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https://github.com/dart-lang/sdk
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40f7a11d89
This enables adding the `external` keyword to struct fields, which enables use in nnbd (weak mode). Closes: https://github.com/dart-lang/sdk/issues/40247 External fields are not implemented in the analyzer yet: https://github.com/dart-lang/sdk/issues/41940 Change-Id: I9d88acbdabf73ca63a6ad3d549930aa3c97cb53f Cq-Include-Trybots: luci.dart.try: analyzer-nnbd-linux-release-try,dart2js-nnbd-linux-x64-chrome-try,ddc-nnbd-linux-release-chrome-try,front-end-nnbd-linux-release-x64-try,vm-kernel-nnbd-linux-debug-x64-try,vm-kernel-nnbd-linux-release-x64-try,vm-kernel-precomp-nnbd-linux-release-x64-try Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/148242 Commit-Queue: Daco Harkes <dacoharkes@google.com> Reviewed-by: Alexander Markov <alexmarkov@google.com>
66 lines
1.4 KiB
Dart
66 lines
1.4 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:expect/expect.dart";
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import "package:ffi/ffi.dart";
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main(List<String> arguments) {
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for (int i = 0; i < 100; i++) {
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testStoreLoad();
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testReifiedGeneric();
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}
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}
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testStoreLoad() {
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final p = allocate<Int8>(count: 2);
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p.value = 10;
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Expect.equals(10, p.value);
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p[1] = 20;
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Expect.equals(20, p[1]);
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if (sizeOf<IntPtr>() == 4) {
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// Test round tripping.
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Expect.equals(20, p.elementAt(0x100000001).value);
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Expect.equals(20, p[0x100000001]);
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}
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// Test negative index.
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final pUseNegative = p.elementAt(1);
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Expect.equals(10, pUseNegative[-1]);
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final p1 = allocate<Double>(count: 2);
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p1.value = 10.0;
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Expect.approxEquals(10.0, p1.value);
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p1[1] = 20.0;
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Expect.approxEquals(20.0, p1[1]);
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free(p1);
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final p2 = allocate<Pointer<Int8>>(count: 2);
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p2.value = p;
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Expect.equals(p, p2.value);
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p2[1] = p;
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Expect.equals(p, p2[1]);
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free(p2);
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free(p);
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final p3 = allocate<Foo>();
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Foo foo = p3.ref;
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foo.a = 1;
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Expect.equals(1, foo.a);
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free(p3);
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}
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testReifiedGeneric() {
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final p = allocate<Pointer<Int8>>();
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Pointer<Pointer<NativeType>> p2 = p;
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Expect.isTrue(p2.value is Pointer<Int8>);
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free(p);
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}
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class Foo extends Struct {
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@Int8()
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external int a;
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}
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