X-Git-Url: https://git.lizzy.rs/?a=blobdiff_plain;f=src%2Ftest%2Fui%2Fnll%2Fissue-54556-used-vs-unused-tails.stderr;h=85920a8e7394c41953e6bfbf07146c8c5168bae9;hb=75561a56ac57c47762b5ddddf7bb2e6798d98e7c;hp=e9e4e51136d0a98eec6fd9c5af171fd9646cfc3a;hpb=bd8dd11d4d907b67ce20952c3a9ebe769e4ae547;p=rust.git diff --git a/src/test/ui/nll/issue-54556-used-vs-unused-tails.stderr b/src/test/ui/nll/issue-54556-used-vs-unused-tails.stderr index e9e4e51136d..85920a8e739 100644 --- a/src/test/ui/nll/issue-54556-used-vs-unused-tails.stderr +++ b/src/test/ui/nll/issue-54556-used-vs-unused-tails.stderr @@ -1,85 +1,145 @@ error[E0597]: `_t1` does not live long enough - --> $DIR/issue-54556-used-vs-unused-tails.rs:10:56 + --> $DIR/issue-54556-used-vs-unused-tails.rs:10:55 | LL | { let mut _t1 = D(Box::new("t1")); D(&_t1).end() } ; // suggest `;` - | ^^^ - - borrowed value needs to live until here - | | | - | | `_t1` dropped here while still borrowed - | borrowed value does not live long enough + | --^^^^- - - ... and the borrow might be used here, when that temporary is dropped and runs the `Drop` code for type `D` + | | | | + | | | `_t1` dropped here while still borrowed + | | borrowed value does not live long enough + | a temporary with access to the borrow is created here ... + | +help: consider adding semicolon after the expression so its temporaries are dropped sooner, before the local variables declared by the block are dropped + | +LL | { let mut _t1 = D(Box::new("t1")); D(&_t1).end(); } ; // suggest `;` + | ^ error[E0597]: `_t1` does not live long enough - --> $DIR/issue-54556-used-vs-unused-tails.rs:13:56 + --> $DIR/issue-54556-used-vs-unused-tails.rs:13:55 | LL | { { let mut _t1 = D(Box::new("t1")); D(&_t1).end() } } ; // suggest `;` - | ^^^ - - borrowed value needs to live until here - | | | - | | `_t1` dropped here while still borrowed - | borrowed value does not live long enough + | --^^^^- - - ... and the borrow might be used here, when that temporary is dropped and runs the `Drop` code for type `D` + | | | | + | | | `_t1` dropped here while still borrowed + | | borrowed value does not live long enough + | a temporary with access to the borrow is created here ... + | +help: consider adding semicolon after the expression so its temporaries are dropped sooner, before the local variables declared by the block are dropped + | +LL | { { let mut _t1 = D(Box::new("t1")); D(&_t1).end(); } } ; // suggest `;` + | ^ error[E0597]: `_t1` does not live long enough - --> $DIR/issue-54556-used-vs-unused-tails.rs:16:56 + --> $DIR/issue-54556-used-vs-unused-tails.rs:16:55 | LL | { { let mut _t1 = D(Box::new("t1")); D(&_t1).end() }; } // suggest `;` - | ^^^ -- borrowed value needs to live until here - | | | - | | `_t1` dropped here while still borrowed - | borrowed value does not live long enough + | --^^^^- -- ... and the borrow might be used here, when that temporary is dropped and runs the `Drop` code for type `D` + | | | | + | | | `_t1` dropped here while still borrowed + | | borrowed value does not live long enough + | a temporary with access to the borrow is created here ... + | +help: consider adding semicolon after the expression so its temporaries are dropped sooner, before the local variables declared by the block are dropped + | +LL | { { let mut _t1 = D(Box::new("t1")); D(&_t1).end(); }; } // suggest `;` + | ^ error[E0597]: `_t1` does not live long enough - --> $DIR/issue-54556-used-vs-unused-tails.rs:19:56 + --> $DIR/issue-54556-used-vs-unused-tails.rs:19:55 | LL | let _ = { let mut _t1 = D(Box::new("t1")); D(&_t1).end() } ; // suggest `;` - | ^^^ - - borrowed value needs to live until here - | | | - | | `_t1` dropped here while still borrowed - | borrowed value does not live long enough + | --^^^^- - - ... and the borrow might be used here, when that temporary is dropped and runs the `Drop` code for type `D` + | | | | + | | | `_t1` dropped here while still borrowed + | | borrowed value does not live long enough + | a temporary with access to the borrow is created here ... + | +help: consider adding semicolon after the expression so its temporaries are dropped sooner, before the local variables declared by the block are dropped + | +LL | let _ = { let mut _t1 = D(Box::new("t1")); D(&_t1).end(); } ; // suggest `;` + | ^ error[E0597]: `_t1` does not live long enough - --> $DIR/issue-54556-used-vs-unused-tails.rs:22:56 + --> $DIR/issue-54556-used-vs-unused-tails.rs:22:55 | LL | let _u = { let mut _t1 = D(Box::new("t1")); D(&_t1).unit() } ; // suggest `;` - | ^^^ - - borrowed value needs to live until here - | | | - | | `_t1` dropped here while still borrowed - | borrowed value does not live long enough + | --^^^^- - - ... and the borrow might be used here, when that temporary is dropped and runs the `Drop` code for type `D` + | | | | + | | | `_t1` dropped