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This commit polishes off this new function to compile on newer rustc as well as update and add a suite of test cases to work with this new check for lints.
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// Copyright 2018 The Rust Project Developers. See the COPYRIGHT | ||
// file at the top-level directory of this distribution and at | ||
// http://rust-lang.org/COPYRIGHT. | ||
// | ||
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or | ||
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license | ||
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your | ||
// option. This file may not be copied, modified, or distributed | ||
// except according to those terms. | ||
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// aux-build:lints-in-foreign-macros.rs | ||
// compile-pass | ||
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#![warn(unused_imports)] | ||
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#[macro_use] | ||
extern crate lints_in_foreign_macros; | ||
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macro_rules! foo { | ||
() => {use std::string::ToString;} //~ WARN: unused import | ||
} | ||
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mod a { foo!(); } | ||
mod b { bar!(); } | ||
mod c { baz!(use std::string::ToString;); } //~ WARN: unused import | ||
mod d { baz2!(use std::string::ToString;); } //~ WARN: unused import | ||
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fn main() {} |
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warning: unused import: `std::string::ToString` | ||
--> $DIR/lints-in-foreign-macros.rs:20:16 | ||
| | ||
LL | () => {use std::string::ToString;} //~ WARN: unused import | ||
| ^^^^^^^^^^^^^^^^^^^^^ | ||
... | ||
LL | mod a { foo!(); } | ||
| ------- in this macro invocation | ||
| | ||
note: lint level defined here | ||
--> $DIR/lints-in-foreign-macros.rs:14:9 | ||
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LL | #![warn(unused_imports)] | ||
| ^^^^^^^^^^^^^^ | ||
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warning: unused import: `std::string::ToString` | ||
--> $DIR/lints-in-foreign-macros.rs:25:18 | ||
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LL | mod c { baz!(use std::string::ToString;); } //~ WARN: unused import | ||
| ^^^^^^^^^^^^^^^^^^^^^ | ||
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warning: unused import: `std::string::ToString` | ||
--> $DIR/lints-in-foreign-macros.rs:26:19 | ||
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LL | mod d { baz2!(use std::string::ToString;); } //~ WARN: unused import | ||
| ^^^^^^^^^^^^^^^^^^^^^ | ||
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