tests/rust/test_service.rs - platform/system/tools/aidl - Git at Google

 /*
  * Copyright (C) 2020, The Android Open Source Project
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
  *
  *     http://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */

 //! Test Rust service for the AIDL compiler.

 use aidl_test_interface::aidl::android::aidl::tests::ITestService::{
     self, BnTestService, BpTestService,
 };
 use aidl_test_interface::aidl::android::aidl::tests::{
     BackendType::BackendType, ByteEnum::ByteEnum, ConstantExpressionEnum::ConstantExpressionEnum,
     INamedCallback, INewName, IOldName, IntEnum::IntEnum, LongEnum::LongEnum, StructuredParcelable,
     Union,
 };
 use aidl_test_interface::binder::{
     self, BinderFeatures, Interface, ParcelFileDescriptor, SpIBinder,
 };
 use aidl_test_versioned_interface::aidl::android::aidl::versioned::tests::{
     BazUnion::BazUnion, Foo::Foo, IFooInterface, IFooInterface::BnFooInterface,
     IFooInterface::BpFooInterface,
 };
 use std::collections::HashMap;
 use std::sync::Mutex;

 fn dup_fd(fd: &ParcelFileDescriptor) -> ParcelFileDescriptor {
     ParcelFileDescriptor::new(fd.as_ref().try_clone().unwrap())
 }

 struct NamedCallback(String);

 impl Interface for NamedCallback {}

 impl INamedCallback::INamedCallback for NamedCallback {
     fn GetName(&self) -> binder::Result<String> {
         Ok(self.0.clone())
     }
 }

 struct OldName;

 impl Interface for OldName {}

 impl IOldName::IOldName for OldName {
     fn RealName(&self) -> binder::Result<String> {
         Ok("OldName".into())
     }
 }

 #[derive(Debug, Default)]
 struct NewName;

 impl Interface for NewName {}

 impl INewName::INewName for NewName {
     fn RealName(&self) -> binder::Result<String> {
         Ok("NewName".into())
     }
 }

 #[derive(Default)]
 struct TestService {
     service_map: Mutex<HashMap<String, binder::Strong<dyn INamedCallback::INamedCallback>>>,
 }

 impl Interface for TestService {}

 macro_rules! impl_repeat {
     ($repeat_name:ident, $type:ty) => {
         fn $repeat_name(&self, token: $type) -> binder::Result<$type> {
             Ok(token)
         }
     };
 }

 macro_rules! impl_reverse {
     ($reverse_name:ident, $type:ty) => {
         fn $reverse_name(
             &self,
             input: &[$type],
             repeated: &mut Vec<$type>,
         ) -> binder::Result<Vec<$type>> {
             repeated.clear();
             repeated.extend_from_slice(input);
             Ok(input.iter().rev().cloned().collect())
         }
     };
 }

 macro_rules! impl_repeat_reverse {
     ($repeat_name:ident, $reverse_name:ident, $type:ty) => {
         impl_repeat! {$repeat_name, $type}
         impl_reverse! {$reverse_name, $type}
     };
 }

 macro_rules! impl_repeat_nullable {
     ($repeat_nullable_name:ident, $type:ty) => {
         fn $repeat_nullable_name(
             &self,
             input: Option<&[$type]>,
         ) -> binder::Result<Option<Vec<$type>>> {
             Ok(input.map(<[$type]>::to_vec))
         }
     };
 }

 impl ITestService::ITestService for TestService {
     impl_repeat! {RepeatByte, i8}
     impl_reverse! {ReverseByte, u8}

     fn UnimplementedMethod(&self, _: i32) -> binder::Result<i32> {
         // Pretend this method hasn't been implemented
         Err(binder::StatusCode::UNKNOWN_TRANSACTION.into())
     }

     fn TestOneway(&self) -> binder::Result<()> {
         Err(binder::StatusCode::UNKNOWN_ERROR.into())
     }

     fn Deprecated(&self) -> binder::Result<()> {
         Ok(())
     }

     impl_repeat_reverse! {RepeatBoolean, ReverseBoolean, bool}
     impl_repeat_reverse! {RepeatChar, ReverseChar, u16}
     impl_repeat_reverse! {RepeatInt, ReverseInt, i32}
     impl_repeat_reverse! {RepeatLong, ReverseLong, i64}
     impl_repeat_reverse! {RepeatFloat, ReverseFloat, f32}
     impl_repeat_reverse! {RepeatDouble, ReverseDouble, f64}
     impl_repeat_reverse! {RepeatByteEnum, ReverseByteEnum, ByteEnum}
     impl_repeat_reverse! {RepeatIntEnum, ReverseIntEnum, IntEnum}
     impl_repeat_reverse! {RepeatLongEnum, ReverseLongEnum, LongEnum}
     impl_reverse! {ReverseString, String}
     impl_reverse! {ReverseStringList, String}
     impl_reverse! {ReverseUtf8CppString, String}

