diff options
Diffstat (limited to 'src/test/ui')
| -rw-r--r-- | src/test/ui/suggestions/as-ref.rs | 7 | ||||
| -rw-r--r-- | src/test/ui/suggestions/as-ref.stderr | 62 |
2 files changed, 68 insertions, 1 deletions
diff --git a/src/test/ui/suggestions/as-ref.rs b/src/test/ui/suggestions/as-ref.rs index 46d9461538c..a0535344185 100644 --- a/src/test/ui/suggestions/as-ref.rs +++ b/src/test/ui/suggestions/as-ref.rs @@ -17,4 +17,11 @@ fn main() { // note: do not suggest because of `E: usize` let x: &Result<usize, usize> = &Ok(3); let y: Result<&usize, usize> = x; //~ ERROR mismatched types [E0308] + + let multiple_ref_opt = &&Some(Foo); + multiple_ref_opt.map(|arg| takes_ref(arg)); //~ ERROR mismatched types [E0308] + multiple_ref_opt.and_then(|arg| Some(takes_ref(arg))); //~ ERROR mismatched types [E0308] + let multiple_ref_result = &&Ok(Foo); + multiple_ref_result.map(|arg| takes_ref(arg)); //~ ERROR mismatched types [E0308] + multiple_ref_result.and_then(|arg| Ok(takes_ref(arg))); //~ ERROR mismatched types [E0308] } diff --git a/src/test/ui/suggestions/as-ref.stderr b/src/test/ui/suggestions/as-ref.stderr index 1efd1b317b7..deafa9f48d4 100644 --- a/src/test/ui/suggestions/as-ref.stderr +++ b/src/test/ui/suggestions/as-ref.stderr @@ -97,6 +97,66 @@ LL | let y: Result<&usize, usize> = x; = note: expected enum `Result<&usize, usize>` found reference `&Result<usize, usize>` -error: aborting due to 7 previous errors +error[E0308]: mismatched types + --> $DIR/as-ref.rs:22:42 + | +LL | multiple_ref_opt.map(|arg| takes_ref(arg)); + | --- --------- ^^^ expected `&Foo`, found struct `Foo` + | | | + | | arguments to this function are incorrect + | help: consider using `as_ref` instead: `as_ref().map` + | +note: function defined here + --> $DIR/as-ref.rs:3:4 + | +LL | fn takes_ref(_: &Foo) {} + | ^^^^^^^^^ ------- + +error[E0308]: mismatched types + --> $DIR/as-ref.rs:23:52 + | +LL | multiple_ref_opt.and_then(|arg| Some(takes_ref(arg))); + | -------- --------- ^^^ expected `&Foo`, found struct `Foo` + | | | + | | arguments to this function are incorrect + | help: consider using `as_ref` instead: `as_ref().and_then` + | +note: function defined here + --> $DIR/as-ref.rs:3:4 + | +LL | fn takes_ref(_: &Foo) {} + | ^^^^^^^^^ ------- + +error[E0308]: mismatched types + --> $DIR/as-ref.rs:25:45 + | +LL | multiple_ref_result.map(|arg| takes_ref(arg)); + | --- --------- ^^^ expected `&Foo`, found struct `Foo` + | | | + | | arguments to this function are incorrect + | help: consider using `as_ref` instead: `as_ref().map` + | +note: function defined here + --> $DIR/as-ref.rs:3:4 + | +LL | fn takes_ref(_: &Foo) {} + | ^^^^^^^^^ ------- + +error[E0308]: mismatched types + --> $DIR/as-ref.rs:26:53 + | +LL | multiple_ref_result.and_then(|arg| Ok(takes_ref(arg))); + | -------- --------- ^^^ expected `&Foo`, found struct `Foo` + | | | + | | arguments to this function are incorrect + | help: consider using `as_ref` instead: `as_ref().and_then` + | +note: function defined here + --> $DIR/as-ref.rs:3:4 + | +LL | fn takes_ref(_: &Foo) {} + | ^^^^^^^^^ ------- + +error: aborting due to 11 previous errors For more information about this error, try `rustc --explain E0308`. |