integrating fasta parser

pkg/analyzer/test/generated/parser_fasta_test.dart

 // Copyright (c) 2017, 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.
 
 import 'package:analyzer/dart/ast/ast.dart';
 import 'package:analyzer/dart/ast/token.dart' as analyzer;
 import 'package:analyzer/dart/element/element.dart';
 import 'package:analyzer/error/error.dart';
+import 'package:analyzer/src/dart/scanner/scanner.dart';
 import 'package:analyzer/src/fasta/ast_builder.dart';
 import 'package:analyzer/src/fasta/element_store.dart';
 import 'package:analyzer/src/generated/parser.dart' as analyzer;
 import 'package:analyzer/src/generated/utilities_dart.dart';
+import 'package:analyzer/src/string_source.dart';
 import 'package:front_end/src/fasta/kernel/kernel_builder.dart';
 import 'package:front_end/src/fasta/kernel/kernel_library_builder.dart';
 import 'package:front_end/src/fasta/parser/identifier_context.dart'
     show IdentifierContext;
 import 'package:front_end/src/fasta/parser/parser.dart' as fasta;
 import 'package:front_end/src/fasta/scanner/string_scanner.dart';
 import 'package:front_end/src/fasta/scanner/token.dart' as fasta;
 import 'package:test/test.dart';
 import 'package:test_reflective_loader/test_reflective_loader.dart';
 
 import 'parser_test.dart';
+import 'test_support.dart';
 
 main() {
   defineReflectiveSuite(() {
     defineReflectiveTests(ClassMemberParserTest_Fasta);
     defineReflectiveTests(ComplexParserTest_Fasta);
     defineReflectiveTests(ExpressionParserTest_Fasta);
     defineReflectiveTests(FormalParameterParserTest_Fasta);
     defineReflectiveTests(StatementParserTest_Fasta);
     defineReflectiveTests(TopLevelParserTest_Fasta);
   });
@@ skipping 346 matching lines @@
     return _parseExpression(code);
   }
 
   @override
   Expression parseCascadeSection(String code) {
     var cascadeExpression = _parseExpression('null$code') as CascadeExpression;
     return cascadeExpression.cascadeSections.first;
   }
 
   @override
-  CompilationUnit parseCompilationUnit(String source,
-      [List<ErrorCode> errorCodes = const <ErrorCode>[]]) {
-    return _runParser(source, (parser) => parser.parseUnit, errorCodes)
-        as CompilationUnit;
+  CompilationUnit parseCompilationUnit(String content,
+      [List<ErrorCode> expectedErrorCodes = const <ErrorCode>[]]) {
+    // Scan tokens
+    var source = new StringSource(content, 'parser_test_StringSource.dart');
+    GatheringErrorListener listener = new GatheringErrorListener();
+    var scanner = new Scanner.fasta(source, listener);
+    scanner.scanGenericMethodComments = enableGenericMethodComments;
+    _fastaTokens = scanner.tokenize();
+
+    // Run parser
+    analyzer.Parser parser =
+        new analyzer.Parser(source, listener, useFasta: true);
+    CompilationUnit unit = parser.parseCompilationUnit(_fastaTokens);
+
+    // Assert and return result
+    listener.assertErrorsWithCodes(expectedErrorCodes);
+    return unit;
   }
 
   @override
   ConditionalExpression parseConditionalExpression(String code) {
     return _parseExpression(code);
   }
 
   @override
   Expression parseConstExpression(String code) {
     return _parseExpression(code);
@@ skipping 592 matching lines @@
   }
 
   @override
   @failingTest
   void test_parsePartOfDirective_uri() {
     // TODO(paulberry,ahe): URIs in "part of" declarations are not supported by
     // Fasta.
     super.test_parsePartOfDirective_uri();
   }
 }