     fn RepeatString(&self, input: &str) -> binder::Result<String> {
         Ok(input.into())
     }

     fn RepeatUtf8CppString(&self, input: &str) -> binder::Result<String> {
         Ok(input.into())
     }

     fn GetOtherTestService(
         &self,
         name: &str,
     ) -> binder::Result<binder::Strong<dyn INamedCallback::INamedCallback>> {
         let mut service_map = self.service_map.lock().unwrap();
         let other_service = service_map.entry(name.into()).or_insert_with(|| {
             let named_callback = NamedCallback(name.into());
             INamedCallback::BnNamedCallback::new_binder(named_callback, BinderFeatures::default())
         });
         Ok(other_service.to_owned())
     }

     fn VerifyName(
         &self,
         service: &binder::Strong<dyn INamedCallback::INamedCallback>,
         name: &str,
     ) -> binder::Result<bool> {
         service.GetName().map(|found_name| found_name == name)
     }

     fn RepeatParcelFileDescriptor(
         &self,
         read: &ParcelFileDescriptor,
     ) -> binder::Result<ParcelFileDescriptor> {
         Ok(dup_fd(read))
     }

     fn ReverseParcelFileDescriptorArray(
         &self,
         input: &[ParcelFileDescriptor],
         repeated: &mut Vec<Option<ParcelFileDescriptor>>,
     ) -> binder::Result<Vec<ParcelFileDescriptor>> {
         repeated.clear();
         repeated.extend(input.iter().map(dup_fd).map(Some));
         Ok(input.iter().rev().map(dup_fd).collect())
     }

     fn ThrowServiceException(&self, code: i32) -> binder::Result<()> {
         Err(binder::Status::new_service_specific_error(code, None))
     }

     impl_repeat_nullable! {RepeatNullableIntArray, i32}
     impl_repeat_nullable! {RepeatNullableByteEnumArray, ByteEnum}
     impl_repeat_nullable! {RepeatNullableIntEnumArray, IntEnum}
     impl_repeat_nullable! {RepeatNullableLongEnumArray, LongEnum}
     impl_repeat_nullable! {RepeatNullableStringList, Option<String>}

     fn RepeatNullableString(&self, input: Option<&str>) -> binder::Result<Option<String>> {
         Ok(input.map(String::from))
     }

     fn RepeatNullableUtf8CppString(&self, input: Option<&str>) -> binder::Result<Option<String>> {
         Ok(input.map(String::from))
     }

     fn RepeatNullableParcelable(
         &self,
         input: Option<&StructuredParcelable::StructuredParcelable>,
     ) -> binder::Result<Option<StructuredParcelable::StructuredParcelable>> {
         Ok(input.cloned())
     }

     fn TakesAnIBinder(&self, _: &SpIBinder) -> binder::Result<()> {
         Ok(())
     }

     fn TakesANullableIBinder(&self, _: Option<&SpIBinder>) -> binder::Result<()> {
         Ok(())
     }

     fn ReverseNullableUtf8CppString(
         &self,
         input: Option<&[Option<String>]>,
         repeated: &mut Option<Vec<Option<String>>>,
     ) -> binder::Result<Option<Vec<Option<String>>>> {
         if let Some(input) = input {
             *repeated = Some(input.to_vec());
             Ok(Some(input.iter().rev().cloned().collect()))
         } else {
             // We don't touch `repeated` here, since
             // the C++ test service doesn't either
             Ok(None)
         }
     }

     fn ReverseUtf8CppStringList(
         &self,
         input: Option<&[Option<String>]>,
         repeated: &mut Option<Vec<Option<String>>>,
     ) -> binder::Result<Option<Vec<Option<String>>>> {
         self.ReverseNullableUtf8CppString(input, repeated)
     }

     fn GetCallback(
         &self,
         return_null: bool,
     ) -> binder::Result<Option<binder::Strong<dyn INamedCallback::INamedCallback>>> {
         if return_null {
             Ok(None)
         } else {
             self.GetOtherTestService("ABT: always be testing").map(Some)
         }
     }

