Tests owed.

dart/tests/compiler/dart2js/parser_helper.dart

 // Copyright (c) 2012, 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 parser_helper;
 
 import "dart:uri";
 
 import "../../../lib/compiler/implementation/elements/elements.dart";
 import "../../../lib/compiler/implementation/tree/tree.dart";
-import '../../../lib/compiler/implementation/scanner/scannerlib.dart';
+import "../../../lib/compiler/implementation/scanner/scannerlib.dart";
 import "../../../lib/compiler/implementation/dart2jslib.dart" hide SourceString;
 import "../../../lib/compiler/implementation/source_file.dart";
 import "../../../lib/compiler/implementation/util/util.dart";
 
+export "../../../lib/compiler/implementation/dart2jslib.dart"
+       show DiagnosticListener;
+// TODO(ahe): We should have token library to export instead.
+export "../../../lib/compiler/implementation/scanner/scannerlib.dart";
+
 class LoggerCanceler implements DiagnosticListener {
   void cancel(String reason, {node, token, instruction, element}) {
     throw new CompilerCancelledException(reason);
   }
 
   void log(message) {
     print(message);
   }
 }
 
 Token scan(String text) => new StringScanner(text).tokenize();
 
-Node parseBodyCode(String text, Function parseMethod) {
+Node parseBodyCode(String text, Function parseMethod, {DiagnosticListener lc}) {

[Johnni Winther, 2012/10/31 12:24:22]

Bad name. I can see from the code that it is an abbreviation of LoggerCanceler,
but I have no idea what that is either.

[ahe, 2012/10/31 14:00:09]

Done.

   Token tokens = scan(text);
-  LoggerCanceler lc = new LoggerCanceler();
+  if (lc == null) lc = new LoggerCanceler();
   Script script =
       new Script(
           new Uri.fromComponents(scheme: "source"),
           new MockFile(text));
   LibraryElement library = new LibraryElement(script);
   library.canUseNative = true;
   NodeListener listener = new NodeListener(lc, library.entryCompilationUnit);
   Parser parser = new Parser(listener);
   Token endToken = parseMethod(parser, tokens);
   assert(endToken.kind == EOF_TOKEN);
   Node node = listener.popNode();
   Expect.isNotNull(node);
   Expect.isTrue(listener.nodes.isEmpty, 'Not empty: ${listener.nodes}');
   return node;
 }
 
 Node parseStatement(String text) =>
   parseBodyCode(text, (parser, tokens) => parser.parseStatement(tokens));
 
 Node parseFunction(String text, Compiler compiler) {
   Element element = parseUnit(text, compiler, compiler.mainApp).head;
   Expect.isNotNull(element);
   Expect.equals(ElementKind.FUNCTION, element.kind);
   return element.parseNode(compiler);
 }
 
-Node parseMember(String text) =>
-    parseBodyCode(text, (parser, tokens) => parser.parseMember(tokens));
+Node parseMember(String text, {DiagnosticListener lc}) =>

[Johnni Winther, 2012/10/31 12:24:22]

Also bad name here.

[ahe, 2012/10/31 14:00:09]

Done.

+    parseBodyCode(text, (parser, tokens) => parser.parseMember(tokens), lc: lc);
 
 class MockFile extends SourceFile {
   MockFile(text)
       : super('<string>', text);
 }
 
 Link<Element> parseUnit(String text, Compiler compiler,
                         LibraryElement library) {
   Token tokens = scan(text);
   Uri uri = new Uri.fromComponents(scheme: "source");
   var script = new Script(uri, new MockFile(text));
   var unit = new CompilationUnitElement(script, library);
   int id = 0;
   ElementListener listener = new ElementListener(compiler, unit, () => id++);
   PartialParser parser = new PartialParser(listener);
   compiler.withCurrentElement(unit, () => parser.parseUnit(tokens));
   return unit.localMembers;
 }
 
 NodeList fullParseUnit(String source) {
   return parseBodyCode(source, (parser, tokens) => parser.parseUnit(tokens));
 }
 
 // TODO(ahe): We define this method to avoid having to import
 // the scanner in the tests. We should move SourceString to another
 // location instead.
 SourceString buildSourceString(String name) {
   return new SourceString(name);
 }