mirror of https://github.com/rust-lang/rust
28 lines
857 B
Rust
28 lines
857 B
Rust
pub const fn id<T>(x: T) -> T { x }
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pub const C: () = {
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let _: &'static _ = &String::new();
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//~^ ERROR: destructor of `String` cannot be evaluated at compile-time
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};
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pub const _: () = {
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let _: &'static _ = &id(&String::new());
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//~^ ERROR: destructor of `String` cannot be evaluated at compile-time
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};
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pub const _: () = {
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let _: &'static _ = &std::mem::ManuallyDrop::new(String::new());
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//~^ ERROR: temporary value dropped while borrowed
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};
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fn main() {
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let _: &'static _ = &String::new();
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//~^ ERROR: temporary value dropped while borrowed
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let _: &'static _ = &id(&String::new());
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//~^ ERROR: temporary value dropped while borrowed
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//~| ERROR: temporary value dropped while borrowed
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let _: &'static _ = &std::mem::ManuallyDrop::new(String::new());
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//~^ ERROR: temporary value dropped while borrowed
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}
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