     fn FillOutStructuredParcelable(
         &self,
         parcelable: &mut StructuredParcelable::StructuredParcelable,
     ) -> binder::Result<()> {
         parcelable.shouldBeJerry = "Jerry".into();
         parcelable.shouldContainThreeFs = vec![parcelable.f, parcelable.f, parcelable.f];
         parcelable.shouldBeByteBar = ByteEnum::BAR;
         parcelable.shouldBeIntBar = IntEnum::BAR;
         parcelable.shouldBeLongBar = LongEnum::BAR;
         parcelable.shouldContainTwoByteFoos = vec![ByteEnum::FOO, ByteEnum::FOO];
         parcelable.shouldContainTwoIntFoos = vec![IntEnum::FOO, IntEnum::FOO];
         parcelable.shouldContainTwoLongFoos = vec![LongEnum::FOO, LongEnum::FOO];

         parcelable.const_exprs_1 = ConstantExpressionEnum::decInt32_1;
         parcelable.const_exprs_2 = ConstantExpressionEnum::decInt32_2;
         parcelable.const_exprs_3 = ConstantExpressionEnum::decInt64_1;
         parcelable.const_exprs_4 = ConstantExpressionEnum::decInt64_2;
         parcelable.const_exprs_5 = ConstantExpressionEnum::decInt64_3;
         parcelable.const_exprs_6 = ConstantExpressionEnum::decInt64_4;
         parcelable.const_exprs_7 = ConstantExpressionEnum::hexInt32_1;
         parcelable.const_exprs_8 = ConstantExpressionEnum::hexInt32_2;
         parcelable.const_exprs_9 = ConstantExpressionEnum::hexInt32_3;
         parcelable.const_exprs_10 = ConstantExpressionEnum::hexInt64_1;

         parcelable.shouldSetBit0AndBit2 = StructuredParcelable::BIT0 | StructuredParcelable::BIT2;

         parcelable.u = Some(Union::Union::Ns(vec![1, 2, 3]));
         parcelable.shouldBeConstS1 = Some(Union::Union::S(Union::S1.to_string()));
         Ok(())
     }

     fn GetOldNameInterface(&self) -> binder::Result<binder::Strong<dyn IOldName::IOldName>> {
         Ok(IOldName::BnOldName::new_binder(
             OldName,
             BinderFeatures::default(),
         ))
     }

     fn GetNewNameInterface(&self) -> binder::Result<binder::Strong<dyn INewName::INewName>> {
         Ok(INewName::BnNewName::new_binder(
             NewName,
             BinderFeatures::default(),
         ))
     }

     fn GetCppJavaTests(&self) -> binder::Result<Option<SpIBinder>> {
         Ok(None)
     }

     fn getBackendType(&self) -> binder::Result<BackendType> {
         Ok(BackendType::RUST)
     }
 }

 struct FooInterface;

 impl Interface for FooInterface {}

 impl IFooInterface::IFooInterface for FooInterface {
     fn originalApi(&self) -> binder::Result<()> {
         Ok(())
     }
     fn acceptUnionAndReturnString(&self, u: &BazUnion) -> binder::Result<String> {
         match u {
             BazUnion::IntNum(n) => Ok(n.to_string()),
         }
     }
     fn returnsLengthOfFooArray(&self, foos: &[Foo]) -> binder::Result<i32> {
         Ok(foos.len() as i32)
     }
     fn ignoreParcelablesAndRepeatInt(&self, _in_foo: &Foo, _inout_foo: &mut Foo, _out_foo: &mut Foo, value: i32) -> binder::Result<i32> {
         Ok(value)
     }
 }

 fn main() {
     binder::ProcessState::set_thread_pool_max_thread_count(0);
     binder::ProcessState::start_thread_pool();

     let service_name = <BpTestService as ITestService::ITestService>::get_descriptor();
     let service = BnTestService::new_binder(TestService::default(), BinderFeatures::default());
     binder::add_service(service_name, service.as_binder()).expect("Could not register service");

     let versioned_service_name = <BpFooInterface as IFooInterface::IFooInterface>::get_descriptor();
     let versioned_service = BnFooInterface::new_binder(FooInterface, BinderFeatures::default());
     binder::add_service(versioned_service_name, versioned_service.as_binder())
         .expect("Could not register service");

     binder::ProcessState::join_thread_pool();
 }
	/*
	* Copyright (C) 2020, The Android Open Source Project
	*
	* Licensed under the Apache License, Version 2.0 (the "License");
	* you may not use this file except in compliance with the License.
	* You may obtain a copy of the License at
	*
	* http://www.apache.org/licenses/LICENSE-2.0
	*
	* Unless required by applicable law or agreed to in writing, software
	* distributed under the License is distributed on an "AS IS" BASIS,
	* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
	* See the License for the specific language governing permissions and
	* limitations under the License.
	*/

