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#![allow(
clippy::boxed_local,
clippy::just_underscores_and_digits,
clippy::let_underscore_drop,
clippy::missing_safety_doc,
clippy::must_use_candidate,
clippy::needless_lifetimes,
clippy::needless_pass_by_value,
clippy::ptr_arg,
clippy::trivially_copy_pass_by_ref,
clippy::unnecessary_wraps,
clippy::unused_self
)]
pub mod cast;
pub mod module;
use cxx::{CxxString, CxxVector, SharedPtr, UniquePtr};
use std::fmt::{self, Display};
use std::mem::MaybeUninit;
use std::os::raw::c_char;
#[cxx::bridge(namespace = "tests")]
pub mod ffi {
#[derive(Clone, Debug, PartialEq, Eq, PartialOrd, Ord)]
struct Shared {
z: usize,
}
#[derive(PartialEq, PartialOrd)]
struct SharedString {
msg: String,
}
#[derive(Debug, Hash, PartialOrd, Ord)]
enum Enum {
AVal,
BVal = 2020,
#[cxx_name = "CVal"]
LastVal,
}
#[namespace = "A"]
#[derive(Copy, Clone, Default)]
struct AShared {
z: usize,
}
#[namespace = "A"]
enum AEnum {
AAVal,
ABVal = 2020,
ACVal,
}
#[namespace = "A::B"]
enum ABEnum {
ABAVal,
ABBVal = 2020,
ABCVal,
}
#[namespace = "A::B"]
#[derive(Clone)]
struct ABShared {
z: usize,
}
#[namespace = "first"]
struct First {
second: Box<Second>,
}
#[namespace = "second"]
#[derive(Hash)]
struct Second {
i: i32,
e: COwnedEnum,
}
pub struct Array {
a: [i32; 4],
}
#[derive(Copy, Clone, Debug, Default, Eq, Hash, Ord, PartialEq, PartialOrd)]
pub struct StructWithLifetime<'a> {
s: &'a str,
}
unsafe extern "C++" {
include!("tests/ffi/tests.h");
type C;
fn c_return_primitive() -> usize;
fn c_return_shared() -> Shared;
fn c_return_box() -> Box<R>;
fn c_return_unique_ptr() -> UniquePtr<C>;
fn c_return_shared_ptr() -> SharedPtr<C>;
fn c_return_ref(shared: &Shared) -> &usize;
fn c_return_mut(shared: &mut Shared) -> &mut usize;
fn c_return_str(shared: &Shared) -> &str;
fn c_return_slice_char(shared: &Shared) -> &[c_char];
fn c_return_mutsliceu8(slice: &mut [u8]) -> &mut [u8];
fn c_return_rust_string() -> String;
fn c_return_unique_ptr_string() -> UniquePtr<CxxString>;
fn c_return_unique_ptr_vector_u8() -> UniquePtr<CxxVector<u8>>;
fn c_return_unique_ptr_vector_f64() -> UniquePtr<CxxVector<f64>>;
fn c_return_unique_ptr_vector_string() -> UniquePtr<CxxVector<CxxString>>;
fn c_return_unique_ptr_vector_shared() -> UniquePtr<CxxVector<Shared>>;
fn c_return_unique_ptr_vector_opaque() -> UniquePtr<CxxVector<C>>;
fn c_return_ref_vector(c: &C) -> &CxxVector<u8>;
fn c_return_mut_vector(c: Pin<&mut C>) -> Pin<&mut CxxVector<u8>>;
fn c_return_rust_vec() -> Vec<u8>;
fn c_return_ref_rust_vec(c: &C) -> &Vec<u8>;
fn c_return_mut_rust_vec(c: Pin<&mut C>) -> &mut Vec<u8>;
fn c_return_rust_vec_string() -> Vec<String>;
fn c_return_identity(_: usize) -> usize;
fn c_return_sum(_: usize, _: usize) -> usize;
fn c_return_enum(n: u16) -> Enum;
fn c_return_ns_ref(shared: &AShared) -> &usize;
