mirror of https://github.com/rust-lang/rust
136 lines
4.8 KiB
Plaintext
136 lines
4.8 KiB
Plaintext
error: `extern` fn uses type `[u8]`, which is not FFI-safe
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--> $DIR/lint-ctypes-94223.rs:4:15
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LL | pub fn bad(f: extern "C" fn([u8])) {}
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| ^^^^^^^^^^^^^^^^^^^ not FFI-safe
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= help: consider using a raw pointer instead
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= note: slices have no C equivalent
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note: the lint level is defined here
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--> $DIR/lint-ctypes-94223.rs:2:9
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LL | #![deny(improper_ctypes_definitions)]
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^
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error: `extern` fn uses type `[u8]`, which is not FFI-safe
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--> $DIR/lint-ctypes-94223.rs:7:28
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LL | pub fn bad_twice(f: Result<extern "C" fn([u8]), extern "C" fn([u8])>) {}
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| ^^^^^^^^^^^^^^^^^^^ not FFI-safe
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= help: consider using a raw pointer instead
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= note: slices have no C equivalent
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error: `extern` fn uses type `[u8]`, which is not FFI-safe
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--> $DIR/lint-ctypes-94223.rs:7:49
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LL | pub fn bad_twice(f: Result<extern "C" fn([u8]), extern "C" fn([u8])>) {}
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| ^^^^^^^^^^^^^^^^^^^ not FFI-safe
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= help: consider using a raw pointer instead
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= note: slices have no C equivalent
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error: `extern` fn uses type `[u8]`, which is not FFI-safe
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--> $DIR/lint-ctypes-94223.rs:11:18
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LL | struct BadStruct(extern "C" fn([u8]));
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| ^^^^^^^^^^^^^^^^^^^ not FFI-safe
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= help: consider using a raw pointer instead
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= note: slices have no C equivalent
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error: `extern` fn uses type `[u8]`, which is not FFI-safe
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--> $DIR/lint-ctypes-94223.rs:15:7
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LL | A(extern "C" fn([u8])),
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| ^^^^^^^^^^^^^^^^^^^ not FFI-safe
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= help: consider using a raw pointer instead
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= note: slices have no C equivalent
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error: `extern` fn uses type `[u8]`, which is not FFI-safe
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--> $DIR/lint-ctypes-94223.rs:20:7
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LL | A(extern "C" fn([u8])),
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| ^^^^^^^^^^^^^^^^^^^ not FFI-safe
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= help: consider using a raw pointer instead
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= note: slices have no C equivalent
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error: `extern` fn uses type `[u8]`, which is not FFI-safe
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--> $DIR/lint-ctypes-94223.rs:24:12
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LL | type Foo = extern "C" fn([u8]);
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| ^^^^^^^^^^^^^^^^^^^ not FFI-safe
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= help: consider using a raw pointer instead
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= note: slices have no C equivalent
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error: `extern` fn uses type `Option<&<T as FooTrait>::FooType>`, which is not FFI-safe
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--> $DIR/lint-ctypes-94223.rs:31:20
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LL | pub type Foo2<T> = extern "C" fn(Option<&<T as FooTrait>::FooType>);
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ not FFI-safe
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= help: consider adding a `#[repr(C)]`, `#[repr(transparent)]`, or integer `#[repr(...)]` attribute to this enum
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= note: enum has no representation hint
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error: `extern` fn uses type `FfiUnsafe`, which is not FFI-safe
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--> $DIR/lint-ctypes-94223.rs:41:17
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LL | pub static BAD: extern "C" fn(FfiUnsafe) = f;
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| ^^^^^^^^^^^^^^^^^^^^^^^^ not FFI-safe
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= help: consider adding a `#[repr(C)]` or `#[repr(transparent)]` attribute to this struct
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= note: this struct has unspecified layout
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note: the type is defined here
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--> $DIR/lint-ctypes-94223.rs:34:1
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LL | pub struct FfiUnsafe;
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| ^^^^^^^^^^^^^^^^^^^^
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error: `extern` fn uses type `FfiUnsafe`, which is not FFI-safe
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--> $DIR/lint-ctypes-94223.rs:44:30
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LL | pub static BAD_TWICE: Result<extern "C" fn(FfiUnsafe), extern "C" fn(FfiUnsafe)> = Ok(f);
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| ^^^^^^^^^^^^^^^^^^^^^^^^ not FFI-safe
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= help: consider adding a `#[repr(C)]` or `#[repr(transparent)]` attribute to this struct
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= note: this struct has unspecified layout
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note: the type is defined here
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--> $DIR/lint-ctypes-94223.rs:34:1
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LL | pub struct FfiUnsafe;
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| ^^^^^^^^^^^^^^^^^^^^
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error: `extern` fn uses type `FfiUnsafe`, which is not FFI-safe
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--> $DIR/lint-ctypes-94223.rs:44:56
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LL | pub static BAD_TWICE: Result<extern "C" fn(FfiUnsafe), extern "C" fn(FfiUnsafe)> = Ok(f);
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| ^^^^^^^^^^^^^^^^^^^^^^^^ not FFI-safe
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= help: consider adding a `#[repr(C)]` or `#[repr(transparent)]` attribute to this struct
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= note: this struct has unspecified layout
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note: the type is defined here
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--> $DIR/lint-ctypes-94223.rs:34:1
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LL | pub struct FfiUnsafe;
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| ^^^^^^^^^^^^^^^^^^^^
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error: `extern` fn uses type `FfiUnsafe`, which is not FFI-safe
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--> $DIR/lint-ctypes-94223.rs:48:22
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LL | pub const BAD_CONST: extern "C" fn(FfiUnsafe) = f;
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| ^^^^^^^^^^^^^^^^^^^^^^^^ not FFI-safe
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= help: consider adding a `#[repr(C)]` or `#[repr(transparent)]` attribute to this struct
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= note: this struct has unspecified layout
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note: the type is defined here
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--> $DIR/lint-ctypes-94223.rs:34:1
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LL | pub struct FfiUnsafe;
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| ^^^^^^^^^^^^^^^^^^^^
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error: aborting due to 12 previous errors
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