	//! Test Rust service for the AIDL compiler.

	use aidl_test_interface::aidl::android::aidl::tests::ITestService::{
	self, BnTestService, BpTestService,
	};
	use aidl_test_interface::aidl::android::aidl::tests::{
	BackendType::BackendType, ByteEnum::ByteEnum, ConstantExpressionEnum::ConstantExpressionEnum,
	INamedCallback, INewName, IOldName, IntEnum::IntEnum, LongEnum::LongEnum, StructuredParcelable,
	Union,
	};
	use aidl_test_interface::binder::{
	self, BinderFeatures, Interface, ParcelFileDescriptor, SpIBinder,
	};
	use aidl_test_versioned_interface::aidl::android::aidl::versioned::tests::{
	BazUnion::BazUnion, Foo::Foo, IFooInterface, IFooInterface::BnFooInterface,
	IFooInterface::BpFooInterface,
	};
	use std::collections::HashMap;
	use std::sync::Mutex;

	fn dup_fd(fd: &ParcelFileDescriptor) -> ParcelFileDescriptor {
	ParcelFileDescriptor::new(fd.as_ref().try_clone().unwrap())
	}

	struct NamedCallback(String);

	impl Interface for NamedCallback {}

	impl INamedCallback::INamedCallback for NamedCallback {
	fn GetName(&self) -> binder::Result<String> {
	Ok(self.0.clone())
	}
	}

	struct OldName;

	impl Interface for OldName {}

	impl IOldName::IOldName for OldName {
	fn RealName(&self) -> binder::Result<String> {
	Ok("OldName".into())
	}
	}

	#[derive(Debug, Default)]
	struct NewName;

	impl Interface for NewName {}

	impl INewName::INewName for NewName {
	fn RealName(&self) -> binder::Result<String> {
	Ok("NewName".into())
	}
	}

	#[derive(Default)]
	struct TestService {
	service_map: Mutex<HashMap<String, binder::Strong<dyn INamedCallback::INamedCallback>>>,
	}

	impl Interface for TestService {}

	macro_rules! impl_repeat {
	($repeat_name:ident, $type:ty) => {
	fn $repeat_name(&self, token: $type) -> binder::Result<$type> {
	Ok(token)
	}
	};
	}

	macro_rules! impl_reverse {
	($reverse_name:ident, $type:ty) => {
	fn $reverse_name(
	&self,
	input: &[$type],
	repeated: &mut Vec<$type>,
	) -> binder::Result<Vec<$type>> {
	repeated.clear();
	repeated.extend_from_slice(input);
	Ok(input.iter().rev().cloned().collect())
	}
	};
	}

	macro_rules! impl_repeat_reverse {
	($repeat_name:ident, $reverse_name:ident, $type:ty) => {
	impl_repeat! {$repeat_name, $type}
	impl_reverse! {$reverse_name, $type}
	};
	}

	macro_rules! impl_repeat_nullable {
	($repeat_nullable_name:ident, $type:ty) => {
	fn $repeat_nullable_name(
	&self,
	input: Option<&[$type]>,
	) -> binder::Result<Option<Vec<$type>>> {
	Ok(input.map(<[$type]>::to_vec))
	}
	};
	}

	impl ITestService::ITestService for TestService {
	impl_repeat! {RepeatByte, i8}
	impl_reverse! {ReverseByte, u8}

	fn UnimplementedMethod(&self, _: i32) -> binder::Result<i32> {
	// Pretend this method hasn't been implemented
	Err(binder::StatusCode::UNKNOWN_TRANSACTION.into())
	}

	fn TestOneway(&self) -> binder::Result<()> {
	Err(binder::StatusCode::UNKNOWN_ERROR.into())
	}

