Add improper ctypes test for ptr to unit, ptr to tuple
This commit is contained in:
David Tolnay
parent
9e6f0e878d
commit
c17e3e2c09
4 changed files with 69 additions and 45 deletions
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@ -66,6 +66,10 @@ pub extern "C" fn ptr_type1(size: *const Foo) { }
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pub extern "C" fn ptr_type2(size: *const Foo) { }
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pub extern "C" fn ptr_unit(p: *const ()) { }
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pub extern "C" fn ptr_tuple(p: *const ((),)) { }
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pub extern "C" fn slice_type(p: &[u32]) { }
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//~^ ERROR: uses type `[u32]`
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@ -1,5 +1,5 @@
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error: `extern` fn uses type `[u32]`, which is not FFI-safe
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--> $DIR/lint-ctypes-fn.rs:69:33
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--> $DIR/lint-ctypes-fn.rs:73:33
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LL | pub extern "C" fn slice_type(p: &[u32]) { }
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| ^^^^^^ not FFI-safe
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@ -13,7 +13,7 @@ LL | #![deny(improper_ctypes_definitions)]
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= note: slices have no C equivalent
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error: `extern` fn uses type `str`, which is not FFI-safe
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--> $DIR/lint-ctypes-fn.rs:72:31
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--> $DIR/lint-ctypes-fn.rs:76:31
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LL | pub extern "C" fn str_type(p: &str) { }
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| ^^^^ not FFI-safe
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@ -22,7 +22,7 @@ LL | pub extern "C" fn str_type(p: &str) { }
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= note: string slices have no C equivalent
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error: `extern` fn uses type `Box<[u8]>`, which is not FFI-safe
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--> $DIR/lint-ctypes-fn.rs:79:34
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--> $DIR/lint-ctypes-fn.rs:83:34
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LL | pub extern "C" fn boxed_slice(p: Box<[u8]>) { }
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| ^^^^^^^^^ not FFI-safe
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@ -30,7 +30,7 @@ LL | pub extern "C" fn boxed_slice(p: Box<[u8]>) { }
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= note: box cannot be represented as a single pointer
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error: `extern` fn uses type `Box<str>`, which is not FFI-safe
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--> $DIR/lint-ctypes-fn.rs:82:35
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--> $DIR/lint-ctypes-fn.rs:86:35
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LL | pub extern "C" fn boxed_string(p: Box<str>) { }
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| ^^^^^^^^ not FFI-safe
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@ -38,7 +38,7 @@ LL | pub extern "C" fn boxed_string(p: Box<str>) { }
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= note: box cannot be represented as a single pointer
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error: `extern` fn uses type `Box<dyn Trait>`, which is not FFI-safe
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--> $DIR/lint-ctypes-fn.rs:85:34
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--> $DIR/lint-ctypes-fn.rs:89:34
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LL | pub extern "C" fn boxed_trait(p: Box<dyn Trait>) { }
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| ^^^^^^^^^^^^^^ not FFI-safe
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@ -46,7 +46,7 @@ LL | pub extern "C" fn boxed_trait(p: Box<dyn Trait>) { }
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= note: box cannot be represented as a single pointer
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error: `extern` fn uses type `char`, which is not FFI-safe
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--> $DIR/lint-ctypes-fn.rs:88:32
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--> $DIR/lint-ctypes-fn.rs:92:32
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LL | pub extern "C" fn char_type(p: char) { }
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| ^^^^ not FFI-safe
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@ -55,7 +55,7 @@ LL | pub extern "C" fn char_type(p: char) { }
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= note: the `char` type has no C equivalent
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error: `extern` fn uses type `i128`, which is not FFI-safe
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--> $DIR/lint-ctypes-fn.rs:91:32
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--> $DIR/lint-ctypes-fn.rs:95:32
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LL | pub extern "C" fn i128_type(p: i128) { }
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| ^^^^ not FFI-safe
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@ -63,7 +63,7 @@ LL | pub extern "C" fn i128_type(p: i128) { }
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= note: 128-bit integers don't currently have a known stable ABI
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error: `extern` fn uses type `u128`, which is not FFI-safe
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--> $DIR/lint-ctypes-fn.rs:94:32
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--> $DIR/lint-ctypes-fn.rs:98:32
