unified: stop operators bleeding through everywhere

We make _referenceable_operator a named node. This prevents it from
bleeding through to the _expression definition. It likely also makes the
output easier to deal with, as bare operators used as arguments now have
a named node wrapping them in the AST.

Also removes a duplicated inclusion of _comparison_operator that served
no purpose.

unified/extractor/tree-sitter-swift/grammar.js

@@ -105,7 +105,7 @@ module.exports = grammar({
     // `+(...)` is ambigously either "call the function produced by a reference to the operator `+`" or "use the unary
     // operator `+` on the result of the parenthetical expression."
     [$._additive_operator, $._prefix_unary_operator],
-    [$._referenceable_operator, $._prefix_unary_operator],
+    [$.referenceable_operator, $._prefix_unary_operator],
     // `{ [self, b, c] ...` could be a capture list or an array literal depending on what else happens.
     [$.capture_list_item, $._expression],
     [$.capture_list_item, $._expression, $._simple_user_type],
@@ -906,7 +906,7 @@ module.exports = grammar({
         $.super_expression,
         $.try_expression,
         $.await_expression,
-        $._referenceable_operator,
+        $.referenceable_operator,
         $.key_path_expression,
         $.key_path_string_expression,
         prec.right(
@@ -1625,16 +1625,15 @@ module.exports = grammar({
     _non_constructor_function_decl: ($) =>
       seq(
         "func",
-        field("name", choice($.simple_identifier, $._referenceable_operator))
+        field("name", choice($.simple_identifier, $.referenceable_operator))
       ),
-    _referenceable_operator: ($) =>
+    referenceable_operator: ($) =>
       choice(
         $.custom_operator,
         $._comparison_operator,
         $._additive_operator,
         $._multiplicative_operator,
         $._equality_operator,
-        $._comparison_operator,
         $._assignment_and_operator,
         "++",
         "--",
@@ -1806,7 +1805,7 @@ module.exports = grammar({
       seq(
         choice("prefix", "infix", "postfix"),
         "operator",
-        $._referenceable_operator,
+        $.referenceable_operator,
         optional(seq(":", $.simple_identifier)),
         optional($.deprecated_operator_declaration_body)
       ),

unified/extractor/tree-sitter-swift/node-types.yml

@@ -1,23 +1,23 @@
 named:
   _expression:
   additive_expression:
-    lhs: ["!=", "!==", "%", "%=", "&", "*", "*=", "+", "++", "+=", "-", "--", "-=", "/", "/=", "<", "<<", "<=", "=", "==", "===", ">", ">=", ">>", "^", additive_expression, array_literal, as_expression, assignment, await_expression, bang, bin_literal, bitwise_operation, boolean_literal, call_expression, check_expression, comparison_expression, conjunction_expression, constructor_expression, custom_operator, diagnostic, dictionary_literal, directive, disjunction_expression, equality_expression, fully_open_range, hex_literal, if_statement, infix_expression, integer_literal, key_path_expression, key_path_string_expression, lambda_literal, line_string_literal, macro_invocation, multi_line_string_literal, multiplicative_expression, navigation_expression, "nil", nil_coalescing_expression, oct_literal, open_end_range_expression, open_start_range_expression, optional_chain_marker, playground_literal, postfix_expression, prefix_expression, range_expression, raw_string_literal, real_literal, regex_literal, selector_expression, self_expression, simple_identifier, special_literal, super_expression, switch_statement, ternary_expression, try_expression, tuple_expression, value_pack_expansion, value_parameter_pack, "|", "~"]
+    lhs: [additive_expression, array_literal, as_expression, assignment, await_expression, bin_literal, bitwise_operation, boolean_literal, call_expression, check_expression, comparison_expression, conjunction_expression, constructor_expression, diagnostic, dictionary_literal, directive, disjunction_expression, equality_expression, fully_open_range, hex_literal, if_statement, infix_expression, integer_literal, key_path_expression, key_path_string_expression, lambda_literal, line_string_literal, macro_invocation, multi_line_string_literal, multiplicative_expression, navigation_expression, "nil", nil_coalescing_expression, oct_literal, open_end_range_expression, open_start_range_expression, optional_chain_marker, playground_literal, postfix_expression, prefix_expression, range_expression, raw_string_literal, real_literal, referenceable_operator, regex_literal, selector_expression, self_expression, simple_identifier, special_literal, super_expression, switch_statement, ternary_expression, try_expression, tuple_expression, value_pack_expansion, value_parameter_pack]
     op: ["+", "-"]
-    rhs: ["!=", "!==", "%", "%=", "&", "*", "*=", "+", "++", "+=", "-", "--", "-=", "/", "/=", "<", "<<", "<=", "=", "==", "===", ">", ">=", ">>", "^", additive_expression, array_literal, as_expression, assignment, await_expression, bang, bin_literal, bitwise_operation, boolean_literal, call_expression, check_expression, comparison_expression, conjunction_expression, constructor_expression, custom_operator, diagnostic, dictionary_literal, directive, disjunction_expression, equality_expression, fully_open_range, hex_literal, if_statement, infix_expression, integer_literal, key_path_expression, key_path_string_expression, lambda_literal, line_string_literal, macro_invocation, multi_line_string_literal, multiplicative_expression, navigation_expression, "nil", nil_coalescing_expression, oct_literal, open_end_range_expression, open_start_range_expression, optional_chain_marker, playground_literal, postfix_expression, prefix_expression, range_expression, raw_string_literal, real_literal, regex_literal, selector_expression, self_expression, simple_identifier, special_literal, super_expression, switch_statement, ternary_expression, try_expression, tuple_expression, value_pack_expansion, value_parameter_pack, "|", "~"]
+    rhs: [additive_expression, array_literal, as_expression, assignment, await_expression, bin_literal, bitwise_operation, boolean_literal, call_expression, check_expression, comparison_expression, conjunction_expression, constructor_expression, diagnostic, dictionary_literal, directive, disjunction_expression, equality_expression, fully_open_range, hex_literal, if_statement, infix_expression, integer_literal, key_path_expression, key_path_string_expression, lambda_literal, line_string_literal, macro_invocation, multi_line_string_literal, multiplicative_expression, navigation_expression, "nil", nil_coalescing_expression, oct_literal, open_end_range_expression, open_start_range_expression, optional_chain_marker, playground_literal, postfix_expression, prefix_expression, range_expression, raw_string_literal, real_literal, referenceable_operator, regex_literal, selector_expression, self_expression, simple_identifier, special_literal, super_expression, switch_statement, ternary_expression, try_expression, tuple_expression, value_pack_expansion, value_parameter_pack]
   array_literal:
-    element*: ["!=", "!==", "%", "%=", "&", "*", "*=", "+", "++", "+=", "-", "--", "-=", "/", "/=", "<", "<<", "<=", "=", "==", "===", ">", ">=", ">>", "^", additive_expression, array_literal, as_expression, assignment, await_expression, bang, bin_literal, bitwise_operation, boolean_literal, call_expression, check_expression, comparison_expression, conjunction_expression, constructor_expression, custom_operator, diagnostic, dictionary_literal, directive, disjunction_expression, equality_expression, fully_open_range, hex_literal, if_statement, infix_expression, integer_literal, key_path_expression, key_path_string_expression, lambda_literal, line_string_literal, macro_invocation, multi_line_string_literal, multiplicative_expression, navigation_expression, "nil", nil_coalescing_expression, oct_literal, open_end_range_expression, open_start_range_expression, optional_chain_marker, playground_literal, postfix_expression, prefix_expression, range_expression, raw_string_literal, real_literal, regex_literal, selector_expression, self_expression, simple_identifier, special_literal, super_expression, switch_statement, ternary_expression, try_expression, tuple_expression, value_pack_expansion, value_parameter_pack, "|", "~"]
+    element*: [additive_expression, array_literal, as_expression, assignment, await_expression, bin_literal, bitwise_operation, boolean_literal, call_expression, check_expression, comparison_expression, conjunction_expression, constructor_expression, diagnostic, dictionary_literal, directive, disjunction_expression, equality_expression, fully_open_range, hex_literal, if_statement, infix_expression, integer_literal, key_path_expression, key_path_string_expression, lambda_literal, line_string_literal, macro_invocation, multi_line_string_literal, multiplicative_expression, navigation_expression, "nil", nil_coalescing_expression, oct_literal, open_end_range_expression, open_start_range_expression, optional_chain_marker, playground_literal, postfix_expression, prefix_expression, range_expression, raw_string_literal, real_literal, referenceable_operator, regex_literal, selector_expression, self_expression, simple_identifier, special_literal, super_expression, switch_statement, ternary_expression, try_expression, tuple_expression, value_pack_expansion, value_parameter_pack]
   array_type:
     element+: [array_type, dictionary_type, existential_type, function_type, metatype, opaque_type, optional_type, protocol_composition_type, suppressed_constraint, tuple_type, type_modifiers, type_pack_expansion, type_parameter_pack, user_type]
     name: [array_type, dictionary_type, existential_type, function_type, metatype, opaque_type, optional_type, protocol_composition_type, suppressed_constraint, tuple_type, type_pack_expansion, type_parameter_pack, user_type]
   as_expression:
     $children: as_operator
-    expr: ["!=", "!==", "%", "%=", "&", "*", "*=", "+", "++", "+=", "-", "--", "-=", "/", "/=", "<", "<<", "<=", "=", "==", "===", ">", ">=", ">>", "^", additive_expression, array_literal, as_expression, assignment, await_expression, bang, bin_literal, bitwise_operation, boolean_literal, call_expression, check_expression, comparison_expression, conjunction_expression, constructor_expression, custom_operator, diagnostic, dictionary_literal, directive, disjunction_expression, equality_expression, fully_open_range, hex_literal, if_statement, infix_expression, integer_literal, key_path_expression, key_path_string_expression, lambda_literal, line_string_literal, macro_invocation, multi_line_string_literal, multiplicative_expression, navigation_expression, "nil", nil_coalescing_expression, oct_literal, open_end_range_expression, open_start_range_expression, optional_chain_marker, playground_literal, postfix_expression, prefix_expression, range_expression, raw_string_literal, real_literal, regex_literal, selector_expression, self_expression, simple_identifier, special_literal, super_expression, switch_statement, ternary_expression, try_expression, tuple_expression, value_pack_expansion, value_parameter_pack, "|", "~"]
+    expr: [additive_expression, array_literal, as_expression, assignment, await_expression, bin_literal, bitwise_operation, boolean_literal, call_expression, check_expression, comparison_expression, conjunction_expression, constructor_expression, diagnostic, dictionary_literal, directive, disjunction_expression, equality_expression, fully_open_range, hex_literal, if_statement, infix_expression, integer_literal, key_path_expression, key_path_string_expression, lambda_literal, line_string_literal, macro_invocation, multi_line_string_literal, multiplicative_expression, navigation_expression, "nil", nil_coalescing_expression, oct_literal, open_end_range_expression, open_start_range_expression, optional_chain_marker, playground_literal, postfix_expression, prefix_expression, range_expression, raw_string_literal, real_literal, referenceable_operator, regex_literal, selector_expression, self_expression, simple_identifier, special_literal, super_expression, switch_statement, ternary_expression, try_expression, tuple_expression, value_pack_expansion, value_parameter_pack]
     name: [array_type, dictionary_type, existential_type, function_type, metatype, opaque_type, optional_type, protocol_composition_type, suppressed_constraint, tuple_type, type_pack_expansion, type_parameter_pack, user_type]
     type+: [array_type, dictionary_type, existential_type, function_type, metatype, opaque_type, optional_type, protocol_composition_type, suppressed_constraint, tuple_type, type_modifiers, type_pack_expansion, type_parameter_pack, user_type]
   as_operator:
   assignment:
     operator: ["%=", "*=", "+=", "-=", "/=", "="]
-    result: ["!=", "!==", "%", "%=", "&", "*", "*=", "+", "++", "+=", "-", "--", "-=", "/", "/=", "<", "<<", "<=", "=", "==", "===", ">", ">=", ">>", "^", additive_expression, array_literal, as_expression, assignment, await_expression, bang, bin_literal, bitwise_operation, boolean_literal, call_expression, check_expression, comparison_expression, conjunction_expression, constructor_expression, custom_operator, diagnostic, dictionary_literal, directive, disjunction_expression, equality_expression, fully_open_range, hex_literal, if_statement, infix_expression, integer_literal, key_path_expression, key_path_string_expression, lambda_literal, line_string_literal, macro_invocation, multi_line_string_literal, multiplicative_expression, navigation_expression, "nil", nil_coalescing_expression, oct_literal, open_end_range_expression, open_start_range_expression, optional_chain_marker, playground_literal, postfix_expression, prefix_expression, range_expression, raw_string_literal, real_literal, regex_literal, selector_expression, self_expression, simple_identifier, special_literal, super_expression, switch_statement, ternary_expression, try_expression, tuple_expression, value_pack_expansion, value_parameter_pack, "|", "~"]
+    result: [additive_expression, array_literal, as_expression, assignment, await_expression, bin_literal, bitwise_operation, boolean_literal, call_expression, check_expression, comparison_expression, conjunction_expression, constructor_expression, diagnostic, dictionary_literal, directive, disjunction_expression, equality_expression, fully_open_range, hex_literal, if_statement, infix_expression, integer_literal, key_path_expression, key_path_string_expression, lambda_literal, line_string_literal, macro_invocation, multi_line_string_literal, multiplicative_expression, navigation_expression, "nil", nil_coalescing_expression, oct_literal, open_end_range_expression, open_start_range_expression, optional_chain_marker, playground_literal, postfix_expression, prefix_expression, range_expression, raw_string_literal, real_literal, referenceable_operator, regex_literal, selector_expression, self_expression, simple_identifier, special_literal, super_expression, switch_statement, ternary_expression, try_expression, tuple_expression, value_pack_expansion, value_parameter_pack]
     target: directly_assignable_expression
   associatedtype_declaration:
     $children*: [modifiers, type_constraints]
@@ -25,21 +25,21 @@ named:
     must_inherit*: [array_type, dictionary_type, existential_type, function_type, metatype, opaque_type, optional_type, protocol_composition_type, suppressed_constraint, tuple_type, type_modifiers, type_pack_expansion, type_parameter_pack, user_type]
     name+: [array_type, dictionary_type, existential_type, function_type, metatype, opaque_type, optional_type, protocol_composition_type, suppressed_constraint, tuple_type, type_identifier, type_pack_expansion, type_parameter_pack, user_type]
   attribute:
-    $children+: [additive_expression, array_literal, as_expression, assignment, await_expression, bang, bin_literal, bitwise_operation, boolean_literal, call_expression, check_expression, comparison_expression, conjunction_expression, constructor_expression, custom_operator, diagnostic, dictionary_literal, directive, disjunction_expression, equality_expression, fully_open_range, hex_literal, if_statement, infix_expression, integer_literal, key_path_expression, key_path_string_expression, lambda_literal, line_string_literal, macro_invocation, multi_line_string_literal, multiplicative_expression, navigation_expression, nil_coalescing_expression, oct_literal, open_end_range_expression, open_start_range_expression, optional_chain_marker, playground_literal, postfix_expression, prefix_expression, range_expression, raw_string_literal, real_literal, regex_literal, selector_expression, self_expression, simple_identifier, special_literal, super_expression, switch_statement, ternary_expression, try_expression, tuple_expression, user_type, value_pack_expansion, value_parameter_pack]
+    $children+: [additive_expression, array_literal, as_expression, assignment, await_expression, bin_literal, bitwise_operation, boolean_literal, call_expression, check_expression, comparison_expression, conjunction_expression, constructor_expression, diagnostic, dictionary_literal, directive, disjunction_expression, equality_expression, fully_open_range, hex_literal, if_statement, infix_expression, integer_literal, key_path_expression, key_path_string_expression, lambda_literal, line_string_literal, macro_invocation, multi_line_string_literal, multiplicative_expression, navigation_expression, nil_coalescing_expression, oct_literal, open_end_range_expression, open_start_range_expression, optional_chain_marker, playground_literal, postfix_expression, prefix_expression, range_expression, raw_string_literal, real_literal, referenceable_operator, regex_literal, selector_expression, self_expression, simple_identifier, special_literal, super_expression, switch_statement, ternary_expression, try_expression, tuple_expression, user_type, value_pack_expansion, value_parameter_pack]
   availability_condition:
     $children*: [identifier, integer_literal]
   await_expression:
-    $children?: [additive_expression, array_literal, as_expression, assignment, await_expression, bang, bin_literal, bitwise_operation, boolean_literal, call_expression, check_expression, comparison_expression, conjunction_expression, constructor_expression, custom_operator, diagnostic, dictionary_literal, directive, disjunction_expression, equality_expression, fully_open_range, hex_literal, if_statement, infix_expression, integer_literal, key_path_expression, key_path_string_expression, lambda_literal, line_string_literal, macro_invocation, multi_line_string_literal, multiplicative_expression, navigation_expression, nil_coalescing_expression, oct_literal, open_end_range_expression, open_start_range_expression, optional_chain_marker, playground_literal, postfix_expression, prefix_expression, range_expression, raw_string_literal, real_literal, regex_literal, selector_expression, self_expression, simple_identifier, special_literal, super_expression, switch_statement, ternary_expression, try_expression, tuple_expression, value_pack_expansion, value_parameter_pack]
-    expr?: ["!=", "!==", "%", "%=", "&", "*", "*=", "+", "++", "+=", "-", "--", "-=", "/", "/=", "<", "<<", "<=", "=", "==", "===", ">", ">=", ">>", "^", additive_expression, array_literal, as_expression, assignment, await_expression, bang, bin_literal, bitwise_operation, boolean_literal, call_expression, check_expression, comparison_expression, conjunction_expression, constructor_expression, custom_operator, diagnostic, dictionary_literal, directive, disjunction_expression, equality_expression, fully_open_range, hex_literal, if_statement, infix_expression, integer_literal, key_path_expression, key_path_string_expression, lambda_literal, line_string_literal, macro_invocation, multi_line_string_literal, multiplicative_expression, navigation_expression, "nil", nil_coalescing_expression, oct_literal, open_end_range_expression, open_start_range_expression, optional_chain_marker, playground_literal, postfix_expression, prefix_expression, range_expression, raw_string_literal, real_literal, regex_literal, selector_expression, self_expression, simple_identifier, special_literal, super_expression, switch_statement, ternary_expression, try_expression, tuple_expression, value_pack_expansion, value_parameter_pack, "|", "~"]
+    $children?: [additive_expression, array_literal, as_expression, assignment, await_expression, bin_literal, bitwise_operation, boolean_literal, call_expression, check_expression, comparison_expression, conjunction_expression, constructor_expression, diagnostic, dictionary_literal, directive, disjunction_expression, equality_expression, fully_open_range, hex_literal, if_statement, infix_expression, integer_literal, key_path_expression, key_path_string_expression, lambda_literal, line_string_literal, macro_invocation, multi_line_string_literal, multiplicative_expression, navigation_expression, nil_coalescing_expression, oct_literal, open_end_range_expression, open_start_range_expression, optional_chain_marker, playground_literal, postfix_expression, prefix_expression, range_expression, raw_string_literal, real_literal, referenceable_operator, regex_literal, selector_expression, self_expression, simple_identifier, special_literal, super_expression, switch_statement, ternary_expression, try_expression, tuple_expression, value_pack_expansion, value_parameter_pack]
+    expr?: [additive_expression, array_literal, as_expression, assignment, await_expression, bin_literal, bitwise_operation, boolean_literal, call_expression, check_expression, comparison_expression, conjunction_expression, constructor_expression, diagnostic, dictionary_literal, directive, disjunction_expression, equality_expression, fully_open_range, hex_literal, if_statement, infix_expression, integer_literal, key_path_expression, key_path_string_expression, lambda_literal, line_string_literal, macro_invocation, multi_line_string_literal, multiplicative_expression, navigation_expression, "nil", nil_coalescing_expression, oct_literal, open_end_range_expression, open_start_range_expression, optional_chain_marker, playground_literal, postfix_expression, prefix_expression, range_expression, raw_string_literal, real_literal, referenceable_operator, regex_literal, selector_expression, self_expression, simple_identifier, special_literal, super_expression, switch_statement, ternary_expression, try_expression, tuple_expression, value_pack_expansion, value_parameter_pack]
   bang:
   bin_literal:
   bitwise_operation:
-    lhs: ["!=", "!==", "%", "%=", "&", "*", "*=", "+", "++", "+=", "-", "--", "-=", "/", "/=", "<", "<<", "<=", "=", "==", "===", ">", ">=", ">>", "^", additive_expression, array_literal, as_expression, assignment, await_expression, bang, bin_literal, bitwise_operation, boolean_literal, call_expression, check_expression, comparison_expression, conjunction_expression, constructor_expression, custom_operator, diagnostic, dictionary_literal, directive, disjunction_expression, equality_expression, fully_open_range, hex_literal, if_statement, infix_expression, integer_literal, key_path_expression, key_path_string_expression, lambda_literal, line_string_literal, macro_invocation, multi_line_string_literal, multiplicative_expression, navigation_expression, "nil", nil_coalescing_expression, oct_literal, open_end_range_expression, open_start_range_expression, optional_chain_marker, playground_literal, postfix_expression, prefix_expression, range_expression, raw_string_literal, real_literal, regex_literal, selector_expression, self_expression, simple_identifier, special_literal, super_expression, switch_statement, ternary_expression, try_expression, tuple_expression, value_pack_expansion, value_parameter_pack, "|", "~"]
