rust/tests/ui/derives/derive-marker-tricky.rs

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// Test that `#[rustc_copy_clone_marker]` is not injected when a user-defined derive shadows
// a built-in derive in non-trivial scope (e.g. in a nested module).
// check-pass
// aux-build:derive-marker-tricky.rs
extern crate derive_marker_tricky;
mod m {
use derive_marker_tricky::NoMarker as Copy;
#[derive(Copy)]
struct S;
}
fn main() {}