diff options
Diffstat (limited to 'tests/ui/closures/2229_closure_analysis/run_pass/capture-disjoint-field-struct.rs')
-rw-r--r-- | tests/ui/closures/2229_closure_analysis/run_pass/capture-disjoint-field-struct.rs | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/tests/ui/closures/2229_closure_analysis/run_pass/capture-disjoint-field-struct.rs b/tests/ui/closures/2229_closure_analysis/run_pass/capture-disjoint-field-struct.rs new file mode 100644 index 000000000..3cb1eb329 --- /dev/null +++ b/tests/ui/closures/2229_closure_analysis/run_pass/capture-disjoint-field-struct.rs @@ -0,0 +1,24 @@ +// edition:2021 +// run-pass + +// Test that we can immutably borrow field of an instance of a structure from within a closure, +// while having a mutable borrow to another field of the same instance outside the closure. + +struct Point { + x: i32, + y: i32, +} + +fn main() { + let mut p = Point { x: 10, y: 10 }; + + let c = || { + println!("{}", p.x); + }; + + // `c` should only capture `p.x`, therefore mutating `p.y` is allowed. + let py = &mut p.y; + + c(); + *py = 20; +} |