Daco Harkes
b62e715073
Split off from https://dart-review.googlesource.com/c/sdk/+/140290/33 to make that CL smaller and review the test generator separately. Because of the amount of corner cases in the calling conventions that need to be covered, the tests are generated, rather than hand-written. The tests are tested in the dependent CL. Tests are ignored in status file and are un-ignored in dependent CL. Change-Id: I5507f52229793fdf07da3066b49045fdb703a69d Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/168829 Commit-Queue: Daco Harkes <dacoharkes@google.com> Reviewed-by: Martin Kustermann <kustermann@google.com>
72 lines
2.3 KiB
Dart
72 lines
2.3 KiB
Dart
// Copyright (c) 2020, 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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//
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// SharedObjects=ffi_test_functions
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//
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// VMOptions=--deterministic --optimization-counter-threshold=5 --use-slow-path --stacktrace-every=100
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import 'dart:ffi';
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import "package:expect/expect.dart";
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import "package:ffi/ffi.dart";
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// Reuse the struct classes.
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import 'function_structs_by_value_generated_test.dart';
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void main() {
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for (int i = 0; i < 10; i++) {
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recursiveTest(10);
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recursiveTest(11);
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}
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}
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void recursiveTest(int recursionCounter) {
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final struct = allocate<Struct20BytesHomogeneousInt32>().ref;
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struct.a0 = 1;
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struct.a1 = 2;
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struct.a2 = 3;
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struct.a3 = 4;
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struct.a4 = 5;
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final result = dartPassStructRecursive(recursionCounter, struct);
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Expect.equals(struct.a0 + recursionCounter * 2, result.a0);
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Expect.equals(struct.a1, result.a1);
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Expect.equals(struct.a2, result.a2);
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Expect.equals(struct.a3, result.a3);
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Expect.equals(struct.a4, result.a4);
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free(struct.addressOf);
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}
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Struct20BytesHomogeneousInt32 dartPassStructRecursive(
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int recursionCounter, Struct20BytesHomogeneousInt32 struct) {
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print("callbackPassStructRecurisive($recursionCounter, $struct)");
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struct.a0++;
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final structA0Saved = struct.a0;
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if (recursionCounter <= 0) {
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print("returning");
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return struct;
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}
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final result =
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cPassStructRecursive(recursionCounter - 1, struct, functionPointer);
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result.a0++;
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// Check struct.a0 is not modified by Dart->C call.
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Expect.equals(structA0Saved, struct.a0);
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// Check struct.a0 is not modified by C->Dart callback, if so struct.a4 == 0.
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Expect.notEquals(0, struct.a4);
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return result;
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}
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final functionPointer = Pointer.fromFunction<
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Struct20BytesHomogeneousInt32 Function(
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Int64, Struct20BytesHomogeneousInt32)>(dartPassStructRecursive);
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final cPassStructRecursive = ffiTestFunctions.lookupFunction<
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Struct20BytesHomogeneousInt32 Function(Int64 recursionCounter,
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Struct20BytesHomogeneousInt32 struct, Pointer callbackAddress),
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Struct20BytesHomogeneousInt32 Function(int recursionCounter,
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Struct20BytesHomogeneousInt32, Pointer)>("PassStructRecursive");
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