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crates that provide a
panic_handler
are exempt from `unused_extern_…
…crates` fixes the *first* false positive reported in #53964
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-include ../tools.mk | ||
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all: | ||
$(RUSTC) panic.rs | ||
$(RUSTC) -C panic=abort --emit=obj app.rs -L $(TMPDIR) |
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#![crate_type = "bin"] | ||
#![no_main] | ||
#![no_std] | ||
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#![deny(unused_extern_crates)] | ||
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// `panic` provides a `panic_handler` so it shouldn't trip the `unused_extern_crates` lint | ||
extern crate panic; |
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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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#![crate_type = "lib"] | ||
#![feature(panic_handler)] | ||
#![no_std] | ||
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use core::panic::PanicInfo; | ||
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#[panic_handler] | ||
fn panic(_: &PanicInfo) -> ! { | ||
loop {} | ||
} |