Make isEmpty a getter.

utils/tests/pub/test_pub.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.
 
 /**
  * Test infrastructure for testing pub. Unlike typical unit tests, most pub
  * tests are integration tests that stage some stuff on the file system, run
  * pub, and then validate the results. This library provides an API to build
  * tests like that.
  */
@@ skipping 854 matching lines @@
         Expect.fail('File $file should contain:\n\n$contents\n\n'
                     'but contained:\n\n$text');
       });
     });
   }
 
   /**
    * Loads the contents of the file.
    */
   InputStream load(List<String> path) {
-    if (!path.isEmpty()) {
+    if (!path.isEmpty) {
       var joinedPath = Strings.join(path, '/');
       throw "Can't load $joinedPath from within $name: not a directory.";
     }
 
     var stream = new ListInputStream();
     stream.write(contents.charCodes());
     stream.markEndOfStream();
     return stream;
   }
 }
@@ skipping 50 matching lines @@
 
       // If they are all valid, the directory is valid.
       return Futures.wait(entryFutures).transform((entries) => null);
     });
   }
 
   /**
    * Loads [path] from within this directory.
    */
   InputStream load(List<String> path) {
-    if (path.isEmpty()) {
+    if (path.isEmpty) {
       throw "Can't load the contents of $name: is a directory.";
     }
 
     for (var descriptor in contents) {
       if (descriptor.name == path[0]) {
         return descriptor.load(path.getRange(1, path.length - 1));
       }
     }
 
     throw "Directory $name doesn't contain ${Strings.join(path, '/')}.";
@@ skipping 159 matching lines @@
   }
 
   Future delete(dir) {
     throw new UnsupportedError('');
   }
 
   /**
    * Loads the contents of this tar file.
    */
   InputStream load(List<String> path) {
-    if (!path.isEmpty()) {
+    if (!path.isEmpty) {
       var joinedPath = Strings.join(path, '/');
       throw "Can't load $joinedPath from within $name: not a directory.";
     }
 
     var sinkStream = new ListInputStream();
     var tempDir;
     // TODO(nweiz): propagate any errors to the return value. See issue 3657.
     createTempDir().chain((_tempDir) {
       tempDir = _tempDir;
       return create(tempDir);
@@ skipping 14 matching lines @@
   Future create(dir) => new Future.immediate(null);
   Future delete(dir) => new Future.immediate(null);
 
   Future validate(String dir) {
     return exists(join(dir, name)).transform((exists) {
       if (exists) Expect.fail('File $name in $dir should not exist.');
     });
   }
 
   InputStream load(List<String> path) {
-    if (path.isEmpty()) {
+    if (path.isEmpty) {
       throw "Can't load the contents of $name: it doesn't exist.";
     } else {
       throw "Can't load ${Strings.join(path, '/')} from within $name: $name "
         "doesn't exist.";
     }
   }
 }
 
 /**
  * Takes a simple data structure (composed of [Map]s, [List]s, scalar objects,
@@ skipping 29 matching lines @@
 }
 
 /**
  * Schedules a callback to be called after Pub is run with [runPub], even if it
  * fails.
  */
 void _scheduleCleanup(_ScheduledEvent event) {
   if (_scheduledCleanup == null) _scheduledCleanup = [];
   _scheduledCleanup.add(event);
 }