graphql: add highlights

queries/graphql/highlights.scm

@@ -0,0 +1,148 @@
+; Types
+;------
+
+(scalar_type_definition
+  (name) @type)
+
+(object_type_definition
+  (name) @type)
+
+(interface_type_definition
+  (name) @type)
+
+(union_type_definition
+  (name) @type)
+
+(enum_type_definition
+  (name) @type)
+
+(input_object_type_definition
+  (name) @type)
+
+(directive_definition
+  (name) @type)
+
+(scalar_type_extension
+  (name) @type)
+
+(object_type_extension
+  (name) @type)
+
+(interface_type_extension
+  (name) @type)
+
+(union_type_extension
+  (name) @type)
+
+(enum_type_extension
+  (name) @type)
+
+(input_object_type_extension
+  (name) @type)
+
+(named_type
+  (name) @type)
+
+(directive) @type
+
+; Properties
+;-----------
+
+(field
+  (name) @property)
+
+(field
+  (alias
+    (name) @property))
+
+(field_definition
+  (name) @property)
+
+(object_value
+  (object_field
+    (name) @property))
+
+; Variable Definitions and Arguments 
+;-----------------------------------
+
+(operation_definition
+  (name) @variable)
+
+(argument
+  (name) @parameter)
+
+(arguments_definition
+  (input_value_definition
+    (name) @parameter))
+
+(variable_definition
+  (variable) @parameter)
+
+(argument
+  (value
+    (variable) @variable))
+
+; Constants
+;----------
+
+(string_value) @string
+
+(int_value) @number
+
+(float_value) @float
+
+(boolean_value) @boolean
+
+; Literals
+;---------
+
+(description) @comment
+
+(directive_location
+  (executable_directive_location) @type.builtin)
+
+(directive_location
+  (type_system_directive_location) @type.builtin)
+
+; Keywords
+;----------
+
+[
+  "query"
+  "mutation"
+  "subscription"
+  "fragment"
+  "scalar"
+  "type"
+  "interface"
+  "union"
+  "enum"
+  "input"
+  "extend"
+  "directive"
+  "schema"
+  "on"
+  "repeatable"
+] @keyword
+
+; Punctuation
+;------------
+
+[
+ "("
+ ")"
+ "["
+ "]"
+ "{"
+ "}"
+] @punctuation.bracket
+
+"=" @operator
+
+"|" @punctuation.delimiter
+"&" @punctuation.delimiter
+":" @punctuation.delimiter
+
+"..." @punctuation.special
+"!" @punctuation.special
+