Daco Harkes
546ddc645e
Change-Id: Iaa29e2df68875fbb363ab2ac5cd59cc99e65532b Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/422102 Auto-Submit: Daco Harkes <dacoharkes@google.com> Commit-Queue: Bob Nystrom <rnystrom@google.com> Reviewed-by: Bob Nystrom <rnystrom@google.com> Commit-Queue: Daco Harkes <dacoharkes@google.com>
132 lines
3.4 KiB
Dart
132 lines
3.4 KiB
Dart
// Copyright (c) 2020, 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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//
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// Dart test program for testing getters/setters in structs rather than fields.
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//
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// VMOptions=--deterministic --optimization-counter-threshold=50
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import 'dart:ffi';
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import "package:expect/expect.dart";
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import "package:ffi/ffi.dart";
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import 'coordinate_nnbd_workaround.dart';
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void main() {
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for (int i = 0; i < 100; i++) {
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testStructAllocate();
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testStructFromAddress();
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testStructFromAddressWithOperator();
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testStructWithNulls();
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testUtf8();
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}
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}
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/// allocates each coordinate separately in c memory
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void testStructAllocate() {
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final c1 = calloc<Coordinate>()
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..ref.x = 10.0
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..ref.y = 10.0;
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final c2 = calloc<Coordinate>()
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..ref.x = 20.0
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..ref.y = 20.0
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..ref.next = c1;
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final c3 = calloc<Coordinate>()
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..ref.x = 30.0
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..ref.y = 30.0
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..ref.next = c2;
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c1.ref.next = c3;
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Coordinate currentCoordinate = c1.ref;
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Expect.equals(10.0, currentCoordinate.x);
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currentCoordinate = currentCoordinate.next.ref;
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Expect.equals(30.0, currentCoordinate.x);
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currentCoordinate = currentCoordinate.next.ref;
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Expect.equals(20.0, currentCoordinate.x);
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currentCoordinate = currentCoordinate.next.ref;
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Expect.equals(10.0, currentCoordinate.x);
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calloc.free(c1);
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calloc.free(c2);
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calloc.free(c3);
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}
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/// allocates coordinates consecutively in c memory
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void testStructFromAddress() {
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Pointer<Coordinate> c1 = calloc(3);
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Pointer<Coordinate> c2 = c1 + 1;
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Pointer<Coordinate> c3 = c1 + 2;
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c1.ref
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..x = 10.0
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..y = 10.0
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..next = c3;
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c2.ref
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..x = 20.0
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..y = 20.0
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..next = c1;
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c3.ref
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..x = 30.0
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..y = 30.0
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..next = c2;
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Coordinate currentCoordinate = c1.ref;
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Expect.equals(10.0, currentCoordinate.x);
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currentCoordinate = currentCoordinate.next.ref;
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Expect.equals(30.0, currentCoordinate.x);
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currentCoordinate = currentCoordinate.next.ref;
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Expect.equals(20.0, currentCoordinate.x);
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currentCoordinate = currentCoordinate.next.ref;
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Expect.equals(10.0, currentCoordinate.x);
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calloc.free(c1);
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}
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void testStructFromAddressWithOperator() {
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Pointer<Coordinate> c1 = calloc(3);
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Pointer<Coordinate> c2 = c1 + 1;
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Pointer<Coordinate> c3 = c1 + 2;
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c1.ref
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..x = 10.0
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..y = 10.0
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..next = c3;
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c2.ref
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..x = 20.0
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..y = 20.0
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..next = c1;
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c3.ref
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..x = 30.0
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..y = 30.0
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..next = c2;
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Coordinate currentCoordinate = c1.ref;
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Expect.equals(10.0, currentCoordinate.x);
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currentCoordinate = currentCoordinate.next.ref;
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Expect.equals(30.0, currentCoordinate.x);
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currentCoordinate = currentCoordinate.next.ref;
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Expect.equals(20.0, currentCoordinate.x);
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currentCoordinate = currentCoordinate.next.ref;
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Expect.equals(10.0, currentCoordinate.x);
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calloc.free(c1);
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}
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void testStructWithNulls() {
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final coordinate = calloc<Coordinate>()
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..ref.x = 10.0
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..ref.y = 10.0;
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Expect.equals(coordinate.ref.next, nullptr);
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coordinate.ref.next = coordinate;
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Expect.notEquals(coordinate.ref.next, nullptr);
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coordinate.ref.next = nullptr;
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Expect.equals(coordinate.ref.next, nullptr);
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calloc.free(coordinate);
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}
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void testUtf8() {
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final String test = 'Hasta Mañana';
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final Pointer<Utf8> medium = test.toNativeUtf8();
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Expect.equals(test, medium.toDartString());
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calloc.free(medium);
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}
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