mirror of https://github.com/rust-lang/rust
101 lines
1.8 KiB
Rust
101 lines
1.8 KiB
Rust
// check that existing borrows due to a closure capture give a special note
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fn move_while_borrowed(x: String) {
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let f = || x.len();
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let y = x; //~ ERROR
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f.use_ref();
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}
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fn borrow_mut_while_borrowed(mut x: i32) {
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let f = || x;
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let y = &mut x; //~ ERROR
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f.use_ref();
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}
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fn drop_while_borrowed() {
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let f;
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{
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let x = 1;
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f = || x; //~ ERROR
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}
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f.use_ref();
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}
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fn assign_while_borrowed(mut x: i32) {
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let f = || x;
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x = 1; //~ ERROR
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f.use_ref();
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}
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fn copy_while_borrowed_mut(mut x: i32) {
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let f = || x = 0;
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let y = x; //~ ERROR
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f.use_ref();
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}
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fn borrow_while_borrowed_mut(mut x: i32) {
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let f = || x = 0;
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let y = &x; //~ ERROR
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f.use_ref();
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}
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fn borrow_mut_while_borrowed_mut(mut x: i32) {
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let f = || x = 0;
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let y = &mut x; //~ ERROR
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f.use_ref();
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}
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fn drop_while_borrowed_mut() {
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let f;
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{
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let mut x = 1;
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f = || x = 0; //~ ERROR
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}
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f.use_ref();
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}
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fn assign_while_borrowed_mut(mut x: i32) {
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let f = || x = 0;
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x = 1; //~ ERROR
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f.use_ref();
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}
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fn copy_while_borrowed_unique(x: &mut i32) {
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let f = || *x = 0;
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let y = x; //~ ERROR
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f.use_ref();
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}
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fn borrow_while_borrowed_unique(x: &mut i32) {
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let f = || *x = 0;
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let y = &x; //~ ERROR
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f.use_ref();
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}
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fn borrow_mut_while_borrowed_unique(mut x: &mut i32) {
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let f = || *x = 0;
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let y = &mut x; //~ ERROR
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f.use_ref();
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}
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fn drop_while_borrowed_unique() {
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let mut z = 1;
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let f;
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{
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let x = &mut z;
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f = || *x = 0; //~ ERROR
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}
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f.use_ref();
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}
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fn assign_while_borrowed_unique(x: &mut i32) {
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let f = || *x = 0;
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*x = 1; //~ ERROR
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f.use_ref();
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}
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fn main() {}
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trait Fake { fn use_mut(&mut self) { } fn use_ref(&self) { } }
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impl<T> Fake for T { }
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