Rename blahHandler to onBlah throughout dart:io.

tests/standalone/src/DirectoryTest.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.
 //
 // Directory listing test.
 
 #import("dart:io");
 #import("dart:isolate");
 
 class DirectoryTest {
   static void testListing() {
     bool listedDir = false;
     bool listedFile = false;
 
     Directory directory = new Directory("");
     directory.createTempSync();
     Directory subDirectory = new Directory("${directory.path}/subdir");
     Expect.isFalse(subDirectory.existsSync());
     subDirectory.createSync();
     File f = new File('${subDirectory.path}/file.txt');
     Expect.isFalse(f.existsSync());
     f.createSync();
 
-    directory.dirHandler = (dir) {
+    directory.onDir = (dir) {
       listedDir = true;
       Expect.isTrue(dir.contains(directory.path));
       Expect.isTrue(dir.contains('subdir'));
     };
 
-    directory.fileHandler = (f) {
+    directory.onFile = (f) {
       listedFile = true;
       Expect.isTrue(f.contains(directory.path));
       Expect.isTrue(f.contains('subdir'));
       Expect.isTrue(f.contains('file.txt'));
     };
 
-    directory.doneHandler = (completed) {
+    directory.onDone = (completed) {
       Expect.isTrue(completed, "directory listing did not complete");
       Expect.isTrue(listedDir, "directory not found");
       Expect.isTrue(listedFile, "file not found");
       directory.delete(recursive: true);
-      directory.deleteHandler = () {
+      directory.onDelete = () {
         f.exists();
-        f.existsHandler = (exists) => Expect.isFalse(exists);
+        f.onExists = (exists) => Expect.isFalse(exists);
         directory.exists();
-        directory.existsHandler = (exists) => Expect.isFalse(exists);
+        directory.onExists = (exists) => Expect.isFalse(exists);
         subDirectory.exists();
-        subDirectory.existsHandler = (exists) => Expect.isFalse(exists);
+        subDirectory.onExists = (exists) => Expect.isFalse(exists);
       };
     };
 
-    directory.errorHandler = (error) {
+    directory.onError = (error) {
       Expect.fail("error listing directory: $error");
     };
 
     directory.list(recursive: true);
 
     // Listing is asynchronous, so nothing should be listed at this
     // point.
     Expect.isFalse(listedDir);
     Expect.isFalse(listedFile);
   }
 
   static void testListNonExistent() {
     Directory d = new Directory("");
-    d.errorHandler = (error) {
+    d.onError = (error) {
       Expect.fail("Directory error: $error");
     };
     d.createTemp();
-    d.createTempHandler = () {
+    d.onCreateTemp = () {
       d.delete();
-      d.deleteHandler = () {
+      d.onDelete = () {
         // Test that listing a non-existing directory fails.
-        d.errorHandler = (error) {
+        d.onError = (error) {
           // TODO(ager): When directory errors have been changed to
           // post back exceptions, check that we get the right exception
           // type here.
         };
-        d.fileHandler = (file) {
+        d.onFile = (file) {
           Expect.fail("Listing of non-existing directory should fail");
         };
-        d.fileHandler = (dir) {
+        d.onFile = (dir) {
           Expect.fail("Listing of non-existing directory should fail");
         };
-        d.doneHandler = (done) {
+        d.onDone = (done) {
           Expect.isFalse(done);
         };
         d.list();
         d.list(recursive: true);
       };
     };
   }
 
   static void testListTooLongName() {
     Directory d = new Directory("");
-    d.errorHandler = (error) {
+    d.onError = (error) {
       Expect.fail("Directory error: $error");
     };
     d.createTemp();
-    d.createTempHandler = () {
+    d.onCreateTemp = () {
       var subDirName = 'subdir';
       var subDir = new Directory("${d.path}/$subDirName");
-      subDir.errorHandler = (error) {
+      subDir.onError = (error) {
         Expect.fail("Directory error: $error");
       };
       subDir.create();
-      subDir.createHandler = () {
+      subDir.onCreate = () {
         // Construct a long string of the form
         // 'tempdir/subdir/../subdir/../subdir'.
         var buffer = new StringBuffer();
         buffer.add(subDir.path);
         for (var i = 0; i < 1000; i++) {
           buffer.add("/../${subDirName}");
         }
         var long = new Directory("${buffer.toString()}");
         var errors = 0;
-        long.errorHandler = (error) {
+        long.onError = (error) {
           // TODO(ager): When directory errors have been changed to
           // post back exceptions, check that we get the right exception
           // type here.
           if (++errors == 2) {
             d.delete(recursive: true);
           }
         };
-        long.fileHandler = (file) {
+        long.onFile = (file) {
           Expect.fail("Listing of non-existing directory should fail");
         };
-        long.fileHandler = (dir) {
+        long.onFile = (dir) {
           Expect.fail("Listing of non-existing directory should fail");
         };
-        long.doneHandler = (done) {
+        long.onDone = (done) {
           Expect.isFalse(done);
         };
         long.list();
         long.list(recursive: true);
       };
     };
   }
 
