helix-mods/runtime/queries/erlang/highlights.scm
Michael Davis 5a1bed2b70 Add parameter highlights to Erlang
This doesn't work robustly (within pattern matches). Only regular
bindings are highlighted as parameters. In order to highlight all
parameters even in matches, we would need an arbitrary nesting operator
in queries which doesn't exist yet in tree-sitter.
2022-11-24 11:07:05 +09:00

158 lines
3.5 KiB
Scheme

; Attributes
; module declaration
(attribute
name: (atom) @keyword
(arguments (atom) @namespace)
(#match? @keyword "(module|behaviou?r)"))
(attribute
name: (atom) @keyword
(arguments
.
(atom) @namespace)
(#eq? @keyword "import"))
(attribute
name: (atom) @keyword
(arguments
.
[(atom) @type (macro)]
[
(tuple (atom)? @variable.other.member)
(tuple
(binary_operator
left: (atom) @variable.other.member
operator: ["=" "::"]))
(tuple
(binary_operator
left:
(binary_operator
left: (atom) @variable.other.member
operator: "=")
operator: "::"))
])
(#eq? @keyword "record"))
(attribute
name: (atom) @keyword
(arguments
.
[
(atom) @constant
(variable) @constant
(call
function:
[(variable) (atom)] @keyword.directive)
])
(#eq? @keyword "define"))
(attribute
name: (atom) @keyword
(arguments
(_) @keyword.directive)
(#match? @keyword "ifn?def"))
(attribute
name: (atom) @keyword
module: (atom) @namespace
(#match? @keyword "(spec|callback)"))
; Functions
(function_clause name: (atom) @function)
(call module: (atom) @namespace)
(call function: (atom) @function)
(stab_clause name: (atom) @function)
(function_capture module: (atom) @namespace)
(function_capture function: (atom) @function)
; Ignored variables
((variable) @comment.discard
(#match? @comment.discard "^_"))
; Parameters
; specs
((attribute
name: (atom) @keyword
(stab_clause
pattern: (arguments (variable) @variable.parameter)
body: (variable)? @variable.parameter))
(#match? @keyword "(spec|callback)"))
; functions
(function_clause pattern: (arguments (variable) @variable.parameter))
; anonymous functions
(stab_clause pattern: (arguments (variable) @variable.parameter))
; parametric types
((attribute
name: (atom) @keyword
(arguments
(binary_operator
left: (call (arguments (variable) @variable.parameter))
operator: "::")))
(#match? @keyword "(type|opaque)"))
; macros
((attribute
name: (atom) @keyword
(arguments
(call (arguments (variable) @variable.parameter))))
(#eq? @keyword "define"))
; Records
(record_content
(binary_operator
left: (atom) @variable.other.member
operator: "="))
(record field: (atom) @variable.other.member)
(record name: (atom) @type)
; Keywords
(attribute name: (atom) @keyword)
["case" "fun" "if" "of" "when" "end" "receive" "try" "catch" "after" "begin" "maybe"] @keyword
; Operators
(binary_operator
left: (atom) @function
operator: "/"
right: (integer) @constant.numeric.integer)
((binary_operator operator: _ @keyword.operator)
(#match? @keyword.operator "^\\w+$"))
((unary_operator operator: _ @keyword.operator)
(#match? @keyword.operator "^\\w+$"))
(binary_operator operator: _ @operator)
(unary_operator operator: _ @operator)
["/" ":" "->"] @operator
; Macros
(macro
"?"+ @constant
name: (_) @constant
!arguments)
(macro
"?"+ @keyword.directive
name: (_) @keyword.directive)
; Comments
(tripledot) @comment.discard
[(comment) (line_comment) (shebang)] @comment
; Basic types
(variable) @variable
((atom) @constant.builtin.boolean
(#match? @constant.builtin.boolean "^(true|false)$"))
(atom) @string.special.symbol
(string) @string
(character) @constant.character
(integer) @constant.numeric.integer
(float) @constant.numeric.float
; Punctuation
["," "." "-" ";"] @punctuation.delimiter
["(" ")" "#" "{" "}" "[" "]" "<<" ">>"] @punctuation.bracket
; (ERROR) @error