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LL | pub extern "C" fn u128_type(p: u128) { }
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| ^^^^ not FFI-safe
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@ -71,7 +71,7 @@ LL | pub extern "C" fn u128_type(p: u128) { }
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= note: 128-bit integers don't currently have a known stable ABI
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error: `extern` fn uses type `(i32, i32)`, which is not FFI-safe
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--> $DIR/lint-ctypes-fn.rs:97:33
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--> $DIR/lint-ctypes-fn.rs:101:33
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LL | pub extern "C" fn tuple_type(p: (i32, i32)) { }
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| ^^^^^^^^^^ not FFI-safe
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@ -80,7 +80,7 @@ LL | pub extern "C" fn tuple_type(p: (i32, i32)) { }
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= note: tuples have unspecified layout
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error: `extern` fn uses type `(i32, i32)`, which is not FFI-safe
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--> $DIR/lint-ctypes-fn.rs:100:34
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--> $DIR/lint-ctypes-fn.rs:104:34
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LL | pub extern "C" fn tuple_type2(p: I32Pair) { }
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| ^^^^^^^ not FFI-safe
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@ -89,7 +89,7 @@ LL | pub extern "C" fn tuple_type2(p: I32Pair) { }
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= note: tuples have unspecified layout
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error: `extern` fn uses type `ZeroSize`, which is not FFI-safe
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--> $DIR/lint-ctypes-fn.rs:103:32
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--> $DIR/lint-ctypes-fn.rs:107:32
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LL | pub extern "C" fn zero_size(p: ZeroSize) { }
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| ^^^^^^^^ not FFI-safe
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@ -103,7 +103,7 @@ LL | pub struct ZeroSize;
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| ^^^^^^^^^^^^^^^^^^^^
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error: `extern` fn uses type `ZeroSizeWithPhantomData`, which is not FFI-safe
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--> $DIR/lint-ctypes-fn.rs:106:40
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--> $DIR/lint-ctypes-fn.rs:110:40
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LL | pub extern "C" fn zero_size_phantom(p: ZeroSizeWithPhantomData) { }
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| ^^^^^^^^^^^^^^^^^^^^^^^ not FFI-safe
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@ -116,7 +116,7 @@ LL | pub struct ZeroSizeWithPhantomData(PhantomData<i32>);
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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error: `extern` fn uses type `PhantomData<bool>`, which is not FFI-safe
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--> $DIR/lint-ctypes-fn.rs:109:51
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--> $DIR/lint-ctypes-fn.rs:113:51
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LL | pub extern "C" fn zero_size_phantom_toplevel() -> PhantomData<bool> {
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| ^^^^^^^^^^^^^^^^^ not FFI-safe
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@ -124,7 +124,7 @@ LL | pub extern "C" fn zero_size_phantom_toplevel() -> PhantomData<bool> {
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= note: composed only of `PhantomData`
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error: `extern` fn uses type `fn()`, which is not FFI-safe
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--> $DIR/lint-ctypes-fn.rs:114:30
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--> $DIR/lint-ctypes-fn.rs:118:30
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LL | pub extern "C" fn fn_type(p: RustFn) { }
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| ^^^^^^ not FFI-safe
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@ -133,7 +133,7 @@ LL | pub extern "C" fn fn_type(p: RustFn) { }
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= note: this function pointer has Rust-specific calling convention
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error: `extern` fn uses type `fn()`, which is not FFI-safe
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--> $DIR/lint-ctypes-fn.rs:117:31
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--> $DIR/lint-ctypes-fn.rs:121:31
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LL | pub extern "C" fn fn_type2(p: fn()) { }
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| ^^^^ not FFI-safe
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@ -142,7 +142,7 @@ LL | pub extern "C" fn fn_type2(p: fn()) { }
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= note: this function pointer has Rust-specific calling convention
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error: `extern` fn uses type `i128`, which is not FFI-safe
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--> $DIR/lint-ctypes-fn.rs:122:39
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--> $DIR/lint-ctypes-fn.rs:126:39
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LL | pub extern "C" fn transparent_i128(p: TransparentI128) { }
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| ^^^^^^^^^^^^^^^ not FFI-safe
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@ -150,7 +150,7 @@ LL | pub extern "C" fn transparent_i128(p: TransparentI128) { }
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= note: 128-bit integers don't currently have a known stable ABI
