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bf2691c2fe
Previously the synthetic field that holds the FfiNative function pointer was injected into the current library. This change makes sure we instead add the field to the relevant parent - Class or Library. TEST=Added regression test for name collision. Bug: https://github.com/dart-lang/sdk/issues/43889 Change-Id: Ifbf2d70de00e4748c179fe7d626c495675c2b338 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/208502 Reviewed-by: Martin Kustermann <kustermann@google.com> Commit-Queue: Clement Skau <cskau@google.com>
78 lines
2.8 KiB
Dart
78 lines
2.8 KiB
Dart
// Copyright (c) 2021, 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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// NOTE: There is no `test/ffi_2/...` version of this test since annotations
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// with type arguments isn't supported in that version of Dart.
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import 'dart:ffi';
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import 'package:expect/expect.dart';
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import 'dylib_utils.dart';
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final nativeLib = dlopenPlatformSpecific('ffi_test_functions');
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final getRootLibraryUrl = nativeLib
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.lookupFunction<Handle Function(), Object Function()>('GetRootLibraryUrl');
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final setFfiNativeResolverForTest = nativeLib
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.lookupFunction<Void Function(Handle), void Function(Object)>('SetFfiNativeResolverForTest');
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@FfiNative<IntPtr Function(IntPtr)>('ReturnIntPtr')
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external int returnIntPtr(int x);
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@FfiNative<IntPtr Function(IntPtr)>('ReturnIntPtr', isLeaf: true)
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external int returnIntPtrLeaf(int x);
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@FfiNative<IntPtr Function()>('IsThreadInGenerated')
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external int isThreadInGenerated();
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@FfiNative<IntPtr Function()>('IsThreadInGenerated', isLeaf: true)
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external int isThreadInGeneratedLeaf();
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// Error: FFI leaf call must not have Handle return type.
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@FfiNative<Handle Function()>("foo", isLeaf: true) //# 01: compile-time error
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external Object foo(); //# 01: compile-time error
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// Error: FFI leaf call must not have Handle argument types.
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@FfiNative<Void Function(Handle)>("bar", isLeaf: true) //# 02: compile-time error
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external void bar(Object); //# 02: compile-time error
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class Classy {
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@FfiNative<IntPtr Function(IntPtr)>('ReturnIntPtr')
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external static int returnIntPtrStatic(int x);
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// Error: FfiNative annotations can only be used on static functions.
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@FfiNative<IntPtr Function(IntPtr)>('ReturnIntPtr') //# 03: compile-time error
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external int returnIntPtrMethod(int x); //# 03: compile-time error
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}
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// Regression test: Ensure same-name FfiNative functions don't collide in the
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// top-level namespace, but instead live under their parent (Library, Class).
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class A {
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@FfiNative<Void Function()>('nop')
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external static void foo();
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}
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class B {
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@FfiNative<Void Function()>('nop')
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external static void foo();
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}
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void main() {
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// Register test resolver for top-level functions above.
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final root_lib_url = getRootLibraryUrl();
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setFfiNativeResolverForTest(root_lib_url);
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// Test we can call FfiNative functions.
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Expect.equals(123, returnIntPtr(123));
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Expect.equals(123, returnIntPtrLeaf(123));
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Expect.equals(123, Classy.returnIntPtrStatic(123));
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// Test FfiNative leaf calls remain in generated code.
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// Regular calls should transition generated -> native.
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Expect.equals(0, isThreadInGenerated());
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// Leaf calls should remain in generated state.
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Expect.equals(1, isThreadInGeneratedLeaf());
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}
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