	fn Deprecated(&self) -> binder::Result<()> {
	Ok(())
	}

	impl_repeat_reverse! {RepeatBoolean, ReverseBoolean, bool}
	impl_repeat_reverse! {RepeatChar, ReverseChar, u16}
	impl_repeat_reverse! {RepeatInt, ReverseInt, i32}
	impl_repeat_reverse! {RepeatLong, ReverseLong, i64}
	impl_repeat_reverse! {RepeatFloat, ReverseFloat, f32}
	impl_repeat_reverse! {RepeatDouble, ReverseDouble, f64}
	impl_repeat_reverse! {RepeatByteEnum, ReverseByteEnum, ByteEnum}
	impl_repeat_reverse! {RepeatIntEnum, ReverseIntEnum, IntEnum}
	impl_repeat_reverse! {RepeatLongEnum, ReverseLongEnum, LongEnum}
	impl_reverse! {ReverseString, String}
	impl_reverse! {ReverseStringList, String}
	impl_reverse! {ReverseUtf8CppString, String}

	fn RepeatString(&self, input: &str) -> binder::Result<String> {
	Ok(input.into())
	}

	fn RepeatUtf8CppString(&self, input: &str) -> binder::Result<String> {
	Ok(input.into())
	}

	fn GetOtherTestService(
	&self,
	name: &str,
	) -> binder::Result<binder::Strong<dyn INamedCallback::INamedCallback>> {
	let mut service_map = self.service_map.lock().unwrap();
	let other_service = service_map.entry(name.into()).or_insert_with(\|\| {
	let named_callback = NamedCallback(name.into());
	INamedCallback::BnNamedCallback::new_binder(named_callback, BinderFeatures::default())
	});
	Ok(other_service.to_owned())
	}

	fn VerifyName(
	&self,
	service: &binder::Strong<dyn INamedCallback::INamedCallback>,
	name: &str,
	) -> binder::Result<bool> {
	service.GetName().map(\|found_name\| found_name == name)
	}

	fn RepeatParcelFileDescriptor(
	&self,
	read: &ParcelFileDescriptor,
	) -> binder::Result<ParcelFileDescriptor> {
	Ok(dup_fd(read))
	}

	fn ReverseParcelFileDescriptorArray(
	&self,
	input: &[ParcelFileDescriptor],
	repeated: &mut Vec<Option<ParcelFileDescriptor>>,
	) -> binder::Result<Vec<ParcelFileDescriptor>> {
	repeated.clear();
	repeated.extend(input.iter().map(dup_fd).map(Some));
	Ok(input.iter().rev().map(dup_fd).collect())
	}

	fn ThrowServiceException(&self, code: i32) -> binder::Result<()> {
	Err(binder::Status::new_service_specific_error(code, None))
	}

	impl_repeat_nullable! {RepeatNullableIntArray, i32}
	impl_repeat_nullable! {RepeatNullableByteEnumArray, ByteEnum}
	impl_repeat_nullable! {RepeatNullableIntEnumArray, IntEnum}
	impl_repeat_nullable! {RepeatNullableLongEnumArray, LongEnum}
	impl_repeat_nullable! {RepeatNullableStringList, Option<String>}

	fn RepeatNullableString(&self, input: Option<&str>) -> binder::Result<Option<String>> {
	Ok(input.map(String::from))
	}

	fn RepeatNullableUtf8CppString(&self, input: Option<&str>) -> binder::Result<Option<String>> {
	Ok(input.map(String::from))
	}

	fn RepeatNullableParcelable(
	&self,
	input: Option<&StructuredParcelable::StructuredParcelable>,
	) -> binder::Result<Option<StructuredParcelable::StructuredParcelable>> {
	Ok(input.cloned())
	}

	fn TakesAnIBinder(&self, _: &SpIBinder) -> binder::Result<()> {
	Ok(())
	}

	fn TakesANullableIBinder(&self, _: Option<&SpIBinder>) -> binder::Result<()> {
	Ok(())
	}

	fn ReverseNullableUtf8CppString(
	&self,
	input: Option<&[Option<String>]>,
	repeated: &mut Option<Vec<Option<String>>>,
	) -> binder::Result<Option<Vec<Option<String>>>> {
	if let Some(input) = input {
	*repeated = Some(input.to_vec());
	Ok(Some(input.iter().rev().cloned().collect()))
	} else {
	// We don't touch `repeated` here, since
	// the C++ test service doesn't either
	Ok(None)
	}
	}

	fn ReverseUtf8CppStringList(
	&self,
	input: Option<&[Option<String>]>,
	repeated: &mut Option<Vec<Option<String>>>,
	) -> binder::Result<Option<Vec<Option<String>>>> {
	self.ReverseNullableUtf8CppString(input, repeated)
	}

