31 lines
924 B
Rust
31 lines
924 B
Rust
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#![warn(unused_attributes)]
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// Tests that placing the #[no_mangle] attribute on a foreign fn or static emits
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// a specialized warning.
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// The previous warning only talks about a "function or static" but foreign fns/statics
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// are also not allowed to have #[no_mangle]
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// build-pass
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extern "C" {
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#[no_mangle]
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//~^ WARNING `#[no_mangle]` has no effect on a foreign static
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//~^^ WARNING this was previously accepted by the compiler
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pub static FOO: u8;
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#[no_mangle]
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//~^ WARNING `#[no_mangle]` has no effect on a foreign function
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//~^^ WARNING this was previously accepted by the compiler
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pub fn bar();
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}
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fn no_new_warn() {
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// Should emit the generic "not a function or static" warning
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#[no_mangle]
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//~^ WARNING attribute should be applied to a free function, impl method or static
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//~^^ WARNING this was previously accepted by the compiler
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let x = 0_u8;
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}
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fn main() {}
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