feat: migrate to ESM

test/fixtures/test_grammars/aliased_inlined_rules/grammar.js

@@ -2,7 +2,7 @@
 // shows that you can alias a rule that would otherwise be anonymous, and it will then appear as a
 // named node.
 
-module.exports = grammar({
+export default grammar({
     name: 'aliased_inlined_rules',
 
     extras: $ => [/\s/],

test/fixtures/test_grammars/aliased_rules/grammar.js

@@ -1,4 +1,4 @@
-module.exports = grammar({
+export default grammar({
     name: 'aliased_rules',
 
     extras: $ => [

test/fixtures/test_grammars/aliased_token_rules/grammar.js

@@ -1,7 +1,7 @@
 // This grammar shows that `ALIAS` rules can be applied directly to `TOKEN` and `IMMEDIATE_TOKEN`
 // rules.
 
-module.exports = grammar({
+export default grammar({
     name: 'aliased_token_rules',
 
     extras: $ => [/\s/],

test/fixtures/test_grammars/aliased_unit_reductions/grammar.js

@@ -5,7 +5,7 @@
 // their parent rule. In that situation, eliminating the invisible node could cause the alias to be
 // incorrectly applied to its child.
 
-module.exports = grammar({
+export default grammar({
     name: 'aliased_unit_reductions',
 
     extras: $ => [/\s/],

test/fixtures/test_grammars/aliases_in_root/grammar.js

@@ -1,4 +1,4 @@
-module.exports = grammar({
+export default grammar({
     name: 'aliases_in_root',
 
     extras: $ => [

test/fixtures/test_grammars/anonymous_error/grammar.js

@@ -1,4 +1,4 @@
-module.exports = grammar({
+export default grammar({
   name: 'anonymous_error',
   rules: {
     document: $ => repeat(choice('ok', 'ERROR')),

test/fixtures/test_grammars/anonymous_tokens_with_escaped_chars/grammar.js

@@ -4,7 +4,7 @@
 // characters. This grammar tests that this escaping works. The test is basically that the generated
 // parser compiles successfully.
 
-module.exports = grammar({
+export default grammar({
     name: "anonymous_tokens_with_escaped_chars",
     rules: {
         first_rule: $ => choice(

test/fixtures/test_grammars/associativity_left/grammar.js

@@ -1,4 +1,4 @@
-module.exports = grammar({
+export default grammar({
     name: 'associativity_left',
 
     rules: {

test/fixtures/test_grammars/associativity_missing/grammar.js

@@ -1,4 +1,4 @@
-module.exports = grammar({
+export default grammar({
     name: 'associativity_missing',
 
     rules: {

test/fixtures/test_grammars/associativity_right/grammar.js

@@ -1,4 +1,4 @@
-module.exports = grammar({
+export default grammar({
     name: 'associativity_right',
 
     rules: {

test/fixtures/test_grammars/conflict_in_repeat_rule/grammar.js

@@ -2,7 +2,7 @@
 // parser generator in order to implement repetition. There is no way of referring to these rules in
 // the grammar DSL, so these conflicts must be resolved by referring to their parent rules.
 
-module.exports = grammar({
+export default grammar({
     name: 'conflict_in_repeat_rule',
 
     rules: {

test/fixtures/test_grammars/conflict_in_repeat_rule_after_external_token/grammar.js

@@ -2,7 +2,7 @@
 // after an external token is consumed. This tests that the logic for determining the repeat rule's
 // "parent" rule works in the presence of external tokens.
 
-module.exports = grammar({
+export default grammar({
     name: 'conflict_in_repeat_rule_after_external_token',
 
     externals: $ => [
@@ -29,4 +29,4 @@ module.exports = grammar({
 
         identifier: $ => /[a-z]+/
     }
-});
+});

test/fixtures/test_grammars/conflicting_precedence/grammar.js

@@ -1,4 +1,4 @@
-module.exports = grammar({
+export default grammar({
     name: 'conflicting_precedence',
 
     rules: {

test/fixtures/test_grammars/depends_on_column/grammar.js

@@ -1,4 +1,4 @@
-module.exports = grammar({
+export default grammar({
   name: "depends_on_column",
   rules: {
     x_is_at: ($) => seq(/[ \r\n]*/, choice($.odd_column, $.even_column), "x"),

test/fixtures/test_grammars/dynamic_precedence/grammar.js

@@ -1,4 +1,4 @@
-module.exports = grammar({
+export default grammar({
     name: 'dynamic_precedence',
 