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error: `extern` fn uses type `str`, which is not FFI-safe
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--> $DIR/lint-ctypes-fn.rs:125:38
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--> $DIR/lint-ctypes-fn.rs:129:38
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LL | pub extern "C" fn transparent_str(p: TransparentStr) { }
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| ^^^^^^^^^^^^^^ not FFI-safe
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@ -159,7 +159,7 @@ LL | pub extern "C" fn transparent_str(p: TransparentStr) { }
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= note: string slices have no C equivalent
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error: `extern` fn uses type `PhantomData<bool>`, which is not FFI-safe
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--> $DIR/lint-ctypes-fn.rs:171:43
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--> $DIR/lint-ctypes-fn.rs:175:43
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LL | pub extern "C" fn unused_generic2<T>() -> PhantomData<bool> {
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| ^^^^^^^^^^^^^^^^^ not FFI-safe
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@ -167,7 +167,7 @@ LL | pub extern "C" fn unused_generic2<T>() -> PhantomData<bool> {
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= note: composed only of `PhantomData`
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error: `extern` fn uses type `Vec<T>`, which is not FFI-safe
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--> $DIR/lint-ctypes-fn.rs:184:39
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--> $DIR/lint-ctypes-fn.rs:188:39
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LL | pub extern "C" fn used_generic4<T>(x: Vec<T>) { }
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| ^^^^^^ not FFI-safe
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@ -176,7 +176,7 @@ LL | pub extern "C" fn used_generic4<T>(x: Vec<T>) { }
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= note: this struct has unspecified layout
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error: `extern` fn uses type `Vec<T>`, which is not FFI-safe
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--> $DIR/lint-ctypes-fn.rs:187:41
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--> $DIR/lint-ctypes-fn.rs:191:41
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LL | pub extern "C" fn used_generic5<T>() -> Vec<T> {
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| ^^^^^^ not FFI-safe
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@ -47,6 +47,8 @@ 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 ()); //~ ERROR: uses type `()`
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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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@ -31,8 +31,26 @@ note: the type is defined here
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LL | pub struct Foo;
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| ^^^^^^^^^^^^^^^
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error: `extern` block uses type `()`, which is not FFI-safe
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--> $DIR/lint-ctypes.rs:50:24
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LL | pub fn ptr_unit(p: *const ());
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| ^^^^^^^^^ not FFI-safe
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= help: consider using a struct instead
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= note: tuples have unspecified layout
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error: `extern` block uses type `((),)`, which is not FFI-safe
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--> $DIR/lint-ctypes.rs:51:25
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LL | pub fn ptr_tuple(p: *const ((),));
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| ^^^^^^^^^^^^ not FFI-safe
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= help: consider using a struct instead
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= note: tuples have unspecified layout
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error: `extern` block uses type `[u32]`, which is not FFI-safe
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--> $DIR/lint-ctypes.rs:50:26
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--> $DIR/lint-ctypes.rs:52:26
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LL | pub fn slice_type(p: &[u32]);
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| ^^^^^^ not FFI-safe
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@ -41,7 +59,7 @@ LL | pub fn slice_type(p: &[u32]);
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= note: slices have no C equivalent
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error: `extern` block uses type `str`, which is not FFI-safe
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--> $DIR/lint-ctypes.rs:51:24
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--> $DIR/lint-ctypes.rs:53:24
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LL | pub fn str_type(p: &str);
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| ^^^^ not FFI-safe
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@ -50,7 +68,7 @@ LL | pub fn str_type(p: &str);
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= note: string slices have no C equivalent
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error: `extern` block uses type `Box<u32>`, which is not FFI-safe
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--> $DIR/lint-ctypes.rs:52:24
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--> $DIR/lint-ctypes.rs:54:24
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LL | pub fn box_type(p: Box<u32>);