+    lhs: [additive_expression, array_literal, as_expression, assignment, await_expression, bin_literal, bitwise_operation, boolean_literal, call_expression, check_expression, comparison_expression, conjunction_expression, constructor_expression, diagnostic, dictionary_literal, directive, disjunction_expression, equality_expression, fully_open_range, hex_literal, if_statement, infix_expression, integer_literal, key_path_expression, key_path_string_expression, lambda_literal, line_string_literal, macro_invocation, multi_line_string_literal, multiplicative_expression, navigation_expression, "nil", nil_coalescing_expression, oct_literal, open_end_range_expression, open_start_range_expression, optional_chain_marker, playground_literal, postfix_expression, prefix_expression, range_expression, raw_string_literal, real_literal, referenceable_operator, regex_literal, selector_expression, self_expression, simple_identifier, special_literal, super_expression, switch_statement, ternary_expression, try_expression, tuple_expression, value_pack_expansion, value_parameter_pack]
     op: ["&", "<<", ">>", "^", "|"]
-    rhs: ["!=", "!==", "%", "%=", "&", "*", "*=", "+", "++", "+=", "-", "--", "-=", "/", "/=", "<", "<<", "<=", "=", "==", "===", ">", ">=", ">>", "^", additive_expression, array_literal, as_expression, assignment, await_expression, bang, bin_literal, bitwise_operation, boolean_literal, call_expression, check_expression, comparison_expression, conjunction_expression, constructor_expression, custom_operator, diagnostic, dictionary_literal, directive, disjunction_expression, equality_expression, fully_open_range, hex_literal, if_statement, infix_expression, integer_literal, key_path_expression, key_path_string_expression, lambda_literal, line_string_literal, macro_invocation, multi_line_string_literal, multiplicative_expression, navigation_expression, "nil", nil_coalescing_expression, oct_literal, open_end_range_expression, open_start_range_expression, optional_chain_marker, playground_literal, postfix_expression, prefix_expression, range_expression, raw_string_literal, real_literal, regex_literal, selector_expression, self_expression, simple_identifier, special_literal, super_expression, switch_statement, ternary_expression, try_expression, tuple_expression, value_pack_expansion, value_parameter_pack, "|", "~"]
+    rhs: [additive_expression, array_literal, as_expression, assignment, await_expression, bin_literal, bitwise_operation, boolean_literal, call_expression, check_expression, comparison_expression, conjunction_expression, constructor_expression, diagnostic, dictionary_literal, directive, disjunction_expression, equality_expression, fully_open_range, hex_literal, if_statement, infix_expression, integer_literal, key_path_expression, key_path_string_expression, lambda_literal, line_string_literal, macro_invocation, multi_line_string_literal, multiplicative_expression, navigation_expression, "nil", nil_coalescing_expression, oct_literal, open_end_range_expression, open_start_range_expression, optional_chain_marker, playground_literal, postfix_expression, prefix_expression, range_expression, raw_string_literal, real_literal, referenceable_operator, regex_literal, selector_expression, self_expression, simple_identifier, special_literal, super_expression, switch_statement, ternary_expression, try_expression, tuple_expression, value_pack_expansion, value_parameter_pack]
   boolean_literal:
   call_expression:
-    $children+: [additive_expression, array_literal, as_expression, assignment, await_expression, bang, bin_literal, bitwise_operation, boolean_literal, call_expression, call_suffix, check_expression, comparison_expression, conjunction_expression, constructor_expression, custom_operator, diagnostic, dictionary_literal, directive, disjunction_expression, equality_expression, fully_open_range, hex_literal, if_statement, infix_expression, integer_literal, key_path_expression, key_path_string_expression, lambda_literal, line_string_literal, macro_invocation, multi_line_string_literal, multiplicative_expression, navigation_expression, nil_coalescing_expression, oct_literal, open_end_range_expression, open_start_range_expression, optional_chain_marker, playground_literal, postfix_expression, prefix_expression, range_expression, raw_string_literal, real_literal, regex_literal, selector_expression, self_expression, simple_identifier, special_literal, super_expression, switch_statement, ternary_expression, try_expression, tuple_expression, value_pack_expansion, value_parameter_pack]
+    $children+: [additive_expression, array_literal, as_expression, assignment, await_expression, bin_literal, bitwise_operation, boolean_literal, call_expression, call_suffix, check_expression, comparison_expression, conjunction_expression, constructor_expression, diagnostic, dictionary_literal, directive, disjunction_expression, equality_expression, fully_open_range, hex_literal, if_statement, infix_expression, integer_literal, key_path_expression, key_path_string_expression, lambda_literal, line_string_literal, macro_invocation, multi_line_string_literal, multiplicative_expression, navigation_expression, nil_coalescing_expression, oct_literal, open_end_range_expression, open_start_range_expression, optional_chain_marker, playground_literal, postfix_expression, prefix_expression, range_expression, raw_string_literal, real_literal, referenceable_operator, regex_literal, selector_expression, self_expression, simple_identifier, special_literal, super_expression, switch_statement, ternary_expression, try_expression, tuple_expression, value_pack_expansion, value_parameter_pack]
   call_suffix:
     $children+: [lambda_literal, value_arguments]
     name*: simple_identifier
@@ -48,7 +48,7 @@ named:
   capture_list_item:
     $children?: ownership_modifier
     name: [self_expression, simple_identifier]
-    value?: ["!=", "!==", "%", "%=", "&", "*", "*=", "+", "++", "+=", "-", "--", "-=", "/", "/=", "<", "<<", "<=", "=", "==", "===", ">", ">=", ">>", "^", additive_expression, array_literal, as_expression, assignment, await_expression, bang, bin_literal, bitwise_operation, boolean_literal, call_expression, check_expression, comparison_expression, conjunction_expression, constructor_expression, custom_operator, diagnostic, dictionary_literal, directive, disjunction_expression, equality_expression, fully_open_range, hex_literal, if_statement, infix_expression, integer_literal, key_path_expression, key_path_string_expression, lambda_literal, line_string_literal, macro_invocation, multi_line_string_literal, multiplicative_expression, navigation_expression, "nil", nil_coalescing_expression, oct_literal, open_end_range_expression, open_start_range_expression, optional_chain_marker, playground_literal, postfix_expression, prefix_expression, range_expression, raw_string_literal, real_literal, regex_literal, selector_expression, self_expression, simple_identifier, special_literal, super_expression, switch_statement, ternary_expression, try_expression, tuple_expression, value_pack_expansion, value_parameter_pack, "|", "~"]
+    value?: [additive_expression, array_literal, as_expression, assignment, await_expression, bin_literal, bitwise_operation, boolean_literal, call_expression, check_expression, comparison_expression, conjunction_expression, constructor_expression, diagnostic, dictionary_literal, directive, disjunction_expression, equality_expression, fully_open_range, hex_literal, if_statement, infix_expression, integer_literal, key_path_expression, key_path_string_expression, lambda_literal, line_string_literal, macro_invocation, multi_line_string_literal, multiplicative_expression, navigation_expression, "nil", nil_coalescing_expression, oct_literal, open_end_range_expression, open_start_range_expression, optional_chain_marker, playground_literal, postfix_expression, prefix_expression, range_expression, raw_string_literal, real_literal, referenceable_operator, regex_literal, selector_expression, self_expression, simple_identifier, special_literal, super_expression, switch_statement, ternary_expression, try_expression, tuple_expression, value_pack_expansion, value_parameter_pack]
   catch_block:
     $children+: [catch_keyword, statements, where_clause]
     error?: pattern
@@ -56,7 +56,7 @@ named:
   check_expression:
     name: [array_type, dictionary_type, existential_type, function_type, metatype, opaque_type, optional_type, protocol_composition_type, suppressed_constraint, tuple_type, type_pack_expansion, type_parameter_pack, user_type]
     op: "is"
-    target: ["!=", "!==", "%", "%=", "&", "*", "*=", "+", "++", "+=", "-", "--", "-=", "/", "/=", "<", "<<", "<=", "=", "==", "===", ">", ">=", ">>", "^", additive_expression, array_literal, as_expression, assignment, await_expression, bang, bin_literal, bitwise_operation, boolean_literal, call_expression, check_expression, comparison_expression, conjunction_expression, constructor_expression, custom_operator, diagnostic, dictionary_literal, directive, disjunction_expression, equality_expression, fully_open_range, hex_literal, if_statement, infix_expression, integer_literal, key_path_expression, key_path_string_expression, lambda_literal, line_string_literal, macro_invocation, multi_line_string_literal, multiplicative_expression, navigation_expression, "nil", nil_coalescing_expression, oct_literal, open_end_range_expression, open_start_range_expression, optional_chain_marker, playground_literal, postfix_expression, prefix_expression, range_expression, raw_string_literal, real_literal, regex_literal, selector_expression, self_expression, simple_identifier, special_literal, super_expression, switch_statement, ternary_expression, try_expression, tuple_expression, value_pack_expansion, value_parameter_pack, "|", "~"]
+    target: [additive_expression, array_literal, as_expression, assignment, await_expression, bin_literal, bitwise_operation, boolean_literal, call_expression, check_expression, comparison_expression, conjunction_expression, constructor_expression, diagnostic, dictionary_literal, directive, disjunction_expression, equality_expression, fully_open_range, hex_literal, if_statement, infix_expression, integer_literal, key_path_expression, key_path_string_expression, lambda_literal, line_string_literal, macro_invocation, multi_line_string_literal, multiplicative_expression, navigation_expression, "nil", nil_coalescing_expression, oct_literal, open_end_range_expression, open_start_range_expression, optional_chain_marker, playground_literal, postfix_expression, prefix_expression, range_expression, raw_string_literal, real_literal, referenceable_operator, regex_literal, selector_expression, self_expression, simple_identifier, special_literal, super_expression, switch_statement, ternary_expression, try_expression, tuple_expression, value_pack_expansion, value_parameter_pack]
     type+: [array_type, dictionary_type, existential_type, function_type, metatype, opaque_type, optional_type, protocol_composition_type, suppressed_constraint, tuple_type, type_modifiers, type_pack_expansion, type_parameter_pack, user_type]
   class_body:
     $children*: [associatedtype_declaration, class_declaration, deinit_declaration, function_declaration, import_declaration, init_declaration, multiline_comment, operator_declaration, precedence_group_declaration, property_declaration, protocol_declaration, subscript_declaration, typealias_declaration]
@@ -67,9 +67,9 @@ named:
     name: [array_type, dictionary_type, existential_type, function_type, metatype, opaque_type, optional_type, protocol_composition_type, suppressed_constraint, tuple_type, type_identifier, type_pack_expansion, type_parameter_pack, user_type]
   comment:
   comparison_expression:
-    lhs: ["!=", "!==", "%", "%=", "&", "*", "*=", "+", "++", "+=", "-", "--", "-=", "/", "/=", "<", "<<", "<=", "=", "==", "===", ">", ">=", ">>", "^", additive_expression, array_literal, as_expression, assignment, await_expression, bang, bin_literal, bitwise_operation, boolean_literal, call_expression, check_expression, comparison_expression, conjunction_expression, constructor_expression, custom_operator, diagnostic, dictionary_literal, directive, disjunction_expression, equality_expression, fully_open_range, hex_literal, if_statement, infix_expression, integer_literal, key_path_expression, key_path_string_expression, lambda_literal, line_string_literal, macro_invocation, multi_line_string_literal, multiplicative_expression, navigation_expression, "nil", nil_coalescing_expression, oct_literal, open_end_range_expression, open_start_range_expression, optional_chain_marker, playground_literal, postfix_expression, prefix_expression, range_expression, raw_string_literal, real_literal, regex_literal, selector_expression, self_expression, simple_identifier, special_literal, super_expression, switch_statement, ternary_expression, try_expression, tuple_expression, value_pack_expansion, value_parameter_pack, "|", "~"]
+    lhs: [additive_expression, array_literal, as_expression, assignment, await_expression, bin_literal, bitwise_operation, boolean_literal, call_expression, check_expression, comparison_expression, conjunction_expression, constructor_expression, diagnostic, dictionary_literal, directive, disjunction_expression, equality_expression, fully_open_range, hex_literal, if_statement, infix_expression, integer_literal, key_path_expression, key_path_string_expression, lambda_literal, line_string_literal, macro_invocation, multi_line_string_literal, multiplicative_expression, navigation_expression, "nil", nil_coalescing_expression, oct_literal, open_end_range_expression, open_start_range_expression, optional_chain_marker, playground_literal, postfix_expression, prefix_expression, range_expression, raw_string_literal, real_literal, referenceable_operator, regex_literal, selector_expression, self_expression, simple_identifier, special_literal, super_expression, switch_statement, ternary_expression, try_expression, tuple_expression, value_pack_expansion, value_parameter_pack]
     op: ["<", "<=", ">", ">="]
-    rhs: ["!=", "!==", "%", "%=", "&", "*", "*=", "+", "++", "+=", "-", "--", "-=", "/", "/=", "<", "<<", "<=", "=", "==", "===", ">", ">=", ">>", "^", additive_expression, array_literal, as_expression, assignment, await_expression, bang, bin_literal, bitwise_operation, boolean_literal, call_expression, check_expression, comparison_expression, conjunction_expression, constructor_expression, custom_operator, diagnostic, dictionary_literal, directive, disjunction_expression, equality_expression, fully_open_range, hex_literal, if_statement, infix_expression, integer_literal, key_path_expression, key_path_string_expression, lambda_literal, line_string_literal, macro_invocation, multi_line_string_literal, multiplicative_expression, navigation_expression, "nil", nil_coalescing_expression, oct_literal, open_end_range_expression, open_start_range_expression, optional_chain_marker, playground_literal, postfix_expression, prefix_expression, range_expression, raw_string_literal, real_literal, regex_literal, selector_expression, self_expression, simple_identifier, special_literal, super_expression, switch_statement, ternary_expression, try_expression, tuple_expression, value_pack_expansion, value_parameter_pack, "|", "~"]
+    rhs: [additive_expression, array_literal, as_expression, assignment, await_expression, bin_literal, bitwise_operation, boolean_literal, call_expression, check_expression, comparison_expression, conjunction_expression, constructor_expression, diagnostic, dictionary_literal, directive, disjunction_expression, equality_expression, fully_open_range, hex_literal, if_statement, infix_expression, integer_literal, key_path_expression, key_path_string_expression, lambda_literal, line_string_literal, macro_invocation, multi_line_string_literal, multiplicative_expression, navigation_expression, "nil", nil_coalescing_expression, oct_literal, open_end_range_expression, open_start_range_expression, optional_chain_marker, playground_literal, postfix_expression, prefix_expression, range_expression, raw_string_literal, real_literal, referenceable_operator, regex_literal, selector_expression, self_expression, simple_identifier, special_literal, super_expression, switch_statement, ternary_expression, try_expression, tuple_expression, value_pack_expansion, value_parameter_pack]
   computed_getter:
     $children+: [attribute, getter_specifier, statements]
   computed_modify:
@@ -79,9 +79,9 @@ named:
   computed_setter:
     $children+: [attribute, setter_specifier, simple_identifier, statements]
   conjunction_expression:
-    lhs: ["!=", "!==", "%", "%=", "&", "*", "*=", "+", "++", "+=", "-", "--", "-=", "/", "/=", "<", "<<", "<=", "=", "==", "===", ">", ">=", ">>", "^", additive_expression, array_literal, as_expression, assignment, await_expression, bang, bin_literal, bitwise_operation, boolean_literal, call_expression, check_expression, comparison_expression, conjunction_expression, constructor_expression, custom_operator, diagnostic, dictionary_literal, directive, disjunction_expression, equality_expression, fully_open_range, hex_literal, if_statement, infix_expression, integer_literal, key_path_expression, key_path_string_expression, lambda_literal, line_string_literal, macro_invocation, multi_line_string_literal, multiplicative_expression, navigation_expression, "nil", nil_coalescing_expression, oct_literal, open_end_range_expression, open_start_range_expression, optional_chain_marker, playground_literal, postfix_expression, prefix_expression, range_expression, raw_string_literal, real_literal, regex_literal, selector_expression, self_expression, simple_identifier, special_literal, super_expression, switch_statement, ternary_expression, try_expression, tuple_expression, value_pack_expansion, value_parameter_pack, "|", "~"]
+    lhs: [additive_expression, array_literal, as_expression, assignment, await_expression, bin_literal, bitwise_operation, boolean_literal, call_expression, check_expression, comparison_expression, conjunction_expression, constructor_expression, diagnostic, dictionary_literal, directive, disjunction_expression, equality_expression, fully_open_range, hex_literal, if_statement, infix_expression, integer_literal, key_path_expression, key_path_string_expression, lambda_literal, line_string_literal, macro_invocation, multi_line_string_literal, multiplicative_expression, navigation_expression, "nil", nil_coalescing_expression, oct_literal, open_end_range_expression, open_start_range_expression, optional_chain_marker, playground_literal, postfix_expression, prefix_expression, range_expression, raw_string_literal, real_literal, referenceable_operator, regex_literal, selector_expression, self_expression, simple_identifier, special_literal, super_expression, switch_statement, ternary_expression, try_expression, tuple_expression, value_pack_expansion, value_parameter_pack]
     op: "&&"
-    rhs: ["!=", "!==", "%", "%=", "&", "*", "*=", "+", "++", "+=", "-", "--", "-=", "/", "/=", "<", "<<", "<=", "=", "==", "===", ">", ">=", ">>", "^", additive_expression, array_literal, as_expression, assignment, await_expression, bang, bin_literal, bitwise_operation, boolean_literal, call_expression, check_expression, comparison_expression, conjunction_expression, constructor_expression, custom_operator, diagnostic, dictionary_literal, directive, disjunction_expression, equality_expression, fully_open_range, hex_literal, if_statement, infix_expression, integer_literal, key_path_expression, key_path_string_expression, lambda_literal, line_string_literal, macro_invocation, multi_line_string_literal, multiplicative_expression, navigation_expression, "nil", nil_coalescing_expression, oct_literal, open_end_range_expression, open_start_range_expression, optional_chain_marker, playground_literal, postfix_expression, prefix_expression, range_expression, raw_string_literal, real_literal, regex_literal, selector_expression, self_expression, simple_identifier, special_literal, super_expression, switch_statement, ternary_expression, try_expression, tuple_expression, value_pack_expansion, value_parameter_pack, "|", "~"]
+    rhs: [additive_expression, array_literal, as_expression, assignment, await_expression, bin_literal, bitwise_operation, boolean_literal, call_expression, check_expression, comparison_expression, conjunction_expression, constructor_expression, diagnostic, dictionary_literal, directive, disjunction_expression, equality_expression, fully_open_range, hex_literal, if_statement, infix_expression, integer_literal, key_path_expression, key_path_string_expression, lambda_literal, line_string_literal, macro_invocation, multi_line_string_literal, multiplicative_expression, navigation_expression, "nil", nil_coalescing_expression, oct_literal, open_end_range_expression, open_start_range_expression, optional_chain_marker, playground_literal, postfix_expression, prefix_expression, range_expression, raw_string_literal, real_literal, referenceable_operator, regex_literal, selector_expression, self_expression, simple_identifier, special_literal, super_expression, switch_statement, ternary_expression, try_expression, tuple_expression, value_pack_expansion, value_parameter_pack]
   constructor_expression:
     $children: constructor_suffix
     constructed_type: [array_type, dictionary_type, user_type]
@@ -89,8 +89,8 @@ named:
     $children+: [lambda_literal, value_arguments]
     name*: simple_identifier
   control_transfer_statement:
-    $children*: [additive_expression, array_literal, as_expression, assignment, await_expression, bang, bin_literal, bitwise_operation, boolean_literal, call_expression, check_expression, comparison_expression, conjunction_expression, constructor_expression, custom_operator, diagnostic, dictionary_literal, directive, disjunction_expression, equality_expression, fully_open_range, hex_literal, if_statement, infix_expression, integer_literal, key_path_expression, key_path_string_expression, lambda_literal, line_string_literal, macro_invocation, multi_line_string_literal, multiplicative_expression, navigation_expression, nil_coalescing_expression, oct_literal, open_end_range_expression, open_start_range_expression, optional_chain_marker, playground_literal, postfix_expression, prefix_expression, range_expression, raw_string_literal, real_literal, regex_literal, selector_expression, self_expression, simple_identifier, special_literal, super_expression, switch_statement, ternary_expression, throw_keyword, try_expression, tuple_expression, value_pack_expansion, value_parameter_pack]
-    result?: ["!=", "!==", "%", "%=", "&", "*", "*=", "+", "++", "+=", "-", "--", "-=", "/", "/=", "<", "<<", "<=", "=", "==", "===", ">", ">=", ">>", "^", additive_expression, array_literal, as_expression, assignment, await_expression, bang, bin_literal, bitwise_operation, boolean_literal, call_expression, check_expression, comparison_expression, conjunction_expression, constructor_expression, custom_operator, diagnostic, dictionary_literal, directive, disjunction_expression, equality_expression, fully_open_range, hex_literal, if_statement, infix_expression, integer_literal, key_path_expression, key_path_string_expression, lambda_literal, line_string_literal, macro_invocation, multi_line_string_literal, multiplicative_expression, navigation_expression, "nil", nil_coalescing_expression, oct_literal, open_end_range_expression, open_start_range_expression, optional_chain_marker, playground_literal, postfix_expression, prefix_expression, range_expression, raw_string_literal, real_literal, regex_literal, selector_expression, self_expression, simple_identifier, special_literal, super_expression, switch_statement, ternary_expression, try_expression, tuple_expression, value_pack_expansion, value_parameter_pack, "|", "~"]
