mirror of https://github.com/rust-lang/rust
118 lines
4.2 KiB
Rust
118 lines
4.2 KiB
Rust
#![feature(rustc_private)]
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#![allow(private_interfaces)]
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#![deny(improper_ctypes)]
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use std::cell::UnsafeCell;
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use std::marker::PhantomData;
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use std::ffi::{c_int, c_uint};
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trait Bar { }
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trait Mirror { type It: ?Sized; }
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impl<T: ?Sized> Mirror for T { type It = Self; }
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#[repr(C)]
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pub struct StructWithProjection(*mut <StructWithProjection as Mirror>::It);
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#[repr(C)]
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pub struct StructWithProjectionAndLifetime<'a>(
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&'a mut <StructWithProjectionAndLifetime<'a> as Mirror>::It
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);
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pub type I32Pair = (i32, i32);
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#[repr(C)]
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pub struct ZeroSize;
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pub type RustFn = fn();
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pub type RustBadRet = extern "C" fn() -> Box<u32>;
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pub type CVoidRet = ();
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pub struct Foo;
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#[repr(transparent)]
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pub struct TransparentI128(i128);
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#[repr(transparent)]
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pub struct TransparentStr(&'static str);
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#[repr(transparent)]
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pub struct TransparentBadFn(RustBadRet);
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#[repr(transparent)]
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pub struct TransparentInt(u32);
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#[repr(transparent)]
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pub struct TransparentRef<'a>(&'a TransparentInt);
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#[repr(transparent)]
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pub struct TransparentLifetime<'a>(*const u8, PhantomData<&'a ()>);
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#[repr(transparent)]
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pub struct TransparentUnit<U>(f32, PhantomData<U>);
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#[repr(transparent)]
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pub struct TransparentCustomZst(i32, ZeroSize);
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#[repr(C)]
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pub struct ZeroSizeWithPhantomData(::std::marker::PhantomData<i32>);
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extern "C" {
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pub fn ptr_type1(size: *const Foo); //~ ERROR: uses type `Foo`
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pub fn ptr_type2(size: *const Foo); //~ ERROR: uses type `Foo`
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pub fn ptr_unit(p: *const ());
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pub fn ptr_tuple(p: *const ((),)); //~ ERROR: uses type `((),)`
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pub fn slice_type(p: &[u32]); //~ ERROR: uses type `[u32]`
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pub fn str_type(p: &str); //~ ERROR: uses type `str`
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pub fn box_type(p: Box<u32>); //~ ERROR uses type `Box<u32>`
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pub fn opt_box_type(p: Option<Box<u32>>);
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//~^ ERROR uses type `Option<Box<u32>>`
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pub fn char_type(p: char); //~ ERROR uses type `char`
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pub fn i128_type(p: i128); //~ ERROR uses type `i128`
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pub fn u128_type(p: u128); //~ ERROR uses type `u128`
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pub fn trait_type(p: &dyn Bar); //~ ERROR uses type `dyn Bar`
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pub fn tuple_type(p: (i32, i32)); //~ ERROR uses type `(i32, i32)`
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pub fn tuple_type2(p: I32Pair); //~ ERROR uses type `(i32, i32)`
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pub fn zero_size(p: ZeroSize); //~ ERROR uses type `ZeroSize`
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pub fn zero_size_phantom(p: ZeroSizeWithPhantomData);
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//~^ ERROR uses type `ZeroSizeWithPhantomData`
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pub fn zero_size_phantom_toplevel()
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-> ::std::marker::PhantomData<bool>; //~ ERROR uses type `PhantomData<bool>`
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pub fn fn_type(p: RustFn); //~ ERROR uses type `fn()`
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pub fn fn_type2(p: fn()); //~ ERROR uses type `fn()`
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pub fn fn_contained(p: RustBadRet); //~ ERROR: uses type `Box<u32>`
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pub fn transparent_i128(p: TransparentI128); //~ ERROR: uses type `i128`
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pub fn transparent_str(p: TransparentStr); //~ ERROR: uses type `str`
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pub fn transparent_fn(p: TransparentBadFn); //~ ERROR: uses type `Box<u32>`
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pub fn raw_array(arr: [u8; 8]); //~ ERROR: uses type `[u8; 8]`
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pub fn no_niche_a(a: Option<UnsafeCell<extern fn()>>);
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//~^ ERROR: uses type `Option<UnsafeCell<extern "C" fn()>>`
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pub fn no_niche_b(b: Option<UnsafeCell<&i32>>);
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//~^ ERROR: uses type `Option<UnsafeCell<&i32>>`
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pub static static_u128_type: u128; //~ ERROR: uses type `u128`
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pub static static_u128_array_type: [u128; 16]; //~ ERROR: uses type `u128`
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pub fn good3(fptr: Option<extern "C" fn()>);
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pub fn good4(aptr: &[u8; 4 as usize]);
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pub fn good5(s: StructWithProjection);
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pub fn good6(s: StructWithProjectionAndLifetime);
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pub fn good7(fptr: extern "C" fn() -> ());
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pub fn good8(fptr: extern "C" fn() -> !);
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pub fn good9() -> ();
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pub fn good10() -> CVoidRet;
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pub fn good11(size: isize);
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pub fn good12(size: usize);
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pub fn good13(n: TransparentInt);
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pub fn good14(p: TransparentRef);
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pub fn good15(p: TransparentLifetime);
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pub fn good16(p: TransparentUnit<ZeroSize>);
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pub fn good17(p: TransparentCustomZst);
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#[allow(improper_ctypes)]
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pub fn good18(_: &String);
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pub fn good20(arr: *const [u8; 8]);
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pub static good21: [u8; 8];
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}
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#[allow(improper_ctypes)]
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extern "C" {
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pub fn good19(_: &String);
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}
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#[cfg(not(target_arch = "wasm32"))]
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extern "C" {
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pub fn good1(size: *const c_int);
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pub fn good2(size: *const c_uint);
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}
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fn main() {
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}
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