Clement Skau
cd7c9922eb
[vm/ffi] Adds FFI transform for Handle -> Pointer.
This will automatically desugar FfiNative calls passing
NativeFieldWrapperClass1 handles to use Pointer when
the underlying native function expects a pointer.
E.g.:
```
class ClassWithNativeField extends NativeFieldWrapperClass1 {}
@FfiNative<IntPtr Function(Pointer<Void>)>('PassAsPointer')
external int passAsPointer(ClassWithNativeField obj);
passAsPointer(ClassWithNativeField());
// Becomes roughly:
// #t0 = PointerClassWithNativeField();
// passAsPointer(Pointer.fromAddress(getNativeField(#t0)));
// reachabilityFence(#t0);
```
TEST=Adds new tests in tests/ffi/ffi_native_test.dart.
Change-Id: I4460f9249803054f12be5d5ff34dbdf7c96567fd
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/213260
Commit-Queue: Clement Skau <cskau@google.com>
Reviewed-by: Daco Harkes <dacoharkes@google.com>
2021-09-15 12:47:35 +00:00
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