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//@ aux-build:lint_unused_extern_crate.rs
//@ aux-build:lint_unused_extern_crate2.rs
//@ aux-build:lint_unused_extern_crate3.rs
//@ aux-build:lint_unused_extern_crate4.rs
//@ aux-build:lint_unused_extern_crate5.rs
#![deny(unused_extern_crates)]
#![allow(unused_variables)]
#![allow(deprecated)]
extern crate lint_unused_extern_crate5; //~ ERROR: unused extern crate
pub extern crate lint_unused_extern_crate4; // no error, it is re-exported
extern crate lint_unused_extern_crate3; // no error, it is used
extern crate lint_unused_extern_crate2; // no error, the use marks it as used
// even if imported objects aren't used
extern crate lint_unused_extern_crate as other; // no error, the use * marks it as used
#[allow(unused_imports)]
use lint_unused_extern_crate2::foo as bar;
use other::*;
mod foo {
// Test that this is unused even though an earlier `extern crate` is used.
extern crate lint_unused_extern_crate2; //~ ERROR unused extern crate
}
fn main() {
lint_unused_extern_crate3::foo();
foo();
}
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