Add typed data view creation functions on ByteBuffer.

tests/standalone/typed_data_test.dart

 // Copyright (c) 2013, 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.
 //
 // Dart test program for testing typed data.
 
 // VMOptions=--optimization_counter_threshold=10
 
 // Library tag to be able to run in html test framework.
 library TypedDataTest;
@@ skipping 285 matching lines @@
   }
   validate();
   for (int i = 0; i < bdata.lengthInBytes-7; i+=8) {
     bdata.setFloat64(i, 1.4260258159703532e-105, Endianness.LITTLE_ENDIAN);
   }
   validate(false);
 }
 
 testViewCreation() {
   var bytes = new Uint8List(1024).buffer;
-  var view = new ByteData.view(bytes, 24);
+  var view;
+  view = new ByteData.view(bytes, 24);

[Søren Gjesse, 2014/07/02 13:06:14]

Please add tests passing the length optional argument as well.

   Expect.equals(1000, view.lengthInBytes);
   view = new Uint8List.view(bytes, 24);
   Expect.equals(1000, view.lengthInBytes);
   view = new Int8List.view(bytes, 24);
   Expect.equals(1000, view.lengthInBytes);
   view = new Uint8ClampedList.view(bytes, 24);
   Expect.equals(1000, view.lengthInBytes);
   view = new Uint16List.view(bytes, 24);
   Expect.equals(1000, view.lengthInBytes);
   view = new Int16List.view(bytes, 24);
   Expect.equals(1000, view.lengthInBytes);
   view = new Uint32List.view(bytes, 24);
   Expect.equals(1000, view.lengthInBytes);
   view = new Int32List.view(bytes, 24);
   Expect.equals(1000, view.lengthInBytes);
   view = new Uint64List.view(bytes, 24);
   Expect.equals(1000, view.lengthInBytes);
   view = new Int64List.view(bytes, 24);
   Expect.equals(1000, view.lengthInBytes);
   view = new Float32List.view(bytes, 24);
   Expect.equals(1000, view.lengthInBytes);
   view = new Float64List.view(bytes, 24);
   Expect.equals(1000, view.lengthInBytes);
+
+  view = bytes.asByteData(24);
+  Expect.equals(1000, view.lengthInBytes);
+  view = bytes.asUint8List(24);
+  Expect.equals(1000, view.lengthInBytes);
+  view = bytes.asInt8List(24);
+  Expect.equals(1000, view.lengthInBytes);
+  view = bytes.asUint8ClampedList(24);
+  Expect.equals(1000, view.lengthInBytes);
+  view = bytes.asUint16List(24);
+  Expect.equals(1000, view.lengthInBytes);
+  view = bytes.asInt16List(24);
+  Expect.equals(1000, view.lengthInBytes);
+  view = bytes.asUint32List(24);
+  Expect.equals(1000, view.lengthInBytes);
+  view = bytes.asInt32List(24);
+  Expect.equals(1000, view.lengthInBytes);
+  view = bytes.asUint64List(24);
+  Expect.equals(1000, view.lengthInBytes);
+  view = bytes.asInt64List(24);
+  Expect.equals(1000, view.lengthInBytes);
+  view = bytes.asFloat32List(24);
+  Expect.equals(1000, view.lengthInBytes);
+  view = bytes.asFloat64List(24);
+  Expect.equals(1000, view.lengthInBytes);
 }
 
 testWhere() {
   var bytes = new Uint8List(13);
   bytes.setRange(0, 5, [1, 1, 1, 1, 1]);
   Expect.equals(5, bytes.where((v) => v > 0).length);
 }
 
 testCreationFromList() {
   var intList =
@@ skipping 71 matching lines @@
     testSetAtIndex(float64list, 1.4260258159703532e-105, true);
     testGetAtIndex(float64list, 1.4260258159703532e-105);
   }
   testTypedDataRange(true);
   testUnsignedTypedDataRange(true);
   testViewCreation();
   testWhere();
   testCreationFromList();
 }