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This commit adds a test that causes a suggestion to replace `extern crate` with `use` when doing so would cause a compliation error, as the new name of the import would not be added to the prelude if a `use` was used.
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// aux-build:foo.rs | ||
// compile-flags:--extern foo | ||
// edition:2018 | ||
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#![deny(unused_extern_crates)] | ||
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extern crate foo as foo_renamed; | ||
//~^ ERROR `extern crate` is not idiomatic in the new edition | ||
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pub mod m { | ||
pub use foo_renamed::Foo; | ||
} | ||
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fn main() {} |
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error: `extern crate` is not idiomatic in the new edition | ||
--> $DIR/issue-57672.rs:7:1 | ||
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LL | extern crate foo as foo_renamed; | ||
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: convert it to a `use` | ||
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note: lint level defined here | ||
--> $DIR/issue-57672.rs:5:9 | ||
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LL | #![deny(unused_extern_crates)] | ||
| ^^^^^^^^^^^^^^^^^^^^ | ||
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error: aborting due to previous error | ||
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