tests/ffi/ffi_native_test.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';

final nativeLib = dlopenPlatformSpecific('ffi_test_functions');
final getRootLibraryUrl = nativeLib
    .lookupFunction<Handle Function(), Object Function()>('GetRootLibraryUrl');
final setFfiNativeResolverForTest = nativeLib
    .lookupFunction<Void Function(Handle), void Function(Object)>('SetFfiNativeResolverForTest');

@FfiNative<IntPtr Function(IntPtr)>('ReturnIntPtr')
external int returnIntPtr(int x);

@FfiNative<IntPtr Function(IntPtr)>('ReturnIntPtr', isLeaf: true)
external int returnIntPtrLeaf(int x);

void main() {
  // Register test resolver for top-level functions above.
  final root_lib_url = getRootLibraryUrl();
  setFfiNativeResolverForTest(root_lib_url);

  Expect.equals(123, returnIntPtr(123));
  Expect.equals(123, returnIntPtrLeaf(123));
}