| // Copyright (c) 2019, 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. |
| // |
| // Dart test program for testing error handling with dart:ffi functions. |
| // |
| // SharedObjects=ffi_test_functions |
| |
| import 'dart:ffi' as ffi; |
| import 'dylib_utils.dart'; |
| import "package:expect/expect.dart"; |
| |
| main() { |
| testWrongArity(); |
| testWrongTypes(); |
| testDynamicAsFunction(); |
| testDynamicLookupFunction(); |
| } |
| |
| ffi.DynamicLibrary ffiTestFunctions = |
| dlopenPlatformSpecific("ffi_test_functions"); |
| |
| typedef NativeBinaryOp = ffi.Int32 Function(ffi.Int32, ffi.Int32); |
| typedef BinaryOp = int Function(int, int); |
| |
| typedef NativeUnaryOp = ffi.Int64 Function(ffi.Pointer<ffi.Int64>); |
| typedef UnaryOp = int Function(ffi.Pointer<ffi.Int64>); |
| |
| void testWrongArity() { |
| { |
| dynamic sumPlus42 = |
| ffiTestFunctions.lookupFunction<NativeBinaryOp, BinaryOp>("SumPlus42"); |
| Expect.throwsNoSuchMethodError(() => sumPlus42(10)); |
| Expect.throwsNoSuchMethodError(() => sumPlus42(10, 11, 12)); |
| Expect.throwsNoSuchMethodError(() => sumPlus42(10, 11, 12, y: 13)); |
| } |
| |
| { |
| Function sumPlus42 = |
| ffiTestFunctions.lookupFunction<NativeBinaryOp, BinaryOp>("SumPlus42"); |
| Expect.throwsNoSuchMethodError(() => sumPlus42(10)); |
| Expect.throwsNoSuchMethodError(() => sumPlus42(10, 11, 12)); |
| Expect.throwsNoSuchMethodError(() => sumPlus42(10, 11, 12, y: 13)); |
| } |
| } |
| |
| void testWrongTypes() { |
| { |
| dynamic sumPlus42 = |
| ffiTestFunctions.lookupFunction<NativeBinaryOp, BinaryOp>("SumPlus42"); |
| Expect.throwsTypeError(() => sumPlus42("abc", "def")); |
| } |
| |
| { |
| Function sumPlus42 = |
| ffiTestFunctions.lookupFunction<NativeBinaryOp, BinaryOp>("SumPlus42"); |
| Expect.throwsTypeError(() => sumPlus42("abc", "def")); |
| } |
| |
| { |
| dynamic pointerOp = ffiTestFunctions |
| .lookupFunction<NativeUnaryOp, UnaryOp>("Assign1337Index1"); |
| Expect.throwsTypeError(() => pointerOp(0)); |
| } |
| } |
| |
| // Test that invoking 'Pointer.asFunction' with a dynamic receiver type throws |
| // an exception. |
| void testDynamicAsFunction() { |
| dynamic x = ffi.nullptr.cast<ffi.NativeFunction<ffi.Void Function()>>(); |
| Expect.throwsUnsupportedError(() { |
| x.asFunction<void Function()>(); |
| }); |
| } |
| |
| // Test that invoking 'DynamicLibrary.lookupFunction' with a dynamic receiver |
| // type throws an exception. |
| void testDynamicLookupFunction() { |
| dynamic lib = ffiTestFunctions; |
| Expect.throwsUnsupportedError(() { |
| lib.lookupFunction<ffi.Void Function(), void Function()>("_"); |
| }); |
| } |