     extras: $ => [/\s/],

test/fixtures/test_grammars/epsilon_external_extra_tokens/grammar.js

@@ -1,4 +1,4 @@
-module.exports = grammar({
+export default grammar({
     name: 'epsilon_external_extra_tokens',
 
     extras: $ => [/\s/, $.comment],

test/fixtures/test_grammars/epsilon_external_tokens/grammar.js

@@ -1,4 +1,4 @@
-module.exports = grammar({
+export default grammar({
     name: 'epsilon_external_tokens',
 
     extras: $ => [/\s/],

test/fixtures/test_grammars/epsilon_rules/grammar.js

@@ -1,4 +1,4 @@
-module.exports = grammar({
+export default grammar({
     name: 'epsilon_rules',
 
     rules: {

test/fixtures/test_grammars/external_and_internal_anonymous_tokens/grammar.js

@@ -1,4 +1,4 @@
-module.exports = grammar({
+export default grammar({
     name: 'external_and_internal_anonymous_tokens',
 
     externals: $ => [

test/fixtures/test_grammars/external_and_internal_tokens/grammar.js

@@ -2,7 +2,7 @@
 // validity of an *internal* token. This is done by including the names of that internal token
 // (`line_break`) in the grammar's `externals` field.
 
-module.exports = grammar({
+export default grammar({
     name: 'external_and_internal_tokens',
 
     externals: $ => [

test/fixtures/test_grammars/external_extra_tokens/grammar.js

@@ -1,4 +1,4 @@
-module.exports = grammar({
+export default grammar({
     name: "external_extra_tokens",
 
     externals: $ => [

test/fixtures/test_grammars/external_tokens/grammar.js

@@ -2,7 +2,7 @@
 // that track the nesting depth of parentheses, similar to Ruby's percent
 // string literals.
 
-module.exports = grammar({
+export default grammar({
   name: "external_tokens",
 
   externals: $ => [

test/fixtures/test_grammars/external_unicode_column_alignment/grammar.js

@@ -1,4 +1,4 @@
-module.exports = grammar({
+export default grammar({
   name: "external_unicode_column_alignment",
 
   externals: $ => [

test/fixtures/test_grammars/extra_non_terminals/grammar.js

@@ -1,6 +1,6 @@
 // This grammar has an "extra" rule, `comment`, that is a non-terminal.
 
-module.exports = grammar({
+export default grammar({
   name: "extra_non_terminals",
 
   extras: $ => [

test/fixtures/test_grammars/extra_non_terminals_with_shared_rules/grammar.js

@@ -1,7 +1,7 @@
 // This grammar has a non-terminal extra rule `macro_statement` that contains
 // child rules that are also used elsewhere in the grammar.
 
-module.exports = grammar({
+export default grammar({
   name: "extra_non_terminals_with_shared_rules",
 
   extras: $ => [/\s+/, $.macro_statement],

test/fixtures/test_grammars/get_col_eof/grammar.js

@@ -1,4 +1,4 @@
-module.exports = grammar({
+export default grammar({
   name: "get_col_eof",
 
   externals: $ => [

test/fixtures/test_grammars/get_col_should_hang_not_crash/grammar.js

@@ -1,4 +1,4 @@
-module.exports = grammar({
+export default grammar({
   name: 'get_col_should_hang_not_crash',
 
   externals: $ => [

test/fixtures/test_grammars/immediate_tokens/grammar.js

@@ -3,7 +3,7 @@
 // When there are *no* leading `extras`, an immediate token is preferred over a normal token which
 // would otherwise match.
 
-module.exports = grammar({
+export default grammar({
   name: "immediate_tokens",
 
   extras: $ => [/\s/],

test/fixtures/test_grammars/indirect_recursion_in_transitions/grammar.js

@@ -1,4 +1,4 @@
-module.exports = grammar({
+export default grammar({
   name: 'indirect_recursive_in_single_symbol_transitions',
   rules: {
     source_file: $ => repeat($._statement),

test/fixtures/test_grammars/inline_rules/grammar.js

@@ -1,4 +1,4 @@
-module.exports = grammar({
+export default grammar({
   name: "inline_rules",
 
   extras: $ => [/\s/],

test/fixtures/test_grammars/inlined_aliased_rules/grammar.js

@@ -1,4 +1,4 @@
-module.exports = grammar({
+export default grammar({
   name: "inlined_aliased_rules",
 
   extras: $ => [/\s/],

test/fixtures/test_grammars/inverted_external_token/grammar.js

@@ -1,4 +1,4 @@
-module.exports = grammar({
+export default grammar({
   name: "inverted_external_token",
 
