diff options
Diffstat (limited to 'src/test/ui/closures/2229_closure_analysis/capture-enum-field.rs')
-rw-r--r-- | src/test/ui/closures/2229_closure_analysis/capture-enum-field.rs | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/src/test/ui/closures/2229_closure_analysis/capture-enum-field.rs b/src/test/ui/closures/2229_closure_analysis/capture-enum-field.rs new file mode 100644 index 000000000..bbe3aa31a --- /dev/null +++ b/src/test/ui/closures/2229_closure_analysis/capture-enum-field.rs @@ -0,0 +1,27 @@ +// edition:2021 +// run-pass + +#[derive(Debug, PartialEq, Eq)] +pub enum Color { + RGB(u8, u8, u8), +} + +fn main() { + let mut color = Color::RGB(0, 0, 0); + let mut red = |v| { + let Color::RGB(ref mut r, _, _) = color; + *r = v; + }; + let mut green = |v| { + let Color::RGB(_, ref mut g, _) = color; + *g = v; + }; + let mut blue = |v| { + let Color::RGB(_, _, ref mut b) = color; + *b = v; + }; + red(1); + green(2); + blue(3); + assert_eq!(Color::RGB(1, 2, 3), color); +} |