blob: 6834ee7f183c6d236451181ff702a25ec065d2fa [file] [log] [blame]
// 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
// @dart = 2.9
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() {
final ffiTestFunctions = dlopenPlatformSpecific("ffi_test_functions");
final sizeOfStruct3BytesPackedInt =
ffiTestFunctions.lookupFunction<Uint64 Function(), int Function()>(
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>());