fn c_return_nested_ns_ref(shared: &ABShared) -> &usize;
fn c_return_ns_enum(n: u16) -> AEnum;
fn c_return_nested_ns_enum(n: u16) -> ABEnum;
fn c_return_const_ptr(n: usize) -> *const C;
fn c_return_mut_ptr(n: usize) -> *mut C;
fn c_take_primitive(n: usize);
fn c_take_shared(shared: Shared);
fn c_take_box(r: Box<R>);
fn c_take_ref_r(r: &R);
fn c_take_ref_c(c: &C);
fn c_take_str(s: &str);
fn c_take_slice_char(s: &[c_char]);
fn c_take_slice_shared(s: &[Shared]);
fn c_take_slice_shared_sort(s: &mut [Shared]);
fn c_take_slice_r(s: &[R]);
fn c_take_slice_r_sort(s: &mut [R]);
fn c_take_rust_string(s: String);
fn c_take_unique_ptr_string(s: UniquePtr<CxxString>);
fn c_take_unique_ptr_vector_u8(v: UniquePtr<CxxVector<u8>>);
fn c_take_unique_ptr_vector_f64(v: UniquePtr<CxxVector<f64>>);
fn c_take_unique_ptr_vector_string(v: UniquePtr<CxxVector<CxxString>>);
fn c_take_unique_ptr_vector_shared(v: UniquePtr<CxxVector<Shared>>);
fn c_take_ref_vector(v: &CxxVector<u8>);
fn c_take_rust_vec(v: Vec<u8>);
fn c_take_rust_vec_shared(v: Vec<Shared>);
fn c_take_rust_vec_string(v: Vec<String>);
fn c_take_rust_vec_index(v: Vec<u8>);
fn c_take_rust_vec_shared_index(v: Vec<Shared>);
fn c_take_rust_vec_shared_push(v: Vec<Shared>);
fn c_take_rust_vec_shared_forward_iterator(v: Vec<Shared>);
fn c_take_rust_vec_shared_sort(v: Vec<Shared>);
fn c_take_ref_rust_vec(v: &Vec<u8>);
fn c_take_ref_rust_vec_string(v: &Vec<String>);
fn c_take_ref_rust_vec_index(v: &Vec<u8>);
fn c_take_ref_rust_vec_copy(v: &Vec<u8>);
fn c_take_ref_shared_string(s: &SharedString) -> &SharedString;
fn c_take_callback(callback: fn(String) -> usize);
fn c_take_enum(e: Enum);
fn c_take_ns_enum(e: AEnum);
fn c_take_nested_ns_enum(e: ABEnum);
fn c_take_ns_shared(shared: AShared);
fn c_take_nested_ns_shared(shared: ABShared);
fn c_take_rust_vec_ns_shared(v: Vec<AShared>);
fn c_take_rust_vec_nested_ns_shared(v: Vec<ABShared>);
unsafe fn c_take_const_ptr(c: *const C) -> usize;
unsafe fn c_take_mut_ptr(c: *mut C) -> usize;
fn c_try_return_void() -> Result<()>;
fn c_try_return_primitive() -> Result<usize>;
fn c_fail_return_primitive() -> Result<usize>;
fn c_try_return_box() -> Result<Box<R>>;
fn c_try_return_ref(s: &String) -> Result<&String>;
fn c_try_return_str(s: &str) -> Result<&str>;
fn c_try_return_sliceu8(s: &[u8]) -> Result<&[u8]>;
fn c_try_return_mutsliceu8(s: &mut [u8]) -> Result<&mut [u8]>;
fn c_try_return_rust_string() -> Result<String>;
fn c_try_return_unique_ptr_string() -> Result<UniquePtr<CxxString>>;
fn c_try_return_rust_vec() -> Result<Vec<u8>>;
fn c_try_return_rust_vec_string() -> Result<Vec<String>>;
fn c_try_return_ref_rust_vec(c: &C) -> Result<&Vec<u8>>;
fn get(self: &C) -> usize;
fn set(self: Pin<&mut C>, n: usize) -> usize;
fn get2(&self) -> usize;
fn getRef(self: &C) -> &usize;
