mirror of https://github.com/rust-lang/rust
57 lines
1.2 KiB
Rust
57 lines
1.2 KiB
Rust
//@ check-pass
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#![warn(forgetting_copy_types)]
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use std::mem::forget;
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use std::vec::Vec;
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#[derive(Copy, Clone)]
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struct SomeStruct;
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struct AnotherStruct {
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x: u8,
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y: u8,
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z: Vec<u8>,
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}
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impl Clone for AnotherStruct {
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fn clone(&self) -> AnotherStruct {
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AnotherStruct {
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x: self.x,
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y: self.y,
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z: self.z.clone(),
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}
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}
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}
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fn main() {
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let s1 = SomeStruct {};
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let s2 = s1;
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let s3 = &s1;
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let mut s4 = s1;
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let ref s5 = s1;
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forget(s1); //~ WARN calls to `std::mem::forget`
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forget(s2); //~ WARN calls to `std::mem::forget`
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forget(s3); //~ WARN calls to `std::mem::forget`
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forget(s4); //~ WARN calls to `std::mem::forget`
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forget(s5); //~ WARN calls to `std::mem::forget`
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let a1 = AnotherStruct {
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x: 255,
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y: 0,
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z: vec![1, 2, 3],
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};
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let a2 = &a1;
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let mut a3 = a1.clone();
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let ref a4 = a1;
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let a5 = a1.clone();
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forget(a2); //~ WARN calls to `std::mem::forget`
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let a3 = &a1;
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forget(a3); //~ WARN calls to `std::mem::forget`
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forget(a4); //~ WARN calls to `std::mem::forget`
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let a5 = a1.clone();
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forget(a5);
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}
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