mirror of https://github.com/rust-lang/rust
34 lines
889 B
Rust
34 lines
889 B
Rust
// `#![derive]` raises errors when it occurs at contexts other than ADT
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// definitions.
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#[derive(Debug)]
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//~^ ERROR `derive` may only be applied to `struct`s, `enum`s and `union`s
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mod derive {
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mod inner { #![derive(Debug)] }
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//~^ ERROR `derive` may only be applied to `struct`s, `enum`s and `union`s
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//~| ERROR inner macro attributes are unstable
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#[derive(Debug)]
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//~^ ERROR `derive` may only be applied to `struct`s, `enum`s and `union`s
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fn derive() { }
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#[derive(Copy, Clone)] // (can't derive Debug for unions)
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union U { f: i32 }
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#[derive(Debug)]
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struct S;
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#[derive(Debug)]
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enum E { }
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#[derive(Debug)]
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//~^ ERROR `derive` may only be applied to `struct`s, `enum`s and `union`s
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type T = S;
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#[derive(Debug)]
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//~^ ERROR `derive` may only be applied to `struct`s, `enum`s and `union`s
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impl S { }
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}
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fn main() {}
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