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| ^^^^^^^^ not FFI-safe
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@ -59,7 +77,7 @@ LL | pub fn box_type(p: Box<u32>);
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= note: this struct has unspecified layout
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error: `extern` block uses type `Option<Box<u32>>`, which is not FFI-safe
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--> $DIR/lint-ctypes.rs:53:28
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--> $DIR/lint-ctypes.rs:55:28
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LL | pub fn opt_box_type(p: Option<Box<u32>>);
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| ^^^^^^^^^^^^^^^^ not FFI-safe
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@ -68,7 +86,7 @@ LL | pub fn opt_box_type(p: Option<Box<u32>>);
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= note: enum has no representation hint
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error: `extern` block uses type `char`, which is not FFI-safe
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--> $DIR/lint-ctypes.rs:55:25
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--> $DIR/lint-ctypes.rs:57:25
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LL | pub fn char_type(p: char);
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| ^^^^ not FFI-safe
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@ -77,7 +95,7 @@ LL | pub fn char_type(p: char);
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= note: the `char` type has no C equivalent
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error: `extern` block uses type `i128`, which is not FFI-safe
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--> $DIR/lint-ctypes.rs:56:25
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--> $DIR/lint-ctypes.rs:58:25
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LL | pub fn i128_type(p: i128);
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| ^^^^ not FFI-safe
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@ -85,7 +103,7 @@ LL | pub fn i128_type(p: i128);
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= note: 128-bit integers don't currently have a known stable ABI
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error: `extern` block uses type `u128`, which is not FFI-safe
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--> $DIR/lint-ctypes.rs:57:25
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--> $DIR/lint-ctypes.rs:59:25
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LL | pub fn u128_type(p: u128);
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| ^^^^ not FFI-safe
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@ -93,7 +111,7 @@ LL | pub fn u128_type(p: u128);
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= note: 128-bit integers don't currently have a known stable ABI
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error: `extern` block uses type `dyn Bar`, which is not FFI-safe
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--> $DIR/lint-ctypes.rs:58:26
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--> $DIR/lint-ctypes.rs:60:26
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LL | pub fn trait_type(p: &dyn Bar);
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| ^^^^^^^^ not FFI-safe
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@ -101,7 +119,7 @@ LL | pub fn trait_type(p: &dyn Bar);
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= note: trait objects have no C equivalent
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error: `extern` block uses type `(i32, i32)`, which is not FFI-safe
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--> $DIR/lint-ctypes.rs:59:26
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--> $DIR/lint-ctypes.rs:61:26
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LL | pub fn tuple_type(p: (i32, i32));
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| ^^^^^^^^^^ not FFI-safe
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@ -110,7 +128,7 @@ LL | pub fn tuple_type(p: (i32, i32));
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= note: tuples have unspecified layout
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error: `extern` block uses type `(i32, i32)`, which is not FFI-safe
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--> $DIR/lint-ctypes.rs:60:27
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--> $DIR/lint-ctypes.rs:62:27
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LL | pub fn tuple_type2(p: I32Pair);
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| ^^^^^^^ not FFI-safe
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@ -119,7 +137,7 @@ LL | pub fn tuple_type2(p: I32Pair);
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= note: tuples have unspecified layout
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error: `extern` block uses type `ZeroSize`, which is not FFI-safe
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--> $DIR/lint-ctypes.rs:61:25
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--> $DIR/lint-ctypes.rs:63:25
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LL | pub fn zero_size(p: ZeroSize);
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| ^^^^^^^^ not FFI-safe
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@ -133,7 +151,7 @@ LL | pub struct ZeroSize;
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| ^^^^^^^^^^^^^^^^^^^^
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error: `extern` block uses type `ZeroSizeWithPhantomData`, which is not FFI-safe
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--> $DIR/lint-ctypes.rs:62:33
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--> $DIR/lint-ctypes.rs:64:33
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LL | pub fn zero_size_phantom(p: ZeroSizeWithPhantomData);
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| ^^^^^^^^^^^^^^^^^^^^^^^ not FFI-safe