fn getMut(self: Pin<&mut C>) -> &mut usize;
fn set_succeed(self: Pin<&mut C>, n: usize) -> Result<usize>;
fn get_fail(self: Pin<&mut C>) -> Result<usize>;
fn c_method_on_shared(self: &Shared) -> usize;
fn c_method_ref_on_shared(self: &Shared) -> &usize;
fn c_method_mut_on_shared(self: &mut Shared) -> &mut usize;
fn c_set_array(self: &mut Array, value: i32);
fn c_get_use_count(weak: &WeakPtr<C>) -> usize;
#[rust_name = "i32_overloaded_method"]
fn cOverloadedMethod(&self, x: i32) -> String;
#[rust_name = "str_overloaded_method"]
fn cOverloadedMethod(&self, x: &str) -> String;
#[rust_name = "i32_overloaded_function"]
fn cOverloadedFunction(x: i32) -> String;
#[rust_name = "str_overloaded_function"]
fn cOverloadedFunction(x: &str) -> String;
#[namespace = "other"]
fn ns_c_take_ns_shared(shared: AShared);
}
extern "C++" {
include!("tests/ffi/module.rs.h");
type COwnedEnum;
type Job = crate::module::ffi::Job;
}
extern "Rust" {
#[derive(ExternType)]
type Reference<'a>;
}
unsafe extern "C++" {
type Borrow<'a>;
fn c_return_borrow<'a>(s: &'a CxxString) -> UniquePtr<Borrow<'a>>;
#[rust_name = "c_return_borrow_elided"]
fn c_return_borrow(s: &CxxString) -> UniquePtr<Borrow>;
fn const_member(self: &Borrow);
fn nonconst_member(self: Pin<&mut Borrow>);
}
#[repr(u32)]
#[derive(Hash)]
enum COwnedEnum {
#[cxx_name = "CVAL1"]
CVal1,
#[cxx_name = "CVAL2"]
CVal2,
}
extern "Rust" {
type R;
fn r_return_primitive() -> usize;
fn r_return_shared() -> Shared;
fn r_return_box() -> Box<R>;
fn r_return_unique_ptr() -> UniquePtr<C>;
fn r_return_shared_ptr() -> SharedPtr<C>;
fn r_return_ref(shared: &Shared) -> &usize;
fn r_return_mut(shared: &mut Shared) -> &mut usize;
fn r_return_str(shared: &Shared) -> &str;
fn r_return_sliceu8(shared: &Shared) -> &[u8];
fn r_return_mutsliceu8(slice: &mut [u8]) -> &mut [u8];
fn r_return_rust_string() -> String;
fn r_return_unique_ptr_string() -> UniquePtr<CxxString>;
fn r_return_rust_vec() -> Vec<u8>;
fn r_return_rust_vec_string() -> Vec<String>;
fn r_return_rust_vec_extern_struct() -> Vec<Job>;
fn r_return_ref_rust_vec(shared: &Shared) -> &Vec<u8>;
fn r_return_mut_rust_vec(shared: &mut Shared) -> &mut Vec<u8>;
fn r_return_identity(_: usize) -> usize;
fn r_return_sum(_: usize, _: usize) -> usize;
fn r_return_enum(n: u32) -> Enum;
fn r_take_primitive(n: usize);
fn r_take_shared(shared: Shared);
fn r_take_box(r: Box<R>);
fn r_take_unique_ptr(c: UniquePtr<C>);
fn r_take_shared_ptr(c: SharedPtr<C>);
fn r_take_ref_r(r: &R);
fn r_take_ref_c(c: &C);
fn r_take_str(s: &str);
fn r_take_slice_char(s: &[c_char]);
fn r_take_rust_string(s: String);
fn r_take_unique_ptr_string(s: UniquePtr<CxxString>);
fn r_take_ref_vector(v: &CxxVector<u8>);
fn r_take_ref_empty_vector(v: &CxxVector<u64>);
fn r_take_rust_vec(v: Vec<u8>);
fn r_take_rust_vec_string(v: Vec<String>);