+    $children*: [additive_expression, array_literal, as_expression, assignment, await_expression, bin_literal, bitwise_operation, boolean_literal, call_expression, check_expression, comparison_expression, conjunction_expression, constructor_expression, diagnostic, dictionary_literal, directive, disjunction_expression, equality_expression, fully_open_range, hex_literal, if_statement, infix_expression, integer_literal, key_path_expression, key_path_string_expression, lambda_literal, line_string_literal, macro_invocation, multi_line_string_literal, multiplicative_expression, navigation_expression, nil_coalescing_expression, oct_literal, open_end_range_expression, open_start_range_expression, optional_chain_marker, playground_literal, postfix_expression, prefix_expression, range_expression, raw_string_literal, real_literal, referenceable_operator, regex_literal, selector_expression, self_expression, simple_identifier, special_literal, super_expression, switch_statement, ternary_expression, throw_keyword, try_expression, tuple_expression, value_pack_expansion, value_parameter_pack]
+    result?: [additive_expression, array_literal, as_expression, assignment, await_expression, bin_literal, bitwise_operation, boolean_literal, call_expression, check_expression, comparison_expression, conjunction_expression, constructor_expression, diagnostic, dictionary_literal, directive, disjunction_expression, equality_expression, fully_open_range, hex_literal, if_statement, infix_expression, integer_literal, key_path_expression, key_path_string_expression, lambda_literal, line_string_literal, macro_invocation, multi_line_string_literal, multiplicative_expression, navigation_expression, "nil", nil_coalescing_expression, oct_literal, open_end_range_expression, open_start_range_expression, optional_chain_marker, playground_literal, postfix_expression, prefix_expression, range_expression, raw_string_literal, real_literal, referenceable_operator, regex_literal, selector_expression, self_expression, simple_identifier, special_literal, super_expression, switch_statement, ternary_expression, try_expression, tuple_expression, value_pack_expansion, value_parameter_pack]
   custom_operator:
   default_keyword:
   deinit_declaration:
@@ -100,8 +100,8 @@ named:
     $children*: [bin_literal, boolean_literal, hex_literal, integer_literal, line_string_literal, multi_line_string_literal, oct_literal, raw_string_literal, real_literal, regex_literal, simple_identifier]
   diagnostic:
   dictionary_literal:
-    key*: ["!=", "!==", "%", "%=", "&", "*", "*=", "+", "++", "+=", "-", "--", "-=", "/", "/=", "<", "<<", "<=", "=", "==", "===", ">", ">=", ">>", "^", additive_expression, array_literal, as_expression, assignment, await_expression, bang, bin_literal, bitwise_operation, boolean_literal, call_expression, check_expression, comparison_expression, conjunction_expression, constructor_expression, custom_operator, diagnostic, dictionary_literal, directive, disjunction_expression, equality_expression, fully_open_range, hex_literal, if_statement, infix_expression, integer_literal, key_path_expression, key_path_string_expression, lambda_literal, line_string_literal, macro_invocation, multi_line_string_literal, multiplicative_expression, navigation_expression, "nil", nil_coalescing_expression, oct_literal, open_end_range_expression, open_start_range_expression, optional_chain_marker, playground_literal, postfix_expression, prefix_expression, range_expression, raw_string_literal, real_literal, regex_literal, selector_expression, self_expression, simple_identifier, special_literal, super_expression, switch_statement, ternary_expression, try_expression, tuple_expression, value_pack_expansion, value_parameter_pack, "|", "~"]
-    value*: ["!=", "!==", "%", "%=", "&", "*", "*=", "+", "++", "+=", "-", "--", "-=", "/", "/=", "<", "<<", "<=", "=", "==", "===", ">", ">=", ">>", "^", additive_expression, array_literal, as_expression, assignment, await_expression, bang, bin_literal, bitwise_operation, boolean_literal, call_expression, check_expression, comparison_expression, conjunction_expression, constructor_expression, custom_operator, diagnostic, dictionary_literal, directive, disjunction_expression, equality_expression, fully_open_range, hex_literal, if_statement, infix_expression, integer_literal, key_path_expression, key_path_string_expression, lambda_literal, line_string_literal, macro_invocation, multi_line_string_literal, multiplicative_expression, navigation_expression, "nil", nil_coalescing_expression, oct_literal, open_end_range_expression, open_start_range_expression, optional_chain_marker, playground_literal, postfix_expression, prefix_expression, range_expression, raw_string_literal, real_literal, regex_literal, selector_expression, self_expression, simple_identifier, special_literal, super_expression, switch_statement, ternary_expression, try_expression, tuple_expression, value_pack_expansion, value_parameter_pack, "|", "~"]
+    key*: [additive_expression, array_literal, as_expression, assignment, await_expression, bin_literal, bitwise_operation, boolean_literal, call_expression, check_expression, comparison_expression, conjunction_expression, constructor_expression, diagnostic, dictionary_literal, directive, disjunction_expression, equality_expression, fully_open_range, hex_literal, if_statement, infix_expression, integer_literal, key_path_expression, key_path_string_expression, lambda_literal, line_string_literal, macro_invocation, multi_line_string_literal, multiplicative_expression, navigation_expression, "nil", nil_coalescing_expression, oct_literal, open_end_range_expression, open_start_range_expression, optional_chain_marker, playground_literal, postfix_expression, prefix_expression, range_expression, raw_string_literal, real_literal, referenceable_operator, regex_literal, selector_expression, self_expression, simple_identifier, special_literal, super_expression, switch_statement, ternary_expression, try_expression, tuple_expression, value_pack_expansion, value_parameter_pack]
+    value*: [additive_expression, array_literal, as_expression, assignment, await_expression, bin_literal, bitwise_operation, boolean_literal, call_expression, check_expression, comparison_expression, conjunction_expression, constructor_expression, diagnostic, dictionary_literal, directive, disjunction_expression, equality_expression, fully_open_range, hex_literal, if_statement, infix_expression, integer_literal, key_path_expression, key_path_string_expression, lambda_literal, line_string_literal, macro_invocation, multi_line_string_literal, multiplicative_expression, navigation_expression, "nil", nil_coalescing_expression, oct_literal, open_end_range_expression, open_start_range_expression, optional_chain_marker, playground_literal, postfix_expression, prefix_expression, range_expression, raw_string_literal, real_literal, referenceable_operator, regex_literal, selector_expression, self_expression, simple_identifier, special_literal, super_expression, switch_statement, ternary_expression, try_expression, tuple_expression, value_pack_expansion, value_parameter_pack]
   dictionary_type:
     key+: [array_type, dictionary_type, existential_type, function_type, metatype, opaque_type, optional_type, protocol_composition_type, suppressed_constraint, tuple_type, type_modifiers, type_pack_expansion, type_parameter_pack, user_type]
     name+: [array_type, dictionary_type, existential_type, function_type, metatype, opaque_type, optional_type, protocol_composition_type, suppressed_constraint, tuple_type, type_pack_expansion, type_parameter_pack, user_type]
@@ -111,11 +111,11 @@ named:
   directive:
     $children*: [boolean_literal, integer_literal, simple_identifier]
   directly_assignable_expression:
-    $children?: [additive_expression, array_literal, as_expression, assignment, await_expression, bang, bin_literal, bitwise_operation, boolean_literal, call_expression, check_expression, comparison_expression, conjunction_expression, constructor_expression, custom_operator, diagnostic, dictionary_literal, directive, disjunction_expression, equality_expression, fully_open_range, hex_literal, if_statement, infix_expression, integer_literal, key_path_expression, key_path_string_expression, lambda_literal, line_string_literal, macro_invocation, multi_line_string_literal, multiplicative_expression, navigation_expression, nil_coalescing_expression, oct_literal, open_end_range_expression, open_start_range_expression, optional_chain_marker, playground_literal, postfix_expression, prefix_expression, range_expression, raw_string_literal, real_literal, regex_literal, selector_expression, self_expression, simple_identifier, special_literal, super_expression, switch_statement, ternary_expression, try_expression, tuple_expression, value_pack_expansion, value_parameter_pack]
+    $children?: [additive_expression, array_literal, as_expression, assignment, await_expression, bin_literal, bitwise_operation, boolean_literal, call_expression, check_expression, comparison_expression, conjunction_expression, constructor_expression, diagnostic, dictionary_literal, directive, disjunction_expression, equality_expression, fully_open_range, hex_literal, if_statement, infix_expression, integer_literal, key_path_expression, key_path_string_expression, lambda_literal, line_string_literal, macro_invocation, multi_line_string_literal, multiplicative_expression, navigation_expression, nil_coalescing_expression, oct_literal, open_end_range_expression, open_start_range_expression, optional_chain_marker, playground_literal, postfix_expression, prefix_expression, range_expression, raw_string_literal, real_literal, referenceable_operator, regex_literal, selector_expression, self_expression, simple_identifier, special_literal, super_expression, switch_statement, ternary_expression, try_expression, tuple_expression, value_pack_expansion, value_parameter_pack]
   disjunction_expression:
-    lhs: ["!=", "!==", "%", "%=", "&", "*", "*=", "+", "++", "+=", "-", "--", "-=", "/", "/=", "<", "<<", "<=", "=", "==", "===", ">", ">=", ">>", "^", additive_expression, array_literal, as_expression, assignment, await_expression, bang, bin_literal, bitwise_operation, boolean_literal, call_expression, check_expression, comparison_expression, conjunction_expression, constructor_expression, custom_operator, diagnostic, dictionary_literal, directive, disjunction_expression, equality_expression, fully_open_range, hex_literal, if_statement, infix_expression, integer_literal, key_path_expression, key_path_string_expression, lambda_literal, line_string_literal, macro_invocation, multi_line_string_literal, multiplicative_expression, navigation_expression, "nil", nil_coalescing_expression, oct_literal, open_end_range_expression, open_start_range_expression, optional_chain_marker, playground_literal, postfix_expression, prefix_expression, range_expression, raw_string_literal, real_literal, regex_literal, selector_expression, self_expression, simple_identifier, special_literal, super_expression, switch_statement, ternary_expression, try_expression, tuple_expression, value_pack_expansion, value_parameter_pack, "|", "~"]
+    lhs: [additive_expression, array_literal, as_expression, assignment, await_expression, bin_literal, bitwise_operation, boolean_literal, call_expression, check_expression, comparison_expression, conjunction_expression, constructor_expression, diagnostic, dictionary_literal, directive, disjunction_expression, equality_expression, fully_open_range, hex_literal, if_statement, infix_expression, integer_literal, key_path_expression, key_path_string_expression, lambda_literal, line_string_literal, macro_invocation, multi_line_string_literal, multiplicative_expression, navigation_expression, "nil", nil_coalescing_expression, oct_literal, open_end_range_expression, open_start_range_expression, optional_chain_marker, playground_literal, postfix_expression, prefix_expression, range_expression, raw_string_literal, real_literal, referenceable_operator, regex_literal, selector_expression, self_expression, simple_identifier, special_literal, super_expression, switch_statement, ternary_expression, try_expression, tuple_expression, value_pack_expansion, value_parameter_pack]
     op: "||"
-    rhs: ["!=", "!==", "%", "%=", "&", "*", "*=", "+", "++", "+=", "-", "--", "-=", "/", "/=", "<", "<<", "<=", "=", "==", "===", ">", ">=", ">>", "^", additive_expression, array_literal, as_expression, assignment, await_expression, bang, bin_literal, bitwise_operation, boolean_literal, call_expression, check_expression, comparison_expression, conjunction_expression, constructor_expression, custom_operator, diagnostic, dictionary_literal, directive, disjunction_expression, equality_expression, fully_open_range, hex_literal, if_statement, infix_expression, integer_literal, key_path_expression, key_path_string_expression, lambda_literal, line_string_literal, macro_invocation, multi_line_string_literal, multiplicative_expression, navigation_expression, "nil", nil_coalescing_expression, oct_literal, open_end_range_expression, open_start_range_expression, optional_chain_marker, playground_literal, postfix_expression, prefix_expression, range_expression, raw_string_literal, real_literal, regex_literal, selector_expression, self_expression, simple_identifier, special_literal, super_expression, switch_statement, ternary_expression, try_expression, tuple_expression, value_pack_expansion, value_parameter_pack, "|", "~"]
+    rhs: [additive_expression, array_literal, as_expression, assignment, await_expression, bin_literal, bitwise_operation, boolean_literal, call_expression, check_expression, comparison_expression, conjunction_expression, constructor_expression, diagnostic, dictionary_literal, directive, disjunction_expression, equality_expression, fully_open_range, hex_literal, if_statement, infix_expression, integer_literal, key_path_expression, key_path_string_expression, lambda_literal, line_string_literal, macro_invocation, multi_line_string_literal, multiplicative_expression, navigation_expression, "nil", nil_coalescing_expression, oct_literal, open_end_range_expression, open_start_range_expression, optional_chain_marker, playground_literal, postfix_expression, prefix_expression, range_expression, raw_string_literal, real_literal, referenceable_operator, regex_literal, selector_expression, self_expression, simple_identifier, special_literal, super_expression, switch_statement, ternary_expression, try_expression, tuple_expression, value_pack_expansion, value_parameter_pack]
   do_statement:
     $children*: [catch_block, statements]
   else:
@@ -125,9 +125,9 @@ named:
     $children?: modifiers
     data_contents*: enum_type_parameters
     name+: simple_identifier
-    raw_value*: ["!=", "!==", "%", "%=", "&", "*", "*=", "+", "++", "+=", "-", "--", "-=", "/", "/=", "<", "<<", "<=", "=", "==", "===", ">", ">=", ">>", "^", additive_expression, array_literal, as_expression, assignment, await_expression, bang, bin_literal, bitwise_operation, boolean_literal, call_expression, check_expression, comparison_expression, conjunction_expression, constructor_expression, custom_operator, diagnostic, dictionary_literal, directive, disjunction_expression, equality_expression, fully_open_range, hex_literal, if_statement, infix_expression, integer_literal, key_path_expression, key_path_string_expression, lambda_literal, line_string_literal, macro_invocation, multi_line_string_literal, multiplicative_expression, navigation_expression, "nil", nil_coalescing_expression, oct_literal, open_end_range_expression, open_start_range_expression, optional_chain_marker, playground_literal, postfix_expression, prefix_expression, range_expression, raw_string_literal, real_literal, regex_literal, selector_expression, self_expression, simple_identifier, special_literal, super_expression, switch_statement, ternary_expression, try_expression, tuple_expression, value_pack_expansion, value_parameter_pack, "|", "~"]
+    raw_value*: [additive_expression, array_literal, as_expression, assignment, await_expression, bin_literal, bitwise_operation, boolean_literal, call_expression, check_expression, comparison_expression, conjunction_expression, constructor_expression, diagnostic, dictionary_literal, directive, disjunction_expression, equality_expression, fully_open_range, hex_literal, if_statement, infix_expression, integer_literal, key_path_expression, key_path_string_expression, lambda_literal, line_string_literal, macro_invocation, multi_line_string_literal, multiplicative_expression, navigation_expression, "nil", nil_coalescing_expression, oct_literal, open_end_range_expression, open_start_range_expression, optional_chain_marker, playground_literal, postfix_expression, prefix_expression, range_expression, raw_string_literal, real_literal, referenceable_operator, regex_literal, selector_expression, self_expression, simple_identifier, special_literal, super_expression, switch_statement, ternary_expression, try_expression, tuple_expression, value_pack_expansion, value_parameter_pack]
   enum_type_parameters:
-    $children*: [additive_expression, array_literal, as_expression, assignment, await_expression, bang, bin_literal, bitwise_operation, boolean_literal, call_expression, check_expression, comparison_expression, conjunction_expression, constructor_expression, custom_operator, diagnostic, dictionary_literal, directive, disjunction_expression, equality_expression, fully_open_range, hex_literal, if_statement, infix_expression, integer_literal, key_path_expression, key_path_string_expression, lambda_literal, line_string_literal, macro_invocation, multi_line_string_literal, multiplicative_expression, navigation_expression, nil_coalescing_expression, oct_literal, open_end_range_expression, open_start_range_expression, optional_chain_marker, playground_literal, postfix_expression, prefix_expression, range_expression, raw_string_literal, real_literal, regex_literal, selector_expression, self_expression, simple_identifier, special_literal, super_expression, switch_statement, ternary_expression, try_expression, tuple_expression, type_modifiers, value_pack_expansion, value_parameter_pack, wildcard_pattern]
+    $children*: [additive_expression, array_literal, as_expression, assignment, await_expression, bin_literal, bitwise_operation, boolean_literal, call_expression, check_expression, comparison_expression, conjunction_expression, constructor_expression, diagnostic, dictionary_literal, directive, disjunction_expression, equality_expression, fully_open_range, hex_literal, if_statement, infix_expression, integer_literal, key_path_expression, key_path_string_expression, lambda_literal, line_string_literal, macro_invocation, multi_line_string_literal, multiplicative_expression, navigation_expression, nil_coalescing_expression, oct_literal, open_end_range_expression, open_start_range_expression, optional_chain_marker, playground_literal, postfix_expression, prefix_expression, range_expression, raw_string_literal, real_literal, referenceable_operator, regex_literal, selector_expression, self_expression, simple_identifier, special_literal, super_expression, switch_statement, ternary_expression, try_expression, tuple_expression, type_modifiers, value_pack_expansion, value_parameter_pack, wildcard_pattern]
     name*: [array_type, dictionary_type, existential_type, function_type, metatype, opaque_type, optional_type, protocol_composition_type, suppressed_constraint, tuple_type, type_pack_expansion, type_parameter_pack, user_type]
   equality_constraint:
     $children*: attribute
@@ -135,16 +135,16 @@ named:
     must_equal+: [array_type, dictionary_type, existential_type, function_type, metatype, opaque_type, optional_type, protocol_composition_type, suppressed_constraint, tuple_type, type_modifiers, type_pack_expansion, type_parameter_pack, user_type]
     name: [array_type, dictionary_type, existential_type, function_type, metatype, opaque_type, optional_type, protocol_composition_type, suppressed_constraint, tuple_type, type_pack_expansion, type_parameter_pack, user_type]
   equality_expression:
-    lhs: ["!=", "!==", "%", "%=", "&", "*", "*=", "+", "++", "+=", "-", "--", "-=", "/", "/=", "<", "<<", "<=", "=", "==", "===", ">", ">=", ">>", "^", additive_expression, array_literal, as_expression, assignment, await_expression, bang, bin_literal, bitwise_operation, boolean_literal, call_expression, check_expression, comparison_expression, conjunction_expression, constructor_expression, custom_operator, diagnostic, dictionary_literal, directive, disjunction_expression, equality_expression, fully_open_range, hex_literal, if_statement, infix_expression, integer_literal, key_path_expression, key_path_string_expression, lambda_literal, line_string_literal, macro_invocation, multi_line_string_literal, multiplicative_expression, navigation_expression, "nil", nil_coalescing_expression, oct_literal, open_end_range_expression, open_start_range_expression, optional_chain_marker, playground_literal, postfix_expression, prefix_expression, range_expression, raw_string_literal, real_literal, regex_literal, selector_expression, self_expression, simple_identifier, special_literal, super_expression, switch_statement, ternary_expression, try_expression, tuple_expression, value_pack_expansion, value_parameter_pack, "|", "~"]
+    lhs: [additive_expression, array_literal, as_expression, assignment, await_expression, bin_literal, bitwise_operation, boolean_literal, call_expression, check_expression, comparison_expression, conjunction_expression, constructor_expression, diagnostic, dictionary_literal, directive, disjunction_expression, equality_expression, fully_open_range, hex_literal, if_statement, infix_expression, integer_literal, key_path_expression, key_path_string_expression, lambda_literal, line_string_literal, macro_invocation, multi_line_string_literal, multiplicative_expression, navigation_expression, "nil", nil_coalescing_expression, oct_literal, open_end_range_expression, open_start_range_expression, optional_chain_marker, playground_literal, postfix_expression, prefix_expression, range_expression, raw_string_literal, real_literal, referenceable_operator, regex_literal, selector_expression, self_expression, simple_identifier, special_literal, super_expression, switch_statement, ternary_expression, try_expression, tuple_expression, value_pack_expansion, value_parameter_pack]
     op: ["!=", "!==", "==", "==="]
