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no_mangle attribute requires unsafe in Rust 2024
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,57 @@ | ||
| //@edition:2021 | ||
| // | ||
| // Edition 2024 requires the use of #[unsafe(no_mangle)] | ||
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| //@no-rustfix: overlapping suggestions | ||
| #![allow(unused)] | ||
| #![warn(clippy::no_mangle_with_rust_abi)] | ||
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| #[no_mangle] | ||
| fn rust_abi_fn_one(arg_one: u32, arg_two: usize) {} | ||
| //~^ ERROR: `#[no_mangle]` set on a function with the default (`Rust`) ABI | ||
| //~| NOTE: `-D clippy::no-mangle-with-rust-abi` implied by `-D warnings` | ||
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| #[no_mangle] | ||
| pub fn rust_abi_fn_two(arg_one: u32, arg_two: usize) {} | ||
| //~^ ERROR: `#[no_mangle]` set on a function with the default (`Rust`) ABI | ||
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| /// # Safety | ||
| /// This function shouldn't be called unless the horsemen are ready | ||
| #[no_mangle] | ||
| pub unsafe fn rust_abi_fn_three(arg_one: u32, arg_two: usize) {} | ||
| //~^ ERROR: `#[no_mangle]` set on a function with the default (`Rust`) ABI | ||
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| /// # Safety | ||
| /// This function shouldn't be called unless the horsemen are ready | ||
| #[no_mangle] | ||
| unsafe fn rust_abi_fn_four(arg_one: u32, arg_two: usize) {} | ||
| //~^ ERROR: `#[no_mangle]` set on a function with the default (`Rust`) ABI | ||
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| #[no_mangle] | ||
| fn rust_abi_multiline_function_really_long_name_to_overflow_args_to_multiple_lines( | ||
| //~^ ERROR: `#[no_mangle]` set on a function with the default (`Rust`) ABI | ||
| arg_one: u32, | ||
| arg_two: usize, | ||
| ) -> u32 { | ||
| 0 | ||
| } | ||
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| // Must not run on functions that explicitly opt in to using the Rust ABI with `extern "Rust"` | ||
| #[no_mangle] | ||
| #[rustfmt::skip] | ||
| extern "Rust" fn rust_abi_fn_explicit_opt_in(arg_one: u32, arg_two: usize) {} | ||
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| fn rust_abi_fn_again(arg_one: u32, arg_two: usize) {} | ||
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| #[no_mangle] | ||
| extern "C" fn c_abi_fn(arg_one: u32, arg_two: usize) {} | ||
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| extern "C" fn c_abi_fn_again(arg_one: u32, arg_two: usize) {} | ||
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| extern "C" { | ||
| fn c_abi_in_block(arg_one: u32, arg_two: usize); | ||
| } | ||
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| fn main() { | ||
| // test code goes here | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,83 @@ | ||
| error: `#[no_mangle]` set on a function with the default (`Rust`) ABI | ||
| --> tests/ui/no_mangle_with_rust_abi_2021.rs:10:1 | ||
| | | ||
| LL | fn rust_abi_fn_one(arg_one: u32, arg_two: usize) {} | ||
| | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | ||
| | | ||
| = note: `-D clippy::no-mangle-with-rust-abi` implied by `-D warnings` | ||
| = help: to override `-D warnings` add `#[allow(clippy::no_mangle_with_rust_abi)]` | ||
| help: set an ABI | ||
| | | ||
| LL | extern "C" fn rust_abi_fn_one(arg_one: u32, arg_two: usize) {} | ||
| | ++++++++++ | ||
| help: or explicitly set the default | ||
| | | ||
| LL | extern "Rust" fn rust_abi_fn_one(arg_one: u32, arg_two: usize) {} | ||
| | +++++++++++++ | ||
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| error: `#[no_mangle]` set on a function with the default (`Rust`) ABI | ||
| --> tests/ui/no_mangle_with_rust_abi_2021.rs:15:1 | ||
| | | ||
| LL | pub fn rust_abi_fn_two(arg_one: u32, arg_two: usize) {} | ||
| | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | ||
| | | ||
| help: set an ABI | ||
| | | ||
| LL | pub extern "C" fn rust_abi_fn_two(arg_one: u32, arg_two: usize) {} | ||
| | ++++++++++ | ||
| help: or explicitly set the default | ||
| | | ||
| LL | pub extern "Rust" fn rust_abi_fn_two(arg_one: u32, arg_two: usize) {} | ||
| | +++++++++++++ | ||
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| error: `#[no_mangle]` set on a function with the default (`Rust`) ABI | ||
| --> tests/ui/no_mangle_with_rust_abi_2021.rs:21:1 | ||
| | | ||
| LL | pub unsafe fn rust_abi_fn_three(arg_one: u32, arg_two: usize) {} | ||
| | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | ||
| | | ||
| help: set an ABI | ||
| | | ||
| LL | pub unsafe extern "C" fn rust_abi_fn_three(arg_one: u32, arg_two: usize) {} | ||
| | ++++++++++ | ||
| help: or explicitly set the default | ||
| | | ||
| LL | pub unsafe extern "Rust" fn rust_abi_fn_three(arg_one: u32, arg_two: usize) {} | ||
| | +++++++++++++ | ||
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| error: `#[no_mangle]` set on a function with the default (`Rust`) ABI | ||
| --> tests/ui/no_mangle_with_rust_abi_2021.rs:27:1 | ||
| | | ||
| LL | unsafe fn rust_abi_fn_four(arg_one: u32, arg_two: usize) {} | ||
| | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | ||
| | | ||
| help: set an ABI | ||
| | | ||
| LL | unsafe extern "C" fn rust_abi_fn_four(arg_one: u32, arg_two: usize) {} | ||
| | ++++++++++ | ||
| help: or explicitly set the default | ||
| | | ||
| LL | unsafe extern "Rust" fn rust_abi_fn_four(arg_one: u32, arg_two: usize) {} | ||
| | +++++++++++++ | ||
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| error: `#[no_mangle]` set on a function with the default (`Rust`) ABI | ||
| --> tests/ui/no_mangle_with_rust_abi_2021.rs:31:1 | ||
| | | ||
| LL | / fn rust_abi_multiline_function_really_long_name_to_overflow_args_to_multiple_lines( | ||
| LL | | | ||
| LL | | arg_one: u32, | ||
| LL | | arg_two: usize, | ||
| LL | | ) -> u32 { | ||
| | |________^ | ||
| | | ||
| help: set an ABI | ||
| | | ||
| LL | extern "C" fn rust_abi_multiline_function_really_long_name_to_overflow_args_to_multiple_lines( | ||
| | ++++++++++ | ||
| help: or explicitly set the default | ||
| | | ||
| LL | extern "Rust" fn rust_abi_multiline_function_really_long_name_to_overflow_args_to_multiple_lines( | ||
| | +++++++++++++ | ||
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| error: aborting due to 5 previous errors | ||
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