diff --git a/compiler/rustc_lint/src/types.rs b/compiler/rustc_lint/src/types.rs index f9d0cd49708..3d042f21745 100644 --- a/compiler/rustc_lint/src/types.rs +++ b/compiler/rustc_lint/src/types.rs @@ -1320,7 +1320,10 @@ fn check_foreign_static(&mut self, id: hir::OwnerId, span: Span) { } fn is_internal_abi(&self, abi: SpecAbi) -> bool { - matches!(abi, SpecAbi::Rust | SpecAbi::RustCall | SpecAbi::RustIntrinsic) + matches!( + abi, + SpecAbi::Rust | SpecAbi::RustCall | SpecAbi::RustCold | SpecAbi::RustIntrinsic + ) } /// Find any fn-ptr types with external ABIs in `ty`. diff --git a/tests/ui/lint/rust-cold-fn-accept-improper-ctypes.rs b/tests/ui/lint/rust-cold-fn-accept-improper-ctypes.rs new file mode 100644 index 00000000000..dc929e14527 --- /dev/null +++ b/tests/ui/lint/rust-cold-fn-accept-improper-ctypes.rs @@ -0,0 +1,14 @@ +//@ check-pass +#![feature(rust_cold_cc)] + +// extern "rust-cold" is a "Rust" ABI so we accept `repr(Rust)` types as arg/ret without warnings. + +pub extern "rust-cold" fn f(_: ()) -> Result<(), ()> { + Ok(()) +} + +extern "rust-cold" { + pub fn g(_: ()) -> Result<(), ()>; +} + +fn main() {}