Parsed named expressions with Fasta.

pkg/analyzer/test/generated/parser_test.dart

 // Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 library analyzer.test.generated.parser_test;
 
 import 'package:analyzer/dart/ast/ast.dart';
 import 'package:analyzer/dart/ast/standard_ast_factory.dart';
 import 'package:analyzer/dart/ast/token.dart';
 import 'package:analyzer/dart/ast/visitor.dart';
@@ skipping 5601 matching lines @@
     expect(expression, isNotNull);
     assertNoErrors();
     var methodInvocation = expression as MethodInvocation;
     expect(methodInvocation.target, isNotNull);
     expect(methodInvocation.operator.type, TokenType.PERIOD);
     expect(methodInvocation.methodName, isNotNull);
     expect(methodInvocation.typeArguments, isNull);
     expect(methodInvocation.argumentList, isNotNull);
   }
 
+  void test_namedArgument() {
+    var invocation = parseExpression('m(a: 1, b: 2)') as MethodInvocation;
+    List<Expression> arguments = invocation.argumentList.arguments;
+
+    var a = arguments[0] as NamedExpression;
+    expect(a.name.label.name, 'a');
+    expect(a.expression, isNotNull);
+
+    var b = arguments[1] as NamedExpression;
+    expect(b.name.label.name, 'b');
+    expect(b.expression, isNotNull);
+  }
+
   void test_parsePostfixExpression_none_methodInvocation_question_dot() {
     Expression expression = parsePostfixExpression('a?.m()');
     expect(expression, isNotNull);
     assertNoErrors();
     var methodInvocation = expression as MethodInvocation;
     expect(methodInvocation.target, isNotNull);
     expect(methodInvocation.operator.type, TokenType.QUESTION_PERIOD);
     expect(methodInvocation.methodName, isNotNull);
     expect(methodInvocation.typeArguments, isNull);
     expect(methodInvocation.argumentList, isNotNull);
@@ skipping 9135 matching lines @@
     expectCommentText(typeVariable.documentationComment, '/// Doc');
   }
 
   /**
    * Assert that the given [name] is in declaration context.
    */
   void _assertIsDeclarationName(SimpleIdentifier name) {
     expect(name.inDeclarationContext(), isTrue);
   }
 }