here while still borrowed + | | borrowed value does not live long enough + | a temporary with access to the borrow is created here ... + | +help: consider adding semicolon after the expression so its temporaries are dropped sooner, before the local variables declared by the block are dropped + | +LL | let _u = { let mut _t1 = D(Box::new("t1")); D(&_t1).unit(); } ; // suggest `;` + | ^ error[E0597]: `_t1` does not live long enough - --> $DIR/issue-54556-used-vs-unused-tails.rs:25:56 + --> $DIR/issue-54556-used-vs-unused-tails.rs:25:55 | LL | let _x = { let mut _t1 = D(Box::new("t1")); D(&_t1).end() } ; // `let x = ...; x` - | ^^^ - - borrowed value needs to live until here - | | | - | | `_t1` dropped here while still borrowed - | borrowed value does not live long enough + | --^^^^- - - ... and the borrow might be used here, when that temporary is dropped and runs the `Drop` code for type `D` + | | | | + | | | `_t1` dropped here while still borrowed + | | borrowed value does not live long enough + | a temporary with access to the borrow is created here ... + | + = note: the temporary is part of an expression at the end of a block; + consider forcing this temporary to be dropped sooner, before the block's local variables are dropped +help: for example, you could save the expression's value in a new local variable `x` and then make `x` be the expression at the end of the block + | +LL | let _x = { let mut _t1 = D(Box::new("t1")); let x = D(&_t1).end(); x } ; // `let x = ...; x` + | ^^^^^^^ ^^^ error[E0597]: `_t1` does not live long enough - --> $DIR/issue-54556-used-vs-unused-tails.rs:30:56 + --> $DIR/issue-54556-used-vs-unused-tails.rs:30:55 | LL | _y = { let mut _t1 = D(Box::new("t1")); D(&_t1).end() } ; // `let x = ...; x` - | ^^^ - - borrowed value needs to live until here - | | | - | | `_t1` dropped here while still borrowed - | borrowed value does not live long enough + | --^^^^- - - ... and the borrow might be used here, when that temporary is dropped and runs the `Drop` code for type `D` + | | | | + | | | `_t1` dropped here while still borrowed + | | borrowed value does not live long enough + | a temporary with access to the borrow is created here ... + | + = note: the temporary is part of an expression at the end of a block; + consider forcing this temporary to be dropped sooner, before the block's local variables are dropped +help: for example, you could save the expression's value in a new local variable `x` and then make `x` be the expression at the end of the block + | +LL | _y = { let mut _t1 = D(Box::new("t1")); let x = D(&_t1).end(); x } ; // `let x = ...; x` + | ^^^^^^^ ^^^ error[E0597]: `_t1` does not live long enough - --> $DIR/issue-54556-used-vs-unused-tails.rs:37:56 + --> $DIR/issue-54556-used-vs-unused-tails.rs:37:55 | LL | fn f_local_ref() { let mut _t1 = D(Box::new("t1")); D(&_t1).unit() } // suggest `;` - | ^^^ - `_t1` dropped here while still borrowed - | | - | borrowed value does not live long enough + | --^^^^- - + | | | | + | | | `_t1` dropped here while still borrowed + | | | ... and the borrow might be used here, when that temporary is dropped and runs the `Drop` code for type `D` + | | borrowed value does not live long enough + | a temporary with access to the borrow is created here ... | - = note: values in a scope are dropped in the opposite order they are created +help: consider adding semicolon after the expression so its temporaries are dropped sooner, before the local variables declared by the block are dropped + | +LL | fn f_local_ref() { let mut _t1 = D(Box::new("t1")); D(&_t1).unit(); } // suggest `;` + | ^ error[E0597]: `_t1` does not live long enough - --> $DIR/issue-54556-used-vs-unused-tails.rs:40:56 + --> $DIR/issue-54556-used-vs-unused-tails.rs:40:55 | LL | fn f() -> String { let mut _t1 = D(Box::new("t1")); D(&_t1).end() } // `let x = ...; x` - | ^^^ - `_t1` dropped here while still borrowed - | | - | borrowed value does not live long enough + | --^^^^- - + | | | | + | | | `_t1` dropped here while still borrowed + | | | ... and the borrow might be used here, when that temporary is dropped and runs the `Drop` code for type `D` + | | borrowed value does not live long enough + | a temporary with access to the borrow is created here ... + | + = note: the temporary is part of an expression at the end of a block; + consider forcing this temporary to be dropped sooner, before the block's local variables are dropped +help: for example, you could save the expression's value in a new local variable `x` and then make `x` be the expression at the end of the block | - = note: values in a scope are dropped in the opposite order they are created +LL | fn f() -> String { let mut _t1 = D(Box::new("t1")); let x = D(&_t1).end(); x } // `let x = ...; x` + | ^^^^^^^ ^^^ error: aborting due to 9 previous errors