Daco Harkes
546ddc645e
Change-Id: Iaa29e2df68875fbb363ab2ac5cd59cc99e65532b Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/422102 Auto-Submit: Daco Harkes <dacoharkes@google.com> Commit-Queue: Bob Nystrom <rnystrom@google.com> Reviewed-by: Bob Nystrom <rnystrom@google.com> Commit-Queue: Daco Harkes <dacoharkes@google.com>
54 lines
1.5 KiB
Dart
54 lines
1.5 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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//
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// Dart test program for testing dart:ffi struct pointers.
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//
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// VMOptions=--deterministic
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//
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// SharedObjects=ffi_test_functions
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//
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// TODO(37295): Merge this file with regress_37511_test.dart when callback
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// support lands.
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import 'dart:ffi';
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import 'ffi_test_helpers.dart';
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/// Estimate of how many allocations functions in `functionsToTest` do at most.
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const gcAfterNAllocationsMax = 10;
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void main() {
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for (Function() f in functionsToTest) {
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f(); // Ensure code is compiled.
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for (int n = 1; n <= gcAfterNAllocationsMax; n++) {
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collectOnNthAllocation(n);
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f();
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}
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}
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}
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final List<Function()> functionsToTest = [
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// Callback trampolines.
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doFromFunction,
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() => callbackSmallDouble(dartFunctionPointer),
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];
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// Callback trampoline helpers.
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typedef NativeCallbackTest = Int32 Function(Pointer);
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typedef NativeCallbackTestFn = int Function(Pointer);
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final callbackSmallDouble = ffiTestFunctions
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.lookupFunction<NativeCallbackTest, NativeCallbackTestFn>(
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"TestSimpleMultiply",
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);
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typedef SimpleMultiplyType = Double Function(Double);
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double simpleMultiply(double x) => x * 1.337;
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final doFromFunction = () =>
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Pointer.fromFunction<SimpleMultiplyType>(simpleMultiply, 0.0);
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final dartFunctionPointer = doFromFunction();
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