Files
sdk/tests/ffi/cstring.dart
T
Samir Jindel 580f44aa83 [vm] Enable running FFI tests on Android in JIT-mode.
* Move FFI tests into a separate test suite.
  They never belonged in standalone_2/ since they are not only available in
  the standalone VM. Also, we want to have a separate status file.

* Add new "SharedObjects" option to test files to copy needed shared objects
  to the Android device for testing.

* Add support to compiler/runtime_configuration.dart for testing JIT-mode on Android.

* Add new configurations and builders to test_matrix.json to test JIT-mode on Android.

* Clean up status file entries for FFI (we didn't need to special-case stress & subtype tests).

Change-Id: Ifb32ef7051754f477d00ecd7a0f9b19ca8a66eae
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/97334
Commit-Queue: Samir Jindel <sjindel@google.com>
Reviewed-by: William Hesse <whesse@google.com>
Reviewed-by: Daco Harkes <dacoharkes@google.com>
2019-03-25 16:14:18 +00:00

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Dart

// Copyright (c) 2019, 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 FfiTest;
import 'dart:convert';
import 'dart:ffi' as ffi;
/// Sample non-struct subtype of Pointer for dart:ffi library.
class CString extends ffi.Pointer<ffi.Uint8> {
CString elementAt(int index) => super.elementAt(index).cast();
String fromUtf8() {
List<int> units = [];
int len = 0;
while (true) {
int char = elementAt(len++).load<int>();
if (char == 0) break;
units.add(char);
}
return Utf8Decoder().convert(units);
}
factory CString.toUtf8(String s) {
CString result = ffi.allocate<ffi.Uint8>(count: s.length + 1).cast();
List<int> units = Utf8Encoder().convert(s);
for (int i = 0; i < s.length; i++) result.elementAt(i).store(units[i]);
result.elementAt(s.length).store(0);
return result;
}
}