-    rhs: ["!=", "!==", "%", "%=", "&", "*", "*=", "+", "++", "+=", "-", "--", "-=", "/", "/=", "<", "<<", "<=", "=", "==", "===", ">", ">=", ">>", "^", additive_expression, array_literal, as_expression, assignment, await_expression, bang, bin_literal, bitwise_operation, boolean_literal, call_expression, check_expression, comparison_expression, conjunction_expression, constructor_expression, custom_operator, diagnostic, dictionary_literal, directive, disjunction_expression, equality_expression, fully_open_range, hex_literal, if_statement, infix_expression, integer_literal, key_path_expression, key_path_string_expression, lambda_literal, line_string_literal, macro_invocation, multi_line_string_literal, multiplicative_expression, navigation_expression, "nil", nil_coalescing_expression, oct_literal, open_end_range_expression, open_start_range_expression, optional_chain_marker, playground_literal, postfix_expression, prefix_expression, range_expression, raw_string_literal, real_literal, regex_literal, selector_expression, self_expression, simple_identifier, special_literal, super_expression, switch_statement, ternary_expression, try_expression, tuple_expression, value_pack_expansion, value_parameter_pack, "|", "~"]
+    rhs: [additive_expression, array_literal, as_expression, assignment, await_expression, bin_literal, bitwise_operation, boolean_literal, call_expression, check_expression, comparison_expression, conjunction_expression, constructor_expression, diagnostic, dictionary_literal, directive, disjunction_expression, equality_expression, fully_open_range, hex_literal, if_statement, infix_expression, integer_literal, key_path_expression, key_path_string_expression, lambda_literal, line_string_literal, macro_invocation, multi_line_string_literal, multiplicative_expression, navigation_expression, "nil", nil_coalescing_expression, oct_literal, open_end_range_expression, open_start_range_expression, optional_chain_marker, playground_literal, postfix_expression, prefix_expression, range_expression, raw_string_literal, real_literal, referenceable_operator, regex_literal, selector_expression, self_expression, simple_identifier, special_literal, super_expression, switch_statement, ternary_expression, try_expression, tuple_expression, value_pack_expansion, value_parameter_pack]
   existential_type:
     $children: [array_type, dictionary_type, existential_type, function_type, metatype, opaque_type, optional_type, protocol_composition_type, suppressed_constraint, tuple_type, type_pack_expansion, type_parameter_pack, user_type]
   external_macro_definition:
     $children: value_arguments
   for_statement:
     $children*: [statements, try_operator, type_annotation, where_clause]
-    collection: ["!=", "!==", "%", "%=", "&", "*", "*=", "+", "++", "+=", "-", "--", "-=", "/", "/=", "<", "<<", "<=", "=", "==", "===", ">", ">=", ">>", "^", additive_expression, array_literal, as_expression, assignment, await_expression, bang, bin_literal, bitwise_operation, boolean_literal, call_expression, check_expression, comparison_expression, conjunction_expression, constructor_expression, custom_operator, diagnostic, dictionary_literal, directive, disjunction_expression, equality_expression, fully_open_range, hex_literal, if_statement, infix_expression, integer_literal, key_path_expression, key_path_string_expression, lambda_literal, line_string_literal, macro_invocation, multi_line_string_literal, multiplicative_expression, navigation_expression, "nil", nil_coalescing_expression, oct_literal, open_end_range_expression, open_start_range_expression, optional_chain_marker, playground_literal, postfix_expression, prefix_expression, range_expression, raw_string_literal, real_literal, regex_literal, selector_expression, self_expression, simple_identifier, special_literal, super_expression, switch_statement, ternary_expression, try_expression, tuple_expression, value_pack_expansion, value_parameter_pack, "|", "~"]
+    collection: [additive_expression, array_literal, as_expression, assignment, await_expression, bin_literal, bitwise_operation, boolean_literal, call_expression, check_expression, comparison_expression, conjunction_expression, constructor_expression, diagnostic, dictionary_literal, directive, disjunction_expression, equality_expression, fully_open_range, hex_literal, if_statement, infix_expression, integer_literal, key_path_expression, key_path_string_expression, lambda_literal, line_string_literal, macro_invocation, multi_line_string_literal, multiplicative_expression, navigation_expression, "nil", nil_coalescing_expression, oct_literal, open_end_range_expression, open_start_range_expression, optional_chain_marker, playground_literal, postfix_expression, prefix_expression, range_expression, raw_string_literal, real_literal, referenceable_operator, regex_literal, selector_expression, self_expression, simple_identifier, special_literal, super_expression, switch_statement, ternary_expression, try_expression, tuple_expression, value_pack_expansion, value_parameter_pack]
     item: pattern
   fully_open_range:
   function_body:
@@ -152,8 +152,8 @@ named:
   function_declaration:
     $children*: [attribute, inheritance_modifier, modifiers, ownership_modifier, parameter, property_behavior_modifier, throws, throws_clause, type_constraints, type_parameters]
     body: function_body
-    default_value*: ["!=", "!==", "%", "%=", "&", "*", "*=", "+", "++", "+=", "-", "--", "-=", "/", "/=", "<", "<<", "<=", "=", "==", "===", ">", ">=", ">>", "^", additive_expression, array_literal, as_expression, assignment, await_expression, bang, bin_literal, bitwise_operation, boolean_literal, call_expression, check_expression, comparison_expression, conjunction_expression, constructor_expression, custom_operator, diagnostic, dictionary_literal, directive, disjunction_expression, equality_expression, fully_open_range, hex_literal, if_statement, infix_expression, integer_literal, key_path_expression, key_path_string_expression, lambda_literal, line_string_literal, macro_invocation, multi_line_string_literal, multiplicative_expression, navigation_expression, "nil", nil_coalescing_expression, oct_literal, open_end_range_expression, open_start_range_expression, optional_chain_marker, playground_literal, postfix_expression, prefix_expression, range_expression, raw_string_literal, real_literal, regex_literal, selector_expression, self_expression, simple_identifier, special_literal, super_expression, switch_statement, ternary_expression, try_expression, tuple_expression, value_pack_expansion, value_parameter_pack, "|", "~"]
-    name+: ["!=", "!==", "%", "%=", "&", "*", "*=", "+", "++", "+=", "-", "--", "-=", "/", "/=", "<", "<<", "<=", "=", "==", "===", ">", ">=", ">>", "^", array_type, bang, custom_operator, dictionary_type, existential_type, function_type, metatype, opaque_type, optional_type, protocol_composition_type, simple_identifier, suppressed_constraint, tuple_type, type_pack_expansion, type_parameter_pack, user_type, "|", "~"]
+    default_value*: [additive_expression, array_literal, as_expression, assignment, await_expression, bin_literal, bitwise_operation, boolean_literal, call_expression, check_expression, comparison_expression, conjunction_expression, constructor_expression, diagnostic, dictionary_literal, directive, disjunction_expression, equality_expression, fully_open_range, hex_literal, if_statement, infix_expression, integer_literal, key_path_expression, key_path_string_expression, lambda_literal, line_string_literal, macro_invocation, multi_line_string_literal, multiplicative_expression, navigation_expression, "nil", nil_coalescing_expression, oct_literal, open_end_range_expression, open_start_range_expression, optional_chain_marker, playground_literal, postfix_expression, prefix_expression, range_expression, raw_string_literal, real_literal, referenceable_operator, regex_literal, selector_expression, self_expression, simple_identifier, special_literal, super_expression, switch_statement, ternary_expression, try_expression, tuple_expression, value_pack_expansion, value_parameter_pack]
+    name+: [array_type, dictionary_type, existential_type, function_type, metatype, opaque_type, optional_type, protocol_composition_type, referenceable_operator, simple_identifier, suppressed_constraint, tuple_type, type_pack_expansion, type_parameter_pack, user_type]
     return_type*: ["!", array_type, dictionary_type, existential_type, function_type, metatype, opaque_type, optional_type, protocol_composition_type, suppressed_constraint, tuple_type, type_modifiers, type_pack_expansion, type_parameter_pack, user_type]
   function_modifier:
   function_type:
@@ -166,7 +166,7 @@ named:
   guard_statement:
     $children+: [else, statements]
     bound_identifier*: simple_identifier
-    condition+: ["!=", "!==", "%", "%=", "&", "(", ")", "*", "*=", "+", "++", "+=", ",", "-", "--", "-=", ".", "/", "/=", ":", "<", "<<", "<=", "=", "==", "===", ">", ">=", ">>", "?", "^", additive_expression, array_literal, array_type, "as", as_expression, assignment, "async", availability_condition, await_expression, bang, bin_literal, bitwise_operation, boolean_literal, call_expression, "case", check_expression, comparison_expression, conjunction_expression, constructor_expression, custom_operator, diagnostic, dictionary_literal, dictionary_type, directive, disjunction_expression, equality_expression, existential_type, fully_open_range, function_type, hex_literal, if_statement, infix_expression, integer_literal, "is", key_path_expression, key_path_string_expression, lambda_literal, line_string_literal, macro_invocation, metatype, multi_line_string_literal, multiplicative_expression, navigation_expression, "nil", nil_coalescing_expression, oct_literal, opaque_type, open_end_range_expression, open_start_range_expression, optional_chain_marker, optional_type, pattern, playground_literal, postfix_expression, prefix_expression, protocol_composition_type, range_expression, raw_string_literal, real_literal, regex_literal, selector_expression, self_expression, simple_identifier, special_literal, super_expression, suppressed_constraint, switch_statement, ternary_expression, try_expression, tuple_expression, tuple_type, type_annotation, type_modifiers, type_pack_expansion, type_parameter_pack, user_type, value_binding_pattern, value_pack_expansion, value_parameter_pack, where_clause, wildcard_pattern, "|", "~"]
+    condition+: ["(", ")", ",", ".", ":", "=", "?", additive_expression, array_literal, array_type, "as", as_expression, assignment, "async", availability_condition, await_expression, bin_literal, bitwise_operation, boolean_literal, call_expression, "case", check_expression, comparison_expression, conjunction_expression, constructor_expression, diagnostic, dictionary_literal, dictionary_type, directive, disjunction_expression, equality_expression, existential_type, fully_open_range, function_type, hex_literal, if_statement, infix_expression, integer_literal, "is", key_path_expression, key_path_string_expression, lambda_literal, line_string_literal, macro_invocation, metatype, multi_line_string_literal, multiplicative_expression, navigation_expression, "nil", nil_coalescing_expression, oct_literal, opaque_type, open_end_range_expression, open_start_range_expression, optional_chain_marker, optional_type, pattern, playground_literal, postfix_expression, prefix_expression, protocol_composition_type, range_expression, raw_string_literal, real_literal, referenceable_operator, regex_literal, selector_expression, self_expression, simple_identifier, special_literal, super_expression, suppressed_constraint, switch_statement, ternary_expression, try_expression, tuple_expression, tuple_type, type_annotation, type_modifiers, type_pack_expansion, type_parameter_pack, user_type, value_binding_pattern, value_pack_expansion, value_parameter_pack, where_clause, wildcard_pattern]
     name*: [array_type, dictionary_type, existential_type, function_type, metatype, opaque_type, optional_type, protocol_composition_type, suppressed_constraint, tuple_type, type_pack_expansion, type_parameter_pack, user_type]
   hex_literal:
   identifier:
@@ -174,14 +174,14 @@ named:
   if_statement:
     $children*: [else, if_statement, statements]
     bound_identifier*: simple_identifier
-    condition+: ["!=", "!==", "%", "%=", "&", "(", ")", "*", "*=", "+", "++", "+=", ",", "-", "--", "-=", ".", "/", "/=", ":", "<", "<<", "<=", "=", "==", "===", ">", ">=", ">>", "?", "^", additive_expression, array_literal, array_type, "as", as_expression, assignment, "async", availability_condition, await_expression, bang, bin_literal, bitwise_operation, boolean_literal, call_expression, "case", check_expression, comparison_expression, conjunction_expression, constructor_expression, custom_operator, diagnostic, dictionary_literal, dictionary_type, directive, disjunction_expression, equality_expression, existential_type, fully_open_range, function_type, hex_literal, if_statement, infix_expression, integer_literal, "is", key_path_expression, key_path_string_expression, lambda_literal, line_string_literal, macro_invocation, metatype, multi_line_string_literal, multiplicative_expression, navigation_expression, "nil", nil_coalescing_expression, oct_literal, opaque_type, open_end_range_expression, open_start_range_expression, optional_chain_marker, optional_type, pattern, playground_literal, postfix_expression, prefix_expression, protocol_composition_type, range_expression, raw_string_literal, real_literal, regex_literal, selector_expression, self_expression, simple_identifier, special_literal, super_expression, suppressed_constraint, switch_statement, ternary_expression, try_expression, tuple_expression, tuple_type, type_annotation, type_modifiers, type_pack_expansion, type_parameter_pack, user_type, value_binding_pattern, value_pack_expansion, value_parameter_pack, where_clause, wildcard_pattern, "|", "~"]
+    condition+: ["(", ")", ",", ".", ":", "=", "?", additive_expression, array_literal, array_type, "as", as_expression, assignment, "async", availability_condition, await_expression, bin_literal, bitwise_operation, boolean_literal, call_expression, "case", check_expression, comparison_expression, conjunction_expression, constructor_expression, diagnostic, dictionary_literal, dictionary_type, directive, disjunction_expression, equality_expression, existential_type, fully_open_range, function_type, hex_literal, if_statement, infix_expression, integer_literal, "is", key_path_expression, key_path_string_expression, lambda_literal, line_string_literal, macro_invocation, metatype, multi_line_string_literal, multiplicative_expression, navigation_expression, "nil", nil_coalescing_expression, oct_literal, opaque_type, open_end_range_expression, open_start_range_expression, optional_chain_marker, optional_type, pattern, playground_literal, postfix_expression, prefix_expression, protocol_composition_type, range_expression, raw_string_literal, real_literal, referenceable_operator, regex_literal, selector_expression, self_expression, simple_identifier, special_literal, super_expression, suppressed_constraint, switch_statement, ternary_expression, try_expression, tuple_expression, tuple_type, type_annotation, type_modifiers, type_pack_expansion, type_parameter_pack, user_type, value_binding_pattern, value_pack_expansion, value_parameter_pack, where_clause, wildcard_pattern]
     name*: [array_type, dictionary_type, existential_type, function_type, metatype, opaque_type, optional_type, protocol_composition_type, suppressed_constraint, tuple_type, type_pack_expansion, type_parameter_pack, user_type]
   import_declaration:
     $children+: [identifier, modifiers]
   infix_expression:
-    lhs: ["!=", "!==", "%", "%=", "&", "*", "*=", "+", "++", "+=", "-", "--", "-=", "/", "/=", "<", "<<", "<=", "=", "==", "===", ">", ">=", ">>", "^", additive_expression, array_literal, as_expression, assignment, await_expression, bang, bin_literal, bitwise_operation, boolean_literal, call_expression, check_expression, comparison_expression, conjunction_expression, constructor_expression, custom_operator, diagnostic, dictionary_literal, directive, disjunction_expression, equality_expression, fully_open_range, hex_literal, if_statement, infix_expression, integer_literal, key_path_expression, key_path_string_expression, lambda_literal, line_string_literal, macro_invocation, multi_line_string_literal, multiplicative_expression, navigation_expression, "nil", nil_coalescing_expression, oct_literal, open_end_range_expression, open_start_range_expression, optional_chain_marker, playground_literal, postfix_expression, prefix_expression, range_expression, raw_string_literal, real_literal, regex_literal, selector_expression, self_expression, simple_identifier, special_literal, super_expression, switch_statement, ternary_expression, try_expression, tuple_expression, value_pack_expansion, value_parameter_pack, "|", "~"]
+    lhs: [additive_expression, array_literal, as_expression, assignment, await_expression, bin_literal, bitwise_operation, boolean_literal, call_expression, check_expression, comparison_expression, conjunction_expression, constructor_expression, diagnostic, dictionary_literal, directive, disjunction_expression, equality_expression, fully_open_range, hex_literal, if_statement, infix_expression, integer_literal, key_path_expression, key_path_string_expression, lambda_literal, line_string_literal, macro_invocation, multi_line_string_literal, multiplicative_expression, navigation_expression, "nil", nil_coalescing_expression, oct_literal, open_end_range_expression, open_start_range_expression, optional_chain_marker, playground_literal, postfix_expression, prefix_expression, range_expression, raw_string_literal, real_literal, referenceable_operator, regex_literal, selector_expression, self_expression, simple_identifier, special_literal, super_expression, switch_statement, ternary_expression, try_expression, tuple_expression, value_pack_expansion, value_parameter_pack]
     op: custom_operator
-    rhs: ["!=", "!==", "%", "%=", "&", "*", "*=", "+", "++", "+=", "-", "--", "-=", "/", "/=", "<", "<<", "<=", "=", "==", "===", ">", ">=", ">>", "^", additive_expression, array_literal, as_expression, assignment, await_expression, bang, bin_literal, bitwise_operation, boolean_literal, call_expression, check_expression, comparison_expression, conjunction_expression, constructor_expression, custom_operator, diagnostic, dictionary_literal, directive, disjunction_expression, equality_expression, fully_open_range, hex_literal, if_statement, infix_expression, integer_literal, key_path_expression, key_path_string_expression, lambda_literal, line_string_literal, macro_invocation, multi_line_string_literal, multiplicative_expression, navigation_expression, "nil", nil_coalescing_expression, oct_literal, open_end_range_expression, open_start_range_expression, optional_chain_marker, playground_literal, postfix_expression, prefix_expression, range_expression, raw_string_literal, real_literal, regex_literal, selector_expression, self_expression, simple_identifier, special_literal, super_expression, switch_statement, ternary_expression, try_expression, tuple_expression, value_pack_expansion, value_parameter_pack, "|", "~"]
+    rhs: [additive_expression, array_literal, as_expression, assignment, await_expression, bin_literal, bitwise_operation, boolean_literal, call_expression, check_expression, comparison_expression, conjunction_expression, constructor_expression, diagnostic, dictionary_literal, directive, disjunction_expression, equality_expression, fully_open_range, hex_literal, if_statement, infix_expression, integer_literal, key_path_expression, key_path_string_expression, lambda_literal, line_string_literal, macro_invocation, multi_line_string_literal, multiplicative_expression, navigation_expression, "nil", nil_coalescing_expression, oct_literal, open_end_range_expression, open_start_range_expression, optional_chain_marker, playground_literal, postfix_expression, prefix_expression, range_expression, raw_string_literal, real_literal, referenceable_operator, regex_literal, selector_expression, self_expression, simple_identifier, special_literal, super_expression, switch_statement, ternary_expression, try_expression, tuple_expression, value_pack_expansion, value_parameter_pack]
   inheritance_constraint:
     $children*: attribute
     constrained_type+: [".", array_type, dictionary_type, existential_type, function_type, identifier, metatype, opaque_type, optional_type, protocol_composition_type, simple_identifier, suppressed_constraint, tuple_type, type_pack_expansion, type_parameter_pack, user_type]
@@ -193,18 +193,18 @@ named:
   init_declaration:
     $children*: [attribute, bang, modifiers, parameter, throws, throws_clause, type_constraints, type_parameters]
     body?: function_body
-    default_value*: ["!=", "!==", "%", "%=", "&", "*", "*=", "+", "++", "+=", "-", "--", "-=", "/", "/=", "<", "<<", "<=", "=", "==", "===", ">", ">=", ">>", "^", additive_expression, array_literal, as_expression, assignment, await_expression, bang, bin_literal, bitwise_operation, boolean_literal, call_expression, check_expression, comparison_expression, conjunction_expression, constructor_expression, custom_operator, diagnostic, dictionary_literal, directive, disjunction_expression, equality_expression, fully_open_range, hex_literal, if_statement, infix_expression, integer_literal, key_path_expression, key_path_string_expression, lambda_literal, line_string_literal, macro_invocation, multi_line_string_literal, multiplicative_expression, navigation_expression, "nil", nil_coalescing_expression, oct_literal, open_end_range_expression, open_start_range_expression, optional_chain_marker, playground_literal, postfix_expression, prefix_expression, range_expression, raw_string_literal, real_literal, regex_literal, selector_expression, self_expression, simple_identifier, special_literal, super_expression, switch_statement, ternary_expression, try_expression, tuple_expression, value_pack_expansion, value_parameter_pack, "|", "~"]
+    default_value*: [additive_expression, array_literal, as_expression, assignment, await_expression, bin_literal, bitwise_operation, boolean_literal, call_expression, check_expression, comparison_expression, conjunction_expression, constructor_expression, diagnostic, dictionary_literal, directive, disjunction_expression, equality_expression, fully_open_range, hex_literal, if_statement, infix_expression, integer_literal, key_path_expression, key_path_string_expression, lambda_literal, line_string_literal, macro_invocation, multi_line_string_literal, multiplicative_expression, navigation_expression, "nil", nil_coalescing_expression, oct_literal, open_end_range_expression, open_start_range_expression, optional_chain_marker, playground_literal, postfix_expression, prefix_expression, range_expression, raw_string_literal, real_literal, referenceable_operator, regex_literal, selector_expression, self_expression, simple_identifier, special_literal, super_expression, switch_statement, ternary_expression, try_expression, tuple_expression, value_pack_expansion, value_parameter_pack]
     name: "init"
   integer_literal:
   interpolated_expression:
     $children?: type_modifiers
     name?: value_argument_label
     reference_specifier*: value_argument_label
-    value?: ["!=", "!==", "%", "%=", "&", "*", "*=", "+", "++", "+=", "-", "--", "-=", "/", "/=", "<", "<<", "<=", "=", "==", "===", ">", ">=", ">>", "^", additive_expression, array_literal, as_expression, assignment, await_expression, bang, bin_literal, bitwise_operation, boolean_literal, call_expression, check_expression, comparison_expression, conjunction_expression, constructor_expression, custom_operator, diagnostic, dictionary_literal, directive, disjunction_expression, equality_expression, fully_open_range, hex_literal, if_statement, infix_expression, integer_literal, key_path_expression, key_path_string_expression, lambda_literal, line_string_literal, macro_invocation, multi_line_string_literal, multiplicative_expression, navigation_expression, "nil", nil_coalescing_expression, oct_literal, open_end_range_expression, open_start_range_expression, optional_chain_marker, playground_literal, postfix_expression, prefix_expression, range_expression, raw_string_literal, real_literal, regex_literal, selector_expression, self_expression, simple_identifier, special_literal, super_expression, switch_statement, ternary_expression, try_expression, tuple_expression, value_pack_expansion, value_parameter_pack, "|", "~"]
