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https://github.com/dart-lang/sdk
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a45276ab91
This can only be landed when `Allocator`, `Opaque`, and `AllocatorAlloc` have rolled into Flutter/engine, that into Flutter/flutter, and into g3. Deletes all the copies of `_CallocAllocator` and uses the one from `package:ffi` instead. Bug: https://github.com/dart-lang/sdk/issues/44622 Bug: https://github.com/dart-lang/sdk/issues/43974 Bug: https://github.com/dart-lang/sdk/issues/44621 Bug: https://github.com/dart-lang/sdk/issues/38721 Change-Id: I486034b379b5a63cad4aefd503ccd0f2ce5dd45e Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/180188 Commit-Queue: Daco Harkes <dacoharkes@google.com> Reviewed-by: Aske Simon Christensen <askesc@google.com>
104 lines
2.3 KiB
Dart
104 lines
2.3 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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// This tests the non trampoline aspects of nested structs.
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//
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// SharedObjects=ffi_test_functions
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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 'dylib_utils.dart';
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final ffiTestFunctions = dlopenPlatformSpecific("ffi_test_functions");
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void main() {
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for (int i = 0; i < 10; ++i) {
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testSizeOf();
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testAllocate();
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testRead();
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testWrite();
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testCopy();
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}
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}
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class Struct4BytesHomogeneousInt16 extends Struct {
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@Int16()
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external int a0;
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@Int16()
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external int a1;
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String toString() => "(${a0}, ${a1})";
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}
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class Struct8BytesNestedInt extends Struct {
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external Struct4BytesHomogeneousInt16 a0;
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external Struct4BytesHomogeneousInt16 a1;
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String toString() => "(${a0}, ${a1})";
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}
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void testSizeOf() {
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print(sizeOf<Struct8BytesNestedInt>());
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Expect.equals(8, sizeOf<Struct8BytesNestedInt>());
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}
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void testAllocate() {
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final p = calloc<Struct8BytesNestedInt>();
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Expect.type<Pointer<Struct8BytesNestedInt>>(p);
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print(p);
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calloc.free(p);
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}
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/// Test that reading does not segfault, even uninitialized.
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void testRead() {
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print("read");
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final p = calloc<Struct8BytesNestedInt>();
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print(p);
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print(p.ref.runtimeType);
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print(p.address);
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print(p.ref.a0.runtimeType);
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print(p.ref.a0.a0);
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calloc.free(p);
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print("read");
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}
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void testWrite() {
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print("write");
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final p = calloc<Struct8BytesNestedInt>(2);
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p[0].a0.a0 = 12;
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p[0].a0.a1 = 13;
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p[0].a1.a0 = 14;
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p[0].a1.a1 = 15;
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p[1].a0.a0 = 16;
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p[1].a0.a1 = 17;
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p[1].a1.a0 = 18;
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p[1].a1.a1 = 19;
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Expect.equals(12, p[0].a0.a0);
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Expect.equals(13, p[0].a0.a1);
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Expect.equals(14, p[0].a1.a0);
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Expect.equals(15, p[0].a1.a1);
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Expect.equals(16, p[1].a0.a0);
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Expect.equals(17, p[1].a0.a1);
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Expect.equals(18, p[1].a1.a0);
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Expect.equals(19, p[1].a1.a1);
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calloc.free(p);
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print("written");
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}
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void testCopy() {
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print("copy");
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final p = calloc<Struct8BytesNestedInt>();
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p.ref.a0.a0 = 12;
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p.ref.a0.a1 = 13;
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p.ref.a1 = p.ref.a0;
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Expect.equals(12, p.ref.a1.a0);
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Expect.equals(13, p.ref.a1.a1);
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calloc.free(p);
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print("copied");
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}
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