mirror of https://github.com/rust-lang/rust
42 lines
642 B
Rust
42 lines
642 B
Rust
#![allow(unused_variables)]
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#![deny(dead_code)]
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#![feature(rustc_attrs, start)]
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struct Foo;
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trait Bar {
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fn bar1(&self);
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fn bar2(&self) {
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self.bar1();
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}
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}
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impl Bar for Foo {
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fn bar1(&self) {
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live_fn();
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}
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}
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fn live_fn() {}
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fn dead_fn() {} //~ ERROR: function `dead_fn` is never used
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#[rustc_main]
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fn dead_fn2() {} //~ ERROR: function `dead_fn2` is never used
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fn used_fn() {}
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#[start]
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fn start(_: isize, _: *const *const u8) -> isize {
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used_fn();
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let foo = Foo;
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foo.bar2();
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0
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}
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// this is not main
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fn main() { //~ ERROR: function `main` is never used
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dead_fn();
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dead_fn2();
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}
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