+    value?: [additive_expression, array_literal, as_expression, assignment, await_expression, bin_literal, bitwise_operation, boolean_literal, call_expression, check_expression, comparison_expression, conjunction_expression, constructor_expression, diagnostic, dictionary_literal, directive, disjunction_expression, equality_expression, fully_open_range, hex_literal, if_statement, infix_expression, integer_literal, key_path_expression, key_path_string_expression, lambda_literal, line_string_literal, macro_invocation, multi_line_string_literal, multiplicative_expression, navigation_expression, "nil", nil_coalescing_expression, oct_literal, open_end_range_expression, open_start_range_expression, optional_chain_marker, playground_literal, postfix_expression, prefix_expression, range_expression, raw_string_literal, real_literal, referenceable_operator, regex_literal, selector_expression, self_expression, simple_identifier, special_literal, super_expression, switch_statement, ternary_expression, try_expression, tuple_expression, value_pack_expansion, value_parameter_pack]
   key_path_expression:
     $children*: [array_type, bang, dictionary_type, simple_identifier, type_arguments, type_identifier, value_argument]
   key_path_string_expression:
-    $children?: [additive_expression, array_literal, as_expression, assignment, await_expression, bang, bin_literal, bitwise_operation, boolean_literal, call_expression, check_expression, comparison_expression, conjunction_expression, constructor_expression, custom_operator, diagnostic, dictionary_literal, directive, disjunction_expression, equality_expression, fully_open_range, hex_literal, if_statement, infix_expression, integer_literal, key_path_expression, key_path_string_expression, lambda_literal, line_string_literal, macro_invocation, multi_line_string_literal, multiplicative_expression, navigation_expression, nil_coalescing_expression, oct_literal, open_end_range_expression, open_start_range_expression, optional_chain_marker, playground_literal, postfix_expression, prefix_expression, range_expression, raw_string_literal, real_literal, regex_literal, selector_expression, self_expression, simple_identifier, special_literal, super_expression, switch_statement, ternary_expression, try_expression, tuple_expression, value_pack_expansion, value_parameter_pack]
+    $children?: [additive_expression, array_literal, as_expression, assignment, await_expression, bin_literal, bitwise_operation, boolean_literal, call_expression, check_expression, comparison_expression, conjunction_expression, constructor_expression, diagnostic, dictionary_literal, directive, disjunction_expression, equality_expression, fully_open_range, hex_literal, if_statement, infix_expression, integer_literal, key_path_expression, key_path_string_expression, lambda_literal, line_string_literal, macro_invocation, multi_line_string_literal, multiplicative_expression, navigation_expression, nil_coalescing_expression, oct_literal, open_end_range_expression, open_start_range_expression, optional_chain_marker, playground_literal, postfix_expression, prefix_expression, range_expression, raw_string_literal, real_literal, referenceable_operator, regex_literal, selector_expression, self_expression, simple_identifier, special_literal, super_expression, switch_statement, ternary_expression, try_expression, tuple_expression, value_pack_expansion, value_parameter_pack]
   lambda_function_type:
     $children*: [lambda_function_type_parameters, throws, throws_clause]
     name?: [array_type, dictionary_type, existential_type, function_type, metatype, opaque_type, optional_type, protocol_composition_type, suppressed_constraint, tuple_type, type_pack_expansion, type_parameter_pack, user_type]
@@ -226,10 +226,10 @@ named:
     text*: [line_str_text, str_escaped_char]
   macro_declaration:
     $children+: [array_type, attribute, dictionary_type, existential_type, function_type, metatype, modifiers, opaque_type, optional_type, parameter, protocol_composition_type, simple_identifier, suppressed_constraint, tuple_type, type_constraints, type_pack_expansion, type_parameter_pack, type_parameters, user_type]
-    default_value*: ["!=", "!==", "%", "%=", "&", "*", "*=", "+", "++", "+=", "-", "--", "-=", "/", "/=", "<", "<<", "<=", "=", "==", "===", ">", ">=", ">>", "^", additive_expression, array_literal, as_expression, assignment, await_expression, bang, bin_literal, bitwise_operation, boolean_literal, call_expression, check_expression, comparison_expression, conjunction_expression, constructor_expression, custom_operator, diagnostic, dictionary_literal, directive, disjunction_expression, equality_expression, fully_open_range, hex_literal, if_statement, infix_expression, integer_literal, key_path_expression, key_path_string_expression, lambda_literal, line_string_literal, macro_invocation, multi_line_string_literal, multiplicative_expression, navigation_expression, "nil", nil_coalescing_expression, oct_literal, open_end_range_expression, open_start_range_expression, optional_chain_marker, playground_literal, postfix_expression, prefix_expression, range_expression, raw_string_literal, real_literal, regex_literal, selector_expression, self_expression, simple_identifier, special_literal, super_expression, switch_statement, ternary_expression, try_expression, tuple_expression, value_pack_expansion, value_parameter_pack, "|", "~"]
+    default_value*: [additive_expression, array_literal, as_expression, assignment, await_expression, bin_literal, bitwise_operation, boolean_literal, call_expression, check_expression, comparison_expression, conjunction_expression, constructor_expression, diagnostic, dictionary_literal, directive, disjunction_expression, equality_expression, fully_open_range, hex_literal, if_statement, infix_expression, integer_literal, key_path_expression, key_path_string_expression, lambda_literal, line_string_literal, macro_invocation, multi_line_string_literal, multiplicative_expression, navigation_expression, "nil", nil_coalescing_expression, oct_literal, open_end_range_expression, open_start_range_expression, optional_chain_marker, playground_literal, postfix_expression, prefix_expression, range_expression, raw_string_literal, real_literal, referenceable_operator, regex_literal, selector_expression, self_expression, simple_identifier, special_literal, super_expression, switch_statement, ternary_expression, try_expression, tuple_expression, value_pack_expansion, value_parameter_pack]
     definition?: macro_definition
   macro_definition:
-    body: ["!=", "!==", "%", "%=", "&", "*", "*=", "+", "++", "+=", "-", "--", "-=", "/", "/=", "<", "<<", "<=", "=", "==", "===", ">", ">=", ">>", "^", additive_expression, array_literal, as_expression, assignment, await_expression, bang, bin_literal, bitwise_operation, boolean_literal, call_expression, check_expression, comparison_expression, conjunction_expression, constructor_expression, custom_operator, diagnostic, dictionary_literal, directive, disjunction_expression, equality_expression, external_macro_definition, fully_open_range, hex_literal, if_statement, infix_expression, integer_literal, key_path_expression, key_path_string_expression, lambda_literal, line_string_literal, macro_invocation, multi_line_string_literal, multiplicative_expression, navigation_expression, "nil", nil_coalescing_expression, oct_literal, open_end_range_expression, open_start_range_expression, optional_chain_marker, playground_literal, postfix_expression, prefix_expression, range_expression, raw_string_literal, real_literal, regex_literal, selector_expression, self_expression, simple_identifier, special_literal, super_expression, switch_statement, ternary_expression, try_expression, tuple_expression, value_pack_expansion, value_parameter_pack, "|", "~"]
+    body: [additive_expression, array_literal, as_expression, assignment, await_expression, bin_literal, bitwise_operation, boolean_literal, call_expression, check_expression, comparison_expression, conjunction_expression, constructor_expression, diagnostic, dictionary_literal, directive, disjunction_expression, equality_expression, external_macro_definition, fully_open_range, hex_literal, if_statement, infix_expression, integer_literal, key_path_expression, key_path_string_expression, lambda_literal, line_string_literal, macro_invocation, multi_line_string_literal, multiplicative_expression, navigation_expression, "nil", nil_coalescing_expression, oct_literal, open_end_range_expression, open_start_range_expression, optional_chain_marker, playground_literal, postfix_expression, prefix_expression, range_expression, raw_string_literal, real_literal, referenceable_operator, regex_literal, selector_expression, self_expression, simple_identifier, special_literal, super_expression, switch_statement, ternary_expression, try_expression, tuple_expression, value_pack_expansion, value_parameter_pack]
   macro_invocation:
     $children+: [call_suffix, simple_identifier, type_parameters]
   member_modifier:
@@ -245,30 +245,30 @@ named:
     text*: ["\"", multi_line_str_text, str_escaped_char]
   multiline_comment:
   multiplicative_expression:
-    lhs: ["!=", "!==", "%", "%=", "&", "*", "*=", "+", "++", "+=", "-", "--", "-=", "/", "/=", "<", "<<", "<=", "=", "==", "===", ">", ">=", ">>", "^", additive_expression, array_literal, as_expression, assignment, await_expression, bang, bin_literal, bitwise_operation, boolean_literal, call_expression, check_expression, comparison_expression, conjunction_expression, constructor_expression, custom_operator, diagnostic, dictionary_literal, directive, disjunction_expression, equality_expression, fully_open_range, hex_literal, if_statement, infix_expression, integer_literal, key_path_expression, key_path_string_expression, lambda_literal, line_string_literal, macro_invocation, multi_line_string_literal, multiplicative_expression, navigation_expression, "nil", nil_coalescing_expression, oct_literal, open_end_range_expression, open_start_range_expression, optional_chain_marker, playground_literal, postfix_expression, prefix_expression, range_expression, raw_string_literal, real_literal, regex_literal, selector_expression, self_expression, simple_identifier, special_literal, super_expression, switch_statement, ternary_expression, try_expression, tuple_expression, value_pack_expansion, value_parameter_pack, "|", "~"]
+    lhs: [additive_expression, array_literal, as_expression, assignment, await_expression, bin_literal, bitwise_operation, boolean_literal, call_expression, check_expression, comparison_expression, conjunction_expression, constructor_expression, diagnostic, dictionary_literal, directive, disjunction_expression, equality_expression, fully_open_range, hex_literal, if_statement, infix_expression, integer_literal, key_path_expression, key_path_string_expression, lambda_literal, line_string_literal, macro_invocation, multi_line_string_literal, multiplicative_expression, navigation_expression, "nil", nil_coalescing_expression, oct_literal, open_end_range_expression, open_start_range_expression, optional_chain_marker, playground_literal, postfix_expression, prefix_expression, range_expression, raw_string_literal, real_literal, referenceable_operator, regex_literal, selector_expression, self_expression, simple_identifier, special_literal, super_expression, switch_statement, ternary_expression, try_expression, tuple_expression, value_pack_expansion, value_parameter_pack]
     op: ["%", "*", "/"]
-    rhs: ["!=", "!==", "%", "%=", "&", "*", "*=", "+", "++", "+=", "-", "--", "-=", "/", "/=", "<", "<<", "<=", "=", "==", "===", ">", ">=", ">>", "^", additive_expression, array_literal, as_expression, assignment, await_expression, bang, bin_literal, bitwise_operation, boolean_literal, call_expression, check_expression, comparison_expression, conjunction_expression, constructor_expression, custom_operator, diagnostic, dictionary_literal, directive, disjunction_expression, equality_expression, fully_open_range, hex_literal, if_statement, infix_expression, integer_literal, key_path_expression, key_path_string_expression, lambda_literal, line_string_literal, macro_invocation, multi_line_string_literal, multiplicative_expression, navigation_expression, "nil", nil_coalescing_expression, oct_literal, open_end_range_expression, open_start_range_expression, optional_chain_marker, playground_literal, postfix_expression, prefix_expression, range_expression, raw_string_literal, real_literal, regex_literal, selector_expression, self_expression, simple_identifier, special_literal, super_expression, switch_statement, ternary_expression, try_expression, tuple_expression, value_pack_expansion, value_parameter_pack, "|", "~"]
+    rhs: [additive_expression, array_literal, as_expression, assignment, await_expression, bin_literal, bitwise_operation, boolean_literal, call_expression, check_expression, comparison_expression, conjunction_expression, constructor_expression, diagnostic, dictionary_literal, directive, disjunction_expression, equality_expression, fully_open_range, hex_literal, if_statement, infix_expression, integer_literal, key_path_expression, key_path_string_expression, lambda_literal, line_string_literal, macro_invocation, multi_line_string_literal, multiplicative_expression, navigation_expression, "nil", nil_coalescing_expression, oct_literal, open_end_range_expression, open_start_range_expression, optional_chain_marker, playground_literal, postfix_expression, prefix_expression, range_expression, raw_string_literal, real_literal, referenceable_operator, regex_literal, selector_expression, self_expression, simple_identifier, special_literal, super_expression, switch_statement, ternary_expression, try_expression, tuple_expression, value_pack_expansion, value_parameter_pack]
   mutation_modifier:
   navigation_expression:
     element?: [dictionary_type, existential_type, opaque_type]
     suffix: navigation_suffix
-    target+: ["!=", "!==", "%", "%=", "&", "(", ")", "*", "*=", "+", "++", "+=", "-", "--", "-=", "/", "/=", "<", "<<", "<=", "=", "==", "===", ">", ">=", ">>", "^", additive_expression, array_literal, array_type, as_expression, assignment, await_expression, bang, bin_literal, bitwise_operation, boolean_literal, call_expression, check_expression, comparison_expression, conjunction_expression, constructor_expression, custom_operator, diagnostic, dictionary_literal, dictionary_type, directive, disjunction_expression, equality_expression, existential_type, fully_open_range, hex_literal, if_statement, infix_expression, integer_literal, key_path_expression, key_path_string_expression, lambda_literal, line_string_literal, macro_invocation, multi_line_string_literal, multiplicative_expression, navigation_expression, "nil", nil_coalescing_expression, oct_literal, opaque_type, open_end_range_expression, open_start_range_expression, optional_chain_marker, playground_literal, postfix_expression, prefix_expression, range_expression, raw_string_literal, real_literal, regex_literal, selector_expression, self_expression, simple_identifier, special_literal, super_expression, switch_statement, ternary_expression, try_expression, tuple_expression, user_type, value_pack_expansion, value_parameter_pack, "|", "~"]
+    target+: ["(", ")", additive_expression, array_literal, array_type, as_expression, assignment, await_expression, bin_literal, bitwise_operation, boolean_literal, call_expression, check_expression, comparison_expression, conjunction_expression, constructor_expression, diagnostic, dictionary_literal, dictionary_type, directive, disjunction_expression, equality_expression, existential_type, fully_open_range, hex_literal, if_statement, infix_expression, integer_literal, key_path_expression, key_path_string_expression, lambda_literal, line_string_literal, macro_invocation, multi_line_string_literal, multiplicative_expression, navigation_expression, "nil", nil_coalescing_expression, oct_literal, opaque_type, open_end_range_expression, open_start_range_expression, optional_chain_marker, playground_literal, postfix_expression, prefix_expression, range_expression, raw_string_literal, real_literal, referenceable_operator, regex_literal, selector_expression, self_expression, simple_identifier, special_literal, super_expression, switch_statement, ternary_expression, try_expression, tuple_expression, user_type, value_pack_expansion, value_parameter_pack]
   navigation_suffix:
     suffix: [integer_literal, simple_identifier]
   nil_coalescing_expression:
-    if_nil: ["!=", "!==", "%", "%=", "&", "*", "*=", "+", "++", "+=", "-", "--", "-=", "/", "/=", "<", "<<", "<=", "=", "==", "===", ">", ">=", ">>", "^", additive_expression, array_literal, as_expression, assignment, await_expression, bang, bin_literal, bitwise_operation, boolean_literal, call_expression, check_expression, comparison_expression, conjunction_expression, constructor_expression, custom_operator, diagnostic, dictionary_literal, directive, disjunction_expression, equality_expression, fully_open_range, hex_literal, if_statement, infix_expression, integer_literal, key_path_expression, key_path_string_expression, lambda_literal, line_string_literal, macro_invocation, multi_line_string_literal, multiplicative_expression, navigation_expression, "nil", nil_coalescing_expression, oct_literal, open_end_range_expression, open_start_range_expression, optional_chain_marker, playground_literal, postfix_expression, prefix_expression, range_expression, raw_string_literal, real_literal, regex_literal, selector_expression, self_expression, simple_identifier, special_literal, super_expression, switch_statement, ternary_expression, try_expression, tuple_expression, value_pack_expansion, value_parameter_pack, "|", "~"]
-    value: ["!=", "!==", "%", "%=", "&", "*", "*=", "+", "++", "+=", "-", "--", "-=", "/", "/=", "<", "<<", "<=", "=", "==", "===", ">", ">=", ">>", "^", additive_expression, array_literal, as_expression, assignment, await_expression, bang, bin_literal, bitwise_operation, boolean_literal, call_expression, check_expression, comparison_expression, conjunction_expression, constructor_expression, custom_operator, diagnostic, dictionary_literal, directive, disjunction_expression, equality_expression, fully_open_range, hex_literal, if_statement, infix_expression, integer_literal, key_path_expression, key_path_string_expression, lambda_literal, line_string_literal, macro_invocation, multi_line_string_literal, multiplicative_expression, navigation_expression, "nil", nil_coalescing_expression, oct_literal, open_end_range_expression, open_start_range_expression, optional_chain_marker, playground_literal, postfix_expression, prefix_expression, range_expression, raw_string_literal, real_literal, regex_literal, selector_expression, self_expression, simple_identifier, special_literal, super_expression, switch_statement, ternary_expression, try_expression, tuple_expression, value_pack_expansion, value_parameter_pack, "|", "~"]
+    if_nil: [additive_expression, array_literal, as_expression, assignment, await_expression, bin_literal, bitwise_operation, boolean_literal, call_expression, check_expression, comparison_expression, conjunction_expression, constructor_expression, diagnostic, dictionary_literal, directive, disjunction_expression, equality_expression, fully_open_range, hex_literal, if_statement, infix_expression, integer_literal, key_path_expression, key_path_string_expression, lambda_literal, line_string_literal, macro_invocation, multi_line_string_literal, multiplicative_expression, navigation_expression, "nil", nil_coalescing_expression, oct_literal, open_end_range_expression, open_start_range_expression, optional_chain_marker, playground_literal, postfix_expression, prefix_expression, range_expression, raw_string_literal, real_literal, referenceable_operator, regex_literal, selector_expression, self_expression, simple_identifier, special_literal, super_expression, switch_statement, ternary_expression, try_expression, tuple_expression, value_pack_expansion, value_parameter_pack]
+    value: [additive_expression, array_literal, as_expression, assignment, await_expression, bin_literal, bitwise_operation, boolean_literal, call_expression, check_expression, comparison_expression, conjunction_expression, constructor_expression, diagnostic, dictionary_literal, directive, disjunction_expression, equality_expression, fully_open_range, hex_literal, if_statement, infix_expression, integer_literal, key_path_expression, key_path_string_expression, lambda_literal, line_string_literal, macro_invocation, multi_line_string_literal, multiplicative_expression, navigation_expression, "nil", nil_coalescing_expression, oct_literal, open_end_range_expression, open_start_range_expression, optional_chain_marker, playground_literal, postfix_expression, prefix_expression, range_expression, raw_string_literal, real_literal, referenceable_operator, regex_literal, selector_expression, self_expression, simple_identifier, special_literal, super_expression, switch_statement, ternary_expression, try_expression, tuple_expression, value_pack_expansion, value_parameter_pack]
   oct_literal:
   opaque_type:
     $children: [array_type, dictionary_type, existential_type, function_type, metatype, opaque_type, optional_type, protocol_composition_type, suppressed_constraint, tuple_type, type_pack_expansion, type_parameter_pack, user_type]
   open_end_range_expression:
-    start: ["!=", "!==", "%", "%=", "&", "*", "*=", "+", "++", "+=", "-", "--", "-=", "/", "/=", "<", "<<", "<=", "=", "==", "===", ">", ">=", ">>", "^", additive_expression, array_literal, as_expression, assignment, await_expression, bang, bin_literal, bitwise_operation, boolean_literal, call_expression, check_expression, comparison_expression, conjunction_expression, constructor_expression, custom_operator, diagnostic, dictionary_literal, directive, disjunction_expression, equality_expression, fully_open_range, hex_literal, if_statement, infix_expression, integer_literal, key_path_expression, key_path_string_expression, lambda_literal, line_string_literal, macro_invocation, multi_line_string_literal, multiplicative_expression, navigation_expression, "nil", nil_coalescing_expression, oct_literal, open_end_range_expression, open_start_range_expression, optional_chain_marker, playground_literal, postfix_expression, prefix_expression, range_expression, raw_string_literal, real_literal, regex_literal, selector_expression, self_expression, simple_identifier, special_literal, super_expression, switch_statement, ternary_expression, try_expression, tuple_expression, value_pack_expansion, value_parameter_pack, "|", "~"]