fn r_take_ref_rust_vec(v: &Vec<u8>);
fn r_take_ref_rust_vec_string(v: &Vec<String>);
fn r_take_enum(e: Enum);
fn r_try_return_void() -> Result<()>;
fn r_try_return_primitive() -> Result<usize>;
fn r_try_return_box() -> Result<Box<R>>;
fn r_fail_return_primitive() -> Result<usize>;
fn r_try_return_sliceu8(s: &[u8]) -> Result<&[u8]>;
fn r_try_return_mutsliceu8(s: &mut [u8]) -> Result<&mut [u8]>;
fn get(self: &R) -> usize;
fn set(self: &mut R, n: usize) -> usize;
fn r_method_on_shared(self: &Shared) -> String;
fn r_get_array_sum(self: &Array) -> i32;
#[cxx_name = "rAliasedFunction"]
fn r_aliased_function(x: i32) -> String;
}
struct Dag0 {
i: i32,
}
struct Dag1 {
dag2: Dag2,
vec: Vec<Dag3>,
}
struct Dag2 {
dag4: Dag4,
}
struct Dag3 {
dag1: Dag1,
}
struct Dag4 {
dag0: Dag0,
}
impl Box<Shared> {}
}
mod other {
use cxx::kind::{Opaque, Trivial};
use cxx::{type_id, CxxString, ExternType};
#[repr(C)]
pub struct D {
pub d: u64,
}
#[repr(C)]
pub struct E {
e: u64,
e_str: CxxString,
}
pub mod f {
use cxx::kind::Opaque;
use cxx::{type_id, CxxString, ExternType};
#[repr(C)]
pub struct F {
e: u64,
e_str: CxxString,
}
unsafe impl ExternType for F {
type Id = type_id!("F::F");
type Kind = Opaque;
}
}
#[repr(C)]
pub struct G {
pub g: u64,
}
unsafe impl ExternType for G {
type Id = type_id!("G::G");
type Kind = Trivial;
}
unsafe impl ExternType for D {
type Id = type_id!("tests::D");
type Kind = Trivial;
}
unsafe impl ExternType for E {
type Id = type_id!("tests::E");
type Kind = Opaque;
}
}
#[derive(PartialEq, Debug)]
pub struct R(pub usize);
impl R {
fn get(&self) -> usize {
self.0
}
fn set(&mut self, n: usize) -> usize {
self.0 = n;
n
}
}
pub struct Reference<'a>(&'a String);
impl ffi::Shared {
fn r_method_on_shared(&self) -> String {
"2020".to_owned()
}
}
impl ffi::Array {
pub fn r_get_array_sum(&self) -> i32 {
self.a.iter().sum()
}
}
#[derive(Debug)]
struct Error;
impl std::error::Error for Error {}
impl Display for Error {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
f.write_str("rust error")
}
}
fn r_return_primitive() -> usize {
2020
}
fn r_return_shared() -> ffi::Shared {
ffi::Shared { z: 2020 }
}
fn r_return_box() -> Box<R> {
Box::new(R(2020))
}
fn r_return_unique_ptr() -> UniquePtr<ffi::C> {
extern "C" {
fn cxx_test_suite_get_unique_ptr() -> *mut ffi::C;
}
unsafe { UniquePtr::from_raw(cxx_test_suite_get_unique_ptr()) }
}
fn r_return_shared_ptr() -> SharedPtr<ffi::C> {
extern "C" {
fn cxx_test_suite_get_shared_ptr(repr: *mut SharedPtr<ffi::C>);
}
let mut shared_ptr = MaybeUninit::<SharedPtr<ffi::C>>::uninit();
let repr = shared_ptr.as_mut_ptr();
unsafe {
cxx_test_suite_get_shared_ptr(repr);
shared_ptr.assume_init()
}
}
fn r_return_ref(shared: &ffi::Shared) -> &usize {
&shared.z
}
fn r_return_mut(shared: &mut ffi::Shared) -> &mut usize {
&mut shared.z