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@ -146,7 +164,7 @@ LL | pub struct ZeroSizeWithPhantomData(::std::marker::PhantomData<i32>);
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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error: `extern` block uses type `PhantomData<bool>`, which is not FFI-safe
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--> $DIR/lint-ctypes.rs:65:12
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--> $DIR/lint-ctypes.rs:67:12
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LL | -> ::std::marker::PhantomData<bool>;
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ not FFI-safe
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@ -154,7 +172,7 @@ LL | -> ::std::marker::PhantomData<bool>;
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= note: composed only of `PhantomData`
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error: `extern` block uses type `fn()`, which is not FFI-safe
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--> $DIR/lint-ctypes.rs:66:23
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--> $DIR/lint-ctypes.rs:68:23
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LL | pub fn fn_type(p: RustFn);
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| ^^^^^^ not FFI-safe
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@ -163,7 +181,7 @@ LL | pub fn fn_type(p: RustFn);
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= note: this function pointer has Rust-specific calling convention
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error: `extern` block uses type `fn()`, which is not FFI-safe
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--> $DIR/lint-ctypes.rs:67:24
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--> $DIR/lint-ctypes.rs:69:24
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LL | pub fn fn_type2(p: fn());
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| ^^^^ not FFI-safe
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@ -172,7 +190,7 @@ LL | pub fn fn_type2(p: fn());
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= note: this function pointer has Rust-specific calling convention
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error: `extern` block uses type `Box<u32>`, which is not FFI-safe
|
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--> $DIR/lint-ctypes.rs:68:28
|
||||
--> $DIR/lint-ctypes.rs:70:28
|
||||
|
|
||||
LL | pub fn fn_contained(p: RustBadRet);
|
||||
| ^^^^^^^^^^ not FFI-safe
|
||||
|
|
@ -181,7 +199,7 @@ LL | pub fn fn_contained(p: RustBadRet);
|
|||
= note: this struct has unspecified layout
|
||||
|
||||
error: `extern` block uses type `i128`, which is not FFI-safe
|
||||
--> $DIR/lint-ctypes.rs:69:32
|
||||
--> $DIR/lint-ctypes.rs:71:32
|
||||
|
|
||||
LL | pub fn transparent_i128(p: TransparentI128);
|
||||
| ^^^^^^^^^^^^^^^ not FFI-safe
|
||||
|
|
@ -189,7 +207,7 @@ LL | pub fn transparent_i128(p: TransparentI128);
|
|||
= note: 128-bit integers don't currently have a known stable ABI
|
||||
|
||||
error: `extern` block uses type `str`, which is not FFI-safe
|
||||
--> $DIR/lint-ctypes.rs:70:31
|
||||
--> $DIR/lint-ctypes.rs:72:31
|
||||
|
|
||||
LL | pub fn transparent_str(p: TransparentStr);
|
||||
| ^^^^^^^^^^^^^^ not FFI-safe
|
||||
|
|
@ -198,7 +216,7 @@ LL | pub fn transparent_str(p: TransparentStr);
|
|||
= note: string slices have no C equivalent
|
||||
|
||||
error: `extern` block uses type `Box<u32>`, which is not FFI-safe
|
||||
--> $DIR/lint-ctypes.rs:71:30
|
||||
--> $DIR/lint-ctypes.rs:73:30
|
||||
|
|
||||
LL | pub fn transparent_fn(p: TransparentBadFn);
|
||||
| ^^^^^^^^^^^^^^^^ not FFI-safe
|
||||
|
|
@ -207,7 +225,7 @@ LL | pub fn transparent_fn(p: TransparentBadFn);
|
|||
= note: this struct has unspecified layout
|
||||
|
||||
error: `extern` block uses type `[u8; 8]`, which is not FFI-safe
|
||||
--> $DIR/lint-ctypes.rs:72:27
|
||||
--> $DIR/lint-ctypes.rs:74:27
|
||||
|
|
||||
LL | pub fn raw_array(arr: [u8; 8]);
|
||||
| ^^^^^^^ not FFI-safe
|
||||
|
|
@ -216,7 +234,7 @@ LL | pub fn raw_array(arr: [u8; 8]);
|
|||
= note: passing raw arrays by value is not FFI-safe
|
||||
|
||||
error: `extern` block uses type `Option<UnsafeCell<extern "C" fn()>>`, which is not FFI-safe
|
||||
--> $DIR/lint-ctypes.rs:74:26
|
||||
--> $DIR/lint-ctypes.rs:76:26
|
||||
|
|
||||
LL | pub fn no_niche_a(a: Option<UnsafeCell<extern fn()>>);
|
||||
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ not FFI-safe
|
||||
|
|
@ -225,7 +243,7 @@ LL | pub fn no_niche_a(a: Option<UnsafeCell<extern fn()>>);
|
|||
= note: enum has no representation hint
|
||||
|
||||
error: `extern` block uses type `Option<UnsafeCell<&i32>>`, which is not FFI-safe
|
||||
--> $DIR/lint-ctypes.rs:76:26
|
||||
--> $DIR/lint-ctypes.rs:78:26
|
||||
|
|
||||
LL | pub fn no_niche_b(b: Option<UnsafeCell<&i32>>);
|
||||
| ^^^^^^^^^^^^^^^^^^^^^^^^ not FFI-safe
|
||||
|
|
@ -234,7 +252,7 @@ LL | pub fn no_niche_b(b: Option<UnsafeCell<&i32>>);
|
|||
= note: enum has no representation hint
|
||||
|
||||
error: `extern` block uses type `u128`, which is not FFI-safe
|
||||
--> $DIR/lint-ctypes.rs:79:34
|
||||
--> $DIR/lint-ctypes.rs:81:34
|
||||
|
|
||||
LL | pub static static_u128_type: u128;
|
||||
| ^^^^ not FFI-safe
|
||||
|
|
@ -242,12 +260,12 @@ LL | pub static static_u128_type: u128;
|
|||
= note: 128-bit integers don't currently have a known stable ABI
|
||||
|
||||
error: `extern` block uses type `u128`, which is not FFI-safe
|
||||
--> $DIR/lint-ctypes.rs:80:40
|
||||
--> $DIR/lint-ctypes.rs:82:40
|
||||
|
|
||||
LL | pub static static_u128_array_type: [u128; 16];
|
||||
| ^^^^^^^^^^ not FFI-safe
|
||||
|
|
||||
= note: 128-bit integers don't currently have a known stable ABI
|
||||
|
||||
error: aborting due to 26 previous errors
|
||||
error: aborting due to 28 previous errors
|
||||
|
||||
|
|
|
|||
Loading…
Reference in a new issue