+    start: [additive_expression, array_literal, as_expression, assignment, await_expression, bin_literal, bitwise_operation, boolean_literal, call_expression, check_expression, comparison_expression, conjunction_expression, constructor_expression, diagnostic, dictionary_literal, directive, disjunction_expression, equality_expression, fully_open_range, hex_literal, if_statement, infix_expression, integer_literal, key_path_expression, key_path_string_expression, lambda_literal, line_string_literal, macro_invocation, multi_line_string_literal, multiplicative_expression, navigation_expression, "nil", nil_coalescing_expression, oct_literal, open_end_range_expression, open_start_range_expression, optional_chain_marker, playground_literal, postfix_expression, prefix_expression, range_expression, raw_string_literal, real_literal, referenceable_operator, regex_literal, selector_expression, self_expression, simple_identifier, special_literal, super_expression, switch_statement, ternary_expression, try_expression, tuple_expression, value_pack_expansion, value_parameter_pack]
   open_start_range_expression:
-    end: ["!=", "!==", "%", "%=", "&", "*", "*=", "+", "++", "+=", "-", "--", "-=", "/", "/=", "<", "<<", "<=", "=", "==", "===", ">", ">=", ">>", "^", additive_expression, array_literal, as_expression, assignment, await_expression, bang, bin_literal, bitwise_operation, boolean_literal, call_expression, check_expression, comparison_expression, conjunction_expression, constructor_expression, custom_operator, diagnostic, dictionary_literal, directive, disjunction_expression, equality_expression, fully_open_range, hex_literal, if_statement, infix_expression, integer_literal, key_path_expression, key_path_string_expression, lambda_literal, line_string_literal, macro_invocation, multi_line_string_literal, multiplicative_expression, navigation_expression, "nil", nil_coalescing_expression, oct_literal, open_end_range_expression, open_start_range_expression, optional_chain_marker, playground_literal, postfix_expression, prefix_expression, range_expression, raw_string_literal, real_literal, regex_literal, selector_expression, self_expression, simple_identifier, special_literal, super_expression, switch_statement, ternary_expression, try_expression, tuple_expression, value_pack_expansion, value_parameter_pack, "|", "~"]
+    end: [additive_expression, array_literal, as_expression, assignment, await_expression, bin_literal, bitwise_operation, boolean_literal, call_expression, check_expression, comparison_expression, conjunction_expression, constructor_expression, diagnostic, dictionary_literal, directive, disjunction_expression, equality_expression, fully_open_range, hex_literal, if_statement, infix_expression, integer_literal, key_path_expression, key_path_string_expression, lambda_literal, line_string_literal, macro_invocation, multi_line_string_literal, multiplicative_expression, navigation_expression, "nil", nil_coalescing_expression, oct_literal, open_end_range_expression, open_start_range_expression, optional_chain_marker, playground_literal, postfix_expression, prefix_expression, range_expression, raw_string_literal, real_literal, referenceable_operator, regex_literal, selector_expression, self_expression, simple_identifier, special_literal, super_expression, switch_statement, ternary_expression, try_expression, tuple_expression, value_pack_expansion, value_parameter_pack]
   operator_declaration:
-    $children*: [bang, custom_operator, deprecated_operator_declaration_body, simple_identifier]
+    $children+: [deprecated_operator_declaration_body, referenceable_operator, simple_identifier]
   optional_chain_marker:
-    $children?: [additive_expression, array_literal, as_expression, assignment, await_expression, bang, bin_literal, bitwise_operation, boolean_literal, call_expression, check_expression, comparison_expression, conjunction_expression, constructor_expression, custom_operator, diagnostic, dictionary_literal, directive, disjunction_expression, equality_expression, fully_open_range, hex_literal, if_statement, infix_expression, integer_literal, key_path_expression, key_path_string_expression, lambda_literal, line_string_literal, macro_invocation, multi_line_string_literal, multiplicative_expression, navigation_expression, nil_coalescing_expression, oct_literal, open_end_range_expression, open_start_range_expression, optional_chain_marker, playground_literal, postfix_expression, prefix_expression, range_expression, raw_string_literal, real_literal, regex_literal, selector_expression, self_expression, simple_identifier, special_literal, super_expression, switch_statement, ternary_expression, try_expression, tuple_expression, value_pack_expansion, value_parameter_pack]
+    $children?: [additive_expression, array_literal, as_expression, assignment, await_expression, bin_literal, bitwise_operation, boolean_literal, call_expression, check_expression, comparison_expression, conjunction_expression, constructor_expression, diagnostic, dictionary_literal, directive, disjunction_expression, equality_expression, fully_open_range, hex_literal, if_statement, infix_expression, integer_literal, key_path_expression, key_path_string_expression, lambda_literal, line_string_literal, macro_invocation, multi_line_string_literal, multiplicative_expression, navigation_expression, nil_coalescing_expression, oct_literal, open_end_range_expression, open_start_range_expression, optional_chain_marker, playground_literal, postfix_expression, prefix_expression, range_expression, raw_string_literal, real_literal, referenceable_operator, regex_literal, selector_expression, self_expression, simple_identifier, special_literal, super_expression, switch_statement, ternary_expression, try_expression, tuple_expression, value_pack_expansion, value_parameter_pack]
   optional_type:
     wrapped: [array_type, dictionary_type, tuple_type, user_type]
   ownership_modifier:
@@ -281,14 +281,14 @@ named:
   parameter_modifiers:
     $children+: parameter_modifier
   pattern:
-    $children*: [additive_expression, array_literal, as_expression, assignment, await_expression, bang, bin_literal, bitwise_operation, boolean_literal, call_expression, check_expression, comparison_expression, conjunction_expression, constructor_expression, custom_operator, diagnostic, dictionary_literal, directive, disjunction_expression, equality_expression, fully_open_range, hex_literal, if_statement, infix_expression, integer_literal, key_path_expression, key_path_string_expression, lambda_literal, line_string_literal, macro_invocation, multi_line_string_literal, multiplicative_expression, navigation_expression, nil_coalescing_expression, oct_literal, open_end_range_expression, open_start_range_expression, optional_chain_marker, pattern, playground_literal, postfix_expression, prefix_expression, range_expression, raw_string_literal, real_literal, regex_literal, selector_expression, self_expression, simple_identifier, special_literal, super_expression, switch_statement, ternary_expression, try_expression, tuple_expression, type_modifiers, user_type, value_binding_pattern, value_pack_expansion, value_parameter_pack, wildcard_pattern]
+    $children*: [additive_expression, array_literal, as_expression, assignment, await_expression, bin_literal, bitwise_operation, boolean_literal, call_expression, check_expression, comparison_expression, conjunction_expression, constructor_expression, diagnostic, dictionary_literal, directive, disjunction_expression, equality_expression, fully_open_range, hex_literal, if_statement, infix_expression, integer_literal, key_path_expression, key_path_string_expression, lambda_literal, line_string_literal, macro_invocation, multi_line_string_literal, multiplicative_expression, navigation_expression, nil_coalescing_expression, oct_literal, open_end_range_expression, open_start_range_expression, optional_chain_marker, pattern, playground_literal, postfix_expression, prefix_expression, range_expression, raw_string_literal, real_literal, referenceable_operator, regex_literal, selector_expression, self_expression, simple_identifier, special_literal, super_expression, switch_statement, ternary_expression, try_expression, tuple_expression, type_modifiers, user_type, value_binding_pattern, value_pack_expansion, value_parameter_pack, wildcard_pattern]
     bound_identifier?: simple_identifier
     name?: [array_type, dictionary_type, existential_type, function_type, metatype, opaque_type, optional_type, protocol_composition_type, suppressed_constraint, tuple_type, type_pack_expansion, type_parameter_pack, user_type]
   playground_literal:
-    $children+: [additive_expression, array_literal, as_expression, assignment, await_expression, bang, bin_literal, bitwise_operation, boolean_literal, call_expression, check_expression, comparison_expression, conjunction_expression, constructor_expression, custom_operator, diagnostic, dictionary_literal, directive, disjunction_expression, equality_expression, fully_open_range, hex_literal, if_statement, infix_expression, integer_literal, key_path_expression, key_path_string_expression, lambda_literal, line_string_literal, macro_invocation, multi_line_string_literal, multiplicative_expression, navigation_expression, nil_coalescing_expression, oct_literal, open_end_range_expression, open_start_range_expression, optional_chain_marker, playground_literal, postfix_expression, prefix_expression, range_expression, raw_string_literal, real_literal, regex_literal, selector_expression, self_expression, simple_identifier, special_literal, super_expression, switch_statement, ternary_expression, try_expression, tuple_expression, value_pack_expansion, value_parameter_pack]
+    $children+: [additive_expression, array_literal, as_expression, assignment, await_expression, bin_literal, bitwise_operation, boolean_literal, call_expression, check_expression, comparison_expression, conjunction_expression, constructor_expression, diagnostic, dictionary_literal, directive, disjunction_expression, equality_expression, fully_open_range, hex_literal, if_statement, infix_expression, integer_literal, key_path_expression, key_path_string_expression, lambda_literal, line_string_literal, macro_invocation, multi_line_string_literal, multiplicative_expression, navigation_expression, nil_coalescing_expression, oct_literal, open_end_range_expression, open_start_range_expression, optional_chain_marker, playground_literal, postfix_expression, prefix_expression, range_expression, raw_string_literal, real_literal, referenceable_operator, regex_literal, selector_expression, self_expression, simple_identifier, special_literal, super_expression, switch_statement, ternary_expression, try_expression, tuple_expression, value_pack_expansion, value_parameter_pack]
   postfix_expression:
     operation: ["++", "--", bang]
-    target: ["!=", "!==", "%", "%=", "&", "*", "*=", "+", "++", "+=", "-", "--", "-=", "/", "/=", "<", "<<", "<=", "=", "==", "===", ">", ">=", ">>", "^", additive_expression, array_literal, as_expression, assignment, await_expression, bang, bin_literal, bitwise_operation, boolean_literal, call_expression, check_expression, comparison_expression, conjunction_expression, constructor_expression, custom_operator, diagnostic, dictionary_literal, directive, disjunction_expression, equality_expression, fully_open_range, hex_literal, if_statement, infix_expression, integer_literal, key_path_expression, key_path_string_expression, lambda_literal, line_string_literal, macro_invocation, multi_line_string_literal, multiplicative_expression, navigation_expression, "nil", nil_coalescing_expression, oct_literal, open_end_range_expression, open_start_range_expression, optional_chain_marker, playground_literal, postfix_expression, prefix_expression, range_expression, raw_string_literal, real_literal, regex_literal, selector_expression, self_expression, simple_identifier, special_literal, super_expression, switch_statement, ternary_expression, try_expression, tuple_expression, value_pack_expansion, value_parameter_pack, "|", "~"]
+    target: [additive_expression, array_literal, as_expression, assignment, await_expression, bin_literal, bitwise_operation, boolean_literal, call_expression, check_expression, comparison_expression, conjunction_expression, constructor_expression, diagnostic, dictionary_literal, directive, disjunction_expression, equality_expression, fully_open_range, hex_literal, if_statement, infix_expression, integer_literal, key_path_expression, key_path_string_expression, lambda_literal, line_string_literal, macro_invocation, multi_line_string_literal, multiplicative_expression, navigation_expression, "nil", nil_coalescing_expression, oct_literal, open_end_range_expression, open_start_range_expression, optional_chain_marker, playground_literal, postfix_expression, prefix_expression, range_expression, raw_string_literal, real_literal, referenceable_operator, regex_literal, selector_expression, self_expression, simple_identifier, special_literal, super_expression, switch_statement, ternary_expression, try_expression, tuple_expression, value_pack_expansion, value_parameter_pack]
   precedence_group_attribute:
     $children+: [boolean_literal, simple_identifier]
   precedence_group_attributes:
@@ -297,13 +297,13 @@ named:
     $children+: [precedence_group_attributes, simple_identifier]
   prefix_expression:
     operation: ["&", "+", "++", "-", "--", ".", bang, custom_operator, "~"]
-    target: ["!=", "!==", "%", "%=", "&", "*", "*=", "+", "++", "+=", "-", "--", "-=", "/", "/=", "<", "<<", "<=", "=", "==", "===", ">", ">=", ">>", "^", _expression, additive_expression, array_literal, as_expression, assignment, await_expression, bang, bin_literal, bitwise_operation, boolean_literal, call_expression, check_expression, comparison_expression, conjunction_expression, constructor_expression, custom_operator, diagnostic, dictionary_literal, directive, disjunction_expression, equality_expression, fully_open_range, hex_literal, if_statement, infix_expression, integer_literal, key_path_expression, key_path_string_expression, lambda_literal, line_string_literal, macro_invocation, multi_line_string_literal, multiplicative_expression, navigation_expression, "nil", nil_coalescing_expression, oct_literal, open_end_range_expression, open_start_range_expression, optional_chain_marker, playground_literal, postfix_expression, prefix_expression, range_expression, raw_string_literal, real_literal, regex_literal, selector_expression, self_expression, simple_identifier, special_literal, super_expression, switch_statement, ternary_expression, try_expression, tuple_expression, value_pack_expansion, value_parameter_pack, "|", "~"]
+    target: [_expression, additive_expression, array_literal, as_expression, assignment, await_expression, bin_literal, bitwise_operation, boolean_literal, call_expression, check_expression, comparison_expression, conjunction_expression, constructor_expression, diagnostic, dictionary_literal, directive, disjunction_expression, equality_expression, fully_open_range, hex_literal, if_statement, infix_expression, integer_literal, key_path_expression, key_path_string_expression, lambda_literal, line_string_literal, macro_invocation, multi_line_string_literal, multiplicative_expression, navigation_expression, "nil", nil_coalescing_expression, oct_literal, open_end_range_expression, open_start_range_expression, optional_chain_marker, playground_literal, postfix_expression, prefix_expression, range_expression, raw_string_literal, real_literal, referenceable_operator, regex_literal, selector_expression, self_expression, simple_identifier, special_literal, super_expression, switch_statement, ternary_expression, try_expression, tuple_expression, value_pack_expansion, value_parameter_pack]
   property_behavior_modifier:
   property_declaration:
     $children*: [attribute, inheritance_modifier, modifiers, ownership_modifier, property_behavior_modifier, type_annotation, type_constraints, value_binding_pattern, willset_didset_block]
     computed_value*: computed_property
     name+: pattern
-    value*: ["!=", "!==", "%", "%=", "&", "*", "*=", "+", "++", "+=", "-", "--", "-=", "/", "/=", "<", "<<", "<=", "=", "==", "===", ">", ">=", ">>", "^", additive_expression, array_literal, as_expression, assignment, await_expression, bang, bin_literal, bitwise_operation, boolean_literal, call_expression, check_expression, comparison_expression, conjunction_expression, constructor_expression, custom_operator, diagnostic, dictionary_literal, directive, disjunction_expression, equality_expression, fully_open_range, hex_literal, if_statement, infix_expression, integer_literal, key_path_expression, key_path_string_expression, lambda_literal, line_string_literal, macro_invocation, multi_line_string_literal, multiplicative_expression, navigation_expression, "nil", nil_coalescing_expression, oct_literal, open_end_range_expression, open_start_range_expression, optional_chain_marker, playground_literal, postfix_expression, prefix_expression, range_expression, raw_string_literal, real_literal, regex_literal, selector_expression, self_expression, simple_identifier, special_literal, super_expression, switch_statement, ternary_expression, try_expression, tuple_expression, value_pack_expansion, value_parameter_pack, "|", "~"]
+    value*: [additive_expression, array_literal, as_expression, assignment, await_expression, bin_literal, bitwise_operation, boolean_literal, call_expression, check_expression, comparison_expression, conjunction_expression, constructor_expression, diagnostic, dictionary_literal, directive, disjunction_expression, equality_expression, fully_open_range, hex_literal, if_statement, infix_expression, integer_literal, key_path_expression, key_path_string_expression, lambda_literal, line_string_literal, macro_invocation, multi_line_string_literal, multiplicative_expression, navigation_expression, "nil", nil_coalescing_expression, oct_literal, open_end_range_expression, open_start_range_expression, optional_chain_marker, playground_literal, postfix_expression, prefix_expression, range_expression, raw_string_literal, real_literal, referenceable_operator, regex_literal, selector_expression, self_expression, simple_identifier, special_literal, super_expression, switch_statement, ternary_expression, try_expression, tuple_expression, value_pack_expansion, value_parameter_pack]
   property_modifier:
   protocol_body:
     $children*: [associatedtype_declaration, deinit_declaration, init_declaration, protocol_function_declaration, protocol_property_declaration, subscript_declaration, typealias_declaration]
@@ -317,8 +317,8 @@ named:
     name: type_identifier
   protocol_function_declaration:
     $children*: [attribute, modifiers, parameter, statements, throws, throws_clause, type_constraints, type_parameters]
-    default_value*: ["!=", "!==", "%", "%=", "&", "*", "*=", "+", "++", "+=", "-", "--", "-=", "/", "/=", "<", "<<", "<=", "=", "==", "===", ">", ">=", ">>", "^", additive_expression, array_literal, as_expression, assignment, await_expression, bang, bin_literal, bitwise_operation, boolean_literal, call_expression, check_expression, comparison_expression, conjunction_expression, constructor_expression, custom_operator, diagnostic, dictionary_literal, directive, disjunction_expression, equality_expression, fully_open_range, hex_literal, if_statement, infix_expression, integer_literal, key_path_expression, key_path_string_expression, lambda_literal, line_string_literal, macro_invocation, multi_line_string_literal, multiplicative_expression, navigation_expression, "nil", nil_coalescing_expression, oct_literal, open_end_range_expression, open_start_range_expression, optional_chain_marker, playground_literal, postfix_expression, prefix_expression, range_expression, raw_string_literal, real_literal, regex_literal, selector_expression, self_expression, simple_identifier, special_literal, super_expression, switch_statement, ternary_expression, try_expression, tuple_expression, value_pack_expansion, value_parameter_pack, "|", "~"]
-    name*: ["!=", "!==", "%", "%=", "&", "*", "*=", "+", "++", "+=", "-", "--", "-=", "/", "/=", "<", "<<", "<=", "=", "==", "===", ">", ">=", ">>", "^", array_type, bang, custom_operator, dictionary_type, existential_type, function_type, metatype, opaque_type, optional_type, protocol_composition_type, simple_identifier, suppressed_constraint, tuple_type, type_pack_expansion, type_parameter_pack, user_type, "|", "~"]
+    default_value*: [additive_expression, array_literal, as_expression, assignment, await_expression, bin_literal, bitwise_operation, boolean_literal, call_expression, check_expression, comparison_expression, conjunction_expression, constructor_expression, diagnostic, dictionary_literal, directive, disjunction_expression, equality_expression, fully_open_range, hex_literal, if_statement, infix_expression, integer_literal, key_path_expression, key_path_string_expression, lambda_literal, line_string_literal, macro_invocation, multi_line_string_literal, multiplicative_expression, navigation_expression, "nil", nil_coalescing_expression, oct_literal, open_end_range_expression, open_start_range_expression, optional_chain_marker, playground_literal, postfix_expression, prefix_expression, range_expression, raw_string_literal, real_literal, referenceable_operator, regex_literal, selector_expression, self_expression, simple_identifier, special_literal, super_expression, switch_statement, ternary_expression, try_expression, tuple_expression, value_pack_expansion, value_parameter_pack]
+    name*: [array_type, dictionary_type, existential_type, function_type, metatype, opaque_type, optional_type, protocol_composition_type, referenceable_operator, simple_identifier, suppressed_constraint, tuple_type, type_pack_expansion, type_parameter_pack, user_type]
     return_type*: ["!", array_type, dictionary_type, existential_type, function_type, metatype, opaque_type, optional_type, protocol_composition_type, suppressed_constraint, tuple_type, type_modifiers, type_pack_expansion, type_parameter_pack, user_type]
   protocol_property_declaration:
     $children+: [modifiers, protocol_property_requirements, type_annotation, type_constraints]
@@ -326,9 +326,9 @@ named:
   protocol_property_requirements:
     $children*: [getter_specifier, setter_specifier]
   range_expression:
-    end: ["!=", "!==", "%", "%=", "&", "*", "*=", "+", "++", "+=", "-", "--", "-=", "/", "/=", "<", "<<", "<=", "=", "==", "===", ">", ">=", ">>", "^", additive_expression, array_literal, as_expression, assignment, await_expression, bang, bin_literal, bitwise_operation, boolean_literal, call_expression, check_expression, comparison_expression, conjunction_expression, constructor_expression, custom_operator, diagnostic, dictionary_literal, directive, disjunction_expression, equality_expression, fully_open_range, hex_literal, if_statement, infix_expression, integer_literal, key_path_expression, key_path_string_expression, lambda_literal, line_string_literal, macro_invocation, multi_line_string_literal, multiplicative_expression, navigation_expression, "nil", nil_coalescing_expression, oct_literal, open_end_range_expression, open_start_range_expression, optional_chain_marker, playground_literal, postfix_expression, prefix_expression, range_expression, raw_string_literal, real_literal, regex_literal, selector_expression, self_expression, simple_identifier, special_literal, super_expression, switch_statement, ternary_expression, try_expression, tuple_expression, value_pack_expansion, value_parameter_pack, "|", "~"]
