Update package:intl4x for Dart (#541)

Author: mosuem

executors/dart/bin/executor.dart

@@ -47,32 +47,36 @@ void main() {
       } catch (e) {
         throw 'ERRORSTART $line ERROREND';
       }
-
-      final testType = TestTypes.values.firstWhereOrNull(
-        (type) => type.name == decoded['test_type'],
-      );
-      final outputLine = switch (testType) {
-        TestTypes.collation => testCollation(line),
-        TestTypes.decimal_fmt => testDecimalFormatWrapped(line),
-        TestTypes.number_fmt => testDecimalFormatWrapped(line),
-        TestTypes.datetime_fmt => testDateTimeFmt(line),
-        TestTypes.display_names => throw UnimplementedError(
-          'display_names is not supported yet',
-        ),
-        TestTypes.lang_names => testLangNames(line),
-        // TestTypes.likely_subtags => testLikelySubtags(line),
-        TestTypes.likely_subtags => throw UnimplementedError(
-          'likely_subtags is not supported yet, as the Locale object is not yet migrated to ICU4X',
-        ),
-        TestTypes.list_fmt => testListFmt(line),
-        TestTypes.plural_rules => testPluralRules(line),
-        null => throw ArgumentError.value(
-          decoded['test_type'],
-          'Unknown test type',
-        ),
-      };
-
-      print(outputLine);
+      try {
+        final testType = TestTypes.values.firstWhereOrNull(
+          (type) => type.name == decoded['test_type'],
+        );
+        final outputLine = switch (testType) {
+          TestTypes.collation => testCollation(line),
+          TestTypes.decimal_fmt => testDecimalFormatWrapped(line),
+          TestTypes.number_fmt => testDecimalFormatWrapped(line),
+          TestTypes.datetime_fmt => testDateTimeFmt(line),
+          TestTypes.display_names => throw UnimplementedError(
+            'display_names is not supported yet',
+          ),
+          TestTypes.lang_names => testLangNames(line),
+          // TestTypes.likely_subtags => testLikelySubtags(line),
+          TestTypes.likely_subtags => throw UnimplementedError(
+            'likely_subtags is not supported yet, as the Locale object is not yet migrated to ICU4X',
+          ),
+          TestTypes.list_fmt => testListFmt(line),
+          TestTypes.plural_rules => testPluralRules(line),
+          null => throw ArgumentError.value(
+            decoded['test_type'],
+            'Unknown test type',
+          ),
+        };
+        print(outputLine);
+      } catch (e, s) {
+        throw ArgumentError(
+          'Error while executing on $line. Error was:\n $e \n $s',
+        );
+      }
     }
   }
 }

executors/dart/lib/collator.dart

@@ -3,7 +3,6 @@
 import 'dart:convert';
 
 import 'package:intl4x/collation.dart';
-import 'package:intl4x/intl4x.dart';
 
 String testCollation(String jsonEncoded) {
   final json = jsonDecode(jsonEncoded) as Map<String, dynamic>;
@@ -52,16 +51,13 @@ String testCollation(String jsonEncoded) {
     });
   } else {
     try {
-      final coll = Intl(locale: Locale.parse(localeString));
-
-      final collationOptions = CollationOptions(
+      final compared = Collation(
+        locale: Locale.parse(localeString),
         ignorePunctuation: ignorePunctuation,
         sensitivity: sensitivity,
         numeric: numeric,
         caseFirst: caseFirst,
-      );
-
-      final compared = coll.collation(collationOptions).compare(s1, s2);
+      ).compare(s1, s2);
 
       bool result;
       if (compareType == '=') {
@@ -91,3 +87,14 @@ String testCollation(String jsonEncoded) {
   }
   return jsonEncode(outputLine);
 }
+
+// Copied from intl4x/lib/src/collation/collation_ecma.dart
+extension on CaseFirst {
+  /// The JavaScript-compatible string representation of the case first option.
+  String get jsName => switch (this) {
+    // Map the custom name 'localeDependent' to 'false'.
+    CaseFirst.localeDependent => 'false',
+    // All other cases implicitly use the enum's name (e.g., 'upper', 'lower').
+    _ => name,
+  };
+}