mirror of https://github.com/rust-lang/rust
50 lines
781 B
Rust
50 lines
781 B
Rust
//@ run-pass
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#![allow(dead_code)]
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static mut DROP: isize = 0;
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static mut DROP_S: isize = 0;
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static mut DROP_T: isize = 0;
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struct S;
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impl Drop for S {
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fn drop(&mut self) {
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unsafe {
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DROP_S += 1;
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DROP += 1;
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}
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}
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}
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fn f(ref _s: S) {}
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struct T { i: isize }
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impl Drop for T {
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fn drop(&mut self) {
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unsafe {
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DROP_T += 1;
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DROP += 1;
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}
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}
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}
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fn g(ref _t: T) {}
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fn do_test() {
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let s = S;
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f(s);
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unsafe {
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assert_eq!(1, DROP);
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assert_eq!(1, DROP_S);
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}
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let t = T { i: 1 };
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g(t);
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unsafe { assert_eq!(1, DROP_T); }
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}
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fn main() {
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do_test();
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unsafe {
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assert_eq!(2, DROP);
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assert_eq!(1, DROP_S);
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assert_eq!(1, DROP_T);
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}
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}
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