| // rust-lang/rust#55492: errors detected during MIR-borrowck's |
| // analysis of a closure body may only be caught when AST-borrowck |
| // looks at some parent. |
| |
| // transcribed from borrowck-closures-unique.rs |
| mod borrowck_closures_unique { |
| pub fn e(x: &'static mut isize) { |
| static mut Y: isize = 3; |
| let mut c1 = |y: &'static mut isize| x = y; |
| //~^ ERROR is not declared as mutable |
| unsafe { |
| c1(&mut Y); |
| //~^ WARN mutable reference to mutable static is discouraged [static_mut_refs] |
| } |
| } |
| } |
| |
| mod borrowck_closures_unique_grandparent { |
| pub fn ee(x: &'static mut isize) { |
| static mut Z: isize = 3; |
| let mut c1 = |z: &'static mut isize| { |
| let mut c2 = |y: &'static mut isize| x = y; |
| //~^ ERROR is not declared as mutable |
| c2(z); |
| }; |
| unsafe { |
| c1(&mut Z); |
| //~^ WARN mutable reference to mutable static is discouraged [static_mut_refs] |
| } |
| } |
| } |
| |
| // adapted from mutability_errors.rs |
| mod mutability_errors { |
| pub fn capture_assign_whole(x: (i32,)) { |
| || { |
| x = (1,); |
| //~^ ERROR is not declared as mutable |
| }; |
| } |
| pub fn capture_assign_part(x: (i32,)) { |
| || { |
| x.0 = 1; |
| //~^ ERROR is not declared as mutable |
| }; |
| } |
| pub fn capture_reborrow_whole(x: (i32,)) { |
| || { |
| &mut x; |
| //~^ ERROR is not declared as mutable |
| }; |
| } |
| pub fn capture_reborrow_part(x: (i32,)) { |
| || { |
| &mut x.0; |
| //~^ ERROR is not declared as mutable |
| }; |
| } |
| } |
| |
| fn main() { |
| static mut X: isize = 2; |
| unsafe { |
| borrowck_closures_unique::e(&mut X); |
| //~^ WARN mutable reference to mutable static is discouraged [static_mut_refs] |
| } |
| |
| mutability_errors::capture_assign_whole((1000,)); |
| mutability_errors::capture_assign_part((2000,)); |
| mutability_errors::capture_reborrow_whole((3000,)); |
| mutability_errors::capture_reborrow_part((4000,)); |
| } |