diff options
Diffstat (limited to 'src/test/ui/borrowck/borrowck-closures-unique.rs')
-rw-r--r-- | src/test/ui/borrowck/borrowck-closures-unique.rs | 54 |
1 files changed, 0 insertions, 54 deletions
diff --git a/src/test/ui/borrowck/borrowck-closures-unique.rs b/src/test/ui/borrowck/borrowck-closures-unique.rs deleted file mode 100644 index 67f91dfa8..000000000 --- a/src/test/ui/borrowck/borrowck-closures-unique.rs +++ /dev/null @@ -1,54 +0,0 @@ -// Tests that a closure which requires mutable access to the referent -// of an `&mut` requires a "unique" borrow -- that is, the variable to -// be borrowed (here, `x`) will not be borrowed *mutably*, but -// may be *immutable*, but we cannot allow -// multiple borrows. - - - -fn get(x: &isize) -> isize { - *x -} - -fn set(x: &mut isize) -> isize { - *x -} - -fn a(x: &mut isize) { - let c1 = || get(x); - let c2 = || get(x); - c1(); - c2(); -} - -fn b(x: &mut isize) { - let c1 = || get(x); - let c2 = || set(x); //~ ERROR closure requires unique access to `x` - c1; -} - -fn c(x: &mut isize) { - let c1 = || get(x); - let c2 = || { get(x); set(x); }; //~ ERROR closure requires unique access to `x` - c1; -} - -fn d(x: &mut isize) { - let c1 = || set(x); - let c2 = || set(x); //~ ERROR two closures require unique access to `x` at the same time - c1; -} - -fn e(x: &'static mut isize) { - let c1 = |y: &'static mut isize| x = y; - //~^ ERROR cannot assign to `x`, as it is not declared as mutable - c1; -} - -fn f(x: &'static mut isize) { - let c1 = || x = panic!(); // OK assignment is unreachable. - c1; -} - -fn main() { -} |