| // 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. |
| |
| // @dart = 2.9 |
| |
| import 'dart:ffi'; |
| |
| import "package:expect/expect.dart"; |
| import "package:ffi/ffi.dart"; |
| |
| main(List<String> arguments) { |
| for (int i = 0; i < 100; i++) { |
| testStoreLoad(); |
| testReifiedGeneric(); |
| } |
| } |
| |
| testStoreLoad() { |
| final p = calloc<Int8>(2); |
| p.value = 10; |
| Expect.equals(10, p.value); |
| p[1] = 20; |
| Expect.equals(20, p[1]); |
| if (sizeOf<IntPtr>() == 4) { |
| // Test round tripping. |
| Expect.equals(20, p.elementAt(0x100000001).value); |
| Expect.equals(20, p[0x100000001]); |
| } |
| |
| // Test negative index. |
| final pUseNegative = p.elementAt(1); |
| Expect.equals(10, pUseNegative[-1]); |
| |
| final p1 = calloc<Double>(2); |
| p1.value = 10.0; |
| Expect.approxEquals(10.0, p1.value); |
| p1[1] = 20.0; |
| Expect.approxEquals(20.0, p1[1]); |
| calloc.free(p1); |
| |
| final p2 = calloc<Pointer<Int8>>(2); |
| p2.value = p; |
| Expect.equals(p, p2.value); |
| p2[1] = p; |
| Expect.equals(p, p2[1]); |
| calloc.free(p2); |
| calloc.free(p); |
| |
| final p3 = calloc<Foo>(); |
| Foo foo = p3.ref; |
| foo.a = 1; |
| Expect.equals(1, foo.a); |
| calloc.free(p3); |
| } |
| |
| testReifiedGeneric() { |
| final p = calloc<Pointer<Int8>>(); |
| Pointer<Pointer<NativeType>> p2 = p; |
| Expect.isTrue(p2.value is Pointer<Int8>); |
| calloc.free(p); |
| } |
| |
| class Foo extends Struct { |
| @Int8() |
| int a; |
| } |