Leaf Petersen
745f112ef6
Opt an initial batch of files under samples, samples-dev, utils, and runtime/tools/dartfuzz out of null safety in preparation for switching the flag on by default. Change-Id: Icdfd52a5a969e678a7205903332f73fe3841c223 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/166960 Reviewed-by: Daco Harkes <dacoharkes@google.com> Commit-Queue: Leaf Petersen <leafp@google.com>
84 lines
2.5 KiB
Dart
84 lines
2.5 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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// @dart = 2.9
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import 'dart:ffi';
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import 'coordinate.dart';
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import 'dylib_utils.dart';
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typedef NativeCoordinateOp = Pointer<Coordinate> Function(Pointer<Coordinate>);
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typedef CoordinateTrice = Pointer<Coordinate> Function(
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Pointer<NativeFunction<NativeCoordinateOp>>, Pointer<Coordinate>);
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typedef BinaryOp = int Function(int, int);
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typedef NativeIntptrBinOp = IntPtr Function(IntPtr, IntPtr);
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typedef NativeIntptrBinOpLookup = Pointer<NativeFunction<NativeIntptrBinOp>>
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Function();
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typedef NativeApplyTo42And74Type = IntPtr Function(
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Pointer<NativeFunction<NativeIntptrBinOp>>);
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typedef ApplyTo42And74Type = int Function(
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Pointer<NativeFunction<NativeIntptrBinOp>>);
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int myPlus(int a, int b) {
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print("myPlus");
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print(a);
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print(b);
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return a + b;
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}
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main() {
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print('start main');
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DynamicLibrary ffiTestFunctions =
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dlopenPlatformSpecific("ffi_test_functions");
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{
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// Pass a c pointer to a c function as an argument to a c function.
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Pointer<NativeFunction<NativeCoordinateOp>> transposeCoordinatePointer =
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ffiTestFunctions.lookup("TransposeCoordinate");
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Pointer<NativeFunction<CoordinateTrice>> p2 =
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ffiTestFunctions.lookup("CoordinateUnOpTrice");
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CoordinateTrice coordinateUnOpTrice = p2.asFunction();
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Coordinate c1 = Coordinate.allocate(10.0, 20.0, nullptr);
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c1.next = c1.addressOf;
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Coordinate result =
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coordinateUnOpTrice(transposeCoordinatePointer, c1.addressOf).ref;
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print(result.runtimeType);
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print(result.x);
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print(result.y);
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}
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{
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// Return a c pointer to a c function from a c function.
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Pointer<NativeFunction<NativeIntptrBinOpLookup>> p14 =
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ffiTestFunctions.lookup("IntptrAdditionClosure");
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NativeIntptrBinOpLookup intptrAdditionClosure = p14.asFunction();
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Pointer<NativeFunction<NativeIntptrBinOp>> intptrAdditionPointer =
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intptrAdditionClosure();
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BinaryOp intptrAddition = intptrAdditionPointer.asFunction();
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print(intptrAddition(10, 27));
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}
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{
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Pointer<NativeFunction<NativeIntptrBinOp>> pointer =
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Pointer.fromFunction(myPlus, 0);
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print(pointer);
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Pointer<NativeFunction<NativeApplyTo42And74Type>> p17 =
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ffiTestFunctions.lookup("ApplyTo42And74");
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ApplyTo42And74Type applyTo42And74 = p17.asFunction();
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int result = applyTo42And74(pointer);
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print(result);
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}
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print("end main");
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}
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