   static void testDeleteNonExistent() {
     Directory d = new Directory("");
-    d.errorHandler = (error) {
+    d.onError = (error) {
       Expect.fail("Directory error: $error");
     };
     d.createTemp();
-    d.createTempHandler = () {
+    d.onCreateTemp = () {
       d.delete();
-      d.deleteHandler = () {
+      d.onDelete = () {
         // Test that deleting a non-existing directory fails.
-        d.errorHandler = (error) {
+        d.onError = (error) {
           // TODO(ager): When directory errors have been changed to
           // post back exceptions, check that we get the right exception
           // type here.
         };
-        d.deleteHandler = () {
+        d.onDelete = () {
           Expect.fail("Deletion of non-existing directory should fail");
         };
         d.delete();
         d.delete(recursive: true);
       };
     };
   }
 
   static void testDeleteTooLongName() {
     Directory d = new Directory("");
-    d.errorHandler = (error) {
+    d.onError = (error) {
       Expect.fail("Directory error: $error");
     };
     d.createTemp();
-    d.createTempHandler = () {
+    d.onCreateTemp = () {
       var subDirName = 'subdir';
       var subDir = new Directory("${d.path}/$subDirName");
-      subDir.errorHandler = (error) {
+      subDir.onError = (error) {
         Expect.fail("Directory error: $error");
       };
       subDir.create();
-      subDir.createHandler = () {
+      subDir.onCreate = () {
         // Construct a long string of the form
         // 'tempdir/subdir/../subdir/../subdir'.
         var buffer = new StringBuffer();
         buffer.add(subDir.path);
         for (var i = 0; i < 1000; i++) {
           buffer.add("/../${subDirName}");
         }
         var long = new Directory("${buffer.toString()}");
         var errors = 0;
-        long.errorHandler = (error) {
+        long.onError = (error) {
           // TODO(ager): When directory errors have been changed to
           // post back exceptions, check that we get the right exception
           // type here.
           if (++errors == 2) {
             d.delete(recursive: true);
           }
         };
-        long.deleteHandler = () {
+        long.onDelete = () {
           Expect.fail("Deletion of a directory with a long name should fail");
         };
         long.delete();
         long.delete(recursive:true);
       };
     };
   }
 
   static void testDeleteNonExistentSync() {
     Directory d = new Directory("");
@@ skipping 16 matching lines @@
     for (var i = 0; i < 1000; i++) {
       buffer.add("/../${subDirName}");
     }
     var long = new Directory("${buffer.toString()}");
     Expect.throws(long.deleteSync);
     Expect.throws(() => long.deleteSync(recursive:true));
   }
 
   static void testExistsCreateDelete() {
     Directory d = new Directory("");
-    d.createTempHandler = () {
-      d.existsHandler = (bool exists) {
+    d.onCreateTemp = () {
+      d.onExists = (bool exists) {
         Expect.isTrue(exists);
         Directory created = new Directory("${d.path}/subdir");
-        created.createHandler = () {
-          created.existsHandler = (bool exists) {
+        created.onCreate = () {
+          created.onExists = (bool exists) {
             Expect.isTrue(exists);
-            created.deleteHandler = () {
-              created.existsHandler = (bool exists) {
+            created.onDelete = () {
+              created.onExists = (bool exists) {
                 Expect.isFalse(exists);
-                d.deleteHandler = () {
-                  d.existsHandler = (bool exists) {
+                d.onDelete = () {
+                  d.onExists = (bool exists) {
                     Expect.isFalse(exists);
                   };
                   d.exists();
                 };
                 d.delete();
               };
               created.exists();
             };
             created.delete();
           };
@@ skipping 27 matching lines @@
     bool emptyTemplateTestRunning = false;
 
     // Stages 0 through 2 run twice, the second time with an empty path.
     Function stage0;
     Function stage1a;
     Function stage1b;
     Function stage2;
     Function stage3;  // Loops to stage 0.
 
