rust/tests/ui/assign-assign.rs

//@ run-pass
// Issue 483 - Assignment expressions result in nil

fn test_assign() {
    let mut x: isize;
    let y: () = x = 10;
    assert_eq!(x, 10);
    assert_eq!(y, ());
    let mut z: () = x = 11;
    assert_eq!(x, 11);
    assert_eq!(z, ());
    z = x = 12;
    assert_eq!(x, 12);
    assert_eq!(z, ());
}

fn test_assign_op() {
    let mut x: isize = 0;
    let y: () = x += 10;
    assert_eq!(x, 10);
    assert_eq!(y, ());
    let mut z: () = x += 11;
    assert_eq!(x, 21);
    assert_eq!(z, ());
    z = x += 12;
    assert_eq!(x, 33);
    assert_eq!(z, ());
}

pub fn main() { test_assign(); test_assign_op(); }
tests: Add missing run-pass annotations 2019-07-26 21:54:25 +00:00			`//@ run-pass`
rustc: Assignment expressions have nil type. Closes #483 2011-06-14 00:25:36 +00:00			`// Issue 483 - Assignment expressions result in nil`
rustdoc: Replace no-pretty-expanded with pretty-expanded Now that features must be declared expanded source often does not compile. This adds 'pretty-expanded' to a bunch of test cases that still work. 2015-03-22 20:13:15 +00:00
rustc: Assignment expressions have nil type. Closes #483 2011-06-14 00:25:36 +00:00			`fn test_assign() {`
Mass rename uint/int to usize/isize Now that support has been removed, all lingering use cases are renamed. 2015-03-26 00:06:52 +00:00			`let mut x: isize;`
Fix warnings it tests 2013-08-17 15:37:42 +00:00			`let y: () = x = 10;`
Use assert_eq! rather than assert! where possible 2013-05-19 02:02:45 +00:00			`assert_eq!(x, 10);`
Fix warnings it tests 2013-08-17 15:37:42 +00:00			`assert_eq!(y, ());`
Adjust UI tests for `unit_bindings` - Either explicitly annotate `let x: () = expr;` where `x` has unit type, or remove the unit binding to leave only `expr;` instead. - Fix disjoint-capture-in-same-closure test 2023-06-12 08:55:36 +00:00			`let mut z: () = x = 11;`
Use assert_eq! rather than assert! where possible 2013-05-19 02:02:45 +00:00			`assert_eq!(x, 11);`
Fix warnings it tests 2013-08-17 15:37:42 +00:00			`assert_eq!(z, ());`
Reformat source tree (minus a couple tests that are still grumpy). 2011-06-15 18:19:50 +00:00			`z = x = 12;`
Use assert_eq! rather than assert! where possible 2013-05-19 02:02:45 +00:00			`assert_eq!(x, 12);`
Fix warnings it tests 2013-08-17 15:37:42 +00:00			`assert_eq!(z, ());`
rustc: Assignment expressions have nil type. Closes #483 2011-06-14 00:25:36 +00:00			`}`

			`fn test_assign_op() {`
Mass rename uint/int to usize/isize Now that support has been removed, all lingering use cases are renamed. 2015-03-26 00:06:52 +00:00			`let mut x: isize = 0;`
Fix warnings it tests 2013-08-17 15:37:42 +00:00			`let y: () = x += 10;`
Use assert_eq! rather than assert! where possible 2013-05-19 02:02:45 +00:00			`assert_eq!(x, 10);`
Fix warnings it tests 2013-08-17 15:37:42 +00:00			`assert_eq!(y, ());`
Adjust UI tests for `unit_bindings` - Either explicitly annotate `let x: () = expr;` where `x` has unit type, or remove the unit binding to leave only `expr;` instead. - Fix disjoint-capture-in-same-closure test 2023-06-12 08:55:36 +00:00			`let mut z: () = x += 11;`
Use assert_eq! rather than assert! where possible 2013-05-19 02:02:45 +00:00			`assert_eq!(x, 21);`
Fix warnings it tests 2013-08-17 15:37:42 +00:00			`assert_eq!(z, ());`
Reformat source tree (minus a couple tests that are still grumpy). 2011-06-15 18:19:50 +00:00			`z = x += 12;`
Use assert_eq! rather than assert! where possible 2013-05-19 02:02:45 +00:00			`assert_eq!(x, 33);`
Fix warnings it tests 2013-08-17 15:37:42 +00:00			`assert_eq!(z, ());`
rustc: Assignment expressions have nil type. Closes #483 2011-06-14 00:25:36 +00:00			`}`

check-fast fallout from removing export, r=burningtree 2013-02-02 03:43:17 +00:00			`pub fn main() { test_assign(); test_assign_op(); }`