mirror of https://github.com/rust-lang/rust
27 lines
513 B
Rust
27 lines
513 B
Rust
macro_rules! m {
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($pat: pat) => {
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trait Tr {
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fn trait_method($pat: u8);
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}
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type A = fn($pat: u8);
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extern "C" {
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fn foreign_fn($pat: u8);
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}
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};
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}
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mod good_pat {
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m!(good_pat); // OK
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}
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mod bad_pat {
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m!((bad, pat));
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//~^ ERROR patterns aren't allowed in function pointer types
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//~| ERROR patterns aren't allowed in foreign function declarations
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//~| ERROR patterns aren't allowed in functions without bodies
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}
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fn main() {}
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