+    end: [additive_expression, array_literal, as_expression, assignment, await_expression, bin_literal, bitwise_operation, boolean_literal, call_expression, check_expression, comparison_expression, conjunction_expression, constructor_expression, diagnostic, dictionary_literal, directive, disjunction_expression, equality_expression, fully_open_range, hex_literal, if_statement, infix_expression, integer_literal, key_path_expression, key_path_string_expression, lambda_literal, line_string_literal, macro_invocation, multi_line_string_literal, multiplicative_expression, navigation_expression, "nil", nil_coalescing_expression, oct_literal, open_end_range_expression, open_start_range_expression, optional_chain_marker, playground_literal, postfix_expression, prefix_expression, range_expression, raw_string_literal, real_literal, referenceable_operator, regex_literal, selector_expression, self_expression, simple_identifier, special_literal, super_expression, switch_statement, ternary_expression, try_expression, tuple_expression, value_pack_expansion, value_parameter_pack]
     op: ["...", "..<"]
-    start: ["!=", "!==", "%", "%=", "&", "*", "*=", "+", "++", "+=", "-", "--", "-=", "/", "/=", "<", "<<", "<=", "=", "==", "===", ">", ">=", ">>", "^", additive_expression, array_literal, as_expression, assignment, await_expression, bang, bin_literal, bitwise_operation, boolean_literal, call_expression, check_expression, comparison_expression, conjunction_expression, constructor_expression, custom_operator, diagnostic, dictionary_literal, directive, disjunction_expression, equality_expression, fully_open_range, hex_literal, if_statement, infix_expression, integer_literal, key_path_expression, key_path_string_expression, lambda_literal, line_string_literal, macro_invocation, multi_line_string_literal, multiplicative_expression, navigation_expression, "nil", nil_coalescing_expression, oct_literal, open_end_range_expression, open_start_range_expression, optional_chain_marker, playground_literal, postfix_expression, prefix_expression, range_expression, raw_string_literal, real_literal, regex_literal, selector_expression, self_expression, simple_identifier, special_literal, super_expression, switch_statement, ternary_expression, try_expression, tuple_expression, value_pack_expansion, value_parameter_pack, "|", "~"]
+    start: [additive_expression, array_literal, as_expression, assignment, await_expression, bin_literal, bitwise_operation, boolean_literal, call_expression, check_expression, comparison_expression, conjunction_expression, constructor_expression, diagnostic, dictionary_literal, directive, disjunction_expression, equality_expression, fully_open_range, hex_literal, if_statement, infix_expression, integer_literal, key_path_expression, key_path_string_expression, lambda_literal, line_string_literal, macro_invocation, multi_line_string_literal, multiplicative_expression, navigation_expression, "nil", nil_coalescing_expression, oct_literal, open_end_range_expression, open_start_range_expression, optional_chain_marker, playground_literal, postfix_expression, prefix_expression, range_expression, raw_string_literal, real_literal, referenceable_operator, regex_literal, selector_expression, self_expression, simple_identifier, special_literal, super_expression, switch_statement, ternary_expression, try_expression, tuple_expression, value_pack_expansion, value_parameter_pack]
   raw_str_continuing_indicator:
   raw_str_end_part:
   raw_str_interpolation:
@@ -341,56 +341,58 @@ named:
     interpolation*: raw_str_interpolation
     text+: [raw_str_end_part, raw_str_part]
   real_literal:
+  referenceable_operator:
+    $children?: [bang, custom_operator]
   regex_literal:
   repeat_while_statement:
     $children?: statements
     bound_identifier*: simple_identifier
-    condition+: ["!=", "!==", "%", "%=", "&", "(", ")", "*", "*=", "+", "++", "+=", ",", "-", "--", "-=", ".", "/", "/=", ":", "<", "<<", "<=", "=", "==", "===", ">", ">=", ">>", "?", "^", additive_expression, array_literal, array_type, "as", as_expression, assignment, "async", availability_condition, await_expression, bang, bin_literal, bitwise_operation, boolean_literal, call_expression, "case", check_expression, comparison_expression, conjunction_expression, constructor_expression, custom_operator, diagnostic, dictionary_literal, dictionary_type, directive, disjunction_expression, equality_expression, existential_type, fully_open_range, function_type, hex_literal, if_statement, infix_expression, integer_literal, "is", key_path_expression, key_path_string_expression, lambda_literal, line_string_literal, macro_invocation, metatype, multi_line_string_literal, multiplicative_expression, navigation_expression, "nil", nil_coalescing_expression, oct_literal, opaque_type, open_end_range_expression, open_start_range_expression, optional_chain_marker, optional_type, pattern, playground_literal, postfix_expression, prefix_expression, protocol_composition_type, range_expression, raw_string_literal, real_literal, regex_literal, selector_expression, self_expression, simple_identifier, special_literal, super_expression, suppressed_constraint, switch_statement, ternary_expression, try_expression, tuple_expression, tuple_type, type_annotation, type_modifiers, type_pack_expansion, type_parameter_pack, user_type, value_binding_pattern, value_pack_expansion, value_parameter_pack, where_clause, wildcard_pattern, "|", "~"]
+    condition+: ["(", ")", ",", ".", ":", "=", "?", additive_expression, array_literal, array_type, "as", as_expression, assignment, "async", availability_condition, await_expression, bin_literal, bitwise_operation, boolean_literal, call_expression, "case", check_expression, comparison_expression, conjunction_expression, constructor_expression, diagnostic, dictionary_literal, dictionary_type, directive, disjunction_expression, equality_expression, existential_type, fully_open_range, function_type, hex_literal, if_statement, infix_expression, integer_literal, "is", key_path_expression, key_path_string_expression, lambda_literal, line_string_literal, macro_invocation, metatype, multi_line_string_literal, multiplicative_expression, navigation_expression, "nil", nil_coalescing_expression, oct_literal, opaque_type, open_end_range_expression, open_start_range_expression, optional_chain_marker, optional_type, pattern, playground_literal, postfix_expression, prefix_expression, protocol_composition_type, range_expression, raw_string_literal, real_literal, referenceable_operator, regex_literal, selector_expression, self_expression, simple_identifier, special_literal, super_expression, suppressed_constraint, switch_statement, ternary_expression, try_expression, tuple_expression, tuple_type, type_annotation, type_modifiers, type_pack_expansion, type_parameter_pack, user_type, value_binding_pattern, value_pack_expansion, value_parameter_pack, where_clause, wildcard_pattern]
     name*: [array_type, dictionary_type, existential_type, function_type, metatype, opaque_type, optional_type, protocol_composition_type, suppressed_constraint, tuple_type, type_pack_expansion, type_parameter_pack, user_type]
   selector_expression:
-    $children?: [additive_expression, array_literal, as_expression, assignment, await_expression, bang, bin_literal, bitwise_operation, boolean_literal, call_expression, check_expression, comparison_expression, conjunction_expression, constructor_expression, custom_operator, diagnostic, dictionary_literal, directive, disjunction_expression, equality_expression, fully_open_range, hex_literal, if_statement, infix_expression, integer_literal, key_path_expression, key_path_string_expression, lambda_literal, line_string_literal, macro_invocation, multi_line_string_literal, multiplicative_expression, navigation_expression, nil_coalescing_expression, oct_literal, open_end_range_expression, open_start_range_expression, optional_chain_marker, playground_literal, postfix_expression, prefix_expression, range_expression, raw_string_literal, real_literal, regex_literal, selector_expression, self_expression, simple_identifier, special_literal, super_expression, switch_statement, ternary_expression, try_expression, tuple_expression, value_pack_expansion, value_parameter_pack]
+    $children?: [additive_expression, array_literal, as_expression, assignment, await_expression, bin_literal, bitwise_operation, boolean_literal, call_expression, check_expression, comparison_expression, conjunction_expression, constructor_expression, diagnostic, dictionary_literal, directive, disjunction_expression, equality_expression, fully_open_range, hex_literal, if_statement, infix_expression, integer_literal, key_path_expression, key_path_string_expression, lambda_literal, line_string_literal, macro_invocation, multi_line_string_literal, multiplicative_expression, navigation_expression, nil_coalescing_expression, oct_literal, open_end_range_expression, open_start_range_expression, optional_chain_marker, playground_literal, postfix_expression, prefix_expression, range_expression, raw_string_literal, real_literal, referenceable_operator, regex_literal, selector_expression, self_expression, simple_identifier, special_literal, super_expression, switch_statement, ternary_expression, try_expression, tuple_expression, value_pack_expansion, value_parameter_pack]
   self_expression:
   setter_specifier:
     $children?: mutation_modifier
   shebang_line:
   simple_identifier:
   source_file:
-    $children*: [additive_expression, array_literal, as_expression, assignment, associatedtype_declaration, await_expression, bang, bin_literal, bitwise_operation, boolean_literal, call_expression, check_expression, class_declaration, comparison_expression, conjunction_expression, constructor_expression, custom_operator, diagnostic, dictionary_literal, directive, disjunction_expression, do_statement, equality_expression, for_statement, fully_open_range, function_declaration, guard_statement, hex_literal, if_statement, import_declaration, infix_expression, init_declaration, integer_literal, key_path_expression, key_path_string_expression, lambda_literal, line_string_literal, macro_declaration, macro_invocation, multi_line_string_literal, multiplicative_expression, navigation_expression, nil_coalescing_expression, oct_literal, open_end_range_expression, open_start_range_expression, operator_declaration, optional_chain_marker, playground_literal, postfix_expression, precedence_group_declaration, prefix_expression, property_declaration, protocol_declaration, range_expression, raw_string_literal, real_literal, regex_literal, repeat_while_statement, selector_expression, self_expression, shebang_line, simple_identifier, special_literal, statement_label, super_expression, switch_statement, ternary_expression, throw_keyword, try_expression, tuple_expression, typealias_declaration, value_pack_expansion, value_parameter_pack, while_statement]
+    $children*: [additive_expression, array_literal, as_expression, assignment, associatedtype_declaration, await_expression, bin_literal, bitwise_operation, boolean_literal, call_expression, check_expression, class_declaration, comparison_expression, conjunction_expression, constructor_expression, diagnostic, dictionary_literal, directive, disjunction_expression, do_statement, equality_expression, for_statement, fully_open_range, function_declaration, guard_statement, hex_literal, if_statement, import_declaration, infix_expression, init_declaration, integer_literal, key_path_expression, key_path_string_expression, lambda_literal, line_string_literal, macro_declaration, macro_invocation, multi_line_string_literal, multiplicative_expression, navigation_expression, nil_coalescing_expression, oct_literal, open_end_range_expression, open_start_range_expression, operator_declaration, optional_chain_marker, playground_literal, postfix_expression, precedence_group_declaration, prefix_expression, property_declaration, protocol_declaration, range_expression, raw_string_literal, real_literal, referenceable_operator, regex_literal, repeat_while_statement, selector_expression, self_expression, shebang_line, simple_identifier, special_literal, statement_label, super_expression, switch_statement, ternary_expression, throw_keyword, try_expression, tuple_expression, typealias_declaration, value_pack_expansion, value_parameter_pack, while_statement]
   special_literal:
   statement_label:
   statements:
-    $children*: [additive_expression, array_literal, as_expression, assignment, await_expression, bang, bin_literal, bitwise_operation, boolean_literal, call_expression, check_expression, class_declaration, comparison_expression, conjunction_expression, constructor_expression, control_transfer_statement, custom_operator, diagnostic, dictionary_literal, directive, disjunction_expression, do_statement, equality_expression, for_statement, fully_open_range, function_declaration, guard_statement, hex_literal, if_statement, infix_expression, integer_literal, key_path_expression, key_path_string_expression, lambda_literal, line_string_literal, macro_invocation, multi_line_string_literal, multiplicative_expression, navigation_expression, nil_coalescing_expression, oct_literal, open_end_range_expression, open_start_range_expression, optional_chain_marker, playground_literal, postfix_expression, prefix_expression, property_declaration, range_expression, raw_string_literal, real_literal, regex_literal, repeat_while_statement, selector_expression, self_expression, simple_identifier, special_literal, statement_label, super_expression, switch_statement, ternary_expression, try_expression, tuple_expression, typealias_declaration, value_pack_expansion, value_parameter_pack, while_statement]
+    $children*: [additive_expression, array_literal, as_expression, assignment, await_expression, bin_literal, bitwise_operation, boolean_literal, call_expression, check_expression, class_declaration, comparison_expression, conjunction_expression, constructor_expression, control_transfer_statement, diagnostic, dictionary_literal, directive, disjunction_expression, do_statement, equality_expression, for_statement, fully_open_range, function_declaration, guard_statement, hex_literal, if_statement, infix_expression, integer_literal, key_path_expression, key_path_string_expression, lambda_literal, line_string_literal, macro_invocation, multi_line_string_literal, multiplicative_expression, navigation_expression, nil_coalescing_expression, oct_literal, open_end_range_expression, open_start_range_expression, optional_chain_marker, playground_literal, postfix_expression, prefix_expression, property_declaration, range_expression, raw_string_literal, real_literal, referenceable_operator, regex_literal, repeat_while_statement, selector_expression, self_expression, simple_identifier, special_literal, statement_label, super_expression, switch_statement, ternary_expression, try_expression, tuple_expression, typealias_declaration, value_pack_expansion, value_parameter_pack, while_statement]
   str_escaped_char:
   subscript_declaration:
     $children+: [attribute, computed_property, modifiers, parameter, type_constraints, type_parameters]
-    default_value*: ["!=", "!==", "%", "%=", "&", "*", "*=", "+", "++", "+=", "-", "--", "-=", "/", "/=", "<", "<<", "<=", "=", "==", "===", ">", ">=", ">>", "^", additive_expression, array_literal, as_expression, assignment, await_expression, bang, bin_literal, bitwise_operation, boolean_literal, call_expression, check_expression, comparison_expression, conjunction_expression, constructor_expression, custom_operator, diagnostic, dictionary_literal, directive, disjunction_expression, equality_expression, fully_open_range, hex_literal, if_statement, infix_expression, integer_literal, key_path_expression, key_path_string_expression, lambda_literal, line_string_literal, macro_invocation, multi_line_string_literal, multiplicative_expression, navigation_expression, "nil", nil_coalescing_expression, oct_literal, open_end_range_expression, open_start_range_expression, optional_chain_marker, playground_literal, postfix_expression, prefix_expression, range_expression, raw_string_literal, real_literal, regex_literal, selector_expression, self_expression, simple_identifier, special_literal, super_expression, switch_statement, ternary_expression, try_expression, tuple_expression, value_pack_expansion, value_parameter_pack, "|", "~"]
+    default_value*: [additive_expression, array_literal, as_expression, assignment, await_expression, bin_literal, bitwise_operation, boolean_literal, call_expression, check_expression, comparison_expression, conjunction_expression, constructor_expression, diagnostic, dictionary_literal, directive, disjunction_expression, equality_expression, fully_open_range, hex_literal, if_statement, infix_expression, integer_literal, key_path_expression, key_path_string_expression, lambda_literal, line_string_literal, macro_invocation, multi_line_string_literal, multiplicative_expression, navigation_expression, "nil", nil_coalescing_expression, oct_literal, open_end_range_expression, open_start_range_expression, optional_chain_marker, playground_literal, postfix_expression, prefix_expression, range_expression, raw_string_literal, real_literal, referenceable_operator, regex_literal, selector_expression, self_expression, simple_identifier, special_literal, super_expression, switch_statement, ternary_expression, try_expression, tuple_expression, value_pack_expansion, value_parameter_pack]
     name?: [array_type, dictionary_type, existential_type, function_type, metatype, opaque_type, optional_type, protocol_composition_type, suppressed_constraint, tuple_type, type_pack_expansion, type_parameter_pack, user_type]
     return_type*: ["!", array_type, dictionary_type, existential_type, function_type, metatype, opaque_type, optional_type, protocol_composition_type, suppressed_constraint, tuple_type, type_modifiers, type_pack_expansion, type_parameter_pack, user_type]
   super_expression:
   suppressed_constraint:
     suppressed: type_identifier
   switch_entry:
-    $children+: [additive_expression, array_literal, as_expression, assignment, await_expression, bang, bin_literal, bitwise_operation, boolean_literal, call_expression, check_expression, comparison_expression, conjunction_expression, constructor_expression, custom_operator, default_keyword, diagnostic, dictionary_literal, directive, disjunction_expression, equality_expression, fully_open_range, hex_literal, if_statement, infix_expression, integer_literal, key_path_expression, key_path_string_expression, lambda_literal, line_string_literal, macro_invocation, modifiers, multi_line_string_literal, multiplicative_expression, navigation_expression, nil_coalescing_expression, oct_literal, open_end_range_expression, open_start_range_expression, optional_chain_marker, playground_literal, postfix_expression, prefix_expression, range_expression, raw_string_literal, real_literal, regex_literal, selector_expression, self_expression, simple_identifier, special_literal, statements, super_expression, switch_pattern, switch_statement, ternary_expression, try_expression, tuple_expression, value_pack_expansion, value_parameter_pack, where_keyword]
+    $children+: [additive_expression, array_literal, as_expression, assignment, await_expression, bin_literal, bitwise_operation, boolean_literal, call_expression, check_expression, comparison_expression, conjunction_expression, constructor_expression, default_keyword, diagnostic, dictionary_literal, directive, disjunction_expression, equality_expression, fully_open_range, hex_literal, if_statement, infix_expression, integer_literal, key_path_expression, key_path_string_expression, lambda_literal, line_string_literal, macro_invocation, modifiers, multi_line_string_literal, multiplicative_expression, navigation_expression, nil_coalescing_expression, oct_literal, open_end_range_expression, open_start_range_expression, optional_chain_marker, playground_literal, postfix_expression, prefix_expression, range_expression, raw_string_literal, real_literal, referenceable_operator, regex_literal, selector_expression, self_expression, simple_identifier, special_literal, statements, super_expression, switch_pattern, switch_statement, ternary_expression, try_expression, tuple_expression, value_pack_expansion, value_parameter_pack, where_keyword]
   switch_pattern:
     $children: pattern
   switch_statement:
     $children*: switch_entry
-    expr: ["!=", "!==", "%", "%=", "&", "*", "*=", "+", "++", "+=", "-", "--", "-=", "/", "/=", "<", "<<", "<=", "=", "==", "===", ">", ">=", ">>", "^", additive_expression, array_literal, as_expression, assignment, await_expression, bang, bin_literal, bitwise_operation, boolean_literal, call_expression, check_expression, comparison_expression, conjunction_expression, constructor_expression, custom_operator, diagnostic, dictionary_literal, directive, disjunction_expression, equality_expression, fully_open_range, hex_literal, if_statement, infix_expression, integer_literal, key_path_expression, key_path_string_expression, lambda_literal, line_string_literal, macro_invocation, multi_line_string_literal, multiplicative_expression, navigation_expression, "nil", nil_coalescing_expression, oct_literal, open_end_range_expression, open_start_range_expression, optional_chain_marker, playground_literal, postfix_expression, prefix_expression, range_expression, raw_string_literal, real_literal, regex_literal, selector_expression, self_expression, simple_identifier, special_literal, super_expression, switch_statement, ternary_expression, try_expression, tuple_expression, value_pack_expansion, value_parameter_pack, "|", "~"]
+    expr: [additive_expression, array_literal, as_expression, assignment, await_expression, bin_literal, bitwise_operation, boolean_literal, call_expression, check_expression, comparison_expression, conjunction_expression, constructor_expression, diagnostic, dictionary_literal, directive, disjunction_expression, equality_expression, fully_open_range, hex_literal, if_statement, infix_expression, integer_literal, key_path_expression, key_path_string_expression, lambda_literal, line_string_literal, macro_invocation, multi_line_string_literal, multiplicative_expression, navigation_expression, "nil", nil_coalescing_expression, oct_literal, open_end_range_expression, open_start_range_expression, optional_chain_marker, playground_literal, postfix_expression, prefix_expression, range_expression, raw_string_literal, real_literal, referenceable_operator, regex_literal, selector_expression, self_expression, simple_identifier, special_literal, super_expression, switch_statement, ternary_expression, try_expression, tuple_expression, value_pack_expansion, value_parameter_pack]
   ternary_expression:
-    condition: ["!=", "!==", "%", "%=", "&", "*", "*=", "+", "++", "+=", "-", "--", "-=", "/", "/=", "<", "<<", "<=", "=", "==", "===", ">", ">=", ">>", "^", additive_expression, array_literal, as_expression, assignment, await_expression, bang, bin_literal, bitwise_operation, boolean_literal, call_expression, check_expression, comparison_expression, conjunction_expression, constructor_expression, custom_operator, diagnostic, dictionary_literal, directive, disjunction_expression, equality_expression, fully_open_range, hex_literal, if_statement, infix_expression, integer_literal, key_path_expression, key_path_string_expression, lambda_literal, line_string_literal, macro_invocation, multi_line_string_literal, multiplicative_expression, navigation_expression, "nil", nil_coalescing_expression, oct_literal, open_end_range_expression, open_start_range_expression, optional_chain_marker, playground_literal, postfix_expression, prefix_expression, range_expression, raw_string_literal, real_literal, regex_literal, selector_expression, self_expression, simple_identifier, special_literal, super_expression, switch_statement, ternary_expression, try_expression, tuple_expression, value_pack_expansion, value_parameter_pack, "|", "~"]