     Function error(String message) {
-      Expect.fail("Directory errorHandler: $message");
+      Expect.fail("Directory onError: $message");
     }
 
     stage0 = () {
-      tempDir1.createTempHandler = stage1a;
-      tempDir1.errorHandler = error;
+      tempDir1.onCreateTemp = stage1a;
+      tempDir1.onError = error;
       tempDir1.createTemp();
-      tempDir2.createTempHandler = stage1b;
-      tempDir2.errorHandler = error;
+      tempDir2.onCreateTemp = stage1b;
+      tempDir2.onError = error;
       tempDir2.createTemp();
     };
 
     stage1a = () {
       stage1aDone = true;
       Expect.isTrue(tempDir1.existsSync());
       if (stage1bDone) {
         stage2();
       }
     };
@@ skipping 31 matching lines @@
     if (new Directory("/tmp").existsSync()) {
       stage0();
     } else {
       emptyTemplateTestRunning = true;
       stage3();
     }
   }
 
   static void testCreateDeleteTemp() {
     Directory tempDirectory = new Directory("");
-    tempDirectory.createTempHandler = () {
+    tempDirectory.onCreateTemp = () {
       String filename = tempDirectory.path +
           new Platform().pathSeparator() + "dart_testfile";
       File file = new File(filename);
       Expect.isFalse(file.existsSync());
-      file.errorHandler = (error) {
-        Expect.fail("testCreateTemp file.errorHandler called: $error");
+      file.onError = (error) {
+        Expect.fail("testCreateTemp file.onError called: $error");
       };
-      file.createHandler = () {
-        file.existsHandler = (bool exists) {
+      file.onCreate = () {
+        file.onExists = (bool exists) {
           Expect.isTrue(exists);
           // Try to delete the directory containing the file - should throw.
           Expect.throws(tempDirectory.deleteSync);
           Expect.isTrue(tempDirectory.existsSync());
 
           // Delete the file, and then delete the directory.
-          file.deleteHandler = () {
+          file.onDelete = () {
             tempDirectory.deleteSync();
             Expect.isFalse(tempDirectory.existsSync());
           };
           file.delete();
         };
         file.exists();
       };
       file.create();
     };
     tempDirectory.createTemp();
@@ skipping 15 matching lines @@
 }
 
 
 class NestedTempDirectoryTest {
   List<Directory> createdDirectories;
   Directory current;
 
   NestedTempDirectoryTest.run()
       : createdDirectories = new List<Directory>(),
         current = new Directory("") {
-    current.createTempHandler = createPhaseCallback;
-    current.errorHandler = errorCallback;
+    current.onCreateTemp = createPhaseCallback;
+    current.onError = errorCallback;
     current.createTemp();
   }
 
   void errorCallback(error) {
     Expect.fail("Error callback called in NestedTempDirectoryTest: $error");
   }
 
   void createPhaseCallback() {
     createdDirectories.add(current);
     int nestingDepth = 6;
     var os = new Platform().operatingSystem();
     if (os == "windows") nestingDepth = 2;
     if (createdDirectories.length < nestingDepth) {
       current = new Directory(
           current.path + "/nested_temp_dir_${createdDirectories.length}_");
-      current.errorHandler = errorCallback;
-      current.createTempHandler = createPhaseCallback;
+      current.onError = errorCallback;
+      current.onCreateTemp = createPhaseCallback;
       current.createTemp();
     } else {
       deletePhaseCallback();
     }
   }
 
   void deletePhaseCallback() {
     if (!createdDirectories.isEmpty()) {
       current = createdDirectories.removeLast();
       current.deleteSync();
@@ skipping 33 matching lines @@
 testCreateTempError() {
   var location = illegalTempDirectoryLocation();
   if (location == null) return;
 
   var resultPort = new ReceivePort.singleShot();
   resultPort.receive((String message, ignored) {
       Expect.equals("error", message);
     });
 
   Directory dir = new Directory(location);
-  dir.errorHandler = (error) { resultPort.toSendPort().send("error"); };
-  dir.createTempHandler = () { resultPort.toSendPort().send("success"); };
+  dir.onError = (error) { resultPort.toSendPort().send("error"); };
+  dir.onCreateTemp = () { resultPort.toSendPort().send("success"); };
   dir.createTemp();
 }
 
 
 main() {
   DirectoryTest.testMain();
   NestedTempDirectoryTest.testMain();
   testCreateTempErrorSync();
   testCreateTempError();
 }