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https://github.com/dart-lang/sdk
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63d3012e68
Fixes https://dart-review.googlesource.com/c/sdk/+/118442. Also updates untested sample code in samples/ffi. Change-Id: Id40a7b8fbb35c5d989269646ebb22864cebcfcac Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/118441 Commit-Queue: Samir Jindel <sjindel@google.com> Reviewed-by: Daco Harkes <dacoharkes@google.com> Reviewed-by: Martin Kustermann <kustermann@google.com>
66 lines
1.6 KiB
Dart
66 lines
1.6 KiB
Dart
// Copyright (c) 2019, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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import 'dart:ffi';
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import 'package:ffi/ffi.dart';
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import 'coordinate.dart';
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main(List<String> arguments) {
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print('start main');
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{
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// allocates each coordinate separately in c memory
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Coordinate c1 = Coordinate(10.0, 10.0, null);
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Coordinate c2 = Coordinate(20.0, 20.0, c1);
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Coordinate c3 = Coordinate(30.0, 30.0, c2);
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c1.next = c3.addressOf;
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Coordinate currentCoordinate = c1;
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for (var i in [0, 1, 2, 3, 4]) {
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currentCoordinate = currentCoordinate.next.ref;
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print("${currentCoordinate.x}; ${currentCoordinate.y}");
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}
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free(c1.addressOf);
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free(c2.addressOf);
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free(c3.addressOf);
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}
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{
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// allocates coordinates consecutively in c memory
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Coordinate c1 = Coordinate.allocate(count: 3);
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Coordinate c2 = c1.elementAt(1);
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Coordinate c3 = c1.elementAt(2);
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c1.x = 10.0;
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c1.y = 10.0;
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c1.next = c3.addressOf;
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c2.x = 20.0;
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c2.y = 20.0;
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c2.next = c1.addressOf;
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c3.x = 30.0;
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c3.y = 30.0;
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c3.next = c2.addressOf;
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Coordinate currentCoordinate = c1;
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for (var i in [0, 1, 2, 3, 4]) {
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currentCoordinate = currentCoordinate.next.ref;
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print("${currentCoordinate.x}; ${currentCoordinate.y}");
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}
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free(c1.addressOf);
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}
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{
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Coordinate c = Coordinate(10, 10, null);
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print(c is Coordinate);
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print(c is Pointer<Void>);
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print(c is Pointer);
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free(c.addressOf);
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}
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print("end main");
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}
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