

(call_expression
  function: [(identifier) (field_expression)] @call
  !type_arguments)

((identifier) @constant
  (#match? @constant "^[A-Z_]+$"))

(ERROR) @error
_ @any

dracula

; match a function definition with a captured name
(function_item
  name: (identifier) @function.name
  parameters: (parameters) @function.params) @function.def

(call_expression
  function: [(identifier) (field_expression)] @call
  !type_arguments)

((identifier) @constant
  (#match? @constant "^[A-Z_]+$"))

(ERROR) @error
_ @any

nord

; match a function definition with a captured name
(function_item
  name: (identifier) @function.name
  parameters: (parameters) @function.params) @function.def

(call_expression
  function: [(identifier) (field_expression)] @call
  !type_arguments)

((identifier) @constant
  (#match? @constant "^[A-Z_]+$"))

(ERROR) @error
_ @any

github

; match a function definition with a captured name
(function_item
  name: (identifier) @function.name
  parameters: (parameters) @function.params) @function.def

(call_expression
  function: [(identifier) (field_expression)] @call
  !type_arguments)

((identifier) @constant
  (#match? @constant "^[A-Z_]+$"))

(ERROR) @error
_ @any

2. Predicates

eq?, match?, and any-of? directives

horizon-dark

((identifier) @variable.builtin
  (#any-of? @variable.builtin "self" "this" "super"))

((string) @string.special
  (#not-match? @string.special "^\\s*$"))

atom-one-dark

((identifier) @variable.builtin
  (#any-of? @variable.builtin "self" "this" "super"))

((string) @string.special
  (#not-match? @string.special "^\\s*$"))

github-dark

((identifier) @variable.builtin
  (#any-of? @variable.builtin "self" "this" "super"))

((string) @string.special
  (#not-match? @string.special "^\\s*$"))

dracula

((identifier) @variable.builtin
  (#any-of? @variable.builtin "self" "this" "super"))

((string) @string.special
  (#not-match? @string.special "^\\s*$"))

nord

((identifier) @variable.builtin
  (#any-of? @variable.builtin "self" "this" "super"))

((string) @string.special
  (#not-match? @string.special "^\\s*$"))

github

((identifier) @variable.builtin
  (#any-of? @variable.builtin "self" "this" "super"))

((string) @string.special
  (#not-match? @string.special "^\\s*$"))

3. Anonymous nodes and anchors

quoted terminals and the anchor operator

horizon-dark

(binary_expression
  left: (_) @left
  operator: "+"
  . right: (_) @right)

atom-one-dark

(binary_expression
  left: (_) @left
  operator: "+"
  . right: (_) @right)

github-dark

(binary_expression
  left: (_) @left
  operator: "+"
  . right: (_) @right)

dracula

(binary_expression
  left: (_) @left
  operator: "+"
  . right: (_) @right)

nord

(binary_expression
  left: (_) @left
  operator: "+"
  . right: (_) @right)

github

(binary_expression
  left: (_) @left
  operator: "+"
  . right: (_) @right)