	fn GetCallback(
	&self,
	return_null: bool,
	) -> binder::Result<Option<binder::Strong<dyn INamedCallback::INamedCallback>>> {
	if return_null {
	Ok(None)
	} else {
	self.GetOtherTestService("ABT: always be testing").map(Some)
	}
	}

	fn FillOutStructuredParcelable(
	&self,
	parcelable: &mut StructuredParcelable::StructuredParcelable,
	) -> binder::Result<()> {
	parcelable.shouldBeJerry = "Jerry".into();
	parcelable.shouldContainThreeFs = vec![parcelable.f, parcelable.f, parcelable.f];
	parcelable.shouldBeByteBar = ByteEnum::BAR;
	parcelable.shouldBeIntBar = IntEnum::BAR;
	parcelable.shouldBeLongBar = LongEnum::BAR;
	parcelable.shouldContainTwoByteFoos = vec![ByteEnum::FOO, ByteEnum::FOO];
	parcelable.shouldContainTwoIntFoos = vec![IntEnum::FOO, IntEnum::FOO];
	parcelable.shouldContainTwoLongFoos = vec![LongEnum::FOO, LongEnum::FOO];

	parcelable.const_exprs_1 = ConstantExpressionEnum::decInt32_1;
	parcelable.const_exprs_2 = ConstantExpressionEnum::decInt32_2;
	parcelable.const_exprs_3 = ConstantExpressionEnum::decInt64_1;
	parcelable.const_exprs_4 = ConstantExpressionEnum::decInt64_2;
	parcelable.const_exprs_5 = ConstantExpressionEnum::decInt64_3;
	parcelable.const_exprs_6 = ConstantExpressionEnum::decInt64_4;
	parcelable.const_exprs_7 = ConstantExpressionEnum::hexInt32_1;
	parcelable.const_exprs_8 = ConstantExpressionEnum::hexInt32_2;
	parcelable.const_exprs_9 = ConstantExpressionEnum::hexInt32_3;
	parcelable.const_exprs_10 = ConstantExpressionEnum::hexInt64_1;

	parcelable.shouldSetBit0AndBit2 = StructuredParcelable::BIT0 \| StructuredParcelable::BIT2;

	parcelable.u = Some(Union::Union::Ns(vec![1, 2, 3]));
	parcelable.shouldBeConstS1 = Some(Union::Union::S(Union::S1.to_string()));
	Ok(())
	}

	fn GetOldNameInterface(&self) -> binder::Result<binder::Strong<dyn IOldName::IOldName>> {
	Ok(IOldName::BnOldName::new_binder(
	OldName,
	BinderFeatures::default(),
	))
	}

	fn GetNewNameInterface(&self) -> binder::Result<binder::Strong<dyn INewName::INewName>> {
	Ok(INewName::BnNewName::new_binder(
	NewName,
	BinderFeatures::default(),
	))
	}

	fn GetCppJavaTests(&self) -> binder::Result<Option<SpIBinder>> {
	Ok(None)
	}

	fn getBackendType(&self) -> binder::Result<BackendType> {
	Ok(BackendType::RUST)
	}
	}

	struct FooInterface;

	impl Interface for FooInterface {}

	impl IFooInterface::IFooInterface for FooInterface {
	fn originalApi(&self) -> binder::Result<()> {
	Ok(())
	}
	fn acceptUnionAndReturnString(&self, u: &BazUnion) -> binder::Result<String> {
	match u {
	BazUnion::IntNum(n) => Ok(n.to_string()),
	}
	}
	fn returnsLengthOfFooArray(&self, foos: &[Foo]) -> binder::Result<i32> {
	Ok(foos.len() as i32)
	}
	fn ignoreParcelablesAndRepeatInt(&self, _in_foo: &Foo, _inout_foo: &mut Foo, _out_foo: &mut Foo, value: i32) -> binder::Result<i32> {
	Ok(value)
	}
	}

	fn main() {
	binder::ProcessState::set_thread_pool_max_thread_count(0);
	binder::ProcessState::start_thread_pool();

	let service_name = <BpTestService as ITestService::ITestService>::get_descriptor();
	let service = BnTestService::new_binder(TestService::default(), BinderFeatures::default());
	binder::add_service(service_name, service.as_binder()).expect("Could not register service");

	let versioned_service_name = <BpFooInterface as IFooInterface::IFooInterface>::get_descriptor();
	let versioned_service = BnFooInterface::new_binder(FooInterface, BinderFeatures::default());
	binder::add_service(versioned_service_name, versioned_service.as_binder())
	.expect("Could not register service");

	binder::ProcessState::join_thread_pool();
	}