   externals: $ => [$.line_break],

test/fixtures/test_grammars/invisible_start_rule/grammar.js

@@ -1,4 +1,4 @@
-module.exports = grammar({
+export default grammar({
   name: "invisible_start_rule",
   rules: {
     _value: $ => choice($.a, $.b),

test/fixtures/test_grammars/lexical_conflicts_due_to_state_merging/grammar.js

@@ -1,4 +1,4 @@
-module.exports = grammar({
+export default grammar({
   name: 'lexical_conflicts_due_to_state_merging',
 
   rules: {

test/fixtures/test_grammars/named_precedences/grammar.js

@@ -1,4 +1,4 @@
-module.exports = grammar({
+export default grammar({
   name: 'named_precedences',
 
   conflicts: $ => [

test/fixtures/test_grammars/named_rule_aliased_as_anonymous/grammar.js

@@ -1,4 +1,4 @@
-module.exports = grammar({
+export default grammar({
   name: 'named_rule_aliased_as_anonymous',
 
   rules: {

test/fixtures/test_grammars/nested_inlined_rules/grammar.js

@@ -1,4 +1,4 @@
-module.exports = grammar({
+export default grammar({
   name: 'nested_inlined_rules',
 
   inline: $ => [

test/fixtures/test_grammars/next_sibling_from_zwt/grammar.js

@@ -1,4 +1,4 @@
-module.exports = grammar({
+export default grammar({
   name: "next_sibling_from_zwt",
   extras: $ => [
     /\s|\\\r?\n/,

test/fixtures/test_grammars/partially_resolved_conflict/grammar.js

@@ -1,4 +1,4 @@
-module.exports = grammar({
+export default grammar({
   name: 'partially_resolved_conflict',
 
   rules: {

test/fixtures/test_grammars/precedence_on_single_child_missing/grammar.js

@@ -1,4 +1,4 @@
-module.exports = grammar({
+export default grammar({
   name: 'precedence_on_single_child_missing',
 
   rules: {

test/fixtures/test_grammars/precedence_on_single_child_negative/grammar.js

@@ -1,4 +1,4 @@
-module.exports = grammar({
+export default grammar({
   name: 'precedence_on_single_child_negative',
 
   rules: {

test/fixtures/test_grammars/precedence_on_single_child_positive/grammar.js

@@ -1,4 +1,4 @@
-module.exports = grammar({
+export default grammar({
   name: 'precedence_on_single_child_positive',
 
   rules: {

test/fixtures/test_grammars/precedence_on_subsequence/grammar.js

@@ -1,4 +1,4 @@
-module.exports = grammar({
+export default grammar({
   name: 'precedence_on_subsequence',
 
   rules: {

test/fixtures/test_grammars/precedence_on_token/grammar.js

@@ -1,4 +1,4 @@
-module.exports = grammar({
+export default grammar({
   name: 'precedence_on_token',
 
   extras: $ => [

test/fixtures/test_grammars/readme_grammar/grammar.js

@@ -1,4 +1,4 @@
-module.exports = grammar({
+export default grammar({
   name: 'readme_grammar',
 
   // Things that can appear anywhere in the language, like comments

test/fixtures/test_grammars/reserved_words/grammar.js

@@ -1,7 +1,7 @@
 const RESERVED_NAMES = ["if", "while", "var"];
 const RESERVED_PROPERTY_NAMES = ["var"];
 
-module.exports = grammar({
+export default grammar({
   name: "reserved_words",
 
   reserved: {

test/fixtures/test_grammars/start_rule_is_blank/grammar.js

@@ -1,4 +1,4 @@
-module.exports = grammar({
+export default grammar({
   name: 'start_rule_is_blank',
 
   rules: {

test/fixtures/test_grammars/start_rule_is_token/grammar.js

@@ -1,4 +1,4 @@
-module.exports = grammar({
+export default grammar({
   name: 'start_rule_is_token',
 
   rules: {

test/fixtures/test_grammars/unicode_classes/grammar.js

@@ -1,4 +1,4 @@
-module.exports = grammar({
+export default grammar({
   name: 'unicode_classes',
 
   rules: {

test/fixtures/test_grammars/unused_rules/grammar.js

@@ -1,4 +1,4 @@
-module.exports = grammar({
+export default grammar({
   name: 'unused_rules',
 
   rules: {

test/fixtures/test_grammars/uses_current_column/grammar.js

@@ -1,4 +1,4 @@
-module.exports = grammar({
+export default grammar({
   name: 'uses_current_column',
 
   externals: $ => [