rust/tests/ui/extern/issue-16250.rs

#![deny(warnings)]

pub struct Foo;

extern "C" {
    pub fn foo(x: (Foo)); //~ ERROR `extern` block uses type `Foo`
}

fn main() {}
Use a visitor to look for non-FFI-safe types Fixes #16250. 2014-09-04 02:03:25 +00:00			`#![deny(warnings)]`

rustc: Don't lint about isize/usize in FFI This lint warning was originally intended to help against misuse of the old Rust `int` and `uint` types in FFI bindings where the Rust `int` was not equal to the C `int`. This confusion no longer exists (as Rust's types are now `isize` and `usize`), and as a result the need for this lint has become much less over time. Additionally, starting with [the RFC for libc][rfc] it's likely that `isize` and `usize` will be quite common in FFI bindings (e.g. they're the definition of `size_t` and `ssize_t` on many platforms). [rfc]: https://github.com/rust-lang/rfcs/pull/1291 This commit disables these lints to instead consider `isize` and `usize` valid types to have in FFI signatures. 2015-09-30 21:31:01 +00:00			`pub struct Foo;`

Update tests for extern block linting 2020-09-01 21:12:52 +00:00			`extern "C" {`
Refactor "not FFI-safe" diagnostic 2019-09-10 21:29:31 +00:00			pub fn foo(x: (Foo)); //~ ERROR `extern` block uses type `Foo`
Use a visitor to look for non-FFI-safe types Fixes #16250. 2014-09-04 02:03:25 +00:00			`}`

Update tests for extern block linting 2020-09-01 21:12:52 +00:00			`fn main() {}`