-    if_false: ["!=", "!==", "%", "%=", "&", "*", "*=", "+", "++", "+=", "-", "--", "-=", "/", "/=", "<", "<<", "<=", "=", "==", "===", ">", ">=", ">>", "^", additive_expression, array_literal, as_expression, assignment, await_expression, bang, bin_literal, bitwise_operation, boolean_literal, call_expression, check_expression, comparison_expression, conjunction_expression, constructor_expression, custom_operator, diagnostic, dictionary_literal, directive, disjunction_expression, equality_expression, fully_open_range, hex_literal, if_statement, infix_expression, integer_literal, key_path_expression, key_path_string_expression, lambda_literal, line_string_literal, macro_invocation, multi_line_string_literal, multiplicative_expression, navigation_expression, "nil", nil_coalescing_expression, oct_literal, open_end_range_expression, open_start_range_expression, optional_chain_marker, playground_literal, postfix_expression, prefix_expression, range_expression, raw_string_literal, real_literal, regex_literal, selector_expression, self_expression, simple_identifier, special_literal, super_expression, switch_statement, ternary_expression, try_expression, tuple_expression, value_pack_expansion, value_parameter_pack, "|", "~"]
-    if_true: ["!=", "!==", "%", "%=", "&", "*", "*=", "+", "++", "+=", "-", "--", "-=", "/", "/=", "<", "<<", "<=", "=", "==", "===", ">", ">=", ">>", "^", additive_expression, array_literal, as_expression, assignment, await_expression, bang, bin_literal, bitwise_operation, boolean_literal, call_expression, check_expression, comparison_expression, conjunction_expression, constructor_expression, custom_operator, diagnostic, dictionary_literal, directive, disjunction_expression, equality_expression, fully_open_range, hex_literal, if_statement, infix_expression, integer_literal, key_path_expression, key_path_string_expression, lambda_literal, line_string_literal, macro_invocation, multi_line_string_literal, multiplicative_expression, navigation_expression, "nil", nil_coalescing_expression, oct_literal, open_end_range_expression, open_start_range_expression, optional_chain_marker, playground_literal, postfix_expression, prefix_expression, range_expression, raw_string_literal, real_literal, regex_literal, selector_expression, self_expression, simple_identifier, special_literal, super_expression, switch_statement, ternary_expression, try_expression, tuple_expression, value_pack_expansion, value_parameter_pack, "|", "~"]
+    condition: [additive_expression, array_literal, as_expression, assignment, await_expression, bin_literal, bitwise_operation, boolean_literal, call_expression, check_expression, comparison_expression, conjunction_expression, constructor_expression, diagnostic, dictionary_literal, directive, disjunction_expression, equality_expression, fully_open_range, hex_literal, if_statement, infix_expression, integer_literal, key_path_expression, key_path_string_expression, lambda_literal, line_string_literal, macro_invocation, multi_line_string_literal, multiplicative_expression, navigation_expression, "nil", nil_coalescing_expression, oct_literal, open_end_range_expression, open_start_range_expression, optional_chain_marker, playground_literal, postfix_expression, prefix_expression, range_expression, raw_string_literal, real_literal, referenceable_operator, regex_literal, selector_expression, self_expression, simple_identifier, special_literal, super_expression, switch_statement, ternary_expression, try_expression, tuple_expression, value_pack_expansion, value_parameter_pack]
+    if_false: [additive_expression, array_literal, as_expression, assignment, await_expression, bin_literal, bitwise_operation, boolean_literal, call_expression, check_expression, comparison_expression, conjunction_expression, constructor_expression, diagnostic, dictionary_literal, directive, disjunction_expression, equality_expression, fully_open_range, hex_literal, if_statement, infix_expression, integer_literal, key_path_expression, key_path_string_expression, lambda_literal, line_string_literal, macro_invocation, multi_line_string_literal, multiplicative_expression, navigation_expression, "nil", nil_coalescing_expression, oct_literal, open_end_range_expression, open_start_range_expression, optional_chain_marker, playground_literal, postfix_expression, prefix_expression, range_expression, raw_string_literal, real_literal, referenceable_operator, regex_literal, selector_expression, self_expression, simple_identifier, special_literal, super_expression, switch_statement, ternary_expression, try_expression, tuple_expression, value_pack_expansion, value_parameter_pack]
+    if_true: [additive_expression, array_literal, as_expression, assignment, await_expression, bin_literal, bitwise_operation, boolean_literal, call_expression, check_expression, comparison_expression, conjunction_expression, constructor_expression, diagnostic, dictionary_literal, directive, disjunction_expression, equality_expression, fully_open_range, hex_literal, if_statement, infix_expression, integer_literal, key_path_expression, key_path_string_expression, lambda_literal, line_string_literal, macro_invocation, multi_line_string_literal, multiplicative_expression, navigation_expression, "nil", nil_coalescing_expression, oct_literal, open_end_range_expression, open_start_range_expression, optional_chain_marker, playground_literal, postfix_expression, prefix_expression, range_expression, raw_string_literal, real_literal, referenceable_operator, regex_literal, selector_expression, self_expression, simple_identifier, special_literal, super_expression, switch_statement, ternary_expression, try_expression, tuple_expression, value_pack_expansion, value_parameter_pack]
   throw_keyword:
   throws:
   throws_clause:
     type: [array_type, dictionary_type, existential_type, function_type, metatype, opaque_type, optional_type, protocol_composition_type, suppressed_constraint, tuple_type, type_pack_expansion, type_parameter_pack, user_type]
   try_expression:
     $children: try_operator
-    expr: ["!=", "!==", "%", "%=", "&", "*", "*=", "+", "++", "+=", "-", "--", "-=", "/", "/=", "<", "<<", "<=", "=", "==", "===", ">", ">=", ">>", "^", additive_expression, array_literal, as_expression, assignment, await_expression, bang, bin_literal, bitwise_operation, boolean_literal, call_expression, check_expression, comparison_expression, conjunction_expression, constructor_expression, custom_operator, diagnostic, dictionary_literal, directive, disjunction_expression, equality_expression, fully_open_range, hex_literal, if_statement, infix_expression, integer_literal, key_path_expression, key_path_string_expression, lambda_literal, line_string_literal, macro_invocation, multi_line_string_literal, multiplicative_expression, navigation_expression, "nil", nil_coalescing_expression, oct_literal, open_end_range_expression, open_start_range_expression, optional_chain_marker, playground_literal, postfix_expression, prefix_expression, range_expression, raw_string_literal, real_literal, regex_literal, selector_expression, self_expression, simple_identifier, special_literal, super_expression, switch_statement, ternary_expression, try_expression, tuple_expression, value_pack_expansion, value_parameter_pack, "|", "~"]
+    expr: [additive_expression, array_literal, as_expression, assignment, await_expression, bin_literal, bitwise_operation, boolean_literal, call_expression, check_expression, comparison_expression, conjunction_expression, constructor_expression, diagnostic, dictionary_literal, directive, disjunction_expression, equality_expression, fully_open_range, hex_literal, if_statement, infix_expression, integer_literal, key_path_expression, key_path_string_expression, lambda_literal, line_string_literal, macro_invocation, multi_line_string_literal, multiplicative_expression, navigation_expression, "nil", nil_coalescing_expression, oct_literal, open_end_range_expression, open_start_range_expression, optional_chain_marker, playground_literal, postfix_expression, prefix_expression, range_expression, raw_string_literal, real_literal, referenceable_operator, regex_literal, selector_expression, self_expression, simple_identifier, special_literal, super_expression, switch_statement, ternary_expression, try_expression, tuple_expression, value_pack_expansion, value_parameter_pack]
   try_operator:
   tuple_expression:
     name*: simple_identifier
-    value+: ["!=", "!==", "%", "%=", "&", "*", "*=", "+", "++", "+=", "-", "--", "-=", "/", "/=", "<", "<<", "<=", "=", "==", "===", ">", ">=", ">>", "^", additive_expression, array_literal, as_expression, assignment, await_expression, bang, bin_literal, bitwise_operation, boolean_literal, call_expression, check_expression, comparison_expression, conjunction_expression, constructor_expression, custom_operator, diagnostic, dictionary_literal, directive, disjunction_expression, equality_expression, fully_open_range, hex_literal, if_statement, infix_expression, integer_literal, key_path_expression, key_path_string_expression, lambda_literal, line_string_literal, macro_invocation, multi_line_string_literal, multiplicative_expression, navigation_expression, "nil", nil_coalescing_expression, oct_literal, open_end_range_expression, open_start_range_expression, optional_chain_marker, playground_literal, postfix_expression, prefix_expression, range_expression, raw_string_literal, real_literal, regex_literal, selector_expression, self_expression, simple_identifier, special_literal, super_expression, switch_statement, ternary_expression, try_expression, tuple_expression, value_pack_expansion, value_parameter_pack, "|", "~"]
+    value+: [additive_expression, array_literal, as_expression, assignment, await_expression, bin_literal, bitwise_operation, boolean_literal, call_expression, check_expression, comparison_expression, conjunction_expression, constructor_expression, diagnostic, dictionary_literal, directive, disjunction_expression, equality_expression, fully_open_range, hex_literal, if_statement, infix_expression, integer_literal, key_path_expression, key_path_string_expression, lambda_literal, line_string_literal, macro_invocation, multi_line_string_literal, multiplicative_expression, navigation_expression, "nil", nil_coalescing_expression, oct_literal, open_end_range_expression, open_start_range_expression, optional_chain_marker, playground_literal, postfix_expression, prefix_expression, range_expression, raw_string_literal, real_literal, referenceable_operator, regex_literal, selector_expression, self_expression, simple_identifier, special_literal, super_expression, switch_statement, ternary_expression, try_expression, tuple_expression, value_pack_expansion, value_parameter_pack]
   tuple_type:
     $children?: tuple_type_item
     element*: tuple_type_item
@@ -433,7 +435,7 @@ named:
     $children?: type_modifiers
     name?: value_argument_label
     reference_specifier*: value_argument_label
-    value?: ["!=", "!==", "%", "%=", "&", "*", "*=", "+", "++", "+=", "-", "--", "-=", "/", "/=", "<", "<<", "<=", "=", "==", "===", ">", ">=", ">>", "^", additive_expression, array_literal, as_expression, assignment, await_expression, bang, bin_literal, bitwise_operation, boolean_literal, call_expression, check_expression, comparison_expression, conjunction_expression, constructor_expression, custom_operator, diagnostic, dictionary_literal, directive, disjunction_expression, equality_expression, fully_open_range, hex_literal, if_statement, infix_expression, integer_literal, key_path_expression, key_path_string_expression, lambda_literal, line_string_literal, macro_invocation, multi_line_string_literal, multiplicative_expression, navigation_expression, "nil", nil_coalescing_expression, oct_literal, open_end_range_expression, open_start_range_expression, optional_chain_marker, playground_literal, postfix_expression, prefix_expression, range_expression, raw_string_literal, real_literal, regex_literal, selector_expression, self_expression, simple_identifier, special_literal, super_expression, switch_statement, ternary_expression, try_expression, tuple_expression, value_pack_expansion, value_parameter_pack, "|", "~"]
+    value?: [additive_expression, array_literal, as_expression, assignment, await_expression, bin_literal, bitwise_operation, boolean_literal, call_expression, check_expression, comparison_expression, conjunction_expression, constructor_expression, diagnostic, dictionary_literal, directive, disjunction_expression, equality_expression, fully_open_range, hex_literal, if_statement, infix_expression, integer_literal, key_path_expression, key_path_string_expression, lambda_literal, line_string_literal, macro_invocation, multi_line_string_literal, multiplicative_expression, navigation_expression, "nil", nil_coalescing_expression, oct_literal, open_end_range_expression, open_start_range_expression, optional_chain_marker, playground_literal, postfix_expression, prefix_expression, range_expression, raw_string_literal, real_literal, referenceable_operator, regex_literal, selector_expression, self_expression, simple_identifier, special_literal, super_expression, switch_statement, ternary_expression, try_expression, tuple_expression, value_pack_expansion, value_parameter_pack]
   value_argument_label:
     $children: simple_identifier
   value_arguments:
@@ -441,17 +443,17 @@ named:
   value_binding_pattern:
     mutability: ["let", "var"]
   value_pack_expansion:
-    $children?: [additive_expression, array_literal, as_expression, assignment, await_expression, bang, bin_literal, bitwise_operation, boolean_literal, call_expression, check_expression, comparison_expression, conjunction_expression, constructor_expression, custom_operator, diagnostic, dictionary_literal, directive, disjunction_expression, equality_expression, fully_open_range, hex_literal, if_statement, infix_expression, integer_literal, key_path_expression, key_path_string_expression, lambda_literal, line_string_literal, macro_invocation, multi_line_string_literal, multiplicative_expression, navigation_expression, nil_coalescing_expression, oct_literal, open_end_range_expression, open_start_range_expression, optional_chain_marker, playground_literal, postfix_expression, prefix_expression, range_expression, raw_string_literal, real_literal, regex_literal, selector_expression, self_expression, simple_identifier, special_literal, super_expression, switch_statement, ternary_expression, try_expression, tuple_expression, value_pack_expansion, value_parameter_pack]
+    $children?: [additive_expression, array_literal, as_expression, assignment, await_expression, bin_literal, bitwise_operation, boolean_literal, call_expression, check_expression, comparison_expression, conjunction_expression, constructor_expression, diagnostic, dictionary_literal, directive, disjunction_expression, equality_expression, fully_open_range, hex_literal, if_statement, infix_expression, integer_literal, key_path_expression, key_path_string_expression, lambda_literal, line_string_literal, macro_invocation, multi_line_string_literal, multiplicative_expression, navigation_expression, nil_coalescing_expression, oct_literal, open_end_range_expression, open_start_range_expression, optional_chain_marker, playground_literal, postfix_expression, prefix_expression, range_expression, raw_string_literal, real_literal, referenceable_operator, regex_literal, selector_expression, self_expression, simple_identifier, special_literal, super_expression, switch_statement, ternary_expression, try_expression, tuple_expression, value_pack_expansion, value_parameter_pack]
   value_parameter_pack:
-    $children?: [additive_expression, array_literal, as_expression, assignment, await_expression, bang, bin_literal, bitwise_operation, boolean_literal, call_expression, check_expression, comparison_expression, conjunction_expression, constructor_expression, custom_operator, diagnostic, dictionary_literal, directive, disjunction_expression, equality_expression, fully_open_range, hex_literal, if_statement, infix_expression, integer_literal, key_path_expression, key_path_string_expression, lambda_literal, line_string_literal, macro_invocation, multi_line_string_literal, multiplicative_expression, navigation_expression, nil_coalescing_expression, oct_literal, open_end_range_expression, open_start_range_expression, optional_chain_marker, playground_literal, postfix_expression, prefix_expression, range_expression, raw_string_literal, real_literal, regex_literal, selector_expression, self_expression, simple_identifier, special_literal, super_expression, switch_statement, ternary_expression, try_expression, tuple_expression, value_pack_expansion, value_parameter_pack]
+    $children?: [additive_expression, array_literal, as_expression, assignment, await_expression, bin_literal, bitwise_operation, boolean_literal, call_expression, check_expression, comparison_expression, conjunction_expression, constructor_expression, diagnostic, dictionary_literal, directive, disjunction_expression, equality_expression, fully_open_range, hex_literal, if_statement, infix_expression, integer_literal, key_path_expression, key_path_string_expression, lambda_literal, line_string_literal, macro_invocation, multi_line_string_literal, multiplicative_expression, navigation_expression, nil_coalescing_expression, oct_literal, open_end_range_expression, open_start_range_expression, optional_chain_marker, playground_literal, postfix_expression, prefix_expression, range_expression, raw_string_literal, real_literal, referenceable_operator, regex_literal, selector_expression, self_expression, simple_identifier, special_literal, super_expression, switch_statement, ternary_expression, try_expression, tuple_expression, value_pack_expansion, value_parameter_pack]
   visibility_modifier:
   where_clause:
-    $children+: [additive_expression, array_literal, as_expression, assignment, await_expression, bang, bin_literal, bitwise_operation, boolean_literal, call_expression, check_expression, comparison_expression, conjunction_expression, constructor_expression, custom_operator, diagnostic, dictionary_literal, directive, disjunction_expression, equality_expression, fully_open_range, hex_literal, if_statement, infix_expression, integer_literal, key_path_expression, key_path_string_expression, lambda_literal, line_string_literal, macro_invocation, multi_line_string_literal, multiplicative_expression, navigation_expression, nil_coalescing_expression, oct_literal, open_end_range_expression, open_start_range_expression, optional_chain_marker, playground_literal, postfix_expression, prefix_expression, range_expression, raw_string_literal, real_literal, regex_literal, selector_expression, self_expression, simple_identifier, special_literal, super_expression, switch_statement, ternary_expression, try_expression, tuple_expression, value_pack_expansion, value_parameter_pack, where_keyword]
+    $children+: [additive_expression, array_literal, as_expression, assignment, await_expression, bin_literal, bitwise_operation, boolean_literal, call_expression, check_expression, comparison_expression, conjunction_expression, constructor_expression, diagnostic, dictionary_literal, directive, disjunction_expression, equality_expression, fully_open_range, hex_literal, if_statement, infix_expression, integer_literal, key_path_expression, key_path_string_expression, lambda_literal, line_string_literal, macro_invocation, multi_line_string_literal, multiplicative_expression, navigation_expression, nil_coalescing_expression, oct_literal, open_end_range_expression, open_start_range_expression, optional_chain_marker, playground_literal, postfix_expression, prefix_expression, range_expression, raw_string_literal, real_literal, referenceable_operator, regex_literal, selector_expression, self_expression, simple_identifier, special_literal, super_expression, switch_statement, ternary_expression, try_expression, tuple_expression, value_pack_expansion, value_parameter_pack, where_keyword]
   where_keyword:
   while_statement:
     $children?: statements
     bound_identifier*: simple_identifier
-    condition+: ["!=", "!==", "%", "%=", "&", "(", ")", "*", "*=", "+", "++", "+=", ",", "-", "--", "-=", ".", "/", "/=", ":", "<", "<<", "<=", "=", "==", "===", ">", ">=", ">>", "?", "^", additive_expression, array_literal, array_type, "as", as_expression, assignment, "async", availability_condition, await_expression, bang, bin_literal, bitwise_operation, boolean_literal, call_expression, "case", check_expression, comparison_expression, conjunction_expression, constructor_expression, custom_operator, diagnostic, dictionary_literal, dictionary_type, directive, disjunction_expression, equality_expression, existential_type, fully_open_range, function_type, hex_literal, if_statement, infix_expression, integer_literal, "is", key_path_expression, key_path_string_expression, lambda_literal, line_string_literal, macro_invocation, metatype, multi_line_string_literal, multiplicative_expression, navigation_expression, "nil", nil_coalescing_expression, oct_literal, opaque_type, open_end_range_expression, open_start_range_expression, optional_chain_marker, optional_type, pattern, playground_literal, postfix_expression, prefix_expression, protocol_composition_type, range_expression, raw_string_literal, real_literal, regex_literal, selector_expression, self_expression, simple_identifier, special_literal, super_expression, suppressed_constraint, switch_statement, ternary_expression, try_expression, tuple_expression, tuple_type, type_annotation, type_modifiers, type_pack_expansion, type_parameter_pack, user_type, value_binding_pattern, value_pack_expansion, value_parameter_pack, where_clause, wildcard_pattern, "|", "~"]
+    condition+: ["(", ")", ",", ".", ":", "=", "?", additive_expression, array_literal, array_type, "as", as_expression, assignment, "async", availability_condition, await_expression, bin_literal, bitwise_operation, boolean_literal, call_expression, "case", check_expression, comparison_expression, conjunction_expression, constructor_expression, diagnostic, dictionary_literal, dictionary_type, directive, disjunction_expression, equality_expression, existential_type, fully_open_range, function_type, hex_literal, if_statement, infix_expression, integer_literal, "is", key_path_expression, key_path_string_expression, lambda_literal, line_string_literal, macro_invocation, metatype, multi_line_string_literal, multiplicative_expression, navigation_expression, "nil", nil_coalescing_expression, oct_literal, opaque_type, open_end_range_expression, open_start_range_expression, optional_chain_marker, optional_type, pattern, playground_literal, postfix_expression, prefix_expression, protocol_composition_type, range_expression, raw_string_literal, real_literal, referenceable_operator, regex_literal, selector_expression, self_expression, simple_identifier, special_literal, super_expression, suppressed_constraint, switch_statement, ternary_expression, try_expression, tuple_expression, tuple_type, type_annotation, type_modifiers, type_pack_expansion, type_parameter_pack, user_type, value_binding_pattern, value_pack_expansion, value_parameter_pack, where_clause, wildcard_pattern]
     name*: [array_type, dictionary_type, existential_type, function_type, metatype, opaque_type, optional_type, protocol_composition_type, suppressed_constraint, tuple_type, type_pack_expansion, type_parameter_pack, user_type]
   wildcard_pattern:
   willset_clause: