Files
sdk/tests/ffi/structs_packed_test.dart
T
Daco Harkes 38e250b4d5 [ffi] Format tests/ffi/ with new style - automated
Includes all the files which required no manual treatment.

Change-Id: I3d493bcbc238a2016579a0f804d32f4829efb87b
Cq-Include-Trybots: dart/try:vm-aot-android-release-arm_x64-try,vm-aot-linux-debug-x64-try,vm-aot-linux-debug-x64c-try,vm-aot-mac-release-arm64-try,vm-aot-mac-release-x64-try,vm-aot-win-debug-x64c-try,vm-checked-mac-release-arm64-try,vm-ffi-qemu-linux-release-arm-try,vm-ffi-qemu-linux-release-riscv64-try,vm-linux-debug-ia32-try,vm-linux-debug-x64-try,vm-linux-debug-x64c-try,vm-mac-debug-arm64-try,vm-reload-linux-debug-x64-try,vm-reload-rollback-linux-debug-x64-try,vm-win-release-ia32-try
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/399102
Reviewed-by: Bob Nystrom <rnystrom@google.com>
Commit-Queue: Daco Harkes <dacoharkes@google.com>
2024-12-06 08:37:10 +00:00

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1.1 KiB
Dart

// Copyright (c) 2021, 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.
//
// SharedObjects=ffi_test_functions
import 'dart:ffi';
import "package:expect/expect.dart";
import 'dylib_utils.dart';
// Reuse compound definitions.
import 'function_structs_by_value_generated_compounds.dart';
void main() {
testSizeOfC();
testSizeOfDart();
}
final ffiTestFunctions = dlopenPlatformSpecific("ffi_test_functions");
final sizeOfStruct3BytesPackedInt = ffiTestFunctions
.lookupFunction<Uint64 Function(), int Function()>(
"SizeOfStruct3BytesPackedInt",
);
void testSizeOfC() {
Expect.equals(3, sizeOfStruct3BytesPackedInt());
}
void testSizeOfDart() {
// No packing needed to get to 3 bytes.
Expect.equals(3, sizeOf<Struct3BytesHomogeneousUint8>());
// Contents 3 bytes, but alignment forces it to be 4 bytes.
Expect.equals(4, sizeOf<Struct3BytesInt2ByteAligned>());
// Alignment gets the same content back to 3 bytes.
Expect.equals(3, sizeOf<Struct3BytesPackedInt>());
}