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.
pull/4887/head
Michael Davis 2 years ago committed by Blaž Hrastnik
parent 452f7d071c
commit 5a1bed2b70

@ -65,6 +65,37 @@
(function_capture module: (atom) @namespace) (function_capture module: (atom) @namespace)
(function_capture function: (atom) @function) (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 ; Records
(record_content (record_content
(binary_operator (binary_operator
@ -105,9 +136,6 @@
name: (_) @keyword.directive) name: (_) @keyword.directive)
; Comments ; Comments
((variable) @comment.discard
(#match? @comment.discard "^_"))
(tripledot) @comment.discard (tripledot) @comment.discard
[(comment) (line_comment) (shebang)] @comment [(comment) (line_comment) (shebang)] @comment

@ -0,0 +1,30 @@
; Specs and Callbacks
(attribute
(stab_clause
pattern: (arguments (variable) @local.definition)
; If a spec uses a variable as the return type (and later a `when` clause to type it):
body: (variable)? @local.definition)) @local.scope
; parametric `-type`s
((attribute
name: (atom) @_type
(arguments
(binary_operator
left: (call (arguments (variable) @local.definition))
operator: "::") @local.scope))
(#match? @_type "(type|opaque)"))
; macros
((attribute
name: (atom) @_define
(arguments
(call (arguments (variable) @local.definition)))) @local.scope
(#eq? @_define "define"))
; `fun`s
(anonymous_function (stab_clause pattern: (arguments (variable) @local.definition))) @local.scope
; Ordinary functions
(function_clause pattern: (arguments (variable) @local.definition)) @local.scope
(variable) @local.reference
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