}
fn r_return_str(shared: &ffi::Shared) -> &str {
let _ = shared;
"2020"
}
fn r_return_sliceu8(shared: &ffi::Shared) -> &[u8] {
let _ = shared;
b"2020"
}
fn r_return_mutsliceu8(slice: &mut [u8]) -> &mut [u8] {
slice
}
fn r_return_rust_string() -> String {
"2020".to_owned()
}
fn r_return_unique_ptr_string() -> UniquePtr<CxxString> {
extern "C" {
fn cxx_test_suite_get_unique_ptr_string() -> *mut CxxString;
}
unsafe { UniquePtr::from_raw(cxx_test_suite_get_unique_ptr_string()) }
}
fn r_return_rust_vec() -> Vec<u8> {
Vec::new()
}
fn r_return_rust_vec_string() -> Vec<String> {
Vec::new()
}
fn r_return_rust_vec_extern_struct() -> Vec<ffi::Job> {
Vec::new()
}
fn r_return_ref_rust_vec(shared: &ffi::Shared) -> &Vec<u8> {
let _ = shared;
unimplemented!()
}
fn r_return_mut_rust_vec(shared: &mut ffi::Shared) -> &mut Vec<u8> {
let _ = shared;
unimplemented!()
}
fn r_return_identity(n: usize) -> usize {
n
}
fn r_return_sum(n1: usize, n2: usize) -> usize {
n1 + n2
}
fn r_return_enum(n: u32) -> ffi::Enum {
if n == 0 {
ffi::Enum::AVal
} else if n <= 2020 {
ffi::Enum::BVal
} else {
ffi::Enum::LastVal
}
}
fn r_take_primitive(n: usize) {
assert_eq!(n, 2020);
}
fn r_take_shared(shared: ffi::Shared) {
assert_eq!(shared.z, 2020);
}
fn r_take_box(r: Box<R>) {
let _ = r;
}
fn r_take_unique_ptr(c: UniquePtr<ffi::C>) {
let _ = c;
}
fn r_take_shared_ptr(c: SharedPtr<ffi::C>) {
let _ = c;
}
fn r_take_ref_r(r: &R) {
let _ = r;
}
fn r_take_ref_c(c: &ffi::C) {
let _ = c;
}
fn r_take_str(s: &str) {
assert_eq!(s, "2020");
}
fn r_take_rust_string(s: String) {
assert_eq!(s, "2020");
}
fn r_take_slice_char(s: &[c_char]) {
assert_eq!(s.len(), 5);
let s = cast::c_char_to_unsigned(s);
assert_eq!(std::str::from_utf8(s).unwrap(), "2020\0");
}
fn r_take_unique_ptr_string(s: UniquePtr<CxxString>) {
assert_eq!(s.as_ref().unwrap().to_str().unwrap(), "2020");
}
fn r_take_ref_vector(v: &CxxVector<u8>) {
let slice = v.as_slice();
assert_eq!(slice, [20, 2, 0]);
}
fn r_take_ref_empty_vector(v: &CxxVector<u64>) {
assert!(v.as_slice().is_empty());
assert!(v.is_empty());
}
fn r_take_rust_vec(v: Vec<u8>) {
let _ = v;
}
fn r_take_rust_vec_string(v: Vec<String>) {
let _ = v;
}
fn r_take_ref_rust_vec(v: &Vec<u8>) {
let _ = v;
}
fn r_take_ref_rust_vec_string(v: &Vec<String>) {
let _ = v;
}
fn r_take_enum(e: ffi::Enum) {
let _ = e;
}
fn r_try_return_void() -> Result<(), Error> {
Ok(())
}
fn r_try_return_primitive() -> Result<usize, Error> {
Ok(2020)
}
fn r_try_return_box() -> Result<Box<R>, Error> {
Ok(Box::new(R(2020)))
}
fn r_fail_return_primitive() -> Result<usize, Error> {
Err(Error)
}
fn r_try_return_sliceu8(slice: &[u8]) -> Result<&[u8], Error> {
Ok(slice)
}
fn r_try_return_mutsliceu8(slice: &mut [u8]) -> Result<&mut [u8], Error> {
Ok(slice)
}
fn r_aliased_function(x: i32) -> String {
x.to_string()
}