mirror of https://github.com/rust-lang/rust
34 lines
553 B
Rust
34 lines
553 B
Rust
//@ run-rustfix
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//@ edition:2018
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//@ check-pass
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#![warn(rust_2021_compatibility)]
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#[derive(Debug)]
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struct Foo(i32);
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impl Drop for Foo {
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fn drop(&mut self) {
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println!("{:?} dropped", self.0);
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}
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}
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macro_rules! m {
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(@ $body:expr) => {{
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let f = || $body;
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//~^ WARNING: drop order
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f();
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}};
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($body:block) => {{
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m!(@ $body);
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}};
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}
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fn main() {
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let a = (Foo(0), Foo(1));
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m!({
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let _ = &a;
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//~^ HELP: add a dummy
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let x = a.0;
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println!("{:?}", x);
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});
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}
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