feat(grammar): add field name for operators in expressions (tree-sitter-grammars#59)

Author: digitcrusher

grammar.js

@@ -531,7 +531,7 @@ module.exports = grammar({
             precedence,
             seq(
               field('left', $.expression),
-              operator,
+              field('operator', operator),
               field('right', $.expression)
             )
           )
@@ -544,7 +544,7 @@ module.exports = grammar({
             precedence,
             seq(
               field('left', $.expression),
-              operator,
+              field('operator', operator),
               field('right', $.expression)
             )
           )
@@ -555,7 +555,10 @@ module.exports = grammar({
     unary_expression: ($) =>
       prec.left(
         PREC.UNARY,
-        seq(choice('not', '#', '-', '~'), field('operand', $.expression))
+        seq(
+          field('operator', choice('not', '#', '-', '~')),
+          field('operand', $.expression),
+        )
       ),
 
     // Name

queries/highlights.scm

@@ -74,36 +74,16 @@
 
 ;; Operators
 
+(binary_expression operator: _ @operator)
+
+(unary_expression operator: _ @operator)
+
 [
  "and"
  "not"
  "or"
 ] @keyword.operator
 
-[
-  "+"
-  "-"
-  "*"
-  "/"
-  "%"
-  "^"
-  "#"
-  "=="
-  "~="
-  "<="
-  ">="
-  "<"
-  ">"
-  "="
-  "&"
-  "~"
-  "|"
-  "<<"
-  ">>"
-  "//"
-  ".."
-] @operator
-
 ;; Punctuations
 
 [